X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fwgtpkg-install.c;fp=src%2Fwgtpkg-install.c;h=7d0c3187e091bf999ccd45563b4787b9521c6060;hb=5b74cd6f2b5cdd82273759aa7d72150dfff58a2c;hp=264606a118e144202f8026fa68de8ce84bdb949b;hpb=628dc10767d95436538391534dc3c95f45fe9a3a;p=src%2Fapp-framework-main.git

diff --git a/src/wgtpkg-install.c b/src/wgtpkg-install.c
index 264606a..7d0c318 100644
--- a/src/wgtpkg-install.c
+++ b/src/wgtpkg-install.c
@@ -56,14 +56,19 @@ static int check_valid_string(const char *value, const char *name)
 		return -1;
 	pos = 0;
 	c = value[pos];
-	while(c) {
+	if (c == 0) {
+		ERROR("empty string forbidden in '%s' (temporary constraints)", name);
+		errno = EINVAL;
+		return -1;			
+	}
+	do {
 		if (!isalnum(c) && !strchr(".-_", c)) {
 			ERROR("forbidden char %c in '%s' -> '%s' (temporary constraints)", c, name, value);
 			errno = EINVAL;
 			return -1;			
 		}
 		c = value[++pos];
-	}
+	} while(c);
 	return 0;
 }