File 0003-sysconfig-fix-segfault-on-missed-end-quote-bsc-10277.patch of Package netcontrol.14434

From ca57462e67fdbd30269117d0e75a2257efefdefd Mon Sep 17 00:00:00 2001
From: Marius Tomaschewski <mt@suse.de>
Date: Fri, 28 Feb 2020 16:10:53 +0100
References: bsc#1027736
Upstream: merged
Subject: [PATCH] sysconfig: fix segfault on missed end-quote (bsc#1027736)


diff --git a/src/sysconfig.c b/src/sysconfig.c
index 48e929b..d03f23a 100644
--- a/src/sysconfig.c
+++ b/src/sysconfig.c
@@ -91,31 +91,32 @@ nc_sysconfig_free(nc_sysconfig_t *nsc)
 static int
 __unquote(char *string)
 {
-	char *src, *dst, cc;
+	char *src, *dst, qc = 0, lc = 0;
+	unsigned char cc;
+	int ret = 1;
 
 	src = dst = string;
-	while ((cc = *src++) != '\0') {
-		if (isspace(cc))
+	if (*string == '"' || *string == '\'') {
+		qc = *string;
+		src++;
+	}
+	do {
+		cc = *src;
+		if (!cc) {
+			ret = qc && lc == qc;
 			break;
-		if (*string == '"') {
-			while ((cc = *src++) != '"') {
-				if (cc == '\\') {
-					cc = *src++;
-					if (cc == '\0')
-						return 0;
-				}
-				*dst++ = cc;
-			}
-		} else if (*string == '\'') {
-			while ((cc = *src++) != '\'')
-				*dst++ = cc;
-			string = dst;
-		} else {
-			*dst++ = cc;
 		}
-	}
+		if (isspace(cc) && !qc)
+			break;
+		if (cc == qc)
+			break;
+		*dst = lc = cc;
+		dst++;
+		src++;
+	} while (1);
+
 	*dst = '\0';
-	return 1;
+	return ret;
 }
 
 static int
-- 
2.16.4