[sr-dev] git:master: core: add str_append helper function

Module: sip-router Branch: master Commit: 802771362eee707ecb55c2a907f96d2dbaff620e URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=8027713… Author: Victor Seva &lt;linuxmaniac(a)torreviejawireless.org&gt; Committer: Victor Seva &lt;linuxmaniac(a)torreviejawireless.org&gt; Date: Mon Apr 28 16:20:57 2014 +0200 core: add str_append helper function --- str.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ str.h | 9 +++++++++ 2 files changed, 54 insertions(+), 0 deletions(-) diff --git a/str.c b/str.c new file mode 100644 index 0000000..913dc7b --- /dev/null +++ b/str.c @@ -0,0 +1,45 @@ +/** + * $Id$ + * + * Copyright (C) 2014 Victor Seva &lt;vseva(a)sipwise.com&gt; + * + * This file is part of kamailio, a free SIP server. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <string.h> +#include "str.h" +#include "mem/mem.h" + +int str_append(str *orig, str *suffix, str *dest) +{ + if(orig == NULL || suffix == NULL || suffix->len == 0 || dest == NULL) + { + LM_ERR("wrong parameters\n"); + return -1; + } + dest->len = orig->len + suffix->len; + dest->s = pkg_malloc(sizeof(char)*dest->len); + if(dest->s==NULL) + { + LOG(L_ERR, "memory allocation failure\n"); + return -1; + } + if(orig->len>0) + { + memcpy(dest->s, orig->s, orig->len); + } + memcpy(dest->s+orig->len, suffix->s, suffix->len); + return 0; +} diff --git a/str.h b/str.h index 1985730..5414be0 100644 --- a/str.h +++ b/str.h @@ -121,4 +121,13 @@ typedef struct _str str; /** @} */ +/** Appends a sufffix + * @param orig is the original string + * @param suffix is the suffix string + * @param dest is the result ::str of appending suffix to orig + * @return 0 if ok -1 if error + * remember to free the dest->s private memory + */ +int str_append(str *orig, str *suffix, str *dest); + #endif