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/* $Id: err.c,v 1.2 1997/10/26 20:20:19 sandro Exp $ */
/*
* 4.4BSD err(), warn() functions reimplementation.
*/
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "err.h"
/* The name of the running program. */
extern char *__progname;
void
err(int status, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
verr(status, fmt, ap);
va_end(ap);
}
void
verr(int status, const char *fmt, va_list ap)
{
int olderrno = errno;
fprintf(stderr, "%s: ", __progname);
if (fmt != NULL) {
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": ");
}
fprintf(stderr, "%s\n", strerror(olderrno));
exit(status);
}
void
errx(int status, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
verrx(status, fmt, ap);
va_end(ap);
}
void
verrx(int status, const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", __progname);
if (fmt != NULL)
vfprintf(stderr, fmt, ap);
fputc('\n', stderr);
exit(status);
}
void
warn(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarn(fmt, ap);
va_end(ap);
}
void
vwarn(const char *fmt, va_list ap)
{
int olderrno = errno;
fprintf(stderr, "%s: ", __progname);
if (fmt != NULL) {
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": ");
}
fprintf(stderr, "%s\n", strerror(olderrno));
}
void
warnx(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnx(fmt, ap);
va_end(ap);
}
void
vwarnx(const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", __progname);
if (fmt != NULL)
vfprintf(stderr, fmt, ap);
fputc('\n', stderr);
}
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