main shrub/shrubtools / shared / readclose.c
 1/* Public domain. */
 2
 3#include <unistd.h>
 4#include "error.h"
 5#include "readclose.h"
 6
 7int readclose_append(int fd,stralloc *sa,unsigned int bufsize)
 8{
 9  int r;
10  for (;;) {
11    if (!stralloc_readyplus(sa,bufsize)) { close(fd); return -1; }
12    r = read(fd,sa->s + sa->len,bufsize);
13    if (r == -1) if (errno == error_intr) continue;
14    if (r <= 0) { close(fd); return r; }
15    sa->len += r;
16  }
17}
18
19int readclose(int fd,stralloc *sa,unsigned int bufsize)
20{
21  if (!stralloc_copys(sa,"")) { close(fd); return -1; }
22  return readclose_append(fd,sa,bufsize);
23}