util.c: increase name max length from 64 to 253

To match the hostname check in src/firejail/main.c.

1 files changed, 4 insertions, 5 deletions

diff --git a/src/firejail/util.c b/src/firejail/util.c
index a0af3d4bf..78704fa64 100644
--- a/src/firejail/util.c
+++ b/src/firejail/util.c
@@ -1479,8 +1479,11 @@ int ascii_isxdigit(unsigned char c) {
 // allow strict ASCII letters and numbers; names with only numbers are rejected; spaces are rejected
 int invalid_name(const char *name) {
         const char *c = name;
-
         int only_numbers = 1;
+
+        if (strlen(name) > 253)
+                return 1;
+
         while (*c) {
                 if (!ascii_isalnum(*c))
                         return 1;
@@ -1491,10 +1494,6 @@ int invalid_name(const char *name) {
         if (only_numbers)
                 return 1;
 
-        // restrict name to 64 chars max
-        if (strlen(name) > 64)
-                return 1;
-
         return 0;
 }