1 /* $NetBSD: misc.c,v 1.8 2003/08/07 11:15:50 agc 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 #include <sys/cdefs.h> 71 #ifndef lint 72 #if 0 73 static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93"; 74 #else 75 __RCSID("$NetBSD: misc.c,v 1.8 2003/08/07 11:15:50 agc Exp $"); 76 #endif 77 #endif /* not lint */ 78 79 #include <sys/types.h> 80 81 #include <errno.h> 82 #include <regex.h> 83 #include <stdarg.h> 84 #include <stdio.h> 85 #include <stdlib.h> 86 #include <string.h> 87 88 #include "defs.h" 89 #include "extern.h" 90 91 /* 92 * malloc with result test 93 */ 94 void * 95 xmalloc(u_int size) 96 { 97 void *p; 98 99 if ((p = malloc(size)) == NULL) 100 err(FATAL, "%s", strerror(errno)); 101 return (p); 102 } 103 104 /* 105 * realloc with result test 106 */ 107 void * 108 xrealloc(void *p, u_int size) 109 { 110 if (p == NULL) /* Compatibility hack. */ 111 return (xmalloc(size)); 112 113 if ((p = realloc(p, size)) == NULL) 114 err(FATAL, "%s", strerror(errno)); 115 return (p); 116 } 117 118 /* 119 * Return a string for a regular expression error passed. This is a overkill, 120 * because of the silly semantics of regerror (we can never know the size of 121 * the buffer). 122 */ 123 char * 124 strregerror(int errcode, regex_t *preg) 125 { 126 static char *oe; 127 size_t s; 128 129 if (oe != NULL) 130 free(oe); 131 s = regerror(errcode, preg, "", 0); 132 oe = xmalloc(s); 133 (void)regerror(errcode, preg, oe, s); 134 return (oe); 135 } 136 137 /* 138 * Error reporting function 139 */ 140 void 141 err(int severity, const char *fmt, ...) 142 { 143 va_list ap; 144 145 va_start(ap, fmt); 146 (void)fprintf(stderr, "sed: "); 147 switch (severity) { 148 case WARNING: 149 case COMPILE: 150 (void)fprintf(stderr, "%lu: %s: ", linenum, fname); 151 } 152 (void)vfprintf(stderr, fmt, ap); 153 va_end(ap); 154 (void)fprintf(stderr, "\n"); 155 if (severity == WARNING) 156 return; 157 exit(1); 158 /* NOTREACHED */ 159 } 160