28 lines
472 B
C
28 lines
472 B
C
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#define HEADERSIZE 1024
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
char buffer[HEADERSIZE];
|
||
|
|
ssize_t n;
|
||
|
|
|
||
|
|
n = read(0, buffer, HEADERSIZE);
|
||
|
|
if (n < HEADERSIZE) {
|
||
|
|
fprintf(stderr, "read error\n");
|
||
|
|
return 3;
|
||
|
|
}
|
||
|
|
if (buffer[156] != 'g')
|
||
|
|
return 1;
|
||
|
|
if (memcmp(&buffer[512], "52 comment=", 11))
|
||
|
|
return 1;
|
||
|
|
n = write(1, &buffer[523], 41);
|
||
|
|
if (n < 41) {
|
||
|
|
fprintf(stderr, "write error\n");
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|