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urlapi: Fix port parsing of eol colon

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A URL with a single colon without a portnumber should use the default
port, discarding the colon. Fix, add a testcase and also do little bit
of comment wordsmithing.

Closes #3365
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
This commit is contained in:
Daniel Gustafsson 2018-12-12 11:45:09 +01:00
parent 4258dc02d8
commit d8607da1a6
2 changed files with 24 additions and 16 deletions
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32
lib/urlapi.c
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@ -534,6 +534,14 @@ UNITTEST CURLUcode Curl_parse_port(struct Curl_URL *u, char *hostname)
long port;
char portbuf[7];
/* Browser behavior adaptation. If there's a colon with no digits after,
just cut off the name there which makes us ignore the colon and just
use the default port. Firefox, Chrome and Safari all do that. */
if(!portptr[1]) {
*portptr = '\0';
return CURLUE_OK;
}
if(!ISDIGIT(portptr[1]))
return CURLUE_BAD_PORT_NUMBER;
@ -547,22 +555,14 @@ UNITTEST CURLUcode Curl_parse_port(struct Curl_URL *u, char *hostname)
if(rest[0])
return CURLUE_BAD_PORT_NUMBER;
if(rest != &portptr[1]) {
*portptr++ = '\0'; /* cut off the name there */
*rest = 0;
/* generate a new to get rid of leading zeroes etc */
msnprintf(portbuf, sizeof(portbuf), "%ld", port);
u->portnum = port;
u->port = strdup(portbuf);
if(!u->port)
return CURLUE_OUT_OF_MEMORY;
}
else {
/* Browser behavior adaptation. If there's a colon with no digits after,
just cut off the name there which makes us ignore the colon and just
use the default port. Firefox and Chrome both do that. */
*portptr = '\0';
}
*portptr++ = '\0'; /* cut off the name there */
*rest = 0;
/* generate a new port number string to get rid of leading zeroes etc */
msnprintf(portbuf, sizeof(portbuf), "%ld", port);
u->portnum = port;
u->port = strdup(portbuf);
if(!u->port)
return CURLUE_OUT_OF_MEMORY;
}
return CURLUE_OK;