shithub: masto9

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Update concat

--- a/util.c

+++ b/util.c

@@ -44,11 +44,14 @@

 char *

 concat(char *s1, char *s2)

 {

+	int len1 = strlen(s1);

+	int len2 = strlen(s2);

 	char *result;

-	result = emalloc(strlen(s1) + strlen(s2) + 1); // +1 for the null-terminator

-	strcpy(result, s1);

-	strcat(result, s2);

+	result =

+		emalloc(sizeof(char) * (len1 + len2 + 1)); // +1 for the null-terminator

+	memcpy(result, s1, len1);

+	memcpy(result + len1, s2, len2 + 1);

 	return result;

 }