Extend the index parameter checking from sk_value to sk_set(). Also tidy up
some similar code elsewhere. Thanks to Francesco Petruzzi for bringing this to my attention.
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1c27ce4e70
1 changed files with 2 additions and 3 deletions
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@ -189,8 +189,7 @@ char *sk_delete(STACK *st, int loc)
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char *ret;
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int i,j;
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if ((st == NULL) || (st->num == 0) || (loc < 0)
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|| (loc >= st->num)) return(NULL);
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if(!st || (loc < 0) || (loc >= st->num)) return NULL;
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ret=st->data[loc];
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if (loc != st->num-1)
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@ -310,7 +309,7 @@ char *sk_value(const STACK *st, int i)
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char *sk_set(STACK *st, int i, char *value)
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{
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if(st == NULL) return NULL;
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if(!st || (i < 0) || (i >= st->num)) return NULL;
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return (st->data[i] = value);
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}
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