From: Egor <egor@patchysicp.xyz>
Date: Tue, 3 May 2022 08:10:05 +0000 (+0300)
Subject: remove dumb null termination from append_strn
X-Git-Url: https://git.patchysicp.xyz/?a=commitdiff_plain;h=dd4fa2061d9bc29674f2f7aea0d2cf3becc7f897;p=patchyircd.git

remove dumb null termination from append_strn

literal buffer overrun
---

diff --git a/util.c b/util.c
index 73e84c1..df9b878 100644
--- a/util.c
+++ b/util.c
@@ -6,15 +6,12 @@ void append_strn(struct dynarr *d, const char *s, int len){
 	if (d->len + len > d->cap){
 		while (d->len + len > d->cap)
 			d->cap *= 2;
-		void* ndata=realloc(d->buf, d->cap);
-		if(!ndata)abort();
+		void *ndata = realloc(d->buf, d->cap);
+		if(!ndata) abort();
 		d->buf = ndata;
 	}
 	memcpy(d->buf + d->len, s, len);
 	d->len += len;
-	// Null
-	d->buf[d->len] = 0;
-	d->buf[d->cap] = 0;
 }
 void append_str(struct dynarr *d, const char *s){
 	append_strn(d, s, strlen(s));