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Fix the code that removes trailing dots

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And make it easier to understand as well.
This commit is contained in:
Marco d'Itri 2014-10-24 09:21:20 +02:00
parent a34f18b7a0
commit e054c58eb2
1 changed files with 9 additions and 4 deletions
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13
whois.c
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@ -1110,7 +1110,7 @@ const char *is_new_gtld(const char *s)
/*
* Attempt to normalize a query by removing trailing dots and whitespace,
* then convert the domain to punycode.
* The function assumes that the domain is the last token of they query.
* The function assumes that the domain is the last token of the query.
* Returns a malloc'ed string which needs to be freed by the caller.
*/
char *normalize_domain(const char *dom)
@ -1121,10 +1121,15 @@ char *normalize_domain(const char *dom)
#endif
ret = strdup(dom);
/* eat trailing dots and blanks */
p = ret + strlen(ret);
for (; *p == '.' || *p == ' ' || *p == '\t' || p == ret; p--)
/* start from the last character */
p = ret + strlen(ret) - 1;
/* and then eat trailing dots and blanks */
while (p > ret) {
if (!(*p == '.' || *p == ' ' || *p == '\t'))
break;
*p = '\0';
p--;
}
#ifdef HAVE_LIBIDN
/* find the start of the last word if there are spaces in the query */