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Fix misuses of asprintf throughout the code.

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This fixes three main issues

* Change asprintf() uses to ast_asprintf() so that it
pairs properly with ast_free() and no longer causes
MALLOC_DEBUG to freak out.

* When ast_asprintf() fails, set the pointer NULL if
it will be referenced later.

* Fix some memory leaks that were spotted while taking
care of the first two points.

(Closes issue ASTERISK-20135)
reported by Richard Mudgett

Review: https://reviewboard.asterisk.org/r/2071
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Merged revisions 371590 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 371591 from http://svn.asterisk.org/svn/asterisk/branches/10
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Merged revisions 371592 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@371593 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2012-08-21 21:01:11 +00:00
parent 89a5ff859d
commit 6a539ace84
14 changed files with 61 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
apps/app_dial.c
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@@ -2900,8 +2900,7 @@ static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast
ast_exists_extension(peer, opt_args[OPT_ARG_CALLEE_GOSUB], "~~s~~", 1, S_COR(ast_channel_caller(peer)->id.number.valid, ast_channel_caller(peer)->id.number.str, NULL))) {
what_is_s = "~~s~~";
}
if (asprintf(&gosub_args, "%s,%s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], what_is_s, gosub_argstart + 1) < 0) {
ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
if (ast_asprintf(&gosub_args, "%s,%s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], what_is_s, gosub_argstart + 1) < 0) {
gosub_args = NULL;
}
*gosub_argstart = ',';
@@ -2911,8 +2910,7 @@ static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast
ast_exists_extension(peer, opt_args[OPT_ARG_CALLEE_GOSUB], "~~s~~", 1, S_COR(ast_channel_caller(peer)->id.number.valid, ast_channel_caller(peer)->id.number.str, NULL))) {
what_is_s = "~~s~~";
}
if (asprintf(&gosub_args, "%s,%s,1", opt_args[OPT_ARG_CALLEE_GOSUB], what_is_s) < 0) {
ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
if (ast_asprintf(&gosub_args, "%s,%s,1", opt_args[OPT_ARG_CALLEE_GOSUB], what_is_s) < 0) {
gosub_args = NULL;
}
}