Alawn/shadowsocks-libev
1
0
Fork 0
mirror of https://github.com/shadowsocks/shadowsocks-libev.git synced 2026-11-05 14:14:34 +00:00
Code Releases Activity

Add validation of domain name

Browse Source
This commit is contained in:
Max Lv
2016-08-31 09:45:47 +08:00
parent c6e1a467bc
commit bf194fef75
3 changed files with 26 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/netutils.c
+18
View File
@@ -251,3 +251,21 @@ int sockaddr_cmp_addr(struct sockaddr_storage *addr1,
return memcmp(addr1, addr2, len);
}
}
int validate_domain_name(const char *hostname, const int len)
{
int i;
for (i = 0; i < len; i++)
{
char c = hostname[i];
int is_hyphen = c == 0x2D;
int is_stop = c == 0x2E;
int is_digit = c >= 0x30 && c <= 0x39;
int is_letter = (c >= 0x41 && c <= 0x5A) || (c >= 0x61 && c <= 0x7A);
if (!is_hyphen && !is_stop && !is_digit && !is_letter)
return 0;
}
return 1;
}