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fe011935 QY |
1 | /* |
2 | * FRR string processing utilities. | |
3 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
4 | * Quentin Young | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the Free | |
8 | * Software Foundation; either version 2 of the License, or (at your option) | |
9 | * any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <string.h> | |
22 | #include <ctype.h> | |
23 | #include <sys/types.h> | |
24 | #include <regex.h> | |
25 | ||
26 | #include "frrstr.h" | |
27 | #include "memory.h" | |
28 | #include "vector.h" | |
29 | ||
30 | void frrstr_split(const char *string, const char *delimiter, char ***result, | |
31 | int *argc) | |
32 | { | |
33 | if (!string) | |
34 | return; | |
35 | ||
36 | unsigned int sz = 4, idx = 0; | |
37 | char *copy, *copystart; | |
38 | *result = XCALLOC(MTYPE_TMP, sizeof(char *) * sz); | |
39 | copystart = copy = XSTRDUP(MTYPE_TMP, string); | |
40 | *argc = 0; | |
41 | ||
42 | const char *tok = NULL; | |
0a334343 | 43 | |
fe011935 QY |
44 | while (copy) { |
45 | tok = strsep(©, delimiter); | |
46 | (*result)[idx] = XSTRDUP(MTYPE_TMP, tok); | |
47 | if (++idx == sz) | |
48 | *result = XREALLOC(MTYPE_TMP, *result, | |
49 | (sz *= 2) * sizeof(char *)); | |
50 | (*argc)++; | |
51 | } | |
52 | ||
53 | XFREE(MTYPE_TMP, copystart); | |
fe011935 QY |
54 | } |
55 | ||
56 | vector frrstr_split_vec(const char *string, const char *delimiter) | |
57 | { | |
58 | char **result; | |
59 | int argc; | |
60 | ||
5d806ec6 QY |
61 | if (!string) |
62 | return NULL; | |
63 | ||
fe011935 QY |
64 | frrstr_split(string, delimiter, &result, &argc); |
65 | ||
66 | vector v = array_to_vector((void **)result, argc); | |
0a334343 | 67 | |
fe011935 | 68 | XFREE(MTYPE_TMP, result); |
0a334343 | 69 | |
fe011935 QY |
70 | return v; |
71 | } | |
72 | ||
73 | char *frrstr_join(const char **parts, int argc, const char *join) | |
74 | { | |
75 | int i; | |
76 | char *str; | |
77 | char *p; | |
78 | size_t len = 0; | |
79 | size_t joinlen = join ? strlen(join) : 0; | |
80 | ||
2c2d5cb3 | 81 | if (!argc) |
82 | return NULL; | |
83 | ||
fe011935 QY |
84 | for (i = 0; i < argc; i++) |
85 | len += strlen(parts[i]); | |
86 | len += argc * joinlen + 1; | |
87 | ||
88 | if (!len) | |
89 | return NULL; | |
90 | ||
91 | p = str = XMALLOC(MTYPE_TMP, len); | |
92 | ||
93 | for (i = 0; i < argc; i++) { | |
94 | size_t arglen = strlen(parts[i]); | |
0a334343 | 95 | |
fe011935 QY |
96 | memcpy(p, parts[i], arglen); |
97 | p += arglen; | |
5d806ec6 | 98 | if (i + 1 != argc && join) { |
fe011935 QY |
99 | memcpy(p, join, joinlen); |
100 | p += joinlen; | |
101 | } | |
102 | } | |
103 | ||
104 | *p = '\0'; | |
105 | ||
106 | return str; | |
107 | } | |
108 | ||
109 | char *frrstr_join_vec(vector v, const char *join) | |
110 | { | |
111 | char **argv; | |
112 | int argc; | |
113 | ||
114 | vector_to_array(v, (void ***)&argv, &argc); | |
115 | ||
116 | char *ret = frrstr_join((const char **)argv, argc, join); | |
117 | ||
118 | XFREE(MTYPE_TMP, argv); | |
119 | ||
120 | return ret; | |
121 | } | |
122 | ||
123 | void frrstr_filter_vec(vector v, regex_t *filter) | |
124 | { | |
125 | regmatch_t ignored[1]; | |
0a334343 | 126 | |
fe011935 QY |
127 | for (unsigned int i = 0; i < vector_active(v); i++) { |
128 | if (regexec(filter, vector_slot(v, i), 0, ignored, 0)) { | |
129 | XFREE(MTYPE_TMP, vector_slot(v, i)); | |
130 | vector_unset(v, i); | |
131 | } | |
132 | } | |
133 | } | |
134 | ||
135 | void frrstr_strvec_free(vector v) | |
136 | { | |
137 | unsigned int i; | |
138 | char *cp; | |
139 | ||
140 | if (!v) | |
141 | return; | |
142 | ||
143 | for (i = 0; i < vector_active(v); i++) { | |
144 | cp = vector_slot(v, i); | |
145 | XFREE(MTYPE_TMP, cp); | |
146 | } | |
147 | ||
148 | vector_free(v); | |
149 | } | |
150 | ||
2cddf2ff QY |
151 | bool begins_with(const char *str, const char *prefix) |
152 | { | |
153 | if (!str || !prefix) | |
154 | return 0; | |
0a334343 | 155 | |
2cddf2ff QY |
156 | size_t lenstr = strlen(str); |
157 | size_t lenprefix = strlen(prefix); | |
0a334343 | 158 | |
2cddf2ff QY |
159 | if (lenprefix > lenstr) |
160 | return 0; | |
0a334343 | 161 | |
2cddf2ff QY |
162 | return strncmp(str, prefix, lenprefix) == 0; |
163 | } | |
5d5ba018 | 164 | |
165 | int all_digit(const char *str) | |
166 | { | |
167 | for (; *str != '\0'; str++) | |
168 | if (!isdigit((int)*str)) | |
169 | return 0; | |
170 | return 1; | |
171 | } |