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56 lines (47 loc) · 854 Bytes
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fatal.c
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56 lines (47 loc) · 854 Bytes
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#
/*
* FATAL.C -- Re-implementation of err(3).
*/
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "fatal.h"
extern char **__argv;
void
fatal(int status, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfatal(status, fmt, ap);
va_end(ap);
}
void
vfatal(int status, const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", __argv[0]);
if (fmt != NULL) {
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": ");
}
fprintf(stderr, "%s\n", strerror(errno));
exit(status);
}
void
fatalx(int status, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfatalx(status, fmt, ap);
va_end(ap);
}
void
vfatalx(int status, const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", __argv[0]);
if (fmt != NULL)
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
exit(status);
}