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Commit Graph

276 Commits

Author SHA1 Message Date
Daniel Stenberg
b228d2952b checksrc: stricter no-space-before-paren enforcement
In order to make the code style more uniform everywhere
2016-12-13 23:39:11 +01:00
Marcel Raad
21aa32d30d lib: fix compiler warnings after de4de4e3c7
Visual C++ now complains about implicitly casting time_t (64-bit) to
long (32-bit). Fix this by changing some variables from long to time_t,
or explicitly casting to long where the public interface would be
affected.

Closes #1131
2016-11-18 10:11:55 +01:00
Andreas Streichardt
eb5199317e resolve: add error message when resolving using SIGALRM
Closes #1066
2016-10-10 14:14:20 +02:00
Daniel Stenberg
434f8d0389 internals: rename the SessionHandle struct to Curl_easy 2016-06-22 10:28:41 +02:00
Daniel Stenberg
4f45240bc8 lib: include curl_printf.h as one of the last headers
curl_printf.h defines printf to curl_mprintf, etc. This can cause
problems with external headers which may use
__attribute__((format(printf, ...))) markers etc.

To avoid that they cause problems with system includes, we include
curl_printf.h after any system headers. That makes the three last
headers to always be, and we keep them in this order:

 curl_printf.h
 curl_memory.h
 memdebug.h

None of them include system headers, they all do funny #defines.

Reported-by: David Benjamin

Fixes #743
2016-04-29 22:32:49 +02:00
Daniel Stenberg
a71012c03e code: style updates 2016-04-03 22:38:36 +02:00
Daniel Stenberg
2505fbbdb5 hostip.c: minor white space edit for style 2016-03-29 15:19:21 +02:00
Daniel Stenberg
4af40b3646 URLs: change all http:// URLs to https:// 2016-02-03 00:19:02 +01:00
Anthony Avina
4883f7019d hostip: fix unintended destruction of hash table
.. and added unit1602 for hash.c
2015-05-18 11:15:43 +02:00
Daniel Stenberg
b419e7ae0c hostcache: made all host caches use structs, not pointers
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.
2015-05-12 09:46:53 +02:00
Daniel Stenberg
81ee1e69fe hostip: fix compiler warnings
introduced in the previous mini-series of 3 commits
2015-04-03 23:41:58 +02:00
Stefan Bühler
846f492053 actually implement CURLOPT_RESOLVE removals
- also log when a CURLOPT_RESOLVE entry couldn't get parsed
2015-04-03 16:46:14 +02:00
Stefan Bühler
b4be97fb67 move Curl_share_lock and ref counting into Curl_fetch_addr 2015-04-03 16:46:14 +02:00
Stefan Bühler
0db831976e fix refreshing of obsolete dns cache entries
- 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
2015-04-03 16:46:14 +02:00
Daniel Stenberg
9395999543 checksrc: use space after comma 2015-03-17 13:57:37 +01:00
Tobias Stoeckmann
851c29269b hostip: Fix signal race in Curl_resolv_timeout.
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.
2015-03-14 18:24:11 +01:00
Daniel Stenberg
df5578a7a3 mprintf.h: remove #ifdef CURLDEBUG
... and as a consequence, introduce curl_printf.h with that re-define
magic instead and make all libcurl code use that instead.
2015-03-03 12:36:18 +01:00
Daniel Stenberg
9547954978 hostip: remove 'stale' argument from Curl_fetch_addr proto
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.
2015-01-07 14:06:12 +00:00
Steve Holme
151ae59436 code/docs: Use correct case for IPv4 and IPv6
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.
2014-12-27 11:31:55 +00:00
Michael Wallner
09b5a99816 resolve: cache lookup for async resolvers
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.
2014-08-31 10:49:40 +02:00
Romulo A. Ceccon
31860ab8c8 hostip: don't remove DNS entries that are in use
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
2014-01-28 22:25:48 +01:00
Daniel Stenberg
030a2b8cb8 hostip: don't prune DNS cache entries that are in use
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
2013-11-25 00:10:23 +01:00
Daniel Stenberg
d20def2046 global dns cache: fix memory leak
The take down of the global dns cache didn't take CURLOPT_RESOLVE names
into account.
2013-08-08 16:28:46 +02:00
Daniel Stenberg
d2b36e466a global dns cache: didn't work [regression]
CURLOPT_DNS_USE_GLOBAL_CACHE broke in commit c43127414d (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
2013-08-08 16:28:46 +02:00
Yang Tse
5a053ffe80 build: fix circular header inclusion with other packages
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.
2013-01-09 00:49:50 +01:00
Yang Tse
4a5aa6682d Revert changes relative to lib/*.[ch] recent renaming
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
2013-01-06 18:20:27 +01:00
Yang Tse
5b6e7927c6 build: rename 93 lib/*.c files
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

----------------------------------------
2013-01-03 06:13:18 +01:00
Yang Tse
13606bbfde build: make use of 93 lib/*.c renamed files
93 *.c source files renamed to use our standard naming scheme.

This change affects 77 files in libcurl's source tree.
2013-01-03 05:50:26 +01:00
Yang Tse
f871de0064 build: make use of 76 lib/*.h renamed files
76 private header files renamed to use our standard naming scheme.

This change affects 322 files in libcurl's source tree.
2012-12-28 19:37:11 +01:00
Yang Tse
a0b207164c setup_once.h: refactor inclusion of <unistd.h> and <sys/socket.h>
Inclusion of top two most included header files now done in setup_once.h
2012-12-14 17:38:18 +01:00
Daniel Stenberg
409f2a041f fixed memory leak: CURLOPT_RESOLVE with multi interface
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
2012-11-18 16:39:31 +01:00
Yang Tse
cc69e56ce3 hostip.c: fix potential write past the end of string buffer 2012-01-02 13:44:56 +01:00
Yang Tse
8e25d1b93b hostip.c: fix Curl_loadhostpairs() OOM handling 2012-01-02 13:41:09 +01:00
Daniel Stenberg
81ebdd9e28 create_hostcache_id: use the key lower cased
... to make sure the DNS cache is properly case insensitive
2011-12-31 10:58:05 +01:00
Daniel Stenberg
5e0a44e4d5 CURLOPT_RESOLVE: avoid adding already present host names
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.
2011-12-31 10:45:27 +01:00
Daniel Stenberg
2caa454dc1 resolve: don't leak pre-populated dns entries
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"
2011-12-23 14:46:20 +01:00
Yang Tse
f2285a6d39 hostip.c: return immediately from Curl_resolv_timeout() upon expired timeout.
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.
2011-09-01 17:09:46 +02:00
Yang Tse
f1586cb477 stdio.h, stdlib.h, string.h, stdarg.h and ctype.h inclusion done in setup_once.h 2011-07-26 17:23:27 +02:00
Daniel Stenberg
889d1e973f whitespace cleanup: no space first in conditionals
"if(a)" is our style, not "if( a )"
2011-04-27 09:09:35 +02:00
Daniel Stenberg
b903186fa0 source cleanup: unify look, style and indent levels
By the use of a the new lib/checksrc.pl script that checks that our
basic source style rules are followed.
2011-04-27 09:09:35 +02:00
Daniel Stenberg
e9542ccab6 hostip: comment fixed to state current situation 2011-04-25 19:50:56 +02:00
Daniel Stenberg
7de2f9271c async resolvers: further cleanups
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.
2011-04-25 19:47:16 +02:00
Yang Tse
7e3f0bffe5 fix compiler warning: conversion may lose significant bits 2010-12-01 23:33:43 +01:00
Yang Tse
c9081a8280 hostip: edit comment 2010-11-26 18:18:26 +01:00
Daniel Stenberg
a1f32ffee5 ip_version: moved to connection struct
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.
2010-11-11 15:16:21 +01:00
Daniel Stenberg
1b24b89cca CURLOPT_RESOLVE: added
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.
2010-11-08 08:56:21 +01:00
Yang Tse
6432fafa1a fix compiler warning: variable might be clobbered by longjmp or vfork 2010-04-13 16:34:13 +02:00
Kamil Dudka
7425db3fab simplify code of Curl_resolv_timeout() 2010-04-04 23:35:21 +02:00
Kamil Dudka
64ac64e783 eliminate a race condition in Curl_resolv_timeout() 2010-04-04 23:34:24 +02:00
Daniel Stenberg
c245a8f92e avoid compiler warning without USE_ALARM_TIMEOUT 2010-03-24 17:00:20 +01:00