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#include "err.h"
#if !HAVE_ERR_H
#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
static const char *progname = "unknown program";
void err_set_progname(const char *name)
{
progname = name;
}
void NORETURN err(int eval, const char *fmt, ...)
{
int err_errno = errno;
va_list ap;
fprintf(stderr, "%s: ", progname);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, ": %s\n", strerror(err_errno));
exit(eval);
}
void NORETURN errx(int eval, const char *fmt, ...)
{
va_list ap;
fprintf(stderr, "%s: ", progname);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(eval);
}
void warn(const char *fmt, ...)
{
int err_errno = errno;
va_list ap;
fprintf(stderr, "%s: ", progname);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, ": %s\n", strerror(err_errno));
}
void warnx(const char *fmt, ...)
{
va_list ap;
fprintf(stderr, "%s: ", progname);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
}
#endif
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