diff options
Diffstat (limited to 'system/lib/libc/gen/vwarn.c')
| -rw-r--r-- | system/lib/libc/gen/vwarn.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/system/lib/libc/gen/vwarn.c b/system/lib/libc/gen/vwarn.c new file mode 100644 index 00000000..37acef35 --- /dev/null +++ b/system/lib/libc/gen/vwarn.c @@ -0,0 +1,55 @@ +/* $OpenBSD: vwarn.c,v 1.9 2012/12/05 23:20:00 deraadt Exp $ */ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <string.h> +#include <stdarg.h> + +extern char *__progname; /* Program name, from crt0. */ + +void +_vwarn(const char *fmt, va_list ap) +{ + int sverrno; + + sverrno = errno; + (void)fprintf(stderr, "%s: ", __progname); + if (fmt != NULL) { + (void)vfprintf(stderr, fmt, ap); + (void)fprintf(stderr, ": "); + } + (void)fprintf(stderr, "%s\n", strerror(sverrno)); +} + +void +vwarn(const char *fmt, va_list ap) __attribute__((weak, alias("_vwarn"))); + |