Annotation of src/usr.bin/sed/misc.c, Revision 1.8
1.8 ! millert 1: /* $OpenBSD: misc.c,v 1.7 2006/10/09 00:23:57 tedu Exp $ */
1.2 deraadt 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1992 Diomidis Spinellis.
5: * Copyright (c) 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Diomidis Spinellis of Imperial College, University of London.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
1.5 millert 19: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
36: #ifndef lint
37: /* from: static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93"; */
1.8 ! millert 38: static const char rcsid[] = "$OpenBSD: misc.c,v 1.7 2006/10/09 00:23:57 tedu Exp $";
1.1 deraadt 39: #endif /* not lint */
40:
41: #include <sys/types.h>
42:
43: #include <errno.h>
44: #include <regex.h>
45: #include <stdio.h>
46: #include <stdlib.h>
47: #include <string.h>
1.4 millert 48: #include <stdarg.h>
1.1 deraadt 49:
50: #include "defs.h"
51: #include "extern.h"
52:
53: /*
54: * malloc with result test
55: */
56: void *
1.8 ! millert 57: xmalloc(size_t size)
1.1 deraadt 58: {
59: void *p;
60:
61: if ((p = malloc(size)) == NULL)
62: err(FATAL, "%s", strerror(errno));
63: return (p);
64: }
65:
66: /*
67: * realloc with result test
68: */
69: void *
1.8 ! millert 70: xrealloc(void *p, size_t size)
1.1 deraadt 71: {
72:
73: if ((p = realloc(p, size)) == NULL)
74: err(FATAL, "%s", strerror(errno));
75: return (p);
76: }
77:
78: /*
79: * Return a string for a regular expression error passed. This is a overkill,
80: * because of the silly semantics of regerror (we can never know the size of
81: * the buffer).
82: */
83: char *
1.6 deraadt 84: strregerror(int errcode, regex_t *preg)
1.1 deraadt 85: {
86: static char *oe;
87: size_t s;
88:
1.7 tedu 89: free(oe);
1.1 deraadt 90: s = regerror(errcode, preg, "", 0);
91: oe = xmalloc(s);
92: (void)regerror(errcode, preg, oe, s);
93: return (oe);
94: }
95:
96: /*
97: * Error reporting function
98: */
99: void
100: err(int severity, const char *fmt, ...)
101: {
102: va_list ap;
1.4 millert 103:
1.1 deraadt 104: va_start(ap, fmt);
105: (void)fprintf(stderr, "sed: ");
106: switch (severity) {
107: case WARNING:
108: case COMPILE:
109: (void)fprintf(stderr, "%lu: %s: ", linenum, fname);
110: }
111: (void)vfprintf(stderr, fmt, ap);
112: va_end(ap);
113: (void)fprintf(stderr, "\n");
114: if (severity == WARNING)
115: return;
116: exit(1);
117: /* NOTREACHED */
118: }