rpush.c

   1 #include "cache.h"
   2 #include "rsh.h"
   3 #include <sys/socket.h>
   4 #include <errno.h>
   5
   6 void service(int fd_in, int fd_out) {
   7         ssize_t size;
   8         int posn;
   9         char sha1[20];
  10         unsigned long objsize;
  11         void *buf;
  12         do {
  13                 posn = 0;
  14                 do {
  15                         size = read(fd_in, sha1 + posn, 20 - posn);
  16                         if (size < 0) {
  17                                 perror("rpush: read ");
  18                                 return;
  19                         }
  20                         if (!size)
  21                                 return;
  22                         posn += size;
  23                 } while (posn < 20);
  24
  25                 /* fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1)); */
  26
  27                 buf = map_sha1_file(sha1, &objsize);
  28                 if (!buf) {
  29                         fprintf(stderr, "rpush: could not find %s\n",
  30                                 sha1_to_hex(sha1));
  31                         return;
  32                 }
  33                 posn = 0;
  34                 do {
  35                         size = write(fd_out, buf + posn, objsize - posn);
  36                         if (size <= 0) {
  37                                 if (!size) {
  38                                         fprintf(stderr, "rpush: write closed");
  39                                 } else {
  40                                         perror("rpush: write ");
  41                                 }
  42                                 return;
  43                         }
  44                         posn += size;
  45                 } while (posn < objsize);
  46         } while (1);
  47 }
  48
  49 int main(int argc, char **argv)
  50 {
  51         int arg = 1;
  52         char *commit_id;
  53         char *url;
  54         int fd_in, fd_out;
  55         while (arg < argc && argv[arg][0] == '-') {
  56                 arg++;
  57         }
  58         if (argc < arg + 2) {
  59                 usage("rpush [-c] [-t] [-a] commit-id url");
  60                 return 1;
  61         }
  62         commit_id = argv[arg];
  63         url = argv[arg + 1];
  64         if (setup_connection(&fd_in, &fd_out, "git-rpull", url, arg, argv + 1))
  65                 return 1;
  66
  67         service(fd_in, fd_out);
  68         return 0;
  69 }