Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include <unistd.h>
#include "textcode.h"
#include "str.h"
#include "buffer.h"
#include "open.h"
int main(int argc,char* argv[]) {
char buf[4096];
char obuf[4096];
buffer filein;
buffer fileout;
int fd=0;
int ofd=-1;
int found=0;
char line[1000]; /* uuencoded lines can never be longer than 64 characters */
int l;
enum { BEFOREBEGIN, AFTERBEGIN, SKIPHEADER } state=BEFOREBEGIN;
unsigned long mode=0,lineno=0;
if (argc>1) {
fd=open_read(argv[1]);
if (fd<0) {
buffer_puts(buffer_2,"error: could not open \"");
buffer_puts(buffer_2,argv[1]);
buffer_putsflush(buffer_2,"\"\n");
return 1;
}
}
buffer_init(&filein,read,fd,buf,sizeof buf);
again:
/* skip to "^begin " */
for (;;) {
if ((l=buffer_getline(&filein,line,(sizeof line)-1))==0 && line[l]!='\n') {
if (state!=BEFOREBEGIN) {
buffer_puts(buffer_1,"premature end of file in line ");
buffer_putulong(buffer_1,lineno);
buffer_putsflush(buffer_1,"!\n");
if (ofd>=0) {
buffer_flush(&fileout);
fchmod(ofd,mode);
close(ofd);
}
++found;
}
if (!found)
buffer_putsflush(buffer_2,"warning: hit end of file without finding any uuencoded data!\n");
return 0;
}
++lineno;
if (l>0 && line[l-1]=='\r') --l; /* kill DOS line endings */
line[l]=0;
if (str_start(line,"begin ")) {
if (state!=BEFOREBEGIN) {
buffer_puts(buffer_1,"new begin without previous end in line ");
buffer_putulong(buffer_1,lineno);
buffer_putsflush(buffer_1,"!\n");
if (ofd>=0) {
buffer_flush(&fileout);
fchmod(ofd,mode);
close(ofd);
}
++found;
}
state=BEFOREBEGIN;
if (line[l=6+scan_8long(line+6,&mode)]==' ' && mode) {
int i;
++l;
if (line[l]=='"') {
int m;
++l;
line[str_chr(line+l,'"')]=0;
}
if (line[l+(i=str_rchr(line+l,'/'))]) l+=i+1;
while (line[l]=='.') ++l;
if (line[l]) {
ofd=open_excl(line+l);
if (ofd<0) {
buffer_puts(buffer_2,"error: could not create file \"");
buffer_puts(buffer_2,line+l);
buffer_putsflush(buffer_2,"\" (must not exist yet)\n");
} else {
buffer_puts(buffer_2,"decoding file \"");
buffer_puts(buffer_2,line+l);
buffer_putsflush(buffer_2,"\"\n");
state=AFTERBEGIN;
buffer_init(&fileout,write,ofd,obuf,sizeof obuf);
continue;
}
}
}
} else if (str_equal(line,"end")) {
if (ofd>=0) {
buffer_flush(&fileout);
fchmod(ofd,mode);
close(ofd);
ofd=-1;
}
++found;
state=BEFOREBEGIN;
continue;
} else if (!line[0]) {
if (state==AFTERBEGIN)
state=SKIPHEADER;
} else {
unsigned int scanned,x;
char tmp[100];
x=scan_uuencoded(line,tmp,&scanned);
if (!x) {
if (state==AFTERBEGIN) {
buffer_puts(buffer_1,"parse error in line ");
buffer_putulong(buffer_1,lineno);
buffer_puts(buffer_1,": \"");
buffer_puts(buffer_1,line);
buffer_putsflush(buffer_1,"\"\n");
return 1;
}
} else {
if (ofd>=0)
buffer_put(&fileout,tmp,scanned);
}
}
}
}