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res_pjsip: Strip spaces from items parsed from comma-separated lists

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Configurations like "aors = a, b, c" were either ignoring everything after "a"
or trying to look up " b".  Same for mailboxes,  ciphers, contacts and a few
others.

To fix, all the strsep(&copy, ",") calls have been wrapped in ast_strip.  To
facilitate this, ast_strip, ast_skip_blanks and ast_skip_nonblanks were
updated to handle null pointers.

In some cases, an ast_strlen_zero() test was added to skip consecutive commas.

There was also an attempt to ast_free an ast_strdupa'd string in
ast_sip_for_each_aor which was causing a SEGV.  I removed it.

Although this issue was reported for realtime, the issue was in the res_pjsip
modules so all config mechanisms were affected.

ASTERISK-25829 #close
Reported-by: Mateusz Kowalski

Change-Id: I0b22a2cf22a7c1c50d4ecacbfa540155bec0e7a2
This commit is contained in:
George Joseph
2016-03-06 13:38:41 -07:00
parent 6e58f83d8d
commit 530cff5f5f
12 changed files with 71 additions and 29 deletions
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6
res/res_pjsip_path.c
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@@ -53,9 +53,13 @@ static struct ast_sip_aor *find_aor(struct ast_sip_endpoint *endpoint, pjsip_uri
configured_aors = ast_strdupa(endpoint->aors);
/* Iterate the configured AORs to see if the user or the user+domain match */
while ((aor_name = strsep(&configured_aors, ","))) {
while ((aor_name = ast_strip(strsep(&configured_aors, ",")))) {
struct ast_sip_domain_alias *alias = NULL;
if (ast_strlen_zero(aor_name)) {
continue;
}
if (!pj_strcmp2(&sip_uri->user, aor_name)) {
break;
}