Merge pull request #29224 from keszybz/netdev-config-parsing

Use a helper to simplify parsing of ranges in netdev config and related changes

src/basic/parse-util.c

@@ -425,6 +425,21 @@ int safe_atou_full(const char *s, unsigned base, unsigned *ret_u) {
         return 0;
 }
 
+int safe_atou_bounded(const char *s, unsigned min, unsigned max, unsigned *ret) {
+        unsigned v;
+        int r;
+
+        r = safe_atou(s, &v);
+        if (r < 0)
+                return r;
+
+        if (v < min || v > max)
+                return -ERANGE;
+
+        *ret = v;
+        return 0;
+}
+
 int safe_atoi(const char *s, int *ret_i) {
         unsigned base = 0;
         char *x = NULL;

src/basic/parse-util.h

@@ -30,11 +30,12 @@ int parse_fd(const char *t);
 #define SAFE_ATO_MASK_FLAGS(base) ((base) & ~SAFE_ATO_ALL_FLAGS)
 
 int safe_atou_full(const char *s, unsigned base, unsigned *ret_u);
-
 static inline int safe_atou(const char *s, unsigned *ret_u) {
         return safe_atou_full(s, 0, ret_u);
 }
 
+int safe_atou_bounded(const char *s, unsigned min, unsigned max, unsigned *ret);
+
 int safe_atoi(const char *s, int *ret_i);
 int safe_atolli(const char *s, long long int *ret_i);