/textproc/nbsed/files/misc.c
C | 179 lines | 84 code | 14 blank | 81 comment | 11 complexity | 0976cc5d9aa3cd87641278c74a5ef66e MD5 | raw file
- /* $NetBSD: misc.c,v 1.8 2003/08/07 11:15:50 agc Exp $ */
- /*-
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Diomidis Spinellis of Imperial College, University of London.
- *
- * 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. 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.
- */
- /*-
- * Copyright (c) 1992 Diomidis Spinellis.
- *
- * This code is derived from software contributed to Berkeley by
- * Diomidis Spinellis of Imperial College, University of London.
- *
- * 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.
- */
- #if HAVE_CONFIG_H
- #include "config.h"
- #endif
- #include <nbcompat.h>
- #if HAVE_SYS_CDEFS_H
- #include <sys/cdefs.h>
- #endif
- #ifndef lint
- #if 0
- static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93";
- #else
- __RCSID("$NetBSD: misc.c,v 1.8 2003/08/07 11:15:50 agc Exp $");
- #endif
- #endif /* not lint */
- #if HAVE_SYS_TYPES_H
- #include <sys/types.h>
- #endif
- #if HAVE_ERRNO_H
- #include <errno.h>
- #endif
- #if HAVE_REGEX_H
- #include <regex.h>
- #endif
- #if HAVE_STDARG_H
- #include <stdarg.h>
- #endif
- #if HAVE_STDIO_H
- #include <stdio.h>
- #endif
- #if HAVE_STDLIB_H
- #include <stdlib.h>
- #endif
- #if HAVE_STRING_H
- #include <string.h>
- #endif
- #include "defs.h"
- #include "extern.h"
- /*
- * malloc with result test
- */
- void *
- xmalloc(u_int size)
- {
- void *p;
- if ((p = malloc(size)) == NULL)
- err(FATAL, "%s", strerror(errno));
- return (p);
- }
- /*
- * realloc with result test
- */
- void *
- xrealloc(void *p, u_int size)
- {
- if (p == NULL) /* Compatibility hack. */
- return (xmalloc(size));
- if ((p = realloc(p, size)) == NULL)
- err(FATAL, "%s", strerror(errno));
- return (p);
- }
- /*
- * Return a string for a regular expression error passed. This is a overkill,
- * because of the silly semantics of regerror (we can never know the size of
- * the buffer).
- */
- char *
- strregerror(int errcode, regex_t *preg)
- {
- static char *oe;
- size_t s;
- if (oe != NULL)
- free(oe);
- s = regerror(errcode, preg, "", 0);
- oe = xmalloc(s);
- (void)regerror(errcode, preg, oe, s);
- return (oe);
- }
- /*
- * Error reporting function
- */
- void
- err(int severity, const char *fmt, ...)
- {
- va_list ap;
- va_start(ap, fmt);
- (void)fprintf(stderr, "sed: ");
- switch (severity) {
- case WARNING:
- case COMPILE:
- (void)fprintf(stderr, "%lu: %s: ", linenum, fname);
- }
- (void)vfprintf(stderr, fmt, ap);
- va_end(ap);
- (void)fprintf(stderr, "\n");
- if (severity == WARNING)
- return;
- exit(1);
- /* NOTREACHED */
- }