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Don't crash when passing a NULL message to __astman_get_header.

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Before this commit, __astman_get_header would blindly dereference the passed in
'struct message *' to traverse the header list.  There are cases, however, such
as '*CLI> sip qualify peer foo' where the message pointer is NULL, so we need
to check for that.
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Merged revisions 373131 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 373132 from http://svn.asterisk.org/svn/asterisk/branches/10
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Merged revisions 373133 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@373134 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Sean Bright
2012-09-18 20:14:33 +00:00
parent f8d815e19f
commit 54c531ff1c
1 changed files with 4 additions and 0 deletions
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4
main/manager.c
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@@ -1935,6 +1935,10 @@ static const char *__astman_get_header(const struct message *m, char *var, int m
int x, l = strlen(var);
const char *result = "";
if (!m) {
return result;
}
for (x = 0; x < m->hdrcount; x++) {
const char *h = m->headers[x];
if (!strncasecmp(var, h, l) && h[l] == ':') {