1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1998 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #include <sys/param.h>
28 #include <libintl.h>
29 #include <string.h>
30 #include <stdlib.h>
31 #include <stdarg.h>
32 #include <stdio.h>
33 #include <errno.h>
34
35 #include "utils.h"
36
37 static const char PNAME_FMT[] = "%s: ";
38 static const char ERRNO_FMT[] = ": %s\n";
39
40 static const char *pname;
41
42 /*PRINTFLIKE1*/
43 void
warn(const char * format,...)44 warn(const char *format, ...)
45 {
46 int err = errno;
47 va_list alist;
48
49 if (pname != NULL)
50 (void) fprintf(stderr, gettext(PNAME_FMT), pname);
51
52 va_start(alist, format);
53 (void) vfprintf(stderr, format, alist);
54 va_end(alist);
55
56 if (strchr(format, '\n') == NULL)
57 (void) fprintf(stderr, gettext(ERRNO_FMT), strerror(err));
58 }
59
60 /*PRINTFLIKE1*/
61 void
die(const char * format,...)62 die(const char *format, ...)
63 {
64 int err = errno;
65 va_list alist;
66
67 if (pname != NULL)
68 (void) fprintf(stderr, gettext(PNAME_FMT), pname);
69
70 va_start(alist, format);
71 (void) vfprintf(stderr, format, alist);
72 va_end(alist);
73
74 if (strchr(format, '\n') == NULL)
75 (void) fprintf(stderr, gettext(ERRNO_FMT), strerror(err));
76
77 exit(E_ERROR);
78 }
79
80 const char *
getpname(const char * arg0)81 getpname(const char *arg0)
82 {
83 const char *p = strrchr(arg0, '/');
84
85 if (p == NULL)
86 p = arg0;
87 else
88 p++;
89
90 pname = p;
91 return (p);
92 }
93
94 int
valid_abspath(const char * p)95 valid_abspath(const char *p)
96 {
97 if (p[0] != '/') {
98 warn(gettext("pathname is not an absolute path -- %s\n"), p);
99 return (0);
100 }
101
102 if (strlen(p) > MAXPATHLEN) {
103 warn(gettext("pathname is too long -- %s\n"), p);
104 return (0);
105 }
106
107 return (1);
108 }
109
110 int
valid_str2int(const char * p,int * ip)111 valid_str2int(const char *p, int *ip)
112 {
113 int i;
114 char *q;
115
116 errno = 0;
117 i = (int)strtol(p, &q, 10);
118
119 if (errno != 0 || q == p || i < 0 || (*q != '\0' && *q != '\n'))
120 return (0);
121
122 *ip = i;
123 return (1);
124 }
125
126 int
valid_str2ull(const char * p,unsigned long long * ullp)127 valid_str2ull(const char *p, unsigned long long *ullp)
128 {
129 long long ll;
130 char *q;
131
132 errno = 0;
133 ll = strtoll(p, &q, 10);
134
135 if (errno != 0 || q == p || ll < 0LL || (*q != '\0' && *q != '\n'))
136 return (0);
137
138 *ullp = (unsigned long long)ll;
139 return (1);
140 }
141