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2015-05-18hostip: fix unintended destruction of hash tableAnthony Avina
.. and added unit1602 for hash.c
2015-05-12hostcache: made all host caches use structs, not pointersDaniel Stenberg
This avoids unnecessary dynamic allocs and as this also removed the last users of *hash_alloc() and *hash_destroy(), those two functions are now removed.
2015-04-03hostip: fix compiler warningsDaniel Stenberg
introduced in the previous mini-series of 3 commits
2015-04-03actually implement CURLOPT_RESOLVE removalsStefan Bühler
- also log when a CURLOPT_RESOLVE entry couldn't get parsed
2015-04-03move Curl_share_lock and ref counting into Curl_fetch_addrStefan Bühler
2015-04-03fix refreshing of obsolete dns cache entriesStefan Bühler
- cache entries must be also refreshed when they are in use - have the cache count as inuse reference too, freeing timestamp == 0 special value - use timestamp == 0 for CURLOPT_RESOLVE entries which don't get refreshed - remove CURLOPT_RESOLVE special inuse reference (timestamp == 0 will prevent refresh) - fix Curl_hostcache_clean - CURLOPT_RESOLVE entries don't have a special reference anymore, and it would also release non CURLOPT_RESOLVE references - fix locking in Curl_hostcache_clean - fix unit1305.c: hash now keeps a reference, need to set inuse = 1
2015-03-17checksrc: use space after commaDaniel Stenberg
2015-03-14hostip: Fix signal race in Curl_resolv_timeout.Tobias Stoeckmann
A signal handler for SIGALRM is installed in Curl_resolv_timeout. It is configured to interrupt system calls and uses siglongjmp to return into the function if alarm() goes off. The signal handler is installed before curl_jmpenv is initialized. This means that an already installed alarm timer could trigger the newly installed signal handler, leading to undefined behavior when it accesses the uninitialized curl_jmpenv. Even if there is no previously installed alarm available, the code in Curl_resolv_timeout itself installs an alarm before the environment is fully set up. If the process is sent into suspend right after that, the signal handler could be called too early as in previous scenario. To fix this, the signal handler should only be installed and the alarm timer only be set after sigsetjmp has been called.
2015-03-03mprintf.h: remove #ifdef CURLDEBUGDaniel Stenberg
... and as a consequence, introduce curl_printf.h with that re-define magic instead and make all libcurl code use that instead.
2015-01-07hostip: remove 'stale' argument from Curl_fetch_addr protoDaniel Stenberg
Also, remove the log output of the resolved name is NOT in the cache in the spirit of only telling when something is actually happening.
2014-12-27code/docs: Use correct case for IPv4 and IPv6Steve Holme
For consistency, as we seem to have a bit of a mixed bag, changed all instances of ipv4 and ipv6 in comments and documentations to use the correct case.
2014-08-31resolve: cache lookup for async resolversMichael Wallner
While waiting for a host resolve, check if the host cache may have gotten the name already (by someone else), for when the same name is resolved by several simultanoues requests. The resolver thread occasionally gets stuck in getaddrinfo() when the DNS or anything else is crappy or slow, so when a host is found in the DNS cache, leave the thread alone and let itself cleanup the mess.
2014-01-28hostip: don't remove DNS entries that are in useRomulo A. Ceccon
hostcache_timestamp_remove() should remove old *unused* entries from the host cache, but it never checked whether the entry was actually in use. This complements commit 030a2b8cb. Bug: http://curl.haxx.se/bug/view.cgi?id=1327
2013-11-25hostip: don't prune DNS cache entries that are in useDaniel Stenberg
When adding entries to the DNS cache with CURLOPT_RESOLVE, they are marked 'inuse' forever to prevent them from ever being removed in normal operations. Still, the code that pruned out-of-date DNS entries didn't care for the 'inuse' struct field and pruned it anyway! Reported-by: Romulo A. Ceccon Bug: http://curl.haxx.se/bug/view.cgi?id=1303
2013-08-08global dns cache: fix memory leakDaniel Stenberg
The take down of the global dns cache didn't take CURLOPT_RESOLVE names into account.
2013-08-08global dns cache: didn't work [regression]Daniel Stenberg
CURLOPT_DNS_USE_GLOBAL_CACHE broke in commit c43127414d89ccb (been broken since the libcurl 7.29.0 release). While this option has been documented as deprecated for almost a decade and nobody even reported this bug, it should remain functional. Added test case 1512 to verify
2013-01-09build: fix circular header inclusion with other packagesYang Tse
This commit renames lib/setup.h to lib/curl_setup.h and renames lib/setup_once.h to lib/curl_setup_once.h. Removes the need and usage of a header inclusion guard foreign to libcurl. [1] Removes the need and presence of an alarming notice we carried in old setup_once.h [2] ---------------------------------------- 1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H, this single inclusion guard is enough to ensure that inclusion of lib/setup_once.h done from lib/setup.h is only done once. Additionally lib/setup.h has always used __SETUP_ONCE_H macro to protect inclusion of setup_once.h even after commit ec691ca3, this was to avoid a circular header inclusion triggered when building a c-ares enabled version with c-ares sources available which also has a setup_once.h header. Commit ec691ca3 exposes the real nature of __SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard foreign to libcurl belonging to c-ares's setup_once.h The renaming this commit does, fixes the circular header inclusion, and as such removes the need and usage of a header inclusion guard foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl. 2 - Due to the circular interdependency of old lib/setup_once.h and the c-ares setup_once.h header, old file lib/setup_once.h has carried back from 2006 up to now days an alarming and prominent notice about the need of keeping libcurl's and c-ares's setup_once.h in sync. Given that this commit fixes the circular interdependency, the need and presence of mentioned notice is removed. All mentioned interdependencies come back from now old days when the c-ares project lived inside a curl subdirectory. This commit removes last traces of such fact.
2013-01-06Revert changes relative to lib/*.[ch] recent renamingYang Tse
This reverts renaming and usage of lib/*.h header files done 28-12-2012, reverting 2 commits: f871de0... build: make use of 76 lib/*.h renamed files ffd8e12... build: rename 76 lib/*.h files This also reverts removal of redundant include guard (redundant thanks to changes in above commits) done 2-12-2013, reverting 1 commit: c087374... curl_setup.h: remove redundant include guard This also reverts renaming and usage of lib/*.c source files done 3-12-2013, reverting 3 commits: 13606bb... build: make use of 93 lib/*.c renamed files 5b6e792... build: rename 93 lib/*.c files 7d83dff... build: commit 13606bbfde follow-up 1 Start of related discussion thread: http://curl.haxx.se/mail/lib-2013-01/0012.html Asking for confirmation on pushing this revertion commit: http://curl.haxx.se/mail/lib-2013-01/0048.html Confirmation summary: http://curl.haxx.se/mail/lib-2013-01/0079.html NOTICE: The list of 2 files that have been modified by other intermixed commits, while renamed, and also by at least one of the 6 commits this one reverts follows below. These 2 files will exhibit a hole in history unless git's '--follow' option is used when viewing logs. lib/curl_imap.h lib/curl_smtp.h
2013-01-03build: rename 93 lib/*.c filesYang Tse
93 lib/*.c source files renamed to use our standard naming scheme. This commit only does the file renaming. ---------------------------------------- renamed: lib/amigaos.c -> lib/curl_amigaos.c renamed: lib/asyn-ares.c -> lib/curl_asyn_ares.c renamed: lib/asyn-thread.c -> lib/curl_asyn_thread.c renamed: lib/axtls.c -> lib/curl_axtls.c renamed: lib/base64.c -> lib/curl_base64.c renamed: lib/bundles.c -> lib/curl_bundles.c renamed: lib/conncache.c -> lib/curl_conncache.c renamed: lib/connect.c -> lib/curl_connect.c renamed: lib/content_encoding.c -> lib/curl_content_encoding.c renamed: lib/cookie.c -> lib/curl_cookie.c renamed: lib/cyassl.c -> lib/curl_cyassl.c renamed: lib/dict.c -> lib/curl_dict.c renamed: lib/easy.c -> lib/curl_easy.c renamed: lib/escape.c -> lib/curl_escape.c renamed: lib/file.c -> lib/curl_file.c renamed: lib/fileinfo.c -> lib/curl_fileinfo.c renamed: lib/formdata.c -> lib/curl_formdata.c renamed: lib/ftp.c -> lib/curl_ftp.c renamed: lib/ftplistparser.c -> lib/curl_ftplistparser.c renamed: lib/getenv.c -> lib/curl_getenv.c renamed: lib/getinfo.c -> lib/curl_getinfo.c renamed: lib/gopher.c -> lib/curl_gopher.c renamed: lib/gtls.c -> lib/curl_gtls.c renamed: lib/hash.c -> lib/curl_hash.c renamed: lib/hmac.c -> lib/curl_hmac.c renamed: lib/hostasyn.c -> lib/curl_hostasyn.c renamed: lib/hostcheck.c -> lib/curl_hostcheck.c renamed: lib/hostip.c -> lib/curl_hostip.c renamed: lib/hostip4.c -> lib/curl_hostip4.c renamed: lib/hostip6.c -> lib/curl_hostip6.c renamed: lib/hostsyn.c -> lib/curl_hostsyn.c renamed: lib/http.c -> lib/curl_http.c renamed: lib/http_chunks.c -> lib/curl_http_chunks.c renamed: lib/http_digest.c -> lib/curl_http_digest.c renamed: lib/http_negotiate.c -> lib/curl_http_negotiate.c renamed: lib/http_negotiate_sspi.c -> lib/curl_http_negotiate_sspi.c renamed: lib/http_proxy.c -> lib/curl_http_proxy.c renamed: lib/idn_win32.c -> lib/curl_idn_win32.c renamed: lib/if2ip.c -> lib/curl_if2ip.c renamed: lib/imap.c -> lib/curl_imap.c renamed: lib/inet_ntop.c -> lib/curl_inet_ntop.c renamed: lib/inet_pton.c -> lib/curl_inet_pton.c renamed: lib/krb4.c -> lib/curl_krb4.c renamed: lib/krb5.c -> lib/curl_krb5.c renamed: lib/ldap.c -> lib/curl_ldap.c renamed: lib/llist.c -> lib/curl_llist.c renamed: lib/md4.c -> lib/curl_md4.c renamed: lib/md5.c -> lib/curl_md5.c renamed: lib/memdebug.c -> lib/curl_memdebug.c renamed: lib/mprintf.c -> lib/curl_mprintf.c renamed: lib/multi.c -> lib/curl_multi.c renamed: lib/netrc.c -> lib/curl_netrc.c renamed: lib/non-ascii.c -> lib/curl_non_ascii.c renamed: lib/curl_non-ascii.h -> lib/curl_non_ascii.h renamed: lib/nonblock.c -> lib/curl_nonblock.c renamed: lib/nss.c -> lib/curl_nss.c renamed: lib/nwlib.c -> lib/curl_nwlib.c renamed: lib/nwos.c -> lib/curl_nwos.c renamed: lib/openldap.c -> lib/curl_openldap.c renamed: lib/parsedate.c -> lib/curl_parsedate.c renamed: lib/pingpong.c -> lib/curl_pingpong.c renamed: lib/polarssl.c -> lib/curl_polarssl.c renamed: lib/pop3.c -> lib/curl_pop3.c renamed: lib/progress.c -> lib/curl_progress.c renamed: lib/qssl.c -> lib/curl_qssl.c renamed: lib/rawstr.c -> lib/curl_rawstr.c renamed: lib/rtsp.c -> lib/curl_rtsp.c renamed: lib/security.c -> lib/curl_security.c renamed: lib/select.c -> lib/curl_select.c renamed: lib/sendf.c -> lib/curl_sendf.c renamed: lib/share.c -> lib/curl_share.c renamed: lib/slist.c -> lib/curl_slist.c renamed: lib/smtp.c -> lib/curl_smtp.c renamed: lib/socks.c -> lib/curl_socks.c renamed: lib/socks_gssapi.c -> lib/curl_socks_gssapi.c renamed: lib/socks_sspi.c -> lib/curl_socks_sspi.c renamed: lib/speedcheck.c -> lib/curl_speedcheck.c renamed: lib/splay.c -> lib/curl_splay.c renamed: lib/ssh.c -> lib/curl_ssh.c renamed: lib/sslgen.c -> lib/curl_sslgen.c renamed: lib/ssluse.c -> lib/curl_ssluse.c renamed: lib/strdup.c -> lib/curl_strdup.c renamed: lib/strequal.c -> lib/curl_strequal.c renamed: lib/strerror.c -> lib/curl_strerror.c renamed: lib/strtok.c -> lib/curl_strtok.c renamed: lib/strtoofft.c -> lib/curl_strtoofft.c renamed: lib/telnet.c -> lib/curl_telnet.c renamed: lib/tftp.c -> lib/curl_tftp.c renamed: lib/timeval.c -> lib/curl_timeval.c renamed: lib/transfer.c -> lib/curl_transfer.c renamed: lib/url.c -> lib/curl_url.c renamed: lib/version.c -> lib/curl_version.c renamed: lib/warnless.c -> lib/curl_warnless.c renamed: lib/wildcard.c -> lib/curl_wildcard.c ----------------------------------------
2013-01-03build: make use of 93 lib/*.c renamed filesYang Tse
93 *.c source files renamed to use our standard naming scheme. This change affects 77 files in libcurl's source tree.
2012-12-28build: make use of 76 lib/*.h renamed filesYang Tse
76 private header files renamed to use our standard naming scheme. This change affects 322 files in libcurl's source tree.
2012-12-14setup_once.h: refactor inclusion of <unistd.h> and <sys/socket.h>Yang Tse
Inclusion of top two most included header files now done in setup_once.h
2012-11-18fixed memory leak: CURLOPT_RESOLVE with multi interfaceDaniel Stenberg
DNS cache entries populated with CURLOPT_RESOLVE were not properly freed again when done using the multi interface. Test case 1502 added to verify. Bug: http://curl.haxx.se/bug/view.cgi?id=3575448 Reported by: Alex Gruz
2012-01-02hostip.c: fix potential write past the end of string bufferYang Tse
2012-01-02hostip.c: fix Curl_loadhostpairs() OOM handlingYang Tse
2011-12-31create_hostcache_id: use the key lower casedDaniel Stenberg
... to make sure the DNS cache is properly case insensitive
2011-12-31CURLOPT_RESOLVE: avoid adding already present host namesDaniel Stenberg
The load host names to DNS cache function was moved to hostip.c and it now makes sure to not add host names that already are present in the cache. It would previously lead to memory leaks when for example using the --resolve and multiple URLs on the command line.
2011-12-23resolve: don't leak pre-populated dns entriesDaniel Stenberg
CURLOPT_RESOLVE populates the DNS cache with entries that are marked as eternally in use. Those entries need to be taken care of when the cache is killed off. Bug: http://curl.haxx.se/bug/view.cgi?id=3463121 Reported by: "tw84452852"
2011-09-01hostip.c: return immediately from Curl_resolv_timeout() upon expired timeout.Yang Tse
Ensure existing logic in Curl_resolv_timeout() is not subverted upon getting a negative timeout from resolve_server(). The timeout in resolve_server() could be checked to avoid calling Curl_resolv_timeout() with an expired timeout, but fixing this in this way allows existing logic in resolve_server() to be kept unchanged.
2011-07-26stdio.h, stdlib.h, string.h, stdarg.h and ctype.h inclusion done in setup_once.hYang Tse
2011-04-27whitespace cleanup: no space first in conditionalsDaniel Stenberg
"if(a)" is our style, not "if( a )"
2011-04-27source cleanup: unify look, style and indent levelsDaniel Stenberg
By the use of a the new lib/checksrc.pl script that checks that our basic source style rules are followed.
2011-04-25hostip: comment fixed to state current situationDaniel Stenberg
2011-04-25async resolvers: further cleanupsDaniel Stenberg
asyn-ares.c and asyn-thread.c are two separate backends that implement the same (internal) async resolver API for libcurl to use. Backend is specified at build time. The internal resolver API is defined in asyn.h for asynch resolvers.
2010-12-01fix compiler warning: conversion may lose significant bitsYang Tse
2010-11-26hostip: edit commentYang Tse
2010-11-11ip_version: moved to connection structDaniel Stenberg
The IP version choice was previously only in the UserDefined struct within the SessionHandle, but since we sometimes alter that option during a request we need to have it on a per-connection basis. I also moved more "init conn" code into the allocate_conn() function which is designed for that purpose more or less.
2010-11-08CURLOPT_RESOLVE: addedDaniel Stenberg
CURLOPT_RESOLVE is a new option that sends along a curl_slist with name:port:address sets that will populate the DNS cache with entries so that request can be "fooled" to use another host than what otherwise would've been used. Previously we've encouraged the use of Host: for that when dealing with HTTP, but this new feature has the added bonus that it allows the name from the URL to be used for TLS SNI and server certificate name checks as well. This is a first change. Surely more will follow to make it decent.
2010-04-13fix compiler warning: variable might be clobbered by longjmp or vforkYang Tse
2010-04-04simplify code of Curl_resolv_timeout()Kamil Dudka
2010-04-04eliminate a race condition in Curl_resolv_timeout()Kamil Dudka
2010-03-24avoid compiler warning without USE_ALARM_TIMEOUTDaniel Stenberg
2010-03-24remove the CVSish $Id$ linesDaniel Stenberg
2010-03-22fix the alarm()-based DNS timeoutThomas Lopatic
Looking at the code of Curl_resolv_timeout() in hostip.c, I think that in case of a timeout, the signal handler for SIGALRM never gets removed. I think that in my case it gets executed at some point later on when execution has long left Curl_resolv_timeout() or even the cURL library. The code that is jumped to with siglongjmp() simply sets the error message to "name lookup timed out" and then returns with CURLRESOLV_ERROR. I guess that instead of simply returning without cleaning up, the code should have a goto that jumps to the spot right after the call to Curl_resolv().
2010-01-23adjust preprocessor symbol definition check relative to resolver specialtyYang Tse
2010-01-22wrap long lines and do some indent policingDaniel Stenberg
2010-01-22Constantine Sapuntzakis refactoring of async callbacks, allowingYang Tse
removal of Curl_addrinfo_copy(), Curl_addrinfo6_callback(), and Curl_addrinfo4_callback()
2009-12-30VMS specific preprocessor symbol checking adjustmentsYang Tse
2009-11-18Make usage of calloc()'s arguments consistent with rest of code baseYang Tse
2009-11-12Constantine Sapuntzakis patch for hostip.cYang Tse
No need for a separate variable ndns. The memory leak detection will detect code that fails to release a dns reference. The DEBUGASSERT will detect code that releases too many references.
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