1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2018 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32
33 #include "sopt.h"
34
35 #include <cx/hash_map.h>
36
37 void cmd_args_free(CmdArgs *args) {
38 if(args) {
39 cxMapDestroy(args->options);
40 free(args->argv);
41 free(args);
42 }
43 }
44
45 static void cmd_map_put(CxMap *map, const char *key, const void *value) {
46 cxMapPut(map, key, (void*)value);
47 }
48
49 CmdArgs* cmd_parse_args(int argc, char **argv) {
50 CmdArgs *a = malloc(sizeof(CmdArgs));
51 a->options = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
52 a->argv = calloc(argc, sizeof(char*));
53 a->argc = 0;
54
55 const char *NOARG = "";
56
57 char *option = NULL;
58 char optchar = 0;
59 for(int i=0;i<argc;i++) {
60 char *arg = argv[i];
61 size_t len = strlen(arg);
62 if(len > 1 && arg[0] == '-') {
63 for(int c=1;c<len;c++) {
64 switch(arg[c]) {
65 default: {
66 fprintf(stderr, "Unknown option -%c\n\n", arg[c]);
67 cmd_args_free(a);
68 return NULL;
69 }
70 case 'c': {
71 cmd_map_put(a->options, "conflict", NOARG);
72 break;
73 }
74 case 'l': {
75 cmd_map_put(a->options, "lock", NOARG);
76 break;
77 }
78 case 'd': {
79 cmd_map_put(a->options, "nolock", NOARG);
80 break;
81 }
82 case 'r': {
83 cmd_map_put(a->options, "remove", NOARG);
84 break;
85 }
86 case 'v': {
87 cmd_map_put(a->options, "verbose", NOARG);
88 break;
89 }
90 case 's': {
91 option = "syncdir";
92 optchar = 's';
93 break;
94 }
95 case 't': {
96 option = "tags";
97 optchar = 't';
98 break;
99 }
100 case 'V': {
101 option = "version";
102 optchar = 'V';
103 break;
104 }
105 case 'R': {
106 cmd_map_put(a->options, "restore-removed", NOARG);
107 break;
108 }
109 case 'M': {
110 cmd_map_put(a->options, "restore-modified", NOARG);
111 break;
112 }
113 case 'S': {
114 cmd_map_put(a->options, "snapshot", NOARG);
115 }
116 }
117 }
118 } else if(option) {
119 cmd_map_put(a->options, option, arg);
120 option = NULL;
121 } else {
122 a->argv[a->argc++] = arg;
123 }
124 }
125
126 return a;
127 }
128
129 char* cmd_getoption(CmdArgs *arg, const char *name) {
130 return cxMapGet(arg->options, cx_hash_key_str(name));
131 }
132