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m_option.c: fix list termination with -*-pre options 

Ensure that e.g. -af-pre will not cause the filter list to be
unterminated when the list was empty before.
Should fix bug #1687.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31559 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2010-06-25 16:56:40 +00:00 committed by Uoti Urpala
parent 6142e86b84
commit f145bebcae
1 changed files with 4 additions and 2 deletions
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m_option.c
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@ -531,10 +531,12 @@ static int str_list_add(char** add, int n,void* dst,int pre) {
lst = realloc(lst,(n+ln+1)*sizeof(char*));
if(pre) {
memmove(&lst[n],lst,(ln+1)*sizeof(char*));
memmove(&lst[n],lst,ln*sizeof(char*));
memcpy(lst,add,n*sizeof(char*));
} else
memcpy(&lst[ln],add,(n+1)*sizeof(char*));
memcpy(&lst[ln],add,n*sizeof(char*));
// (re-)add NULL-termination
lst[ln+n] = NULL;
free(add);