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Diffstat (limited to 'include/errs.h')
| -rw-r--r-- | include/errs.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/include/errs.h b/include/errs.h new file mode 100644 index 000000000..bc0f69448 --- /dev/null +++ b/include/errs.h @@ -0,0 +1,125 @@ +#ifndef _ERR_H_ +#define _ERR_H_ + +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> + + +#ifdef HAVE___PROGNAME +extern char *__progname; /* Program name, from crt0. */ +#else +char *__progname = "foo"; /* probably libc4 */ +#endif + +/* Some compilers complain "null format string" upon err(1,NULL) */ +/* Make them happy with a separate routine. */ +static inline void err_nomsg(int exitval) { + (void)fprintf(stderr, "%s: %s\n", __progname, strerror(errno)); + exit(exitval); +} + +static inline void verr(int exitval, const char *fmt, va_list ap) { + int sverrno; + + sverrno = errno; + (void)fprintf(stderr, "%s: ", __progname); + if (fmt != NULL && *fmt != 0) { + (void)vfprintf(stderr, fmt, ap); + (void)fprintf(stderr, ": "); + } + (void)fprintf(stderr, "%s\n", strerror(sverrno)); + exit(exitval); +} + +static inline void err(int exitval, const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + verr(exitval, fmt, ap); + va_end(ap); +} + +static inline void verrx(int exitval, const char *fmt, va_list ap) { + (void)fprintf(stderr, "%s: ", __progname); + if (fmt != NULL) + (void)vfprintf(stderr, fmt, ap); + (void)fprintf(stderr, "\n"); + exit(exitval); +} + +static inline void errx(int exitval, const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + verrx(exitval, fmt, ap); + va_end(ap); +} + +static inline void vwarn(const char *fmt, va_list ap) { + int sverrno; + + sverrno = errno; + (void)fprintf(stderr, "%s: ", __progname); + if (fmt != NULL) { + (void)vfprintf(stderr, fmt, ap); + (void)fprintf(stderr, ": "); + } + (void)fprintf(stderr, "%s\n", strerror(sverrno)); +} + +static inline void warn(const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + vwarn(fmt, ap); + va_end(ap); +} + +static inline void vwarnx(const char *fmt, va_list ap) { + (void)fprintf(stderr, "%s: ", __progname); + if (fmt != NULL) + (void)vfprintf(stderr, fmt, ap); + (void)fprintf(stderr, "\n"); +} + +static inline void warnx(const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + vwarnx(fmt, ap); + va_end(ap); +} + +#endif /* !_ERR_H_ */ |