diff options
Diffstat (limited to 'rbutil/jztool/src/paramlist.c')
-rw-r--r-- | rbutil/jztool/src/paramlist.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/rbutil/jztool/src/paramlist.c b/rbutil/jztool/src/paramlist.c new file mode 100644 index 0000000000..05bcf97a13 --- /dev/null +++ b/rbutil/jztool/src/paramlist.c | |||
@@ -0,0 +1,135 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2021 Aidan MacDonald | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | |||
22 | #include "jztool.h" | ||
23 | #include <stdlib.h> | ||
24 | #include <string.h> | ||
25 | #include <stdbool.h> | ||
26 | |||
27 | struct jz_paramlist { | ||
28 | int size; | ||
29 | char** keys; | ||
30 | char** values; | ||
31 | }; | ||
32 | |||
33 | static int jz_paramlist_extend(jz_paramlist* pl, int count) | ||
34 | { | ||
35 | int nsize = pl->size + count; | ||
36 | |||
37 | /* Reallocate key list */ | ||
38 | char** nkeys = realloc(pl->keys, nsize * sizeof(char*)); | ||
39 | if(!nkeys) | ||
40 | return JZ_ERR_OUT_OF_MEMORY; | ||
41 | |||
42 | for(int i = pl->size; i < nsize; ++i) | ||
43 | nkeys[i] = NULL; | ||
44 | |||
45 | pl->keys = nkeys; | ||
46 | |||
47 | /* Reallocate value list */ | ||
48 | char** nvalues = realloc(pl->values, nsize * sizeof(char*)); | ||
49 | if(!nvalues) | ||
50 | return JZ_ERR_OUT_OF_MEMORY; | ||
51 | |||
52 | for(int i = pl->size; i < nsize; ++i) | ||
53 | nvalues[i] = NULL; | ||
54 | |||
55 | pl->values = nvalues; | ||
56 | |||
57 | pl->size = nsize; | ||
58 | return JZ_SUCCESS; | ||
59 | } | ||
60 | |||
61 | jz_paramlist* jz_paramlist_new(void) | ||
62 | { | ||
63 | jz_paramlist* pl = malloc(sizeof(struct jz_paramlist)); | ||
64 | if(!pl) | ||
65 | return NULL; | ||
66 | |||
67 | pl->size = 0; | ||
68 | pl->keys = NULL; | ||
69 | pl->values = NULL; | ||
70 | return pl; | ||
71 | } | ||
72 | |||
73 | void jz_paramlist_free(jz_paramlist* pl) | ||
74 | { | ||
75 | for(int i = 0; i < pl->size; ++i) { | ||
76 | free(pl->keys[i]); | ||
77 | free(pl->values[i]); | ||
78 | } | ||
79 | |||
80 | if(pl->size > 0) { | ||
81 | free(pl->keys); | ||
82 | free(pl->values); | ||
83 | } | ||
84 | |||
85 | free(pl); | ||
86 | } | ||
87 | |||
88 | int jz_paramlist_set(jz_paramlist* pl, const char* param, const char* value) | ||
89 | { | ||
90 | int pos = -1; | ||
91 | for(int i = 0; i < pl->size; ++i) { | ||
92 | if(!pl->keys[i] || !strcmp(pl->keys[i], param)) { | ||
93 | pos = i; | ||
94 | break; | ||
95 | } | ||
96 | } | ||
97 | |||
98 | if(pos == -1) { | ||
99 | pos = pl->size; | ||
100 | int rc = jz_paramlist_extend(pl, 1); | ||
101 | if(rc < 0) | ||
102 | return rc; | ||
103 | } | ||
104 | |||
105 | bool need_key = (pl->keys[pos] == NULL); | ||
106 | if(need_key) { | ||
107 | char* newparam = strdup(param); | ||
108 | if(!newparam) | ||
109 | return JZ_ERR_OUT_OF_MEMORY; | ||
110 | |||
111 | pl->keys[pos] = newparam; | ||
112 | } | ||
113 | |||
114 | char* newvalue = strdup(value); | ||
115 | if(!newvalue) { | ||
116 | if(need_key) { | ||
117 | free(pl->keys[pos]); | ||
118 | pl->keys[pos] = NULL; | ||
119 | } | ||
120 | |||
121 | return JZ_ERR_OUT_OF_MEMORY; | ||
122 | } | ||
123 | |||
124 | pl->values[pos] = newvalue; | ||
125 | return JZ_SUCCESS; | ||
126 | } | ||
127 | |||
128 | const char* jz_paramlist_get(jz_paramlist* pl, const char* param) | ||
129 | { | ||
130 | for(int i = 0; i < pl->size; ++i) | ||
131 | if(pl->keys[i] && !strcmp(pl->keys[i], param)) | ||
132 | return pl->values[i]; | ||
133 | |||
134 | return NULL; | ||
135 | } | ||