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author | Richard Wilson <rjw@netsurf-browser.org> | 2006-12-01 21:09:49 +0000 |
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committer | Richard Wilson <rjw@netsurf-browser.org> | 2006-12-01 21:09:49 +0000 |
commit | ef65cb38bdb135423561726a9e19be076292318a (patch) | |
tree | 713f83e319cf276e421c5812547ee031909b9e75 /utils/url.c | |
parent | c9d76ba242f908f7d85ee4112335d9822e410e9d (diff) | |
download | netsurf-ef65cb38bdb135423561726a9e19be076292318a.tar.gz netsurf-ef65cb38bdb135423561726a9e19be076292318a.tar.bz2 |
Fix 1535120, 1528673
svn path=/trunk/netsurf/; revision=3087
Diffstat (limited to 'utils/url.c')
-rw-r--r-- | utils/url.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/utils/url.c b/utils/url.c index 1c8005a5d..f6f7fdc9d 100644 --- a/utils/url.c +++ b/utils/url.c @@ -64,6 +64,42 @@ void url_init(void) /** + * Check whether a host is an IP address + * + * \param host a hostname terminated by '\0' or '/' + * \return true if the hostname is an IP address, false otherwise + */ +bool url_host_is_ip_address(const char *host) { + int b; + bool n; + + assert(host); + + /* an IP address is of the format XXX.XXX.XXX.XXX, ie totally + * numeric with 3 full stops between the numbers */ + b = 0; // number of breaks + n = false; // number present + do { + if (*host == '.') { + if (!n) + return false; + b++; + n = false; + } else if ((*host == '\0') || (*host == '/')) { + if (!n) + return false; + /* todo: check the values are in 0-255 range */ + return (b == 3); + } else if (*host < '0' || *host > '9') { + return false; + } else { + n = true; + } + *host++; + } while (1); +} + +/** * Normalize a URL. * * \param url an absolute URL |