Module: sip-router Branch: janakj/kcore Commit: 06e7f4bab16c3f78686282d67ab16fb2065f01e4 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=06e7f4b… Author: Jan Janak &lt;jan(a)iptel.org&gt; Committer: Jan Janak &lt;jan(a)iptel.org&gt; Date: Tue Mar 3 16:22:22 2009 +0100 Adding cmpapi.[ch] from kamailio core. --- lib/kcore/cmpapi.c | 240 ++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/kcore/cmpapi.h | 57 ++++++++++++ 2 files changed, 297 insertions(+), 0 deletions(-) diff --git a/lib/kcore/cmpapi.c b/lib/kcore/cmpapi.c new file mode 100644 index 0000000..8223052 --- /dev/null +++ b/lib/kcore/cmpapi.c @@ -0,0 +1,240 @@ +/* + * $Id$ + * + * Copyright (C) 2001-2003 FhG Fokus + * + * This file is part of Kamailio, a free SIP server. + * + * Kamailio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version + * + * Kamailio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/*! + * \file + * \brief comparison functions + */ + +#include "../../parser/parse_uri.h" +#include "../../parser/parse_param.h" +#include "cmpapi.h" + +int cmp_str(str *s1, str *s2) +{ + int ret = 0; + int len = 0; + if(s1->len==0 && s2->len==0) + return 0; + if(s1->len==0) + return -1; + if(s2->len==0) + return 1; + len = (s1->len<s2->len)?s1->len:s2->len; + ret = strncmp(s1->s, s2->s, len); + if(ret==0) + { + if(s1->len==s2->len) + return 0; + if(s1->len<s2->len) + return -1; + return 1; + } + return ret; +} + +int cmpi_str(str *s1, str *s2) +{ + int ret = 0; + int len = 0; + if(s1->len==0 && s2->len==0) + return 0; + if(s1->len==0) + return -1; + if(s2->len==0) + return 1; + len = (s1->len<s2->len)?s1->len:s2->len; + ret = strncasecmp(s1->s, s2->s, len); + if(ret==0) + { + if(s1->len==s2->len) + return 0; + if(s1->len<s2->len) + return -1; + return 1; + } + return ret; +} + +int cmp_hdrname_str(str *s1, str *s2) +{ + /* todo: parse hdr name and compare with short/long alternative */ + return cmpi_str(s1, s2); +} + +int cmp_hdrname_strzn(str *s1, char *s2, size_t n) +{ + str s; + s.s = s2; + s.len = n; + return cmpi_str(s1, &s); +} + +int cmp_str_params(str *s1, str *s2) +{ + param_t* pl1 = NULL; + param_hooks_t phooks1; + param_t *pit1=NULL; + param_t* pl2 = NULL; + param_hooks_t phooks2; + param_t *pit2=NULL; + + if (parse_params(s1, CLASS_ANY, &phooks1, &pl1)<0) + return -1; + if (parse_params(s2, CLASS_ANY, &phooks2, &pl2)<0) + return -1; + for (pit1 = pl1; pit1; pit1=pit1->next) + { + for (pit2 = pl2; pit2; pit2=pit2->next) + { + if (pit1->name.len==pit2->name.len + && strncasecmp(pit1->name.s, pit2->name.s, pit2->name.len)==0) + { + if(pit1->body.len!=pit2->body.len + || strncasecmp(pit1->body.s, pit2->body.s, + pit2->body.len)!=0) + return 1; + } + } + } + return 0; +} + +/** + * Compare SIP URI as per RFC3261, 19.1.4 + * return: + * - 0: match + * - >0: no match + * - <0: error + */ +int cmp_uri(struct sip_uri *uri1, struct sip_uri *uri2) +{ + if(uri1->type!=uri2->type) + return 1; + /* quick check for length */ + if(uri1->user.len!=uri2->user.len + || uri1->host.len!=uri2->host.len + || uri1->port.len!=uri2->port.len + || uri1->passwd.len!=uri2->passwd.len) + return 1; + if(cmp_str(&uri1->user, &uri2->user)!=0) + return 1; + if(cmp_str(&uri1->port, &uri2->port)!=0) + return 1; + if(cmp_str(&uri1->passwd, &uri2->passwd)!=0) + return 1; + if(cmpi_str(&uri1->host, &uri2->host)!=0) + return 1; + /* if no params, we are done */ + if(uri1->params.len==0 && uri2->params.len==0) + return 0; + if(uri1->params.len==0) + { + if(uri2->user_param.len!=0) + return 1; + if(uri2->ttl.len!=0) + return 1; + if(uri2->method.len!=0) + return 1; + if(uri2->maddr.len!=0) + return 1; + } + if(uri2->params.len==0) + { + if(uri1->user_param.len!=0) + return 1; + if(uri1->ttl.len!=0) + return 1; + if(uri1->method.len!=0) + return 1; + if(uri1->maddr.len!=0) + return 1; + } + return cmp_str_params(&uri1->params, &uri2->params); +} + +/** + * return: + * - 0: match + * - >0: no match + * - <0: error + */ +int cmp_uri_str(str *s1, str *s2) +{ + struct sip_uri uri1; + struct sip_uri uri2; + + /* todo: parse uri and compare the parts */ + if(parse_uri(s1->s, s1->len, &uri1)!=0) + return -1; + if(parse_uri(s2->s, s2->len, &uri2)!=0) + return -1; + return cmp_uri(&uri1, &uri2); +} + +/** + * Compare SIP AoR + * - match user, host and port (if port missing, assume 5060) + * return: + * - 0: match + * - >0: no match + * - <0: error + */ +int cmp_aor(struct sip_uri *uri1, struct sip_uri *uri2) +{ + /* quick check for length */ + if(uri1->user.len!=uri2->user.len + || uri1->host.len!=uri2->host.len) + return 1; + if(cmp_str(&uri1->user, &uri2->user)!=0) + return 1; + if(cmp_str(&uri1->port, &uri2->port)!=0) + { + if(uri1->port.len==0 && uri2->port_no!=5060) + return 1; + if(uri2->port.len==0 && uri1->port_no!=5060) + return 1; + } + if(cmpi_str(&uri1->host, &uri2->host)!=0) + return 1; + return 0; +} + +/** + * return: + * - 0: match + * - >0: no match + * - <0: error + */ +int cmp_aor_str(str *s1, str *s2) +{ + struct sip_uri uri1; + struct sip_uri uri2; + + /* todo: parse uri and compare the parts */ + if(parse_uri(s1->s, s1->len, &uri1)!=0) + return -1; + if(parse_uri(s2->s, s2->len, &uri2)!=0) + return -1; + return cmp_aor(&uri1, &uri2); +} + diff --git a/lib/kcore/cmpapi.h b/lib/kcore/cmpapi.h new file mode 100644 index 0000000..89038f8 --- /dev/null +++ b/lib/kcore/cmpapi.h @@ -0,0 +1,57 @@ +/* + * $Id$ + * + * Copyright (C) 2001-2003 FhG Fokus + * + * This file is part of Kamailio, a free SIP server. + * + * Kamailio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version + * + * Kamailio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/*! + * \file + * \brief comparison functions + */ + +#ifndef _CMPAPI_H_ +#define _CMPAPI_H_ + +#include <string.h> +#include "../../str.h" + +/** + * Comparison functions + * - return: + * - < 0 - less + * - ==0 - equal + * - > 0 - greater + * cmp_str* - for strings does case sensitive comparison + * cmpi_str* - for strings does case insensitive comparison + * + */ + +#define cmp_strz(a, b) strcmp((a), (b)) +#define cmpi_strz(a, b) strcasecmp((a), (b)) + +int cmp_str(str *s1, str *s2); +int cmpi_str(str *s1, str *s2); + +int cmp_hdrname_str(str *s1, str *s2); +int cmp_hdrname_strzn(str *s1, char *s2, size_t n); +int cmp_uri_str(str *s1, str *s2); +int cmp_aor_str(str *s1, str *s2); + +#endif +