slurpclose.c

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#include <unistd.h>
#include "stralloc.h"
#include "readclose.h"
#include "error.h"
 
int readclose(int fd,stralloc *sa,int bufsize)
{
  int r;
  for (;;) {
    if (!stralloc_readyplus(sa,bufsize)) { close(fd); return -1; }
    r = read(fd,sa->s + sa->len,bufsize);
    if (r == -1) if (errno == EINTR) continue;
    if (r <= 0) { close(fd); return r; }
    sa->len += r;
  }
}