misc.c revision 1.9
1 /* $NetBSD: misc.c,v 1.9 2006/06/18 05:16:41 gdamore Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Diomidis Spinellis of Imperial College, University of London. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 /*- 36 * Copyright (c) 1992 Diomidis Spinellis. 37 * 38 * This code is derived from software contributed to Berkeley by 39 * Diomidis Spinellis of Imperial College, University of London. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the University of 52 * California, Berkeley and its contributors. 53 * 4. Neither the name of the University nor the names of its contributors 54 * may be used to endorse or promote products derived from this software 55 * without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 */ 69 70 #if HAVE_NBTOOL_CONFIG_H 71 #include "nbtool_config.h" 72 #endif 73 74 #include <sys/cdefs.h> 75 #ifndef lint 76 #if 0 77 static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93"; 78 #else 79 __RCSID("$NetBSD: misc.c,v 1.9 2006/06/18 05:16:41 gdamore Exp $"); 80 #endif 81 #endif /* not lint */ 82 83 #include <sys/types.h> 84 85 #include <errno.h> 86 #include <regex.h> 87 #include <stdarg.h> 88 #include <stdio.h> 89 #include <stdlib.h> 90 #include <string.h> 91 92 #include "defs.h" 93 #include "extern.h" 94 95 /* 96 * malloc with result test 97 */ 98 void * 99 xmalloc(u_int size) 100 { 101 void *p; 102 103 if ((p = malloc(size)) == NULL) 104 err(FATAL, "%s", strerror(errno)); 105 return (p); 106 } 107 108 /* 109 * realloc with result test 110 */ 111 void * 112 xrealloc(void *p, u_int size) 113 { 114 if (p == NULL) /* Compatibility hack. */ 115 return (xmalloc(size)); 116 117 if ((p = realloc(p, size)) == NULL) 118 err(FATAL, "%s", strerror(errno)); 119 return (p); 120 } 121 122 /* 123 * Return a string for a regular expression error passed. This is a overkill, 124 * because of the silly semantics of regerror (we can never know the size of 125 * the buffer). 126 */ 127 char * 128 strregerror(int errcode, regex_t *preg) 129 { 130 static char *oe; 131 size_t s; 132 133 if (oe != NULL) 134 free(oe); 135 s = regerror(errcode, preg, "", 0); 136 oe = xmalloc(s); 137 (void)regerror(errcode, preg, oe, s); 138 return (oe); 139 } 140 141 /* 142 * Error reporting function 143 */ 144 void 145 err(int severity, const char *fmt, ...) 146 { 147 va_list ap; 148 149 va_start(ap, fmt); 150 (void)fprintf(stderr, "sed: "); 151 switch (severity) { 152 case WARNING: 153 case COMPILE: 154 (void)fprintf(stderr, "%lu: %s: ", linenum, fname); 155 } 156 (void)vfprintf(stderr, fmt, ap); 157 va_end(ap); 158 (void)fprintf(stderr, "\n"); 159 if (severity == WARNING) 160 return; 161 exit(1); 162 /* NOTREACHED */ 163 } 164
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