|
0
|
1 /* |
|
|
2 * util.c -- miscellaneous utilities |
|
|
3 * |
|
|
4 * Copyright (c) 2021 David Demelier <markand@malikania.fr> |
|
|
5 * |
|
|
6 * Permission to use, copy, modify, and/or distribute this software for any |
|
|
7 * purpose with or without fee is hereby granted, provided that the above |
|
|
8 * copyright notice and this permission notice appear in all copies. |
|
|
9 * |
|
|
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|
|
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|
|
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|
|
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|
|
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|
|
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|
|
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|
|
17 */ |
|
|
18 |
|
|
19 #include <assert.h> |
|
|
20 #include <err.h> |
|
|
21 #include <libgen.h> |
|
|
22 #include <limits.h> |
|
|
23 #include <stdarg.h> |
|
|
24 #include <stdio.h> |
|
|
25 #include <stdlib.h> |
|
|
26 #include <string.h> |
|
|
27 |
|
|
28 #include "util.h" |
|
|
29 |
|
|
30 void * |
|
|
31 util_malloc(size_t size) |
|
|
32 { |
|
|
33 void *ret; |
|
|
34 |
|
|
35 if (!(ret = malloc(size))) |
|
|
36 err(1, "malloc"); |
|
|
37 |
|
|
38 return ret; |
|
|
39 } |
|
|
40 |
|
|
41 void * |
|
|
42 util_calloc(size_t n, size_t size) |
|
|
43 { |
|
|
44 void *ret; |
|
|
45 |
|
|
46 if (!(ret = calloc(n, size))) |
|
|
47 err(1, "calloc"); |
|
|
48 |
|
|
49 return ret; |
|
|
50 } |
|
|
51 |
|
|
52 void * |
|
|
53 util_realloc(void *ptr, size_t size) |
|
|
54 { |
|
|
55 void *ret; |
|
|
56 |
|
|
57 if (!(ret = realloc(ptr, size)) && size) |
|
|
58 err(1, "realloc"); |
|
|
59 |
|
|
60 return ret; |
|
|
61 } |
|
|
62 |
|
|
63 void * |
|
|
64 util_memdup(const void *ptr, size_t size) |
|
|
65 { |
|
|
66 void *ret; |
|
|
67 |
|
|
68 if (!(ret = malloc(size))) |
|
|
69 err(1, "malloc"); |
|
|
70 |
|
|
71 return memcpy(ret, ptr, size); |
|
|
72 } |
|
|
73 |
|
|
74 char * |
|
|
75 util_strdup(const char *src) |
|
|
76 { |
|
|
77 char *ret; |
|
|
78 |
|
|
79 if (!(ret = strdup(src))) |
|
|
80 err(1, "strdup"); |
|
|
81 |
|
|
82 return ret; |
|
|
83 } |
|
|
84 |
|
|
85 char * |
|
|
86 util_strndup(const char *src, size_t n) |
|
|
87 { |
|
|
88 assert(src); |
|
|
89 |
|
|
90 char *ret; |
|
|
91 |
|
|
92 if (!(ret = strndup(src, n))) |
|
|
93 err(1, "strndup"); |
|
|
94 |
|
|
95 return ret; |
|
|
96 } |
|
|
97 |
|
|
98 char * |
|
|
99 util_basename(const char *str) |
|
|
100 { |
|
|
101 static char ret[PATH_MAX]; |
|
|
102 char tmp[PATH_MAX]; |
|
|
103 |
|
|
104 strlcpy(tmp, str, sizeof (tmp)); |
|
|
105 strlcpy(ret, basename(tmp), sizeof (ret)); |
|
|
106 |
|
|
107 return ret; |
|
|
108 } |
|
|
109 |
|
|
110 char * |
|
|
111 util_dirname(const char *str) |
|
|
112 { |
|
|
113 static char ret[PATH_MAX]; |
|
|
114 char tmp[PATH_MAX]; |
|
|
115 |
|
|
116 strlcpy(tmp, str, sizeof (tmp)); |
|
|
117 strlcpy(ret, dirname(tmp), sizeof (ret)); |
|
|
118 |
|
|
119 return ret; |
|
|
120 } |
|
|
121 |
|
|
122 size_t |
|
|
123 util_split(char *line, const char **args, size_t max, char delim) |
|
|
124 { |
|
|
125 size_t idx; |
|
|
126 |
|
|
127 if (!*line) |
|
|
128 return 0; |
|
|
129 |
|
|
130 for (idx = 0; idx < max; ++idx) { |
|
|
131 char *sp = strchr(line, delim); |
|
|
132 |
|
|
133 if (!sp || idx + 1 >= max) { |
|
|
134 args[idx++] = line; |
|
|
135 break; |
|
|
136 } |
|
|
137 |
|
|
138 *sp = '\0'; |
|
|
139 args[idx] = line; |
|
|
140 line = sp + 1; |
|
|
141 } |
|
|
142 |
|
|
143 return idx; |
|
|
144 } |
|
|
145 |
|
|
146 char * |
|
|
147 util_printf(char *buf, size_t bufsz, const char *fmt, ...) |
|
|
148 { |
|
|
149 assert(buf); |
|
|
150 assert(bufsz); |
|
|
151 assert(fmt); |
|
|
152 |
|
|
153 va_list ap; |
|
|
154 |
|
|
155 va_start(ap, fmt); |
|
|
156 vsnprintf(buf, bufsz, fmt, ap); |
|
|
157 va_end(ap); |
|
|
158 |
|
|
159 return buf; |
|
|
160 } |
