Annotation of libaitcfg/src/parse.c, revision 1.11.4.1
1.2 misho 1: /*************************************************************************
2: * (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
1.11.4.1! misho 6: * $Id: parse.c,v 1.11 2012/09/19 15:22:32 misho Exp $
1.2 misho 7: *
1.6 misho 8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
1.11.4.1! misho 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
1.6 misho 16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
1.1 misho 46: #include "global.h"
47:
48:
1.7 misho 49: static inline void
50: _invertQueue(cfg_root_t * __restrict cfg)
1.3 misho 51: {
1.7 misho 52: struct tagCfg *item, *next, *prev = NULL;
1.3 misho 53:
1.7 misho 54: SLIST_FOREACH_SAFE(item, cfg, cfg_next, next) {
55: item->cfg_next.sle_next = prev;
1.3 misho 56: prev = item;
57: }
58: cfg->slh_first = prev;
59: }
60:
1.7 misho 61:
62: /*
63: * cfgReadConfig() - Read file and add new item at config root
64: *
65: * @f = File resource
66: * @cfg = Config root
67: * return: -1 error or 0 ok
68: */
1.9 misho 69: int
70: cfgReadConfig(FILE *f, cfg_root_t * __restrict cfg)
1.3 misho 71: {
1.7 misho 72: char line[BUFSIZ];
73: struct tagCfg *av = NULL;
74: int flg = 0;
75: char *psAttr, *psVal, szSection[STRSIZ] = { 0 };
1.3 misho 76:
1.11 misho 77: if (!f || !cfg) {
78: cfg_SetErr(EINVAL, "Invalid parameter(s)");
79: return -1;
80: }
81:
1.7 misho 82: while (!feof(f)) {
83: memset(line, 0, sizeof line);
84: fgets(line, sizeof line - 1, f);
85: #ifdef SUPPORT_USER_EOF
86: /* check for user end-of-file */
87: if (line[0] == '.' && line[1] == '\n')
88: break;
89: #endif
90: if (!(psAttr = strpbrk(line, "\r\n"))) {
91: /* skip line, too long */
92: continue;
93: } else {
94: *psAttr = 0;
1.11.4.1! misho 95: str_Trim(line);
1.7 misho 96: }
1.3 misho 97:
1.7 misho 98: if (flg) {
99: /* continues line */
100: if (!av)
101: continue;
102: else
103: psAttr = line + strlen(line) - 1;
104: if (*psAttr == '\\')
105: *psAttr = 0;
106: else
107: flg = 0;
108: /* concat line to value */
109: AIT_SET_STRCAT(&av->cfg_val, line);
1.10 misho 110: if (!flg && AIT_ADDR(&av->cfg_val))
1.11.4.1! misho 111: str_Unquot((char*) AIT_GET_STR(&av->cfg_val));
1.7 misho 112: continue;
113: }
1.3 misho 114:
1.7 misho 115: /* *NEW PAIR* alloc new pair element */
1.11.4.1! misho 116: av = e_malloc(sizeof(struct tagCfg));
1.7 misho 117: if (!av) {
1.11.4.1! misho 118: cfg_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
1.7 misho 119: return -1;
120: } else {
121: memset(av, 0, sizeof(struct tagCfg));
122: CFG_RC_LOCK(cfg);
123: SLIST_INSERT_HEAD(cfg, av, cfg_next);
124: CFG_RC_UNLOCK(cfg);
1.3 misho 125: }
1.7 misho 126:
127: /* check for continues line */
1.8 misho 128: psAttr = line + (*line ? strlen(line) : 1) - 1;
1.7 misho 129: if (*psAttr == '\\') {
130: *psAttr = 0;
131: flg = 1;
1.3 misho 132: }
133:
1.7 misho 134: /* check for comment or empty line */
135: if (!*line || *line == '#' || *line == ';') {
136: AIT_SET_STR(&av->cfg_val, line);
137: continue;
138: }
139: /* section */
140: if (*line == '[') {
141: AIT_SET_STR(&av->cfg_val, line);
142: psAttr = line + strlen(line) - 1;
143: if (*psAttr == ']') {
144: *psAttr = 0;
145: flg = 0;
146: strlcpy(szSection, line + 1, sizeof szSection);
147: } else
1.11.4.1! misho 148: EDEBUG(7, "Ignore section '%s' ... not found ']'", line);
1.7 misho 149: continue;
150: }
151: /* parse pair */
152: if (!(psAttr = strchr(line, '='))) {
153: AIT_SET_STR(&av->cfg_val, line);
1.11.4.1! misho 154: EDEBUG(7, "Ignore a/v '%s' ... not found '='", line);
1.7 misho 155: continue;
1.3 misho 156: } else {
1.7 misho 157: *psAttr = 0;
158: psVal = psAttr + 1;
159: psAttr = line;
160: }
161:
162: /* if exists, added section name to element */
163: if (*szSection) {
164: AIT_SET_STR(&av->cfg_sec, szSection);
165: AIT_KEY(&av->cfg_sec) = crcFletcher16(AIT_GET_LIKE(&av->cfg_sec, u_short*),
1.11.4.1! misho 166: E_ALIGN(AIT_LEN(&av->cfg_sec) - 1, 2) / 2);
1.3 misho 167: }
168:
1.11.4.1! misho 169: str_RTrim(psAttr);
! 170: str_LTrim(psVal);
1.7 misho 171: if (!flg)
1.11.4.1! misho 172: str_Unquot(psVal);
1.7 misho 173: AIT_SET_STR(&av->cfg_val, psVal);
174: AIT_SET_STR(&av->cfg_attr, psAttr);
175: AIT_KEY(&av->cfg_attr) = crcFletcher16(AIT_GET_LIKE(&av->cfg_attr, u_short*),
1.11.4.1! misho 176: E_ALIGN(AIT_LEN(&av->cfg_attr) - 1, 2) / 2);
1.7 misho 177:
178: CFG_RC_LOCK(cfg);
179: RB_INSERT(tagRC, cfg, av);
180: CFG_RC_UNLOCK(cfg);
1.3 misho 181: }
182:
183: return 0;
184: }
185:
1.1 misho 186: /*
1.7 misho 187: * cfgWriteConfig() - Write config from memory
188: *
189: * @f = File handle
190: * @cfg = Config root
191: * @whitespace = Additional whitespace characters to file
192: * return: -1 error or 0 ok
193: */
194: int
195: cfgWriteConfig(FILE *f, cfg_root_t * __restrict cfg, int whitespace)
1.1 misho 196: {
1.7 misho 197: struct tagCfg *av;
198: time_t tim;
199: char line[BUFSIZ] = { 0 }, szSection[STRSIZ] = { 0 };
1.1 misho 200:
1.11 misho 201: if (!f || !cfg) {
202: cfg_SetErr(EINVAL, "Invalid parameter(s)");
203: return -1;
204: }
205:
1.7 misho 206: CFG_RC_LOCK(cfg);
207: _invertQueue(cfg);
208: SLIST_FOREACH(av, cfg, cfg_next) {
209: /* add +1 line for section [] */
1.10 misho 210: if (!AIT_ISEMPTY(&av->cfg_sec) && AIT_ADDR(&av->cfg_sec) &&
1.7 misho 211: strcmp(AIT_GET_STR(&av->cfg_sec), szSection)) {
212: strlcpy(szSection, AIT_GET_STR(&av->cfg_sec), sizeof szSection);
213: if (!cfg_Write(f, "\n[%s]\n", AIT_GET_STR(&av->cfg_sec))) {
214: LOGERR;
215: CFG_RC_UNLOCK(cfg);
216: return -1;
1.1 misho 217: }
218: }
1.7 misho 219: if (AIT_ISEMPTY(&av->cfg_sec) && *szSection) {
220: memset(szSection, 0, sizeof szSection);
221: if (!cfg_Write(f, "\n[]\n")) {
1.1 misho 222: LOGERR;
1.7 misho 223: CFG_RC_UNLOCK(cfg);
1.1 misho 224: return -1;
225: }
1.7 misho 226: }
227:
228: /* build line */
229: memset(line, 0, sizeof line);
1.11 misho 230: if (!AIT_ISEMPTY(&av->cfg_attr) && AIT_TYPE(&av->cfg_attr) == string) {
231: strlcpy(line, AIT_GET_STRZ(&av->cfg_attr), sizeof line);
1.7 misho 232: if (whitespace)
233: strlcat(line, " = ", sizeof line);
234: else
235: strlcat(line, "=", sizeof line);
236: }
1.11 misho 237: if (!AIT_ISEMPTY(&av->cfg_val) && AIT_TYPE(&av->cfg_val) == string)
238: strlcat(line, AIT_GET_STRZ(&av->cfg_val), sizeof line);
1.1 misho 239:
1.7 misho 240: /* write */
241: if (!cfg_Write(f, "%s\n", line)) {
242: LOGERR;
1.11 misho 243: _invertQueue(cfg);
1.7 misho 244: CFG_RC_UNLOCK(cfg);
245: return -1;
1.1 misho 246: }
247: }
1.7 misho 248: _invertQueue(cfg);
249: CFG_RC_UNLOCK(cfg);
250:
251: if (whitespace) {
252: time(&tim);
253: memset(line, 0, sizeof line);
254: strftime(line, sizeof line, "(UTC) %Y-%m-%d %H:%M:%S", gmtime(&tim));
255: cfg_Write(f, "\n## Config was saved at :: %s ##\n", line);
256: }
1.1 misho 257:
258: return 0;
259: }
260:
261: /*
1.7 misho 262: * cfgConcatConfig() - Concat two configs into one
263: *
264: * @cfg = Config root
265: * @add_cfg = Concated config will be destroy after merge
266: * return: -1 error or 0 ok
267: */
268: int
269: cfgConcatConfig(cfg_root_t * __restrict cfg, cfg_root_t * __restrict add_cfg)
1.1 misho 270: {
1.7 misho 271: struct tagCfg *item;
1.3 misho 272:
1.7 misho 273: if (!cfg || !add_cfg)
274: return -1;
1.3 misho 275:
1.7 misho 276: CFG_RC_LOCK(add_cfg);
277: CFG_RC_LOCK(cfg);
1.3 misho 278:
1.7 misho 279: /* concat lists */
280: for (item = SLIST_FIRST(cfg); SLIST_NEXT(item, cfg_next); item = SLIST_NEXT(item, cfg_next));
281: SLIST_NEXT(item, cfg_next) = SLIST_FIRST(add_cfg);
282:
283: /* concat red-black trees */
284: SLIST_FOREACH(item, add_cfg, cfg_next)
285: RB_INSERT(tagRC, cfg, item);
1.3 misho 286:
1.7 misho 287: CFG_RC_UNLOCK(cfg);
1.3 misho 288:
289: add_cfg->slh_first = NULL;
1.7 misho 290: add_cfg->rbh_root = NULL;
1.11 misho 291: CFG_RC_UNLOCK(add_cfg);
1.7 misho 292: pthread_mutex_destroy(&add_cfg->rc_mtx);
293: return 0;
1.3 misho 294: }
1.1 misho 295:
1.3 misho 296: /*
1.7 misho 297: * cfgMergeConfig() - Marge two list in one cfg and destroy add_cfg
298: *
299: * @cfg = Config root of main list
300: * @add_cfg = Merged config will be destroy after merge
301: * return: -1 error or 0 ok
302: */
303: int
304: cfgMergeConfig(cfg_root_t * __restrict cfg, cfg_root_t * __restrict add_cfg)
1.3 misho 305: {
1.10 misho 306: struct tagCfg *item, *merge, *add_next, *next;
1.3 misho 307: int flg;
1.1 misho 308:
1.3 misho 309: if (!cfg || !add_cfg)
1.1 misho 310: return -1;
311:
1.7 misho 312: CFG_RC_LOCK(add_cfg);
313: CFG_RC_LOCK(cfg);
1.10 misho 314:
315: /* merge lists */
1.7 misho 316: SLIST_FOREACH_SAFE(item, add_cfg, cfg_next, add_next) {
317: flg = 0;
318: SLIST_FOREACH_SAFE(merge, cfg, cfg_next, next) {
319: if (AIT_ISEMPTY(&merge->cfg_sec) && AIT_ISEMPTY(&item->cfg_sec)) {
1.3 misho 320: flg = 1;
321: break;
322: }
1.7 misho 323: if (!AIT_ISEMPTY(&merge->cfg_sec) && !AIT_ISEMPTY(&item->cfg_sec) &&
1.10 misho 324: AIT_ADDR(&merge->cfg_sec) && AIT_ADDR(&item->cfg_sec) &&
1.7 misho 325: !strcmp(AIT_GET_STR(&merge->cfg_sec), AIT_GET_STR(&item->cfg_sec))) {
1.3 misho 326: flg = 1;
327: break;
1.1 misho 328: }
329: }
1.3 misho 330:
1.10 misho 331: if (!flg)
332: SLIST_INSERT_HEAD(cfg, item, cfg_next);
333: else
1.7 misho 334: SLIST_INSERT_AFTER(merge, item, cfg_next);
1.10 misho 335: RB_INSERT(tagRC, cfg, item);
1.1 misho 336: }
1.10 misho 337:
1.7 misho 338: CFG_RC_UNLOCK(cfg);
1.1 misho 339:
1.3 misho 340: add_cfg->slh_first = NULL;
1.7 misho 341: add_cfg->rbh_root = NULL;
1.11 misho 342: CFG_RC_UNLOCK(add_cfg);
1.7 misho 343: pthread_mutex_destroy(&add_cfg->rc_mtx);
1.1 misho 344: return 0;
345: }
1.9 misho 346:
347: /*
348: * cfgReadLines() - Read custom lines and add new item at config root
349: *
350: * @f = File resource
351: * @delim = Custom delimiter, if =NULL default is '='
352: * @end = Custom user end of file, if =NULL default is EOF
353: * @cfg = Config root
354: * return: -1 error or 0 ok
355: */
356: int
357: cfgReadLines(FILE *f, const char *delim, const char *end, cfg_root_t * __restrict cfg)
358: {
359: char line[BUFSIZ];
360: struct tagCfg *d, *av = NULL;
1.11 misho 361: char *p, *psSec, *psAttr, *psVal;
362:
363: if (!cfg)
364: return -1;
365: if (!delim)
366: delim = ATR_LINES_DELIM;
1.9 misho 367:
368: while (!feof(f)) {
1.11 misho 369: psSec = psAttr = psVal = NULL;
1.9 misho 370: memset(line, 0, sizeof line);
371: fgets(line, sizeof line - 1, f);
372: /* check for user end-of-file */
373: if (strspn(line, end))
374: break;
375:
376: if (!(psAttr = strpbrk(line, "\r\n"))) {
377: /* skip line, too long */
378: continue;
379: } else {
380: *psAttr = 0;
1.11.4.1! misho 381: str_Trim(line);
1.9 misho 382: if (!*line)
383: continue;
384: }
385:
1.11.4.1! misho 386: if (!av_MakeExt(line, delim, &p, &psVal))
1.9 misho 387: continue;
388: else {
1.11.4.1! misho 389: str_RTrim(p);
! 390: str_LTrim(psVal);
1.9 misho 391: }
1.11.4.1! misho 392: if (!av_MakeExt(p, SEC_LINES_DELIM, &psSec, &psAttr))
1.11 misho 393: psAttr = p;
1.9 misho 394:
395: /* *NEW PAIR* alloc new pair element */
1.11.4.1! misho 396: av = e_malloc(sizeof(struct tagCfg));
1.9 misho 397: if (!av) {
398: LOGERR;
399: return -1;
400: } else
401: memset(av, 0, sizeof(struct tagCfg));
402:
1.11 misho 403: if (psSec) {
404: AIT_SET_STR(&av->cfg_sec, psSec);
405: AIT_KEY(&av->cfg_sec) = crcFletcher16(AIT_GET_LIKE(&av->cfg_sec, u_short*),
1.11.4.1! misho 406: E_ALIGN(AIT_LEN(&av->cfg_sec) - 1, 2) / 2);
1.11 misho 407: }
1.9 misho 408: if (psVal)
409: AIT_SET_STR(&av->cfg_val, psVal);
410: AIT_SET_STR(&av->cfg_attr, psAttr);
411: AIT_KEY(&av->cfg_attr) = crcFletcher16(AIT_GET_LIKE(&av->cfg_attr, u_short*),
1.11.4.1! misho 412: E_ALIGN(AIT_LEN(&av->cfg_attr) - 1, 2) / 2);
1.9 misho 413:
414: CFG_RC_LOCK(cfg);
415: /* find & delete duplicates */
416: if ((d = RB_FIND(tagRC, cfg, av))) {
417: RB_REMOVE(tagRC, cfg, d);
418: SLIST_REMOVE(cfg, d, tagCfg, cfg_next);
419:
420: AIT_FREE_VAL(&d->cfg_val);
421: AIT_FREE_VAL(&d->cfg_attr);
422: AIT_FREE_VAL(&d->cfg_sec);
1.11.4.1! misho 423: e_free(d);
1.9 misho 424: }
425:
426: SLIST_INSERT_HEAD(cfg, av, cfg_next);
427: RB_INSERT(tagRC, cfg, av);
428: CFG_RC_UNLOCK(cfg);
429: }
430:
431: return 0;
432: }
433:
1.11 misho 434: /*
435: * cfgWriteLines() - Write custom lines and export data to variable
436: *
437: * @f = File resource
438: * @delim = Custom delimiter, if =NULL default is '='
439: * @eol = End of line string, if =NULL default is "\n"
440: * @section = Export only section, if =NULL default is all
441: * @cfg = Config root
1.11.4.1! misho 442: * return: =NULL error or !=NULL exported data, must be free after use with ait_freeVar()
1.11 misho 443: */
444: ait_val_t *
445: cfgWriteLines(FILE *f, const char *delim, const char *eol, const char *section, cfg_root_t * __restrict cfg)
446: {
447: ait_val_t *v = NULL;
448: struct tagCfg *av;
449:
450: if (!cfg)
451: return NULL;
452: if (!delim)
453: delim = ATR_LINES_DELIM;
454: if (!eol)
455: eol = EOL_LINES_DELIM;
1.11.4.1! misho 456: if (!(v = ait_allocVar())) {
! 457: cfg_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
1.11 misho 458: return NULL;
459: } else
460: AIT_INIT_VAL2(v, string);
461:
462: SLIST_FOREACH(av, cfg, cfg_next) {
463: if (AIT_ISEMPTY(&av->cfg_attr))
464: continue;
465: if (section) {
466: if (!AIT_ISEMPTY(&av->cfg_sec) && *section)
467: continue;
468: if (strcmp(section, AIT_GET_STR(&av->cfg_sec)))
469: continue;
470: }
471:
472: if (!AIT_ISEMPTY(&av->cfg_sec)) {
473: AIT_SET_STRCAT(v, AIT_GET_STR(&av->cfg_sec));
474: AIT_SET_STRCAT(v, SEC_LINES_DELIM);
475: }
476: AIT_SET_STRCAT(v, AIT_GET_STR(&av->cfg_attr));
477: AIT_SET_STRCAT(v, delim);
478: if (!AIT_ISEMPTY(&av->cfg_val))
479: AIT_SET_STRCAT(v, AIT_GET_STR(&av->cfg_val));
480: AIT_SET_STRCAT(v, eol);
481: }
482:
483: if (f)
484: fputs(AIT_GET_STR(v), f);
485: return v;
486: }
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