Function fd_read_lines

reftable/stack.c:68–109

}

static int fd_read_lines(int fd, char ***namesp)
{
	char *buf = NULL;
	int err = 0;
	off_t size;

	size = lseek(fd, 0, SEEK_END);
	if (size < 0) {
		err = REFTABLE_IO_ERROR;
		goto done;
	}

	err = lseek(fd, 0, SEEK_SET);
	if (err < 0) {
		err = REFTABLE_IO_ERROR;
		goto done;
	}

	REFTABLE_ALLOC_ARRAY(buf, size + 1);
	if (!buf) {
		err = REFTABLE_OUT_OF_MEMORY_ERROR;
		goto done;
	}

	for (off_t total_read = 0; total_read < size; ) {
		ssize_t bytes_read = read(fd, buf + total_read, size - total_read);
		if (bytes_read < 0 && (errno == EAGAIN || errno == EINTR))
			continue;
		if (bytes_read < 0 || !bytes_read) {
			err = REFTABLE_IO_ERROR;
			goto done;
		}

		total_read += bytes_read;
	}
	buf[size] = 0;

	err = parse_names(buf, size, namesp);
done:
	reftable_free(buf);
	return err;
}

int read_lines(const char *filename, char ***namesp)
{