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/* util.c - util functions */
/* Copyright (C) 2007 Keith Rarick and Philotic Inc.
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
char *progname; /* defined as extern in util.h */
void
v()
{
}
static void
vwarnx(const char *err, const char *fmt, va_list args)
{
fprintf(stderr, "%s: ", progname);
if (fmt) {
vfprintf(stderr, fmt, args);
if (err) fprintf(stderr, ": %s", strerror(errno));
}
fputc('\n', stderr);
}
void
warn(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vwarnx(strerror(errno), fmt, args);
va_end(args);
}
void
warnx(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vwarnx(NULL, fmt, args);
va_end(args);
}
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