-/*
- * reads from fd as long as possible into a supplied buffer of size bytes.
- * If necessary the buffer's size is increased using realloc()
- *
- * returns 0 if anything went fine and -1 otherwise
- *
- * NOTE: both buf and size may change, but even when -1 is returned
- * you still have to free() it yourself.
- */
-int read_pipe(int fd, char** return_buf, unsigned long* return_size)
-{
- char* buf = *return_buf;
- unsigned long size = *return_size;
- ssize_t iret;
- unsigned long off = 0;
-
- do {
- iret = xread(fd, buf + off, size - off);
- if (iret > 0) {
- off += iret;
- if (off == size) {
- size *= 2;
- buf = xrealloc(buf, size);
- }
- }
- } while (iret > 0);
-
- *return_buf = buf;
- *return_size = off;
-
- if (iret < 0)
- return -1;
- return 0;
-}
-