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10 changed files with 126 additions and 3 deletions
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.TH fmt_httpdate 3 |
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.SH NAME |
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fmt_httpdate \- write a date in ASCII as in the HTTP protocol |
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.SH SYNTAX |
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.B #include <fmt.h> |
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unsigned int \fBfmt_httpdate\fP(char *\fIdest\fR,time_t \fIsource\fR); |
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.SH DESCRIPTION |
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fmt_httpdate writes a date in ASCII representation as the HTTP protocol defines it: |
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"Sun, 06 Nov 1994 08:49:37 GMT". |
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fmt_httpdate does not append \\0. |
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If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_httpdate returns the number |
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of bytes it would have written. |
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The output of fmt_httpdate is 29 until Jan 1st 10000. |
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#include "fmt.h" |
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#include "byte.h" |
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#include <time.h> |
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static unsigned int fmt_2digits(char* dest,int i) { |
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dest[0]=(i/10)+'0'; |
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dest[1]=(i%10)+'0'; |
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return 2; |
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} |
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unsigned int fmt_httpdate(char* dest,time_t t) { |
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static const char days[] = "SunMonTueWedThuFriSat"; |
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static const char months[] = "JanFebMarAprMayJunJulAugSepOctNovDec"; |
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struct tm* x=gmtime(&t); |
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int i; |
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if (dest==0) return 29; |
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/* "Sun, 06 Nov 1994 08:49:37 GMT" */ |
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byte_copy(dest,3,days+3*x->tm_wday); i=3; |
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i+=fmt_str(dest+i,", "); |
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i+=fmt_2digits(dest+i,x->tm_mday); |
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i+=fmt_str(dest+i," "); |
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byte_copy(dest+i,3,months+3*x->tm_mon); i+=3; |
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i+=fmt_str(dest+i," "); |
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i+=fmt_2digits(dest+i,(x->tm_year+1900)/100); |
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i+=fmt_2digits(dest+i,(x->tm_year+1900)%100); |
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i+=fmt_str(dest+i," "); |
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i+=fmt_2digits(dest+i,x->tm_hour); |
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i+=fmt_str(dest+i,":"); |
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i+=fmt_2digits(dest+i,x->tm_min); |
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i+=fmt_str(dest+i,":"); |
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i+=fmt_2digits(dest+i,x->tm_sec); |
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i+=fmt_str(dest+i," GMT"); |
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return i; |
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} |
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.TH fmt_human 3 |
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.SH NAME |
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fmt_human \- write a human readable ASCII representation of a long integer |
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.SH SYNTAX |
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.B #include <fmt.h> |
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unsigned int \fBfmt_human\fP(char *\fIdest\fR,unsigned long long \fIsource\fR); |
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.SH DESCRIPTION |
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fmt_human writes a human readable ASCII representation of \fIsource\fR |
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to \fIdest\fR and returns the number of bytes written. The result |
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resembles the file size output of "ls -H"; 1000 becomes "1.0k", 1000000 |
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becomes "1.0M" and so on for "G" and "T". |
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fmt_human does not append \\0. |
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If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_human returns the number |
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of bytes it would have written. |
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The output of fmt_human can not exceed 11 (assuming unsigned long long |
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has 64 bits). |
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.SH "SEE ALSO" |
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fmt_humank(3), scan_human(3) |
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.TH fmt_humank 3 |
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.SH NAME |
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fmt_humank \- write a human readable ASCII representation of a long integer |
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.SH SYNTAX |
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.B #include <fmt.h> |
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unsigned int \fBfmt_humank\fP(char *\fIdest\fR,unsigned long long \fIsource\fR); |
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.SH DESCRIPTION |
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fmt_humank writes a human readable ASCII representation of \fIsource\fR |
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to \fIdest\fR and returns the number of bytes written. The result |
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resembles the file size output of "ls -h"; 1024 becomes "1.0k", 1048576 |
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becomes "1.0M" and so on for "G" and "T". |
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fmt_humank does not append \\0. |
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If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_humank returns the number |
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of bytes it would have written. |
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The output of fmt_humank can not exceed 11 (assuming unsigned long long |
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has 64 bits). |
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.SH "SEE ALSO" |
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fmt_human(3), scan_humank(3) |
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#include <time.h> |
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#include <buffer.h> |
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main() { |
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char buf[100]; |
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buffer_put(buffer_1,buf,fmt_httpdate(buf,time(0))); |
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buffer_putnlflush(buffer_1); |
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} |
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#include <fmt.h> |
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#include <buffer.h> |
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main() { |
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char buf[1024]; |
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buffer_put(buffer_1,buf,fmt_human(buf,1)); buffer_putnlflush(buffer_1); |
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buffer_put(buffer_1,buf,fmt_human(buf,1400)); buffer_putnlflush(buffer_1); |
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buffer_put(buffer_1,buf,fmt_human(buf,2300000)); buffer_putnlflush(buffer_1); |
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buffer_put(buffer_1,buf,fmt_human(buf,(unsigned long long)(-1ll))); buffer_putnlflush(buffer_1); |
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} |
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