1: /*************************************************************************
2: * (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: parse.c,v 1.1.1.1.2.3 2008/10/13 17:29:18 misho Exp $
7: *
8: *************************************************************************/
9: #include "global.h"
10: #include "aitcfg.h"
11: #include "tools.h"
12:
13:
14: // cfgDbg() Debug/Log operation
15: static inline int cfgDbg(FILE *f, char *fmt, ...)
16: {
17: int ret = 0;
18: va_list lst;
19:
20: va_start(lst, fmt);
21: ret = vfprintf(f, fmt, lst);
22: va_end(lst);
23:
24: return ret;
25: }
26:
27: // -----------------------------------------
28:
29: /*
30: * ReadConfig() Read from file and add new item to config list
31: * @f = file resource
32: * @cfg = Head list element
33: * return: 0 ok; -1 error:: can`t allocate memory
34: */
35: int ReadConfig(FILE *f, sl_config * __restrict cfg)
36: {
37: u_char szLine[MAX_STR + 1];
38: u_char szSection[MAX_STR + 1], *psAttr, *psVal;
39: int pos;
40: struct tagPair *av;
41:
42: memset(szSection, 0, MAX_STR + 1);
43: while (!feof(f)) {
44: memset(szLine, 0, MAX_STR + 1);
45: fgets((char*) szLine, MAX_STR, f);
46: trim(szLine);
47: #ifdef __DEBUG
48: cfgDbg(stdout, "DEBUG:: RAW |%s|\n", szLine);
49: #endif
50:
51: // End of config
52: if (*szLine == '.')
53: break;
54: // Comment
55: if (*szLine == '#' || *szLine == ';' || !*szLine)
56: continue;
57:
58: #ifdef __DEBUG
59: cfgDbg(stdout, "DEBUG:: Clean |%s|\n", szLine);
60: #endif
61:
62: // Section
63: if (*szLine == '[') {
64: pos = strlen((char*) szLine) - 1;
65: if (szLine[pos] != ']') {
66: #ifdef __DEBUG
67: cfgDbg(stdout, "WARNING:: Ignore section %s ... not closed breket\n", szLine);
68: #endif
69: } else {
70: szLine[pos] = 0;
71: strncpy((char*) szSection, (char*) szLine + 1, MAX_STR);
72: #ifdef __DEBUG
73: cfgDbg(stdout, "DEBUG:: Section %s\n", szSection);
74: #endif
75: }
76: continue;
77: }
78:
79: // Devide pairs
80: pos = strchr((char*) szLine, '=') ? strchr((char*) szLine, '=') - (char*) szLine : 0;
81: if (!pos) {
82: #ifdef __DEBUG
83: cfgDbg(stdout, "WARNING:: Ignore a/v %s ... format error!\n", szLine);
84: #endif
85: continue;
86: } else {
87: av = malloc(sizeof(struct tagPair));
88: if (!av) {
89: LOGERR;
90: return -1;
91: } else {
92: // added new element
93: av->sle_next = cfg->slh_first;
94: cfg->slh_first = av;
95: }
96: // added section name to element
97: if (*szSection) {
98: av->psSection = malloc(strlen((char*) szSection) + 1);
99: if (!av->psSection) {
100: LOGERR;
101: free(av);
102: return -1;
103: } else
104: strlcpy((char*) av->psSection, (char*) szSection, strlen((char*) szSection) + 1);
105: } else
106: av->psSection = NULL;
107:
108: psAttr = szLine;
109: psVal = (szLine + pos + 1);
110: szLine[pos] = 0;
111: rtrim(psAttr);
112: ltrim(psVal);
113: #ifdef __DEBUG
114: cfgDbg(stdout, "DEBUG:: Attr(%p) ->%s size=%d Value(%p) ->%s size=%d\n",
115: psAttr, psAttr, strlen((char*) psAttr), psVal, psVal, strlen((char*) psVal));
116: #endif
117: // added attribute to element
118: av->psAttribute = malloc(strlen((char*) psAttr) + 1);
119: if (!av->psAttribute) {
120: LOGERR;
121: free(av->psSection);
122: free(av);
123: return -1;
124: } else
125: strlcpy((char*) av->psAttribute, (char*) psAttr, strlen((char*) psAttr) + 1);
126: // added value to element
127: av->psValue = malloc(strlen((char*) psVal) + 1);
128: if (!av->psValue) {
129: LOGERR;
130: free(av->psAttribute);
131: free(av->psSection);
132: free(av);
133: return -1;
134: } else
135: strlcpy((char*) av->psValue, (char*) psVal, strlen((char*) psVal) + 1);
136: }
137: }
138:
139: return 0;
140: }
141:
142: /*
143: * WriteConfig() Write to file from items in config list
144: * @f = file resource
145: * @cfg = Head list element
146: * return: 0 ok; -1 error:: can`t write to file
147: */
148: int WriteConfig(FILE *f, sl_config * __restrict cfg)
149: {
150: struct tagPair *av;
151: time_t tim;
152: char szTime[MAX_STR + 1];
153: u_char szSection[MAX_STR + 1];
154:
155: bzero(szSection, MAX_STR + 1);
156:
157: bzero(szTime, MAX_STR + 1);
158: time(&tim);
159: strftime(szTime, MAX_STR, "(UTC) %Y-%m-%d %H:%M:%S", gmtime(&tim));
160: if (!cfgDbg(f, "## Write Config :: %s\n#\n", szTime)) {
161: LOGERR;
162: return -1;
163: }
164:
165: for (av = cfg->slh_first; av; av = av->sle_next) {
166: if (av->psSection && strcmp((char*) av->psSection, (char*) szSection)) {
167: strlcpy((char*) szSection, (char*) av->psSection, MAX_STR + 1);
168: if (!cfgDbg(f, "\n[%s]\n", av->psSection)) {
169: LOGERR;
170: return -1;
171: }
172: }
173: if (!av->psSection && *szSection) {
174: bzero(szSection, MAX_STR + 1);
175: if (!cfgDbg(f, "\n[]\n")) {
176: LOGERR;
177: return -1;
178: }
179: }
180:
181: if (!cfgDbg(f, "%s = %s\n", av->psAttribute, av->psValue)) {
182: LOGERR;
183: return -1;
184: }
185: }
186:
187: bzero(szTime, MAX_STR + 1);
188: time(&tim);
189: strftime(szTime, MAX_STR, "(UTC) %Y-%m-%d %H:%M:%S", gmtime(&tim));
190: if (!cfgDbg(f, "\n#\n## Done. :: %s\n", szTime)) {
191: LOGERR;
192: return -1;
193: }
194:
195: return 0;
196: }
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