| #include <err.h> |
| #include <stdio.h> |
| #include <stdarg.h> |
| #include <stdlib.h> |
| |
| extern char *__progname; |
| |
| void vwarn(const char *fmt, va_list ap) |
| { |
| fprintf (stderr, "%s: ", __progname); |
| if (fmt) { |
| vfprintf(stderr, fmt, ap); |
| fputs (": ", stderr); |
| } |
| perror(0); |
| } |
| |
| void vwarnx(const char *fmt, va_list ap) |
| { |
| fprintf (stderr, "%s: ", __progname); |
| if (fmt) vfprintf(stderr, fmt, ap); |
| putc('\n', stderr); |
| } |
| |
| _Noreturn void verr(int status, const char *fmt, va_list ap) |
| { |
| vwarn(fmt, ap); |
| exit(status); |
| } |
| |
| _Noreturn void verrx(int status, const char *fmt, va_list ap) |
| { |
| vwarnx(fmt, ap); |
| exit(status); |
| } |
| |
| void warn(const char *fmt, ...) |
| { |
| va_list ap; |
| va_start(ap, fmt); |
| vwarn(fmt, ap); |
| va_end(ap); |
| } |
| |
| void warnx(const char *fmt, ...) |
| { |
| va_list ap; |
| va_start(ap, fmt); |
| vwarnx(fmt, ap); |
| va_end(ap); |
| } |
| |
| _Noreturn void err(int status, const char *fmt, ...) |
| { |
| va_list ap; |
| va_start(ap, fmt); |
| verr(status, fmt, ap); |
| va_end(ap); |
| } |
| |
| _Noreturn void errx(int status, const char *fmt, ...) |
| { |
| va_list ap; |
| va_start(ap, fmt); |
| verrx(status, fmt, ap); |
| va_end(ap); |
| } |