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misc.c: in cm_mbchar check string!=NULL before dereferencing it

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Edmond Orignac 2021-04-03 22:25:23 +02:00 committed by Jon Trulson
parent 297918bb56
commit 53c35daea1
1 changed files with 2 additions and 2 deletions
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4
cde/programs/dtcm/dtcm/misc.c
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@ -639,7 +639,7 @@ cm_mbchar(char *str) {
free(buf);
buf = NULL;
}
if ( *string == '\0' ) {
if ( string != NULL && *string == '\0' ) {
free(string_head);
string_head = NULL;
string = NULL;
@ -652,7 +652,7 @@ cm_mbchar(char *str) {
string += num_byte;
}
}
return buf;
}