Andrew's git - gitweb.git/blob - get-tar-commit-id.c

   1#include <stdio.h>
   2#include <string.h>
   3#include <unistd.h>
   4
   5#define HEADERSIZE      1024
   6
   7int main(int argc, char **argv)
   8{
   9        char buffer[HEADERSIZE];
  10        ssize_t n;
  11
  12        n = read(0, buffer, HEADERSIZE);
  13        if (n < HEADERSIZE) {
  14                fprintf(stderr, "read error\n");
  15                return 3;
  16        }
  17        if (buffer[156] != 'g')
  18                return 1;
  19        if (memcmp(&buffer[512], "52 comment=", 11))
  20                return 1;
  21        n = write(1, &buffer[523], 41);
  22        if (n < 41) {
  23                fprintf(stderr, "write error\n");
  24                return 2;
  25        }
  26        return 0;
  27}