readclose.c

   1 #include <unistd.h>
   2 #include "error.h"
   3 #include "readclose.h"
   4
   5 int readclose_append(int fd,stralloc *sa,unsigned int bufsize)
   6 {
   7   int r;
   8   for (;;) {
   9     if (!stralloc_readyplus(sa,bufsize)) { close(fd); return -1; }
  10     r = read(fd,sa->s + sa->len,bufsize);
  11     if (r == -1) if (errno == error_intr) continue;
  12     if (r <= 0) { close(fd); return r; }
  13     sa->len += r;
  14   }
  15 }
  16
  17 int readclose(int fd,stralloc *sa,unsigned int bufsize)
  18 {
  19   if (!stralloc_copys(sa,"")) { close(fd); return -1; }
  20   return readclose_append(fd,sa,bufsize);
  21 }