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Fix doubly-linked list delete 

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3234 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer 2004-06-17 04:42:03 +00:00
parent 095b971fc6
commit 4f72a1da77
1 changed files with 20 additions and 4 deletions
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24
apps/app_meetme.c
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@ -938,14 +938,30 @@ outrun:
} else {
/* Remove the user struct */
if (user == conf->firstuser) {
user->nextuser->prevuser = NULL;
if (user->nextuser) {
/* There is another entry */
user->nextuser->prevuser = NULL;
} else {
/* We are the only entry */
conf->lastuser = NULL;
}
/* In either case */
conf->firstuser = user->nextuser;
} else if (user == conf->lastuser){
user->prevuser->nextuser = NULL;
if (user->prevuser)
user->prevuser->nextuser = NULL;
else
ast_log(LOG_ERROR, "Bad bad bad! We're the last, not the first, but nobody before us??\n");
conf->lastuser = user->prevuser;
} else {
user->nextuser->prevuser = user->prevuser;
user->prevuser->nextuser = user->nextuser;
if (user->nextuser)
user->nextuser->prevuser = user->prevuser;
else
ast_log(LOG_ERROR, "Bad! Bad! Bad! user->nextuser is NULL but we're not the end!\n");
if (user->prevuser)
user->prevuser->nextuser = user->nextuser;
else
ast_log(LOG_ERROR, "Bad! Bad! Bad! user->prevuser is NULL but we're not the beginning!\n");
}
/* Return the number of seconds the user was in the conf */
sprintf(meetmesecs, "%i", (int) (user->jointime - time(NULL)));