version 1.3, 2009/10/19 15:00:10
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version 1.12, 2013/05/30 09:12:27
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* $Author$ |
* $Author$ |
* $Id$ |
* $Id$ |
* |
* |
*************************************************************************/ | ************************************************************************** |
#include "global.h" | The ELWIX and AITNET software is distributed under the following |
#include "aitcfg.h" | terms: |
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All of the documentation and software included in the ELWIX and AITNET |
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Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
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/* | Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
* SelectAttribute() Select item //{tagPair} from config list with attribute parameter(s) | by Michael Pounov <misho@elwix.org>. All rights reserved. |
* @cfg = Head list element | |
* @csSec = Config section //[{csSec}], if NULL search in *default* section | Redistribution and use in source and binary forms, with or without |
* @csAttr = Config attribute //{csAttr} = ..., if NULL search in *any* attribute | modification, are permitted provided that the following conditions |
* return: NULL not found attribute; //{tagPair} selected first seen attribute item from list | are met: |
| 1. Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| 3. All advertising materials mentioning features or use of this software |
| must display the following acknowledgement: |
| This product includes software developed by Michael Pounov <misho@elwix.org> |
| ELWIX - Embedded LightWeight unIX and its contributors. |
| 4. Neither the name of AITNET nor the names of its contributors |
| may be used to endorse or promote products derived from this software |
| without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND |
| ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| SUCH DAMAGE. |
*/ |
*/ |
static inline struct tagPair *SelectAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr) | #include "global.h" |
| |
| |
| static inline struct tagCfg * |
| _selectAttribute(cfg_root_t * __restrict cfg, const char *csSec, const char *csAttr) |
{ |
{ |
struct tagPair *av; | struct tagCfg fav, *c; |
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if (!cfg) |
if (!cfg) |
return NULL; |
return NULL; |
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else |
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memset(&fav, 0, sizeof fav); |
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for (av = cfg->slh_first; av; av = av->sle_next) { | if (csSec && *csSec) |
if ((!csSec || !*csSec) && !av->psSection) { | AIT_KEY(&fav.cfg_sec) = crcFletcher16((u_short*) csSec, |
if (!csAttr) | E_ALIGN(strlen(csSec), 2) / 2); |
return av; | if (csAttr) |
if (!strcmp((char*) av->psAttribute, (char*) csAttr)) | AIT_KEY(&fav.cfg_attr) = crcFletcher16((u_short*) csAttr, |
return av; | E_ALIGN(strlen(csAttr), 2) / 2); |
} | |
if (csSec && av->psSection && !strcmp((char*) av->psSection, (char*) csSec)) { | |
if (!csAttr) | |
return av; | |
if (!strcmp((char*) av->psAttribute, (char*) csAttr)) | |
return av; | |
} | |
} | |
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return NULL; | if (!csAttr) |
| return RB_NFIND(tagRC, cfg, &fav); |
| else { |
| c = RB_FIND(tagRC, cfg, &fav); |
| if (!c) |
| return NULL; /* not found */ |
| do { |
| if (!strcmp(AIT_GET_STR(&c->cfg_attr), csAttr)) |
| return c; /* FOUND! */ |
| } while (RB_NEXT(tagRC, cfg, c) && !cfg_tree_cmp(c, &fav)); |
| return NULL; /* not found */ |
| } |
} |
} |
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/* | /* --------------------------------------------------------------- */ |
* DestroyAttribute() Free //{tagPair} item elements memory and destroy resource | |
* @pair = Free this element | |
*/ | |
static inline void DestroyAttribute(struct tagPair *pair) | |
{ | |
if (!pair) | |
return; | |
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if (pair->psValue) |
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free(pair->psValue); |
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if (pair->psAttribute) |
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free(pair->psAttribute); |
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if (pair->psSection) |
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free(pair->psSection); |
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free(pair); |
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} |
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// ---------------------------------------------- |
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/* |
/* |
* cfg_FindAttribute() Find attribute position in config list | * cfg_findAttribute() - Find attribute position in config file |
* @cfg = Head list element | * |
| * @cfg = Config root |
* @csSec = Config section //[{csSec}] |
* @csSec = Config section //[{csSec}] |
* @csAttr = Config attribute //{csAttr} = ... |
* @csAttr = Config attribute //{csAttr} = ... |
* return: 0 not found item; -1 error: null parameters; >0 position in list | * return: 0 not found item, -1 error or >0 position in list |
*/ | */ |
inline int cfg_FindAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr) | int |
| cfg_findAttribute(cfg_root_t * __restrict cfg, const char *csSec, const char *csAttr) |
{ |
{ |
struct tagPair *av; | struct tagCfg *av, fav; |
register int cx = 0; |
register int cx = 0; |
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if (!cfg || !csAttr) | if (!cfg || !csAttr) { |
| cfg_SetErr(EINVAL, "Invalid argument(s)"); |
return -1; |
return -1; |
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} else |
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memset(&fav, 0, sizeof fav); |
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for (av = cfg->slh_first; av; av = av->sle_next) { | if (csSec && *csSec) |
| AIT_KEY(&fav.cfg_sec) = crcFletcher16((u_short*) csSec, |
| E_ALIGN(strlen(csSec), 2) / 2); |
| if (csAttr) |
| AIT_KEY(&fav.cfg_attr) = crcFletcher16((u_short*) csAttr, |
| E_ALIGN(strlen(csAttr), 2) / 2); |
| |
| SLIST_FOREACH(av, cfg, cfg_next) { |
++cx; |
++cx; |
if ((!csSec || !*csSec) && !av->psSection) | if (!cfg_tree_cmp(&fav, av)) |
if (!strcmp((char*) av->psAttribute, (char*) csAttr)) | return cx; |
return cx; | |
if (csSec && av->psSection && !strcmp((char*) av->psSection, (char*) csSec)) | |
if (!strcmp((char*) av->psAttribute, (char*) csAttr)) | |
return cx; | |
} |
} |
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return 0; |
return 0; |
} |
} |
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/* |
/* |
* cfg_UnsetAttribute() Unset item from config list and free resources | * cfg_unsetAttribute() - Unset item from config and free resources |
* @cfg = Head list element | * |
| * @cfg = Config root |
* @csSec = Config section //[{csSec}], if NULL unset in *default* section |
* @csSec = Config section //[{csSec}], if NULL unset in *default* section |
* @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute | * @csAttr = Config attribute //{csAttr} = ... |
* return: 0 item not found, -1 error: null parameters; >0 position in list | * return: 0 item not found, -1 error or 1 removed item |
*/ | */ |
int cfg_UnsetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr) | int |
| cfg_unsetAttribute(cfg_root_t * __restrict cfg, const char *csSec, const char *csAttr) |
{ |
{ |
struct tagPair *av, *curr; | struct tagCfg *av; |
register int cx = 0; | |
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if (!cfg || !csAttr) |
if (!cfg || !csAttr) |
return -1; |
return -1; |
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av = SelectAttribute(cfg, csSec, csAttr); | av = _selectAttribute(cfg, csSec, csAttr); |
if (!av) |
if (!av) |
return 0; |
return 0; |
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// remove element | CFG_RC_LOCK(cfg); |
// remove element when is first! | RB_REMOVE(tagRC, cfg, av); |
if (cfg->slh_first == av) { | SLIST_REMOVE(cfg, av, tagCfg, cfg_next); |
cfg->slh_first = cfg->slh_first->sle_next; | CFG_RC_UNLOCK(cfg); |
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DestroyAttribute(av); | AIT_FREE_VAL(&av->cfg_val); |
return 1; | AIT_FREE_VAL(&av->cfg_attr); |
} | AIT_FREE_VAL(&av->cfg_sec); |
// remove element in other cases... | e_free(av); |
curr = cfg->slh_first; | return 1; |
while (curr->sle_next != av) { | |
++cx; | |
curr = curr->sle_next; | |
} | |
curr->sle_next = curr->sle_next->sle_next; | |
| |
DestroyAttribute(av); | |
return cx; | |
} |
} |
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/* |
/* |
* cfg_SetAttribute() Set item in config list or add new item if not exists | * cfg_setAttribute() - Set item in config or adding new item if not exists |
* @cfg = Head list element | * |
| * @cfg = Config root |
* @csSec = Config section //[{csSec}], if NULL set in *default* section |
* @csSec = Config section //[{csSec}], if NULL set in *default* section |
* @csAttr = Config attribute //{csAttr} = ..., if NULL set as *any* attribute | * @csAttr = Config attribute //{csAttr} = ... |
* @csVal = Config value //... = {csVal} to setup |
* @csVal = Config value //... = {csVal} to setup |
* return: 0 nothing changed, -1 error: not enough memory; 1 find and update item; 2 added new item | * return: 0 nothing changed, -1 error, 1 found and updated item or 2 added new item |
*/ | */ |
int cfg_SetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr, const u_char *csVal) | int |
| cfg_setAttribute(cfg_root_t * __restrict cfg, const char *csSec, const char *csAttr, const char *csVal) |
{ |
{ |
struct tagPair *av, *section; | struct tagCfg *av, *section; |
int len; | |
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if (!cfg || !csAttr) |
if (!cfg || !csAttr) |
return -1; |
return -1; |
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av = SelectAttribute(cfg, csSec, csAttr); | av = _selectAttribute(cfg, csSec, csAttr); |
if (!av) { |
if (!av) { |
section = SelectAttribute(cfg, csSec, NULL); | /* adding new element */ |
| section = _selectAttribute(cfg, csSec, NULL); |
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av = malloc(sizeof(struct tagPair)); | av = e_malloc(sizeof(struct tagCfg)); |
if (!av) { |
if (!av) { |
LOGERR; |
LOGERR; |
return -1; |
return -1; |
} else { |
} else { |
memset(av, 0, sizeof(struct tagPair)); | memset(av, 0, sizeof(struct tagCfg)); |
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if (!section) { | CFG_RC_LOCK(cfg); |
// add new element | if (!section) |
av->sle_next = cfg->slh_first; | SLIST_INSERT_HEAD(cfg, av, cfg_next); |
cfg->slh_first = av; | else |
} else { | SLIST_INSERT_AFTER(section, av, cfg_next); |
// add new element in existing section | CFG_RC_UNLOCK(cfg); |
av->sle_next = section->sle_next; | |
section->sle_next = av; | |
} | |
} |
} |
// added section name to element |
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if (csSec && *csSec) { |
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len = strlen((char*) csSec) + 1; |
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av->psSection = malloc(len); |
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if (!av->psSection) { |
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LOGERR; |
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free(av); |
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return -1; |
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} else { |
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strlcpy((char*) av->psSection, (char*) csSec, len); |
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} |
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} else |
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av->psSection = NULL; |
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// added attribute to element | if (csSec && *csSec) { |
len = strlen((char*) csAttr) + 1; | AIT_SET_STR(&av->cfg_sec, csSec); |
av->psAttribute = malloc(len); | AIT_KEY(&av->cfg_sec) = crcFletcher16(AIT_GET_LIKE(&av->cfg_sec, u_short*), |
if (!av->psAttribute) { | E_ALIGN(AIT_LEN(&av->cfg_sec) - 1, 2) / 2); |
LOGERR; | |
free(av->psSection); | |
free(av); | |
return -1; | |
} else { | |
strlcpy((char*) av->psAttribute, (char*) csAttr, len); | |
} |
} |
// added value to element | AIT_SET_STR(&av->cfg_val, csVal ? csVal : ""); |
if (csVal && *csVal) { | AIT_SET_STR(&av->cfg_attr, csAttr); |
len = strlen((char*) csVal) + 1; | AIT_KEY(&av->cfg_attr) = crcFletcher16(AIT_GET_LIKE(&av->cfg_attr, u_short*), |
av->psValue = malloc(len); | E_ALIGN(AIT_LEN(&av->cfg_attr) - 1, 2) / 2); |
if (!av->psValue) { | |
LOGERR; | |
free(av->psAttribute); | |
free(av->psSection); | |
free(av); | |
return -1; | |
} else { | |
strlcpy((char*) av->psValue, (char*) csVal, len); | |
} | |
} else { | |
av->psValue = malloc(1); | |
*av->psValue = 0; | |
} | |
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// Added new element | CFG_RC_LOCK(cfg); |
| RB_INSERT(tagRC, cfg, av); |
| CFG_RC_UNLOCK(cfg); |
return 2; |
return 2; |
} |
} |
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if (strcmp((char*) csVal, (char*) av->psValue)) { | if (csVal && AIT_ADDR(&av->cfg_val) && |
len = strlen((char*) csVal) + 1; | strcmp((char*) csVal, (char*) AIT_GET_STR(&av->cfg_val))) { |
av->psValue = realloc(av->psValue, len); | /* Update element */ |
strlcpy((char*) av->psValue, (char*) csVal, len); | AIT_FREE_VAL(&av->cfg_val); |
| AIT_SET_STR(&av->cfg_val, csVal); |
// Update element | |
return 1; |
return 1; |
} |
} |
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// Nothing happens ... finded & values is equal! | /* Nothing happens ... found & values is equal! */ |
return 0; |
return 0; |
} |
} |
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/* |
/* |
* cfg_GetAttribute() Get item from config list and return his value | * cfg_getAttribute() - Get item from config and return value from it |
* @cfg = Head list element | * |
| * @cfg = Config root |
* @csSec = Config section //[{csSec}], if NULL unset in *default* section |
* @csSec = Config section //[{csSec}], if NULL unset in *default* section |
* @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute |
* @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute |
* return: NULL item not found or null parameters; !=NULL value const string | * return: NULL item not found or null parameters, !=NULL value const string |
*/ | */ |
inline const u_char *cfg_GetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr) | const char * |
| cfg_getAttribute(cfg_root_t * __restrict cfg, const char *csSec, const char *csAttr) |
{ |
{ |
struct tagPair *av; | struct tagCfg *av; |
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if (!cfg || !csAttr) |
if (!cfg || !csAttr) |
return NULL; |
return NULL; |
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av = SelectAttribute(cfg, csSec, csAttr); | av = _selectAttribute(cfg, csSec, csAttr); |
if (!av) |
if (!av) |
return NULL; |
return NULL; |
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return av->psValue; | return AIT_GET_STR(&av->cfg_val); |
} |
} |
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// -------------------------------------------------------------- |
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/* |
/* |
* cfg_LoadAttribute() Extended get attribute, if not found item return *default value* | * cfg_loadAttribute() - Get guarded attribute, if not found item return *default value* |
* @cfg = Head list element | * |
| * @cfg = Config root |
* @csSec = Config section //[{csSec}], if NULL unset in *default* section |
* @csSec = Config section //[{csSec}], if NULL unset in *default* section |
* @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute | * @csAttr = Config attribute //{csAttr} = ... |
* @psVal = Return buffer for item Value //... = {psVal} | * @val = Return buffer for item Value //... = {val} |
* @ValLen = Length of buffer //{psVal} for return | * @csDefValue = *Default Value* for return in //{val}, if not found item in config |
* @csDefValue = *Default Value* for return in //{psVal}, if not found item in config list | * return: 0 item not found, -1 error or >0 number of copied bytes in //{val} |
* return: 0 item not found, -1 error: null parameters; >0 number of copied bytes in //{psVal} | */ |
*/ | int |
int cfg_LoadAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr, | cfg_loadAttribute(cfg_root_t * __restrict cfg, const char *csSec, const char *csAttr, |
u_char * __restrict psVal, int ValLen, const char *csDefValue) | ait_val_t * __restrict val, const char *csDefValue) |
{ |
{ |
struct tagPair *av; | struct tagCfg *av; |
int ret = 0; |
int ret = 0; |
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if (!cfg || !csAttr || !ValLen || !psVal) | if (!cfg || !csAttr || !val) { |
| cfg_SetErr(EINVAL, "Invalid argument(s)"); |
return -1; |
return -1; |
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} |
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av = SelectAttribute(cfg, csSec, csAttr); | AIT_INIT_VAL(val); |
| av = _selectAttribute(cfg, csSec, csAttr); |
if (!av) { |
if (!av) { |
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/* not found item */ |
if (csDefValue) { |
if (csDefValue) { |
strlcpy((char*) psVal, csDefValue, ValLen); | AIT_SET_STR(val, csDefValue); |
ret = strlen((char*) psVal); | ret = AIT_LEN(val); |
} | } else |
| AIT_INIT_VAL(val); |
return ret; |
return ret; |
} |
} |
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if (!av->psValue || !*av->psValue) { | if (AIT_ISEMPTY(&av->cfg_val) || !AIT_ADDR(&av->cfg_val) || |
| !*AIT_GET_LIKE(&av->cfg_val, char*)) { |
| /* empty value */ |
if (csDefValue) { |
if (csDefValue) { |
strlcpy((char*) psVal, csDefValue, ValLen); | AIT_SET_STR(val, csDefValue); |
ret = strlen((char*) psVal); | ret = AIT_LEN(val); |
} | } else |
| AIT_INIT_VAL(val); |
} else { |
} else { |
strlcpy((char*) psVal, (char*) av->psValue, ValLen); | /* copy value */ |
ret = strlen((char*) psVal); | AIT_SET_STR(val, AIT_GET_STR(&av->cfg_val)); |
| ret = AIT_LEN(val); |
} |
} |
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return ret; |
return ret; |