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Allow configuring IPv6 address for upstream proxy (#492)

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* Added support to configure IPv6 upstream proxy servers using bracket syntax.
* Added regular expression for IPv6 scope identifier to re for IPv6 address.
This commit is contained in:
Mario-Klebsch 2023-05-23 15:04:48 +02:00 committed by GitHub
parent ef60434b39
commit 2bec15ee40
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 6 deletions
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16
src/conf.c
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@ -66,9 +66,10 @@
#define PASSWORD "([^@]*)"
#define IP "((([0-9]{1,3})\\.){3}[0-9]{1,3})"
#define IPMASK "(" IP "(/" DIGIT "+)?)"
#define IPV6SCOPE "((%[^ \t\\/]{1,16})?)"
#define IPV6 "(" \
"(([0-9a-f:]{2,39}))|" \
"(([0-9a-f:]{0,29}:" IP "))" \
"([0-9a-f:]{2,39})" IPV6SCOPE "|" \
"([0-9a-f:]{0,29}:" IP ")" IPV6SCOPE \
")"
#define IPV6MASK "(" IPV6 "(/" DIGIT "+)?)"
@ -80,7 +81,7 @@
* number. Given the usual structure of the configuration file, sixteen
* substring matches should be plenty.
*/
#define RE_MAX_MATCHES 24
#define RE_MAX_MATCHES 33
#define CP_WARN(FMT, ...) \
log_message (LOG_WARNING, "line %lu: " FMT, lineno, __VA_ARGS__)
@ -249,7 +250,7 @@ struct {
"(" "(none)" WS STR ")|" \
"(" "(http|socks4|socks5)" WS \
"(" USERNAME /*username*/ ":" PASSWORD /*password*/ "@" ")?"
"(" IP "|" ALNUM ")"
"(" IP "|" "\\[(" IPV6 ")\\]" "|" ALNUM ")"
":" INT "(" WS STR ")?" ")", handle_upstream),
#endif
/* loglevel */
@ -1114,10 +1115,13 @@ static HANDLE_FUNC (handle_upstream)
pass = get_string_arg (line, &match[mi]);
mi++;
ip = get_string_arg (line, &match[mi]);
if (match[mi+4].rm_so != -1) /* IPv6 address in square brackets */
ip = get_string_arg (line, &match[mi+4]);
else
ip = get_string_arg (line, &match[mi]);
if (!ip)
return -1;
mi += 5;
mi += 16;
port = (int) get_long_arg (line, &match[mi]);
mi += 3;