2 * Copyright (c) 2005 Darren Tucker
3 * Copyright (c) 2005 Damien Miller
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <sys/types.h>
26 static int failed = 0;
31 fprintf(stderr, "snprintftest: %s\n", m);
35 int x_snprintf(char *str, size_t count, const char *fmt, ...)
41 ret = vsnprintf(str, count, fmt, ap);
52 snprintf(b,5,"123456789");
54 fail("snprintf does not correctly terminate long strings");
56 /* check for read overrun on unterminated string */
57 if ((src = malloc(BUFSZ)) == NULL) {
58 fail("malloc failed");
60 memset(src, 'a', BUFSZ);
61 snprintf(b, sizeof(b), "%.*s", 1, src);
62 if (strcmp(b, "a") != 0)
63 fail("failed with length limit '%%.s'");
66 /* check that snprintf and vsnprintf return sane values */
67 if (snprintf(b, 1, "%s %d", "hello", 12345) != 11)
68 fail("snprintf does not return required length");
69 if (x_snprintf(b, 1, "%s %d", "hello", 12345) != 11)
70 fail("vsnprintf does not return required length");