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-rw-r--r--libglusterfs/src/common-utils.c30
1 files changed, 7 insertions, 23 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index 791ecefe62b..63d7f6e3530 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -1625,11 +1625,9 @@ get_nth_word (const char *str, int n)
return word;
}
-/* RFC 1123 & 952 */
-/* Syntax formed combining RFC 1123 & 952 *
- <hname> ::= <first-name>*["."<gen-name>] *
- <first-name> ::= <let-or-digit> <[*[<let-or-digit-or-hyphen>]<let-or-digit>]
- <gen-name> ::= <let>[*[<let-or-digit-or-hyphen>]<let-or-digit>] */
+/* Syntax formed according to RFC 1912 (RFC 1123 & 952 are more restrictive) *
+ <hname> ::= <gen-name>*["."<gen-name>] *
+ <gen-name> ::= <let-or-digit> <[*[<let-or-digit-or-hyphen>]<let-or-digit>] */
char
valid_host_name (char *address, int length)
{
@@ -1650,27 +1648,13 @@ valid_host_name (char *address, int length)
ret = 0;
goto out;
}
- temp_str = strtok_r (dup_addr,".", &save_ptr);
-
- /* first-name */
- if (!temp_str ||
- !isalnum(temp_str[0]) ||
- !isalnum (temp_str[strlen(temp_str)-1])) {
- ret = 0;
- goto out;
- }
- for (i = 1; i < (strlen (temp_str) - 1); i++) {
- if (!isalnum (temp_str[i]) && (temp_str[i] != '-')) {
- ret = 0;
- goto out;
- }
- }
/* gen-name */
- while ((temp_str = strtok_r (NULL, ".", &save_ptr))) {
+ temp_str = strtok_r (dup_addr, ".", &save_ptr);
+ do {
str_len = strlen (temp_str);
- if (!isalpha (temp_str[0]) ||
+ if (!isalnum (temp_str[0]) ||
!isalnum (temp_str[str_len-1])) {
ret = 0;
goto out;
@@ -1681,7 +1665,7 @@ valid_host_name (char *address, int length)
goto out;
}
}
- }
+ } while ((temp_str = strtok_r (NULL, ".", &save_ptr)));
out:
GF_FREE (dup_addr);