Annotation of src/usr.bin/sed/misc.c, Revision 1.4
1.4 ! millert 1: /* $OpenBSD: misc.c,v 1.3 1997/07/25 21:05:41 mickey 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.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the University of
22: * California, Berkeley and its contributors.
23: * 4. Neither the name of the University nor the names of its contributors
24: * may be used to endorse or promote products derived from this software
25: * without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: */
39:
40: #ifndef lint
41: /* from: static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93"; */
1.4 ! millert 42: static char *rcsid = "$OpenBSD: misc.c,v 1.3 1997/07/25 21:05:41 mickey Exp $";
1.1 deraadt 43: #endif /* not lint */
44:
45: #include <sys/types.h>
46:
47: #include <errno.h>
48: #include <regex.h>
49: #include <stdio.h>
50: #include <stdlib.h>
51: #include <string.h>
1.4 ! millert 52: #include <stdarg.h>
1.1 deraadt 53:
54: #include "defs.h"
55: #include "extern.h"
56:
57: /*
58: * malloc with result test
59: */
60: void *
61: xmalloc(size)
62: u_int size;
63: {
64: void *p;
65:
66: if ((p = malloc(size)) == NULL)
67: err(FATAL, "%s", strerror(errno));
68: return (p);
69: }
70:
71: /*
72: * realloc with result test
73: */
74: void *
75: xrealloc(p, size)
76: void *p;
77: u_int size;
78: {
79: if (p == NULL) /* Compatibility hack. */
80: return (xmalloc(size));
81:
82: if ((p = realloc(p, size)) == NULL)
83: err(FATAL, "%s", strerror(errno));
84: return (p);
85: }
86:
87: /*
88: * Return a string for a regular expression error passed. This is a overkill,
89: * because of the silly semantics of regerror (we can never know the size of
90: * the buffer).
91: */
92: char *
93: strregerror(errcode, preg)
94: int errcode;
95: regex_t *preg;
96: {
97: static char *oe;
98: size_t s;
99:
100: if (oe != NULL)
101: free(oe);
102: s = regerror(errcode, preg, "", 0);
103: oe = xmalloc(s);
104: (void)regerror(errcode, preg, oe, s);
105: return (oe);
106: }
107:
108: /*
109: * Error reporting function
110: */
111: void
112: err(int severity, const char *fmt, ...)
113: {
114: va_list ap;
1.4 ! millert 115:
1.1 deraadt 116: va_start(ap, fmt);
117: (void)fprintf(stderr, "sed: ");
118: switch (severity) {
119: case WARNING:
120: case COMPILE:
121: (void)fprintf(stderr, "%lu: %s: ", linenum, fname);
122: }
123: (void)vfprintf(stderr, fmt, ap);
124: va_end(ap);
125: (void)fprintf(stderr, "\n");
126: if (severity == WARNING)
127: return;
128: exit(1);
129: /* NOTREACHED */
130: }