master xplshn/aruu / shared / libutil / fconcat.c
 1/* See LICENSE file for copyright and license details. */
 2#include <stdio.h>
 3
 4#include "../text.h"
 5#include "../util.h"
 6
 7void
 8fconcat(FILE *fp1, const char *s1, FILE *fp2, const char *s2)
 9{
10	char buf[BUFSIZ];
11	size_t n;
12
13	while ((n = fread(buf, 1, sizeof(buf), fp1)) > 0) {
14		if (fwrite(buf, 1, n, fp2) != n)
15			eprintf("%s: write error:", s2);
16		if (feof(fp1))
17			break;
18	}
19	if (ferror(fp1))
20		eprintf("%s: read error:", s1);
21}