rofs: check for empty string in lookup

Hubert Badocha · Hubert Badocha · commit ffe6d596549b · 2024-10-03T13:19:23.000+02:00
JIRA: RTOS-927
diff --git a/rofs/rofs.c b/rofs/rofs.c
@@ -439,7 +439,7 @@ int rofs_lookup(struct rofs_ctx *ctx, oid_t *dir, const char *name, oid_t *fil,
 	int res;
 
 	fil->port = ctx->oid.port;
-	if (name == NULL) {
+	if ((name == NULL) || (name[0] == '\0')) {
 		return -EINVAL;
 	}
 
@@ -448,7 +448,7 @@ int rofs_lookup(struct rofs_ctx *ctx, oid_t *dir, const char *name, oid_t *fil,
 	}
 
 	while (name[len] != '\0') {
-		while (name[len] == '/' && name[len] != '\0') {
+		while ((name[len] == '/') && (name[len] != '\0')) {
 			len++;
 		}
 

Original file line number	Diff line number	Diff line change
`@@ -439,7 +439,7 @@ int rofs_lookup(struct rofs_ctx ctx, oid_t dir, const char name, oid_t fil,`
`439`	`439`	`int res;`
`440`	`440`
`441`	`441`	`fil->port = ctx->oid.port;`
`442`		`- if (name == NULL) {`
	`442`	`+ if ((name == NULL) \|\| (name[0] == '\0')) {`
`443`	`443`	`return -EINVAL;`
`444`	`444`	`}`
`445`	`445`
`@@ -448,7 +448,7 @@ int rofs_lookup(struct rofs_ctx ctx, oid_t dir, const char name, oid_t fil,`
`448`	`448`	`}`
`449`	`449`
`450`	`450`	`while (name[len] != '\0') {`
`451`		`- while (name[len] == '/' && name[len] != '\0') {`
	`451`	`+ while ((name[len] == '/') && (name[len] != '\0')) {`
`452`	`452`	`len++;`
`453`	`453`	`}`
`454`	`454`