Browse Source

Initial revision

tags/start
Felix von Leitner 20 years ago
commit
28486b8367
100 changed files with 2118 additions and 0 deletions
  1. +30
    -0
      CHANGES
  2. +339
    -0
      COPYING
  3. +50
    -0
      Makefile
  4. +41
    -0
      byte.h
  5. +19
    -0
      byte/byte_chr.3
  6. +16
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      byte/byte_chr.c
  7. +14
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      byte/byte_copy.3
  8. +15
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      byte/byte_copy.c
  9. +14
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      byte/byte_copyr.3
  10. +15
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      byte/byte_copyr.c
  11. +18
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      byte/byte_diff.3
  12. +21
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      byte/byte_diff.c
  13. +15
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      byte/byte_equal.3
  14. +19
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      byte/byte_rchr.3
  15. +16
    -0
      byte/byte_rchr.c
  16. +13
    -0
      byte/byte_zero.3
  17. +13
    -0
      byte/byte_zero.c
  18. +61
    -0
      fmt.h
  19. +20
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      fmt/fmt_8long.3
  20. +11
    -0
      fmt/fmt_8long.c
  21. +20
    -0
      fmt/fmt_double.3
  22. +82
    -0
      fmt/fmt_double.c
  23. +20
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      fmt/fmt_long.3
  24. +9
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      fmt/fmt_long.c
  25. +17
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      fmt/fmt_minus.3
  26. +9
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      fmt/fmt_minus.c
  27. +18
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      fmt/fmt_plusminus.3
  28. +9
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      fmt/fmt_plusminus.c
  29. +18
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      fmt/fmt_str.3
  30. +13
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      fmt/fmt_str.c
  31. +17
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      fmt/fmt_strn.3
  32. +14
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      fmt/fmt_strn.c
  33. +20
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      fmt/fmt_uint.3
  34. +22
    -0
      fmt/fmt_uint0.3
  35. +20
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      fmt/fmt_ulong.3
  36. +11
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      fmt/fmt_ulong.c
  37. +22
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      fmt/fmt_ulong0.3
  38. +15
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      fmt/fmt_ulong0.c
  39. +21
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      fmt/fmt_xlong.3
  40. +15
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      fmt/fmt_xlong.c
  41. +28
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      ip6.h
  42. +7
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      ndelay.h
  43. +29
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      open.h
  44. +18
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      open/open_append.3
  45. +7
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      open/open_append.c
  46. +22
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      open/open_excl.3
  47. +7
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      open/open_excl.c
  48. +13
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      open/open_read.3
  49. +7
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      open/open_read.c
  50. +15
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      open/open_trunc.3
  51. +7
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      open/open_trunc.c
  52. +14
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      open/open_write.3
  53. +7
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      open/open_write.c
  54. +61
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      scan.h
  55. +8
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      scan/scan_8int.c
  56. +13
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      scan/scan_8long.3
  57. +13
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      scan/scan_8long.c
  58. +8
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      scan/scan_8short.c
  59. +13
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      scan/scan_charsetnskip.3
  60. +15
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      scan/scan_charsetnskip.c
  61. +13
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      scan/scan_double.3
  62. +51
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      scan/scan_double.c
  63. +8
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      scan/scan_int.c
  64. +19
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      scan/scan_long.c
  65. +13
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      scan/scan_noncharsetnskip.3
  66. +15
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      scan/scan_noncharsetnskip.c
  67. +15
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      scan/scan_nonwhitenskip.3
  68. +9
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      scan/scan_nonwhitenskip.c
  69. +12
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      scan/scan_plusminus.3
  70. +10
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      scan/scan_plusminus.c
  71. +8
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      scan/scan_short.c
  72. +8
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      scan/scan_uint.c
  73. +13
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      scan/scan_ulong.3
  74. +13
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      scan/scan_ulong.c
  75. +8
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      scan/scan_ushort.c
  76. +15
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      scan/scan_whitenskip.3
  77. +9
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      scan/scan_whitenskip.c
  78. +8
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      scan/scan_xint.c
  79. +17
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      scan/scan_xlong.3
  80. +23
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      scan/scan_xlong.c
  81. +8
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      scan/scan_xshort.c
  82. +58
    -0
      socket.h
  83. +17
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      socket/socket_connect4.c
  84. +35
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      socket/socket_connect6.c
  85. +9
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      socket/socket_tcp4.c
  86. +9
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      socket/socket_tcp6.c
  87. +9
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      socket/socket_udp4.c
  88. +9
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      socket/socket_udp6.c
  89. +46
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      str.h
  90. +12
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      str/str_chr.3
  91. +13
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      str/str_chr.c
  92. +14
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      str/str_copy.3
  93. +13
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      str/str_copy.c
  94. +17
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      str/str_diff.3
  95. +20
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      str/str_diff.c
  96. +18
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      str/str_diffn.3
  97. +21
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      str/str_diffn.c
  98. +15
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      str/str_equal.3
  99. +12
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      str/str_len.3
  100. +12
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      str/str_len.c

+ 30
- 0
CHANGES View File

@@ -0,0 +1,30 @@
0.6:
changed name to libowfat

0.5:
made subdirectories for the different libraries.
moved the sources into the corresponding subdirectory.
imported my man pages from libdjb.
removed fmt_int.c and fmt_uint.c (they are macros in fmt.h).
corrected comment in open.h for open_excl.
wrote new man pages for fmt_double, scan_double, the sign fmt_ and
scan_ routines, the whitespace and charset scan_ routines, and the
str and stralloc routines.

0.4:
implemented stralloc.

0.3:
implemented uint16, uint32 and uint64. The header files try to
define shortcut endianness conversion routines that do not convert
anything.
implemented open (I hope I got open_excl right, I couldn't find an
implementationen).

0.2:
implemented the scan, fmt and str interfaces.
added adapted fmt_double and scan_double from diet libc.

0.1:
initial release.
implemented the byte interface.

+ 339
- 0
COPYING View File

@@ -0,0 +1,339 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc.
675 Mass Ave, Cambridge, MA 02139, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.

Preamble

The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.

When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.

To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.

We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
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Finally, any free program is threatened constantly by software
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patent must be licensed for everyone's free use or not licensed at all.

The precise terms and conditions for copying, distribution and
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GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not
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is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.

1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.

You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

2. You may modify your copy or copies of the Program or any portion
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a) You must cause the modified files to carry prominent notices
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b) You must cause any work that you distribute or publish, that in
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c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
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announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
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License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
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Thus, it is not the intent of this section to claim rights or contest
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collective works based on the Program.

In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.

3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

a) Accompany it with the complete corresponding machine-readable
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distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
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except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
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5. You are not required to accept this License, since you have not
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license would not permit royalty-free redistribution of the Program by
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any particular circumstance, the balance of the section is intended to
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It is not the purpose of this section to induce you to infringe any
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such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
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This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.

9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
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address new problems or concerns.

Each version is given a distinguishing version number. If the Program
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either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
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Foundation.

10. If you wish to incorporate parts of the Program into other free
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Software Foundation, write to the Free Software Foundation; we sometimes
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NO WARRANTY

11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.

12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

END OF TERMS AND CONDITIONS
Appendix: How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.

<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice

This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

+ 50
- 0
Makefile View File

@@ -0,0 +1,50 @@
all: t byte.a fmt.a scan.a str.a uint.a open.a stralloc.a unix.a socket.a

VPATH=str:byte:fmt:scan:uint:open:stralloc:unix:socket

CC=egcc
#CFLAGS=-I. -pipe -Wall -Os -march=pentiumpro -fomit-frame-pointer -fschedule-insns2 -Wall
CFLAGS=-I. -I../dietlibc/include -pipe -Wall -g #-Os -march=athlon -mcpu=athlon -fomit-frame-pointer -fschedule-insns2
#CFLAGS=-I../dietlibc/include -I. -pipe -Wall -Os -march=pentiumpro -mcpu=athlon -fomit-frame-pointer -fschedule-insns2 -Wall
#CFLAGS=-I../dietlibc/include -pipe -Os -march=pentiumpro -mcpu=pentiumpro -fomit-frame-pointer -fschedule-insns2 -Wall

BYTE_OBJS=$(patsubst byte/%.c,%.o,$(wildcard byte/*.c))
FMT_OBJS=$(patsubst fmt/%.c,%.o,$(wildcard fmt/*.c))
SCAN_OBJS=$(patsubst scan/%.c,%.o,$(wildcard scan/*.c))
STR_OBJS=$(patsubst str/%.c,%.o,$(wildcard str/*.c))
UINT_OBJS=$(patsubst uint/%.c,%.o,$(wildcard uint/*.c))
OPEN_OBJS=$(patsubst open/%.c,%.o,$(wildcard open/*.c))
STRA_OBJS=$(patsubst stralloc/%.c,%.o,$(wildcard stralloc/*.c))
UNIX_OBJS=$(patsubst unix/%.c,%.o,$(wildcard unix/*.c))
SOCKET_OBJS=$(patsubst socket/%.c,%.o,$(wildcard socket/*.c))

$(BYTE_OBJS): byte.h
$(FMT_OBJS): fmt.h
$(SCAN_OBJS): scan.h
$(STR_OBJS): str.h
$(UINT_OBJS): uint16.h uint32.h
$(STRA_OBJS): stralloc.h
$(SOCKET_OBJS): socket.h

byte.a: $(BYTE_OBJS)
fmt.a: $(FMT_OBJS)
scan.a: $(SCAN_OBJS)
str.a: $(STR_OBJS)
uint.a: $(UINT_OBJS)
open.a: $(OPEN_OBJS)
stralloc.a: $(STRA_OBJS)
unix.a: $(UNIX_OBJS)
socket.a: $(SOCKET_OBJS)

%.a:
ar cr $@ $^

t: t.o socket.a stralloc.a str.a fmt.a scan.a str.a uint.a open.a byte.a
gcc -g -o $@ $^

.PHONY: clean tar
clean:
rm -f *.o *.a core t

tar:
cd .. && tar cIf libowfat.tar.bz2 libowfat

+ 41
- 0
byte.h View File

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#ifndef BYTE_H
#define BYTE_H

#include <sys/cdefs.h>

#ifndef __pure__
#define __pure__
#endif
#ifndef __THROW
#define __THROW
#endif

/* byte_chr returns the smallest integer i between 0 and len-1
* inclusive such that one[i] equals needle, or len it not found. */
unsigned int byte_chr(const void* haystack, unsigned int len, char needle) __THROW __pure__;

/* byte_rchr returns the largest integer i between 0 and len-1 inclusive
* such that one[i] equals needle, or len if not found. */
unsigned int byte_rchr(const void* haystack,unsigned int len,char needle) __THROW __pure__;

/* byte_copy copies in[0] to out[0], in[1] to out[1], ... and in[len-1]
* to out[len-1]. */
void byte_copy(void* out, unsigned int len, const void* in) __THROW;

/* byte_copyr copies in[len-1] to out[len-1], in[len-2] to out[len-2],
* ... and in[0] to out[0] */
void byte_copyr(void* out, unsigned int len, const void* in) __THROW;

/* byte_diff returns negative, 0, or positive, depending on whether the
* string a[0], a[1], ..., a[len-1] is lexicographically smaller
* than, equal to, or greater than the string b[0], b[1], ...,
* b[len-1]. When the strings are different, byte_diff does not read
* bytes past the first difference. */
int byte_diff(const void* a, unsigned int len, const void* b) __THROW __pure__;

/* byte_zero sets the bytes out[0], out[1], ..., out[len-1] to 0 */
void byte_zero(void* out, unsigned len) __THROW;

#define byte_equal(s,n,t) (!byte_diff((s),(n),(t)))

#endif

+ 19
- 0
byte/byte_chr.3 View File

@@ -0,0 +1,19 @@
.TH byte_chr 3
.SH NAME
byte_chr \- search for a byte in a string
.SH SYNTAX
.B #include <byte.h>

int \fBbyte_chr\fP(const char *\fIhaystack\fR,unsigned int \fIlen\fR,char \fIneedle\fR);
.SH DESCRIPTION
\fIbyte_chr\fR returns the smallest integer \fIi\fR between 0 and
\fIlen\fR-1 inclusive such that \fIone\fR[\fIi\fR] equals \fIneedle\fR.

If no such integer exists, byte_chr returns \fIlen\fR.

byte_chr may read all bytes \fIone\fR[0], \fIone\fR[1], ...,
\fIone\fR[\fIlen\fR-1], even if not all the bytes are relevant to the
answer.

.SH "SEE ALSO"
byte_rchr(3)

+ 16
- 0
byte/byte_chr.c View File

@@ -0,0 +1,16 @@
#include "byte.h"

/* byte_chr returns the smallest integer i between 0 and len-1
* inclusive such that one[i] equals needle, or len it not found. */
unsigned int byte_chr(const void* haystack, unsigned int len, char needle) {
register char c=needle;
register const char* s=haystack;
register const char* t=s+len;
for (;;) {
if (s==t) break; if (*s==c) break; ++s;
if (s==t) break; if (*s==c) break; ++s;
if (s==t) break; if (*s==c) break; ++s;
if (s==t) break; if (*s==c) break; ++s;
}
return s-(const char*)haystack;
}

+ 14
- 0
byte/byte_copy.3 View File

@@ -0,0 +1,14 @@
.TH byte_copy 3
.SH NAME
byte_copy \- copy a string
.SH SYNTAX
.B #include <byte.h>

void \fBbyte_copy\fP(char *\fIout\fR,unsigned int \fIlen\fR,const char *\fIin\fR);
.SH DESCRIPTION
\fIbyte_copy\fR copies \fIin\fR[0] to \fIout\fR[0], \fIin\fR[1] to
\fIout\fR[1], etc., and finally \fIin\fR[\fIlen\fR-1] to
\fIout\fR[\fIlen\fR-1].

.SH "SEE ALSO"
byte_copyr(3)

+ 15
- 0
byte/byte_copy.c View File

@@ -0,0 +1,15 @@
#include "byte.h"

/* byte_copy copies in[0] to out[0], in[1] to out[1], ... and in[len-1]
* to out[len-1]. */
void byte_copy(void* out, unsigned int len, const void* in) {
register char* s=out;
register const char* t=in;
register const char* u=in+len;
for (;;) {
if (t==u) break; *s=*t; ++s; ++t;
if (t==u) break; *s=*t; ++s; ++t;
if (t==u) break; *s=*t; ++s; ++t;
if (t==u) break; *s=*t; ++s; ++t;
}
}

+ 14
- 0
byte/byte_copyr.3 View File

@@ -0,0 +1,14 @@
.TH byte_copyr 3
.SH NAME
byte_copyr \- copy a string
.SH SYNTAX
.B #include <byte.h>

void \fBbyte_copyr\fP(char *\fIout\fR,unsigned int \fIlen\fR,const char *\fIin\fR);
.SH DESCRIPTION
\fIbyte_copyr\fR copies \fIin\fR[\fIlen\fR-1] to \fIout\fR[\fIlen\fR-1],
\fIin\fR[\fIlen\fR-2] to \fIout\fR[\fIlen\fR-2], etc., and
\fIin\fR[0] to \fIout\fR[0].

.SH "SEE ALSO"
byte_copy(3)

+ 15
- 0
byte/byte_copyr.c View File

@@ -0,0 +1,15 @@
#include "byte.h"

/* byte_copyr copies in[len-1] to out[len-1], in[len-2] to out[len-2],
* ... and in[0] to out[0] */
void byte_copyr(void* out, unsigned int len, const void* in) {
register char* s=out+len;
register const char* t=in;
register const char* u=t+len;
for (;;) {
if (t>=u) break; --u; --s; *s=*u;
if (t>=u) break; --u; --s; *s=*u;
if (t>=u) break; --u; --s; *s=*u;
if (t>=u) break; --u; --s; *s=*u;
}
}

+ 18
- 0
byte/byte_diff.3 View File

@@ -0,0 +1,18 @@
.TH byte_diff 3
.SH NAME
byte_diff \- compare two strings
.SH SYNTAX
.B #include <byte.h>

int \fBbyte_diff\fP(const char *\fIone\fR,unsigned int \fIlen\fR,const char *\fItwo\fR);
.SH DESCRIPTION
\fIbyte_diff\fR returns negative, 0, or positive, depending on whether
the string \fIone\fR[0], \fIone\fR[1], ..., \fIone\fR[\fIlen\fR-1] is
lexicographically smaller than, equal to, or greater than the string
\fIone\fR[0], \fIone\fR[1], ..., \fIone\fR[\fIlen\fR-1].

When the strings are different, byte_diff does not read bytes past the
first difference.

.SH "SEE ALSO"
byte_equal(3)

+ 21
- 0
byte/byte_diff.c View File

@@ -0,0 +1,21 @@
#include "byte.h"

/* byte_diff returns negative, 0, or positive, depending on whether the
* string one[0], one[1], ..., one[len-1] is lexicographically smaller
* than, equal to, or greater than the string one[0], one[1], ...,
* one[len-1]. When the strings are different, byte_diff does not read
* bytes past the first difference. */
int byte_diff(const void* a, unsigned int len, const void* b) {
register const char* s=a;
register const char* t=b;
register const char* u=b+len;
register int j;
j=0;
for (;;) {
if (t==u) break; if ((j=(*s-*t))) break; ++s; ++t;
if (t==u) break; if ((j=(*s-*t))) break; ++s; ++t;
if (t==u) break; if ((j=(*s-*t))) break; ++s; ++t;
if (t==u) break; if ((j=(*s-*t))) break; ++s; ++t;
}
return j;
}

+ 15
- 0
byte/byte_equal.3 View File

@@ -0,0 +1,15 @@
.TH byte_equal 3
.SH NAME
byte_equal \- compare two strings
.SH SYNTAX
.B #include <byte.h>

int \fBbyte_equal\fP(const char *\fIone\fR,unsigned int \fIlen\fR,const char *\fItwo\fR);
.SH DESCRIPTION
\fIbyte_equal\fR returns 1 if the strings are equal, 0 otherwise.

When the strings are different, byte_equal does not read bytes past the
first difference.

.SH "SEE ALSO"
byte_diff(3)

+ 19
- 0
byte/byte_rchr.3 View File

@@ -0,0 +1,19 @@
.TH byte_rchr 3
.SH NAME
byte_rchr \- search for a byte in a string
.SH SYNTAX
.B #include <byte.h>

int \fBbyte_rchr\fP(const char *\fIhaystack\fR,unsigned int \fIlen\fR,char \fIneedle\fR);
.SH DESCRIPTION
\fIbyte_chr\fR returns the largest integer \fIi\fR between 0 and
\fIlen\fR-1 inclusive such that \fIone\fR[\fIi\fR] equals \fIneedle\fR.

If no such integer exists, byte_chr returns \fIlen\fR.

byte_rchr may read all bytes \fIone\fR[0], \fIone\fR[1], ...,
\fIone\fR[\fIlen\fR-1], even if not all the bytes are relevant to the
answer.

.SH "SEE ALSO"
byte_chr(3)

+ 16
- 0
byte/byte_rchr.c View File

@@ -0,0 +1,16 @@
#include "byte.h"

/* byte_rchr returns the largest integer i between 0 and len-1 inclusive
* such that one[i] equals needle, or len if not found. */
unsigned int byte_rchr(const void* haystack,unsigned int len,char needle) {
register char c=needle;
register const char* s=haystack;
register const char* t=s+len;
for (;;) {
--t; if (s<=t) break; if (*t==c) break;
--t; if (s<=t) break; if (*t==c) break;
--t; if (s<=t) break; if (*t==c) break;
--t; if (s<=t) break; if (*t==c) break;
}
return t-s;
}

+ 13
- 0
byte/byte_zero.3 View File

@@ -0,0 +1,13 @@
.TH byte_zero 3
.SH NAME
byte_zero \- initialize a string
.SH SYNTAX
.B #include <byte.h>

void \fBbyte_zero\fP(char *\fIout\fR,unsigned int \fIlen\fR);
.SH DESCRIPTION
\fIbyte_zero\fR sets \fIout\fR[0], \fIout\fR[1], ...,
\fIout\fR[\fIlen\fR-1] to 0.

.SH "SEE ALSO"
byte_copy(3), byte_copyr(3)

+ 13
- 0
byte/byte_zero.c View File

@@ -0,0 +1,13 @@
#include "byte.h"

/* byte_zero sets the bytes out[0], out[1], ..., out[len-1] to 0 */
void byte_zero(void* out, unsigned len) {
register char* s=out;
register const char* t=s+len;
for (;;) {
if (s==t) break; *s=0; ++s;
if (s==t) break; *s=0; ++s;
if (s==t) break; *s=0; ++s;
if (s==t) break; *s=0; ++s;
}
}

+ 61
- 0
fmt.h View File

@@ -0,0 +1,61 @@
#ifndef FMT_H
#define FMT_H

#include "str.h"

#define FMT_ULONG 40 /* enough space to hold 2^128 - 1 in decimal, plus \0 */
#define FMT_8LONG 44 /* enough space to hold 2^128 - 1 in octal, plus \0 */
#define FMT_XLONG 33 /* enough space to hold 2^128 - 1 in hexadecimal, plus \0 */
#define FMT_LEN ((char *) 0) /* convenient abbreviation */

/* The formatting routines do not append \0!
* Use them like this: buf[fmt_ulong(buf,number)]=0; */

/* convert signed src integer -23 to ASCII '-','2','3', return length.
* If dest is not NULL, write result to dest */
unsigned int fmt_long(char *dest,signed long src) __THROW;

/* convert unsigned src integer 23 to ASCII '2','3', return length.
* If dest is not NULL, write result to dest */
unsigned int fmt_ulong(char *dest,unsigned long src) __THROW;

/* convert unsigned src integer 0x23 to ASCII '2','3', return length.
* If dest is not NULL, write result to dest */
unsigned int fmt_xlong(char *dest,unsigned long src) __THROW;

/* convert unsigned src integer 023 to ASCII '2','3', return length.
* If dest is not NULL, write result to dest */
unsigned int fmt_8long(char *dest,unsigned long src) __THROW;

#define fmt_uint(dest,src) fmt_ulong(dest,src)
#define fmt_int(dest,src) fmt_long(dest,src)
#define fmt_xint(dest,src) fmt_xlong(dest,src)
#define fmt_8int(dest,src) fmt_8long(dest,src)

/* Like fmt_ulong, but prepend '0' while length is smaller than padto.
* Does not truncate! */
unsigned int fmt_ulong0(char *,unsigned long src,unsigned int padto) __THROW;

#define fmt_uint0(buf,src,padto) fmt_ulong0(buf,src,padto)

/* convert src double 1.7 to ASCII '1','.','7', return length.
* If dest is not NULL, write result to dest */
unsigned int fmt_double(char *dest, double d,int max,int prec) __THROW;

/* if src is negative, write '-' and return 1.
* if src is positive, write '+' and return 1.
* otherwise return 0 */
unsigned int fmt_plusminus(char *dest,int src) __THROW;

/* if src is negative, write '-' and return 1.
* otherwise return 0. */
unsigned int fmt_minus(char *dest,int src) __THROW;

/* copy str to dest until \0 byte, return number of copied bytes. */
unsigned int fmt_str(char *dest,const char *src) __THROW;

/* copy str to dest until \0 byte or limit bytes copied.
* return number of copied bytes. */
unsigned int fmt_strn(char *dest,const char *src,unsigned int limit) __THROW;

#endif

+ 20
- 0
fmt/fmt_8long.3 View File

@@ -0,0 +1,20 @@
.TH fmt_8long 3
.SH NAME
fmt_8long \- write an octal ASCII representation of an unsigned long integer
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_8long\fP(char *\fIdest\fR,unsigned long \fIsource\fR);
.SH DESCRIPTION
fmt_8long writes an ASCII representation ('0' to '7', base 8) of
\fIsource\fR to \fIdest\fR and returns the number of bytes written.

fmt_8long does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_8long returns the
number of bytes it would have written.

For convenience, fmt.h defines the integer FMT_8LONG to be big enough to
contain every possible fmt_8long output plus \\0.
.SH "SEE ALSO"
scan_8long(3)

+ 11
- 0
fmt/fmt_8long.c View File

@@ -0,0 +1,11 @@
#include "fmt.h"

unsigned int fmt_8long(char *dest,unsigned long i) {
register unsigned long len,tmp;
/* first count the number of bytes needed */
for (len=1, tmp=i; tmp>7; ++len) tmp/=8;
if (dest)
for (tmp=i, dest+=len; tmp; tmp/=8)
*--dest = (tmp&7)+'0';
return len;
}

+ 20
- 0
fmt/fmt_double.3 View File

@@ -0,0 +1,20 @@
.TH fmt_double 3
.SH NAME
fmt_double \- write an ASCII representation of a double
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_double\fP(char *\fIdest\fR,double \fId\fR,int
\fImaxlen\fR,int \fIprec\fR);
.SH DESCRIPTION
fmt_double writes an ASCII representation ('0' to '9', base 10) of
\fId\fR to \fIdest\fR and returns the number of bytes written. No more
than \fImaxlen\fR bytes will be written. \fIprec\fR digits will be
written, using scientific notation if necessary.

fmt_double does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_double returns the
number of bytes it would have written.
.SH "SEE ALSO"
scan_double(3)

+ 82
- 0
fmt/fmt_double.c View File

@@ -0,0 +1,82 @@
#include "fmt.h"

unsigned int fmt_double(char *dest, double d,int maxlen,int prec) {
unsigned long long *x=(unsigned long long *)&d;
/* step 1: extract sign, mantissa and exponent */
signed int s=*x>>63;
signed long e=((*x>>52)&((1<<11)-1))-1023;
/* unsigned long long m=*x & ((1ull<<52)-1); */
/* step 2: exponent is base 2, compute exponent for base 10 */
signed long e10=1+(long)(e*0.30102999566398119802); /* log10(2) */
/* step 3: calculate 10^e10 */
int i;
double tmp=10.0;
char *oldbuf=dest;
int initial=1;
int writeok=(dest!=0);

if (s) { d=-d; if (writeok) *dest='-'; --maxlen; dest++; }
if ((i=e10)>=0) {
while (i>10) { tmp=tmp*1e10; i-=10; }
while (i>1) { tmp=tmp*10; --i; }
} else {
i=(e10=-e10);
while (i>10) { tmp=tmp*1e-10; i-=10; }
while (i>1) { tmp=tmp/10; --i; }
}
while (d/tmp<1) {
--e10;
tmp/=10.0;
}
/* step 4: see if precision is sufficient to display all digits */
if (e10>prec) {
/* use scientific notation */
int len=fmt_double(writeok?dest:0,d/tmp,maxlen,prec);
if (len==0) return 0;
maxlen-=len; dest+=len;
if (--maxlen>=0) {
if (writeok) *dest='e';
++dest;
}
for (len=1000; len>0; len/=10) {
if (e10>=len || !initial) {
if (--maxlen>=0) {
if (writeok) *dest=(e10/len)+'0';
++dest;
}
initial=0;
e10=e10%len;
}
}
if (maxlen>=0) return dest-oldbuf;
return 0;
}
/* step 5: loop through the digits, inserting the decimal point when
* appropriate */
for (; prec>0; ) {
double tmp2=d/tmp;
char c;
d-=((int)tmp2*tmp);
c=((int)tmp2);
if ((!initial)||c) {
if (--maxlen>=0) {
initial=0;
if (writeok) *dest=c+'0';
++dest;
} else
return 0;
--prec;
}
if (tmp>0.5 && tmp<1.5) {
tmp=1e-1;
initial=0;
if (--maxlen>=0) {
if (writeok) *dest='.';
++dest;
} else
return 0;
} else
tmp/=10.0;
}
return dest-oldbuf;
}

+ 20
- 0
fmt/fmt_long.3 View File

@@ -0,0 +1,20 @@
.TH fmt_long 3
.SH NAME
fmt_long \- write an ASCII representation of a long integer
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_long\fP(char *\fIdest\fR,unsigned int \fIsource\fR);
.SH DESCRIPTION
fmt_long writes an ASCII representation ('-' and '0' to '9', base 10) of
\fIsource\fR to \fIdest\fR and returns the number of bytes written.

fmt_long does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_long returns the number
of bytes it would have written.

For convenience, fmt.h defines the integer FMT_ULONG to be big enough to
contain every possible fmt_ulong output plus \\0.
.SH "SEE ALSO"
scan_long(3)

+ 9
- 0
fmt/fmt_long.c View File

@@ -0,0 +1,9 @@
#include "fmt.h"

unsigned int fmt_long(char *dest,long int i) {
if (i<0) {
if (dest) *dest='-';
return fmt_ulong(dest+1,-i);
} else
return fmt_ulong(dest,i);
}

+ 17
- 0
fmt/fmt_minus.3 View File

@@ -0,0 +1,17 @@
.TH fmt_minus 3
.SH NAME
fmt_minus \- write '-' for negative integers
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_minus\fP(char *\fIdest\fR,signed int \fIsource\fR);
.SH DESCRIPTION
fmt_minus writes '-' if \fIsource\fR is negative, nothing otherwise. It
returns the number of bytes written.

fmt_minus does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_minus returns the number
of bytes it would have written.
.SH "SEE ALSO"
fmt_plusminus(3), scan_plusminus(3)

+ 9
- 0
fmt/fmt_minus.c View File

@@ -0,0 +1,9 @@
#include "fmt.h"

unsigned int fmt_minus(char *dest,int i) {
if (i<0) {
if (dest) *dest='-';
return 1;
}
return 0;
}

+ 18
- 0
fmt/fmt_plusminus.3 View File

@@ -0,0 +1,18 @@
.TH fmt_plusminus 3
.SH NAME
fmt_plusminus \- write '+' or '-'
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_plusminus\fP(char *\fIdest\fR,signed int \fIsource\fR);
.SH DESCRIPTION
fmt_plusminus writes '-' to \fIdest\fR if \fIsource\fR is negative, '+'
if \fIsource\fR is positive, nothing otherwise. It returns the number
of bytes written.

fmt_plusminus does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_plusminus returns the number
of bytes it would have written.
.SH "SEE ALSO"
fmt_minus(3), scan_plusminus(3)

+ 9
- 0
fmt/fmt_plusminus.c View File

@@ -0,0 +1,9 @@
#include "fmt.h"

unsigned int fmt_plusminus(char *dest,int i) {
if (i) {
if (dest) *dest=(i>=0?'+':'-');
return 1;
}
return 0;
}

+ 18
- 0
fmt/fmt_str.3 View File

@@ -0,0 +1,18 @@
.TH fmt_str 3
.SH NAME
fmt_str \- write an ASCII string
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_str\fP(char *\fIdest\fR,const char *\fIsource\fR);
.SH DESCRIPTION
fmt_str copies all leading nonzero bytes from \fIsource\fR to \fIdest\fR
and returns the number of bytes it copied.

fmt_str does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_str returns the number
of bytes it would have written, i.e. the number of leading nonzero bytes
of \fIsource\fR.
.SH "SEE ALSO"
strcpy(3)

+ 13
- 0
fmt/fmt_str.c View File

@@ -0,0 +1,13 @@
#include "fmt.h"

unsigned int fmt_str(char *out,const char *in) {
register char* s=out;
register const char* t=in;
for (;;) {
if (!*t) break; *s=*t; ++s; ++t;
if (!*t) break; *s=*t; ++s; ++t;
if (!*t) break; *s=*t; ++s; ++t;
if (!*t) break; *s=*t; ++s; ++t;
}
return s-out;
}

+ 17
- 0
fmt/fmt_strn.3 View File

@@ -0,0 +1,17 @@
.TH fmt_strn 3
.SH NAME
fmt_str \- write an ASCII string
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_strn\fP(char *\fIdest\fR,const char *\fIsource\fR,unsigned int maxlen);
.SH DESCRIPTION
fmt_str copies at most \fImaxlen\fR leading nonzero bytes from
\fIsource\fR to \fIdest\fR and returns the number of bytes it copied.

fmt_str does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_strn returns the number
of bytes it would have written.
.SH "SEE ALSO"
strncpy(3)

+ 14
- 0
fmt/fmt_strn.c View File

@@ -0,0 +1,14 @@
#include "fmt.h"

unsigned int fmt_strn(char *out,const char *in,unsigned int limit) {
register char* s=out;
register const char* t=in;
register const char* u=out+limit;
for (;;) {
if (!*t) break; *s=*t; if (s==u) break; ++s; ++t;
if (!*t) break; *s=*t; if (s==u) break; ++s; ++t;
if (!*t) break; *s=*t; if (s==u) break; ++s; ++t;
if (!*t) break; *s=*t; if (s==u) break; ++s; ++t;
}
return s-out;
}

+ 20
- 0
fmt/fmt_uint.3 View File

@@ -0,0 +1,20 @@
.TH fmt_uint 3
.SH NAME
fmt_uint \- write an ASCII representation of an unsigned integer
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_uint\fP(char *\fIdest\fR,unsigned int \fIsource\fR);
.SH DESCRIPTION
fmt_uint writes an ASCII representation ('0' to '9', base 10) of
\fIsource\fR to \fIdest\fR and returns the number of bytes written.

fmt_uint does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_uint returns the number
of bytes it would have written.

For convenience, fmt.h defines the integer FMT_ULONG to be big enough to
contain every possible fmt_uint output plus \\0.
.SH "SEE ALSO"
scan_uint(3), fmt_uint0(3)

+ 22
- 0
fmt/fmt_uint0.3 View File

@@ -0,0 +1,22 @@
.TH fmt_uint0 3
.SH NAME
fmt_uint0 \- write a zero-padded ASCII representation of an unsigned integer
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_uint0\fP(char *\fIdest\fR, unsigned int \fIsource\fR, unsigned int \fIn\fR);
.SH DESCRIPTION
fmt_uint0 writes an ASCII representation ('0' to '9', base 10) of
\fIsource\fR to \fIdest\fR and returns the number of bytes written.
The output is padded with '0'-bytes until it encompasses at least
\fIn\fR bytes, but it will not be truncated if it does not fit.

fmt_uint0 does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_uint0 returns the number
of bytes it would have written.

For convenience, fmt.h defines the integer FMT_ULONG to be big enough to
contain every possible fmt_uint output plus \\0.
.SH "SEE ALSO"
scan_uint(3), fmt_uint(3)

+ 20
- 0
fmt/fmt_ulong.3 View File

@@ -0,0 +1,20 @@
.TH fmt_ulong 3
.SH NAME
fmt_ulong \- write an ASCII representation of an unsigned long integer
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_ulong\fP(char *\fIdest\fR,unsigned long \fIsource\fR);
.SH DESCRIPTION
fmt_ulong writes an ASCII representation ('0' to '9', base 10) of
\fIsource\fR to \fIdest\fR and returns the number of bytes written.

fmt_ulong does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_ulong returns the
number of bytes it would have written.

For convenience, fmt.h defines the integer FMT_ULONG to be big enough to
contain every possible fmt_ulong output plus \\0.
.SH "SEE ALSO"
scan_ulong(3)

+ 11
- 0
fmt/fmt_ulong.c View File

@@ -0,0 +1,11 @@
#include "fmt.h"

unsigned int fmt_ulong(char *dest,unsigned long i) {
register unsigned long len,tmp;
/* first count the number of bytes needed */
for (len=1, tmp=i; tmp>9; ++len) tmp/=10;
if (dest)
for (tmp=i, dest+=len; tmp; tmp/=10)
*--dest = (tmp%10)+'0';
return len;
}

+ 22
- 0
fmt/fmt_ulong0.3 View File

@@ -0,0 +1,22 @@
.TH fmt_ulong0 3
.SH NAME
fmt_ulong0 \- write a zero-padded ASCII representation of an unsigned long integer
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_uint0\fP(char *\fIdest\fR, unsigned long \fIsource\fR, unsigned int \fIn\fR);
.SH DESCRIPTION
fmt_ulong0 writes an ASCII representation ('0' to '9', base 10) of
\fIsource\fR to \fIdest\fR and returns the number of bytes written.
The output is padded with '0'-bytes until it encompasses at least
\fIn\fR bytes, but it will not be truncated if it does not fit.

fmt_ulong0 does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_ulong0 returns the number
of bytes it would have written.

For convenience, fmt.h defines the integer FMT_ULONG to be big enough to
contain every possible fmt_ulong output plus \\0.
.SH "SEE ALSO"
scan_ulong(3), fmt_ulong(3)

+ 15
- 0
fmt/fmt_ulong0.c View File

@@ -0,0 +1,15 @@
#include "fmt.h"

unsigned int fmt_ulong0(char *dest,unsigned long i,unsigned int pad) {
register unsigned int len;
register unsigned long tmp;
/* first count the number of bytes needed */
for (len=1, tmp=i; tmp>9; ++len) tmp/=10;
/* now see if we need to pad */
if (dest) {
while (len<pad) { *dest='0'; ++dest; ++len; }
fmt_uint(dest,i);
return len;
} else
return (len<pad?pad:len);
}

+ 21
- 0
fmt/fmt_xlong.3 View File

@@ -0,0 +1,21 @@
.TH fmt_xlong 3
.SH NAME
fmt_xlong \- write a hexadecimal ASCII representation of an unsigned long integer
.SH SYNTAX
.B #include <fmt.h>

unsigned int \fBfmt_xlong\fP(char *\fIdest\fR,unsigned long \fIsource\fR);
.SH DESCRIPTION
fmt_xlong writes an ASCII representation ('0' to '9' and 'a' to 'f',
base 16) of \fIsource\fR to \fIdest\fR and returns the number of bytes
written.

fmt_xlong does not append \\0.

If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_xlong returns the
number of bytes it would have written.

For convenience, fmt.h defines the integer FMT_XLONG to be big enough to
contain every possible fmt_xlong output plus \\0.
.SH "SEE ALSO"
scan_xlong(3)

+ 15
- 0
fmt/fmt_xlong.c View File

@@ -0,0 +1,15 @@
#include "fmt.h"

static inline char tohex(char c) {
return c>10?c-10+'a':c+'0';
}

unsigned int fmt_xlong(char *dest,unsigned long i) {
register unsigned long len,tmp;
/* first count the number of bytes needed */
for (len=1, tmp=i; tmp>15; ++len) tmp>>=4;
if (dest)
for (tmp=i, dest+=len; tmp; tmp>>=4)
*--dest = tohex(tmp&15);
return len;
}

+ 28
- 0
ip6.h View File

@@ -0,0 +1,28 @@
#ifndef IP6_H
#define IP6_H

extern unsigned int ip6_scan(const char *src,char *ip);
extern unsigned int ip6_fmt(char *dest,const char *ip);

extern unsigned int ip6_scan_flat(const char *src,char *);
extern unsigned int ip6_fmt_flat(char *dest,const char *);

/*
ip6 address syntax: (h = hex digit), no leading '0' required
1. hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh
2. any number of 0000 may be abbreviated as "::", but only once
flat ip6 address syntax:
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
*/

#define IP6_FMT 40

static const unsigned char V4mappedprefix[12]={0,0,0,0,0,0,0,0,0,0,0xff,0xff};
static const unsigned char V6loopback[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1};
static const unsigned char V6any[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

#define ip6_isv4mapped(ip) (byte_equal(ip,12,V4mappedprefix))

static const char ip4loopback[4] = {127,0,0,1};

#endif

+ 7
- 0
ndelay.h View File

@@ -0,0 +1,7 @@
#ifndef NDELAY_H
#define NDELAY_H

extern int ndelay_on(int);
extern int ndelay_off(int);

#endif

+ 29
- 0
open.h View File

@@ -0,0 +1,29 @@
#ifndef OPEN_H
#define OPEN_H

#include <sys/cdefs.h>

/* open filename for reading and return the file handle or -1 on error */
extern int open_read(const char *filename) __THROW;

/* create filename for exclusive write only use (mode 0600) and return
* the file handle or -1 on error */
extern int open_excl(const char *filename) __THROW;

/* open filename for appending write only use (mode 0600)
* and return the file handle or -1 on error.
* All write operation will append after the last byte, regardless of
* seeking or other processes also appending to the file. The file will
* be created if it does not exist. */
extern int open_append(const char *filename) __THROW;

/* open filename for writing (mode 0644). Create the file if it does
* not exist, truncate it to zero length otherwise. Return the file
* handle or -1 on error. */
extern int open_trunc(const char *filename) __THROW;

/* open filename for writing. Create the file if it does not exist.
* Return the file handle or -1 on error. */
extern int open_write(const char *filename) __THROW;

#endif

+ 18
- 0
open/open_append.3 View File

@@ -0,0 +1,18 @@
.TH open_append 3
.SH NAME
open_append \- open a file for appending
.SH SYNTAX
.B #include <open.h>

extern int \fBopen_append\fP(const char *\fIfilename\fR);
.SH DESCRIPTION
open_append opens the file \fIfilename\fR for appending write-only use
and returns the file handle. If it does not exist, it will be created
with mode 0600. If there was an error opening or creating the file,
open_append returns -1 and sets errno accordingly.

All write operations will append after the last byte, regardless of
previous calls to lseek(2) or other processes also appending to the
same file.
.SH "SEE ALSO"
open(2)

+ 7
- 0
open/open_append.c View File

@@ -0,0 +1,7 @@
#include <unistd.h>
#include <sys/fcntl.h>
#include "open.h"

extern int open_append(const char *filename) {
return open(filename,O_WRONLY|O_NDELAY|O_APPEND|O_CREAT,0600);
}

+ 22
- 0
open/open_excl.3 View File

@@ -0,0 +1,22 @@
.TH open_excl 3
.SH NAME
open_excl \- open a file for exclusive writing
.SH SYNTAX
.B #include <open.h>

extern int \fBopen_excl\fP(const char *\fIfilename\fR);
.SH DESCRIPTION
open_excl opens the file \fIfilename\fR for writing and returns the file
handle. The file may not exist before the call to \fBopen_excl\fR. The
file will be created with mode 0600.

If there was an error creating the file, open_excl returns -1
and sets errno accordingly.

Since open_excl relies on the O_EXCL flag to open, it does not work
reliably over NFS (the NFS protocol is broken) and must be emulated
using a lock file (create a file with a unique file name and link(2) it
to the lock file. Then stat the lock file and see if the link count is
2).
.SH "SEE ALSO"
open(2)

+ 7
- 0
open/open_excl.c View File

@@ -0,0 +1,7 @@
#include <unistd.h>
#include <sys/fcntl.h>
#include "open.h"

extern int open_excl(const char *filename) {
return open(filename,O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT|O_EXCL,0600);
}

+ 13
- 0
open/open_read.3 View File

@@ -0,0 +1,13 @@
.TH open_read 3
.SH NAME
open_read \- open a file for reading
.SH SYNTAX
.B #include <open.h>

extern int \fBopen_read\fP(const char *\fIfilename\fR);
.SH DESCRIPTION
open_read opens the file \fIfilename\fR for reading and returns the file
handle. If there was an error opening the file, open_read returns -1
and sets errno accordingly.
.SH "SEE ALSO"
open(2)

+ 7
- 0
open/open_read.c View File

@@ -0,0 +1,7 @@
#include <unistd.h>
#include <sys/fcntl.h>
#include "open.h"

extern int open_read(const char *filename) {
return open(filename,O_RDONLY|O_NDELAY);
}

+ 15
- 0
open/open_trunc.3 View File

@@ -0,0 +1,15 @@
.TH open_trunc 3
.SH NAME
open_trunc \- open a file for writing
.SH SYNTAX
.B #include <open.h>

extern int \fBopen_trunc\fP(const char *\fIfilename\fR);
.SH DESCRIPTION
open_trunc opens the file \fIfilename\fR for write-only use
and returns the file handle. If the file exists, it will be truncated
to zero bytes length. If it does not exist, it will be created
with mode 0644. If there was an error opening or creating the file,
open_trunc returns -1 and sets errno accordingly.
.SH "SEE ALSO"
open(2)

+ 7
- 0
open/open_trunc.c View File

@@ -0,0 +1,7 @@
#include <unistd.h>
#include <sys/fcntl.h>
#include "open.h"

extern int open_trunc(const char *filename) {
return open(filename,O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT,0644);
}

+ 14
- 0
open/open_write.3 View File

@@ -0,0 +1,14 @@
.TH open_write 3
.SH NAME
open_write \- open a file for writing
.SH SYNTAX
.B #include <open.h>

extern int \fBopen_write\fP(const char *\fIfilename\fR);
.SH DESCRIPTION
open_write opens the file \fIfilename\fR for write-only use and returns
the file handle. If the file does not exist, it will be created with
mode 0644. If there was an error opening or creating the file,
open_write returns -1 and sets errno accordingly.
.SH "SEE ALSO"
open(2)

+ 7
- 0
open/open_write.c View File

@@ -0,0 +1,7 @@
#include <unistd.h>
#include <sys/fcntl.h>
#include "open.h"

extern int open_write(const char *filename) {
return open(filename,O_WRONLY|O_NDELAY);
}

+ 61
- 0
scan.h View File

@@ -0,0 +1,61 @@
#ifndef SCAN_H
#define SCAN_H

#include <sys/cdefs.h>
#ifndef __pure__
#define __pure__
#endif
#ifndef __THROW
#define __THROW
#endif

/* interpret src as ASCII decimal number, write number to dest and
* return the number of bytes that were parsed */
extern unsigned int scan_ulong(const char *src,unsigned long *dest) __THROW;

/* interpret src as ASCII hexadecimal number, write number to dest and
* return the number of bytes that were parsed */
extern unsigned int scan_xlong(const char *src,unsigned long *dest) __THROW;

/* interpret src as ASCII octal number, write number to dest and
* return the number of bytes that were parsed */
extern unsigned int scan_8long(const char *src,unsigned long *dest) __THROW;

/* interpret src as signed ASCII decimal number, write number to dest
* and return the number of bytes that were parsed */
extern unsigned int scan_long(const char *src,signed long *dest) __THROW;

extern unsigned int scan_uint(const char *src,unsigned int *dest) __THROW;
extern unsigned int scan_xint(const char *src,unsigned int *dest) __THROW;
extern unsigned int scan_8int(const char *src,unsigned int *dest) __THROW;
extern unsigned int scan_int(const char *src,signed int *dest) __THROW;

extern unsigned int scan_ushort(const char *src,unsigned short *dest) __THROW;
extern unsigned int scan_xshort(const char *src,unsigned short *dest) __THROW;
extern unsigned int scan_8short(const char *src,unsigned short *dest) __THROW;
extern unsigned int scan_short(const char *src,signed short *dest) __THROW;

/* interpret src as double precision floating point number,
* write number to dest and return the number of bytes that were parsed */
extern unsigned int scan_double(const char *in, double *dest) __THROW;

/* if *src=='-', set *dest to -1 and return 1.
* if *src=='+', set *dest to 1 and return 1.
* otherwise set *dest to 1 return 0. */
extern unsigned int scan_plusminus(const char *src,signed int *dest) __THROW;

/* return the highest integer n<=limit so that isspace(in[i]) for all 0<=i<=n */
extern unsigned int scan_whitenskip(const char *in,unsigned int limit) __THROW __pure__;

/* return the highest integer n<=limit so that !isspace(in[i]) for all 0<=i<=n */
extern unsigned int scan_nonwhitenskip(const char *in,unsigned int limit) __THROW __pure__;

/* return the highest integer n<=limit so that in[i] is element of
* charset (ASCIIZ string) for all 0<=i<=n */
extern unsigned int scan_charsetnskip(const char *in,const char *charset,unsigned int limit) __THROW __pure__;

/* return the highest integer n<=limit so that in[i] is not element of
* charset (ASCIIZ string) for all 0<=i<=n */
extern unsigned int scan_noncharsetnskip(const char *in,const char *charset,unsigned int limit) __THROW __pure__;

#endif

+ 8
- 0
scan/scan_8int.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_8int(const char* src,unsigned int* dest) {
unsigned long l;
register int len=scan_8long(src,&l);
*dest=l;
return len;
}

+ 13
- 0
scan/scan_8long.3 View File

@@ -0,0 +1,13 @@
.TH scan_8long 3
.SH NAME
scan_8long \- parse an unsigned long integer in octal ASCII representation
.SH SYNTAX
.B #include <scan.h>

int \fBscan_8long\fP(const char *\fIsrc\fR,unsigned long *\fIdest\fR);
.SH DESCRIPTION
scan_8long parses an unsigned long integer in octal ASCII representation
from \fIsrc\fR and writes the result into \fIdest\fR. It returns the
number of bytes read from \fIsrc\fR.
.SH "SEE ALSO"
scan_xlong(3)

+ 13
- 0
scan/scan_8long.c View File

@@ -0,0 +1,13 @@
#include "scan.h"

unsigned int scan_8long(const char *src,unsigned long *dest) {
register const char *tmp=src;
register int l=0;
register unsigned char c;
while ((c=*tmp-'0')<8) {
l=l*8+c;
++tmp;
}
*dest=l;
return tmp-src;
}

+ 8
- 0
scan/scan_8short.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_8short(const char* src,unsigned short* dest) {
unsigned long l;
register int len=scan_8long(src,&l);
*dest=l;
return len;
}

+ 13
- 0
scan/scan_charsetnskip.3 View File

@@ -0,0 +1,13 @@
.TH scan_charsetnskip 3
.SH NAME
scan_charsetnskip \- skip characters from set
.SH SYNTAX
.B #include <scan.h>

int \fBscan_charsetnskip\fP(const char* \fIsrc\fR, const char* \fIcharset\fR, unsigned int* \fIlimit\fR);
.SH DESCRIPTION
scan_charsetnskip returns the length of the maximum prefix of \fIsrc\fR
that consists solely of characters that occur in \fIcharset\fR (up to
and not including the \\0).
.SH "SEE ALSO"
scan_noncharsetnskip(3)

+ 15
- 0
scan/scan_charsetnskip.c View File

@@ -0,0 +1,15 @@
#include "scan.h"
#include <ctype.h>

unsigned int scan_charsetnskip(const char *s,const char *charset,unsigned int limit) {
register const char *t=s;
register const char *u=t+limit;
register const char* i;
while (t<u) {
for (i=charset; *i; ++i)
if (*i==*t) break;
if (*i!=*t) break;
++t;
}
return t-s;
}

+ 13
- 0
scan/scan_double.3 View File

@@ -0,0 +1,13 @@
.TH scan_double 3
.SH NAME
scan_double \- parse a floating point number in decimal ASCII representation
.SH SYNTAX
.B #include <scan.h>

int \fBscan_double\fP(const char *\fIsrc\fR,double *\fIdest\fR);
.SH DESCRIPTION
scan_double parses a floating point number in decimal ASCII representation
from \fIsrc\fR and writes the result into \fIdest\fR. It returns the
number of bytes read from \fIsrc\fR.
.SH "SEE ALSO"
scan_xlong(3), scan_8long(3), fmt_ulong(3)

+ 51
- 0
scan/scan_double.c View File

@@ -0,0 +1,51 @@
#include "scan.h"

#ifdef __GNUC__
static inline int isdigit(int c) { return (c>='0' && c<='9'); }
#else
#include <ctype.h>
#endif

unsigned int scan_double(const char *in, double *dest) {
double d=0;
register const char *c=in;
char neg=0;
switch (*c) {
case '-': neg=1;
case '+': c++; break;
default: break;
}
while (isdigit(*c)) {
d=d*10+(*c-'0');
++c;
}
if (*c=='.') {
double factor=.1;
while (isdigit(*++c)) {
d=d+(factor*(*c-'0'));
factor/=10;
}
}
if ((*c|32)=='e') {
int exp=0;
char neg=0;
if (c[1]<'0') {
switch (*c) {
case '-': neg=1;
case '+': c++; break;
default:
d=0;
c=in;
goto done;
}
}
while (isdigit(*++c))
exp=exp*10+(*c-'0');
while (exp) { /* XXX: this introduces rounding errors */
d*=10; --exp;
}
}
done:
*dest=d;
return c-in;
}

+ 8
- 0
scan/scan_int.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_int(const char* src,int* dest) {
long l;
register int len=scan_long(src,&l);
*dest=l;
return len;
}

+ 19
- 0
scan/scan_long.c View File

@@ -0,0 +1,19 @@
#include "scan.h"

unsigned int scan_long(const char *src,long *dest) {
register const char *tmp;
register int l;
register unsigned char c;
int neg;
tmp=src; l=0; neg=0;
switch (*tmp) {
case '-': neg=1;
case '+': ++tmp;
}
while ((c=*tmp-'0')<10) {
l=l*10+c;
++tmp;
}
*dest=(neg?-l:l);
return tmp-src;
}

+ 13
- 0
scan/scan_noncharsetnskip.3 View File

@@ -0,0 +1,13 @@
.TH scan_noncharsetnskip 3
.SH NAME
scan_noncharsetnskip \- skip characters not from set
.SH SYNTAX
.B #include <scan.h>

int \fBscan_noncharsetnskip\fP(const char* \fIsrc\fR, const char* \fIcharset\fR, unsigned int* \fIlimit\fR);
.SH DESCRIPTION
scan_noncharsetnskip returns the length of the maximum prefix of \fIsrc\fR
that consists solely of characters that do not occur in \fIcharset\fR
(up to and not including the \\0).
.SH "SEE ALSO"
scan_charsetnskip(3)

+ 15
- 0
scan/scan_noncharsetnskip.c View File

@@ -0,0 +1,15 @@
#include "scan.h"
#include <ctype.h>

unsigned int scan_noncharsetnskip(const char *s,const char *charset,unsigned int limit) {
register const char *t=s;
register const char *u=t+limit;
register const char* i;
while (t<u) {
for (i=charset; *i; ++i)
if (*i==*t) break;
if (*i==*t) break;
++t;
}
return t-s;
}

+ 15
- 0
scan/scan_nonwhitenskip.3 View File

@@ -0,0 +1,15 @@
.TH scan_nonwhitenskip 3
.SH NAME
scan_nonwhitenskip \- skip non-whitespace
.SH SYNTAX
.B #include <scan.h>

int \fBscan_nonwhitenskip\fP(const char *\fIsrc\fR,unsigned int *\fIlimit\fR);
.SH DESCRIPTION
scan_nonwhitenskip returns the length of the maximum prefix of \fIsrc\fR
that consists solely of non-whitespace characters as defined by
\fB!isspace\fR.

Normally, this is everything but ' ', '\\f', '\\n', '\\r', '\\t', '\\v'.
.SH "SEE ALSO"
scan_nonwhitenskip(3)

+ 9
- 0
scan/scan_nonwhitenskip.c View File

@@ -0,0 +1,9 @@
#include "scan.h"
#include <ctype.h>

unsigned int scan_nonwhitenskip(const char *s,unsigned int limit) {
register const char *t=s;
register const char *u=t+limit;
while (t<u && !isspace(*t)) ++t;
return t-s;
}

+ 12
- 0
scan/scan_plusminus.3 View File

@@ -0,0 +1,12 @@
.TH scan_plusminus 3
.SH NAME
scan_plusminus \- parse '+' or '-'
.SH SYNTAX
.B #include <scan.h>

int \fBscan_plusminus\fP(const char *\fIsrc\fR,int *\fIdest\fR);
.SH DESCRIPTION
scan_plusminus parses an ASCII '+' or '-' sign from \fIsrc\fR, sets
\fIdest\fR 1 or -1, respectively, and returns 1.

If neither is found, '+' is assumed and 0 is returned.

+ 10
- 0
scan/scan_plusminus.c View File

@@ -0,0 +1,10 @@
#include "scan.h"

unsigned int scan_plusminus(const char *src,signed int *dest) {
*dest=1;
switch (*src) {
case '-': *dest=-1;
case '+': return 1; break;
}
return 0;
}

+ 8
- 0
scan/scan_short.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_short(const char* src,short* dest) {
long l;
register int len=scan_long(src,&l);
*dest=l;
return len;
}

+ 8
- 0
scan/scan_uint.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_uint(const char* src,unsigned int* dest) {
unsigned long l;
register int len=scan_ulong(src,&l);
*dest=l;
return len;
}

+ 13
- 0
scan/scan_ulong.3 View File

@@ -0,0 +1,13 @@
.TH scan_ulong 3
.SH NAME
scan_ulong \- parse an unsigned long integer in decimal ASCII representation
.SH SYNTAX
.B #include <scan.h>

int \fBscan_ulong\fP(const char *\fIsrc\fR,unsigned long *\fIdest\fR);
.SH DESCRIPTION
scan_ulong parses an unsigned long integer in decimal ASCII representation
from \fIsrc\fR and writes the result into \fIdest\fR. It returns the
number of bytes read from \fIsrc\fR.
.SH "SEE ALSO"
scan_xlong(3), scan_8long(3), fmt_ulong(3)

+ 13
- 0
scan/scan_ulong.c View File

@@ -0,0 +1,13 @@
#include "scan.h"

unsigned int scan_ulong(const char *src,unsigned long *dest) {
register const char *tmp=src;
register int l=0;
register unsigned char c;
while ((c=*tmp-'0')<10) {
l=l*10+c;
++tmp;
}
*dest=l;
return tmp-src;
}

+ 8
- 0
scan/scan_ushort.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_ushort(const char* src,unsigned short* dest) {
unsigned long l;
register int len=scan_ulong(src,&l);
*dest=l;
return len;
}

+ 15
- 0
scan/scan_whitenskip.3 View File

@@ -0,0 +1,15 @@
.TH scan_whitenskip 3
.SH NAME
scan_whitenskip \- skip whitespace
.SH SYNTAX
.B #include <scan.h>

int \fBscan_whitenskip\fP(const char *\fIsrc\fR,unsigned int *\fIlimit\fR);
.SH DESCRIPTION
scan_whitenskip returns the length of the maximum prefix of \fIsrc\fR
that consists solely of whitespace characters as defined by
\fBisspace\fR.

Normally, this is ' ', '\\f', '\\n', '\\r', '\\t', '\\v'.
.SH "SEE ALSO"
scan_nonwhitenskip(3)

+ 9
- 0
scan/scan_whitenskip.c View File

@@ -0,0 +1,9 @@
#include "scan.h"
#include <ctype.h>

unsigned int scan_whitenskip(const char *s,unsigned int limit) {
register const char *t=s;
register const char *u=t+limit;
while (t<u && isspace(*t)) ++t;
return t-s;
}

+ 8
- 0
scan/scan_xint.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_xint(const char* src,unsigned int* dest) {
unsigned long l;
register int len=scan_xlong(src,&l);
*dest=l;
return len;
}

+ 17
- 0
scan/scan_xlong.3 View File

@@ -0,0 +1,17 @@
.TH scan_xlong 3
.SH NAME
scan_xlong \- parse an unsigned long integer in hexadecimal ASCII representation
.SH SYNTAX
.B #include <scan.h>

int \fBscan_xlong\fP(const char *\fIsrc\fR,unsigned long *\fIdest\fR);
.SH DESCRIPTION
scan_xlong parses an unsigned long integer in hexadecimal ASCII
representation from \fIsrc\fR and writes the result into \fIdest\fR. It
returns the number of bytes read from \fIsrc\fR.

scan_xlong understands both upper and lower case letters.

scan_xlong does not expect or understand a "0x" prefix.
.SH "SEE ALSO"
fmt_xlong(3)

+ 23
- 0
scan/scan_xlong.c View File

@@ -0,0 +1,23 @@
#include "scan.h"

static inline int fromhex(unsigned char c) {
if (c>='0' && c<='9')
return c-'0';
else if (c>='A' && c<='F')
return c-'A'+10;
else if (c>='a' && c<='f')
return c-'a'+10;
return -1;
}

unsigned int scan_xlong(const char *src,unsigned long *dest) {
register const char *tmp=src;
register int l=0;
register unsigned char c;
while ((c=fromhex(*tmp))<16) {
l=(l<<4)+c;
++tmp;
}
*dest=l;
return tmp-src;
}

+ 8
- 0
scan/scan_xshort.c View File

@@ -0,0 +1,8 @@
#include "scan.h"

unsigned int scan_xshort(const char* src,unsigned short* dest) {
unsigned long l;
register int len=scan_xlong(src,&l);
*dest=l;
return len;
}

+ 58
- 0
socket.h View File

@@ -0,0 +1,58 @@
#ifndef SOCKET_H
#define SOCKET_H

#include "uint16.h"
#include "uint32.h"

extern int socket_tcp4(void);
extern int socket_udp4(void);
extern int socket_tcp6(void);
extern int socket_udp6(void);

#define socket_tcp() socket_tcp4()
#define socket_udp() socket_udp4()

extern int socket_connect4(int s,const char *ip,uint16);
extern int socket_connect6(int s,const char *ip,uint16,uint32 scope_id);
extern int socket_connected(int s);
extern int socket_bind4(int s,const char *ip,uint16);
extern int socket_bind4_reuse(int s,const char *ip,uint16);
extern int socket_bind6(int s,const char *ip,uint16,uint32 scope_id);
extern int socket_bind6_reuse(int s,const char *ip,uint16,uint32 scope_id);
extern int socket_listen(int s,unsigned int backlog);
extern int socket_accept4(int s,char *ip,uint16 *);
extern int socket_accept6(int s,char *ip,uint16 *,uint32 *scope_id);
extern int socket_recv4(int s,char *buf,unsigned int len,char *ip,uint16 *port);
extern int socket_recv6(int s,char *buf,unsigned int len,char *ip,uint16 *port,uint32 *scope_id);
extern int socket_send4(int s,const char *buf,unsigned int len,const char *ip,uint16 port);
extern int socket_send6(int s,const char *buf,unsigned int len,const char *ip,uint16 port,uint32 scope_id);
extern int socket_local4(int s,char *ip,uint16 *port);
extern int socket_local6(int s,char *ip,uint16 *port,uint32 *scope_id);
extern int socket_remote4(int s,char *ip,uint16 *port);
extern int socket_remote6(int s,char *ip,uint16 *port,uint32 *scope_id);

/* enable sending udp packets to the broadcast address */
extern int socket_broadcast(int s);
/* join a multicast group on the given interface */
extern int socket_mcjoin4(int s,const char *groupip,const char *interface);
extern int socket_mcjoin6(int s,const char *groupip,int);
/* leave a multicast group on the given interface */
extern int socket_mcleave4(int s,const char *groupip);
extern int socket_mcleave6(int s,const char *groupip);
/* set multicast TTL/hop count for outgoing packets */
extern int socket_mcttl4(int s,char hops);
extern int socket_mcttl6(int s,char hops);
/* enable multicast loopback */
extern int socket_mcloop4(int s,char hops);
extern int socket_mcloop6(int s,char hops);

extern void socket_tryreservein(int s,int size);

extern const char* socket_getifname(uint32 interface);
extern uint32 socket_getifidx(const char *ifname);

extern int socket_sendfile(int out,int in,uint32 offset,uint32 bytes);

extern int noipv6;

#endif

+ 17
- 0
socket/socket_connect4.c View File

@@ -0,0 +1,17 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

#include "byte.h"
#include "socket.h"
#include "uint16.h"
#include "uint32.h"

int socket_connect4(int s,const char *ip,uint16 port) {
struct sockaddr_in si;
byte_zero(&si,sizeof(si));
si.sin_family=AF_INET;