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Make server name check a bit more strict

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(% characters made sendnumeric generate invalid format strings)
This commit is contained in:
k4be
2021-08-31 13:38:14 +02:00
parent 5df1b1b889
commit f4ad2416a7
1 changed files with 10 additions and 2 deletions
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src/serv.c
+10 -2
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@@ -1087,6 +1087,7 @@ void charsys_check_for_changes(void)
int valid_server_name(char *name)
{
char *p;
int has_dot = 0;
if (!*name)
return 0; /* empty name */
@@ -1095,10 +1096,17 @@ int valid_server_name(char *name)
return 0; /* oversized */
for (p = name; *p; p++)
if ((*p <= ' ') || (*p > '~'))
{
if (*p == '.')
{
has_dot = 1;
continue;
}
if ((*p <= '0') || (*p > 'z'))
return 0; /* forbidden chars */
}
if (!strchr(name, '.'))
if (!has_dot)
return 0; /* no dot */
return 1;