A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
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Stefan Eissing bcd94e2750
socks: use dns filter for resolving
Use a dns connection filter to resolve hostnames where their addresses
are locally resolved and forwarded to the SOCKS proxy.

This makes all improvements, like in #21295 for example, also apply
to socks connections. Curl_resolv() is now only called from a DNS
filter.

(ftp still calls Curl_resolv_blocking() in two places, one of which
 may be replaceable with a DNS filter as well to remove the block, tbd)

Closes #21297
2026-04-14 16:48:20 +02:00
.circleci runtests: detect bad libssh differently for test 1459 (fixing CircleCI libssh job) 2025-11-16 23:28:44 +01:00
.github GHA: update dependency google/boringssl to v0.20260413.0 2026-04-14 11:04:10 +02:00
CMake tidy-up: miscellaneous 2026-04-14 01:08:32 +02:00
docs KNOWN_BUGS: Native CA roots incomplete on Windows with OpenSSL/fork 2026-04-14 02:20:16 +02:00
include clang-tidy: enable more checks, fix fallouts 2026-04-14 02:20:16 +02:00
lib socks: use dns filter for resolving 2026-04-14 16:48:20 +02:00
LICENSES spacecheck: check long lines and repeat spaces, fix fallouts 2026-03-25 11:02:08 +01:00
m4 tidy-up: miscellaneous 2026-04-14 01:08:32 +02:00
projects OS400: add new definitions to the ILE/RPG binding. 2026-03-24 09:27:48 +01:00
scripts tidy-up: miscellaneous 2026-04-14 01:08:32 +02:00
src clang-tidy: enable more checks, fix fallouts 2026-04-14 02:20:16 +02:00
tests tests: use %b64[] instead of "raw" base64 2026-04-14 16:18:14 +02:00
.clang-tidy.yml clang-tidy: enable more checks, fix fallouts 2026-04-14 02:20:16 +02:00
.dir-locals.el copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
.editorconfig .editorconfig: add 2025-09-02 08:36:40 +02:00
.git-blame-ignore-revs copyright: update all copyright lines and remove year ranges 2023-01-03 09:19:21 +01:00
.gitattributes buildconf: remove 2026-04-04 11:35:24 +02:00
.gitignore build: drop the winbuild build system 2025-09-20 01:20:25 +02:00
.mailmap tool: fix two more allocator mismatches 2026-03-30 16:17:42 +02:00
acinclude.m4 configure: tidy up comments 2026-04-10 23:19:41 +02:00
appveyor.sh cmake: drop support for CMake 3.17 and older 2026-03-21 13:24:47 +01:00
appveyor.yml cmake: drop support for CMake 3.17 and older 2026-03-21 13:24:47 +01:00
CHANGES.md CHANGES: fix typo in filename 2026-01-01 12:20:10 +01:00
CMakeLists.txt build: skip detecting pipe2() for Apple targets 2026-04-08 23:32:25 +02:00
configure.ac configure: tidy up comments 2026-04-10 23:19:41 +02:00
COPYING COPYING: bump copyright year range to 1996 - 2026 2026-01-08 23:19:44 +01:00
curl-config.in autotools: tidy-up if expressions 2025-12-10 22:29:19 +01:00
Dockerfile Dockerfile: update debian:bookworm-slim Docker digest to 4724b8c 2026-04-07 07:50:19 +02:00
GIT-INFO.md REUSE: add copyright header to two files 2025-11-03 16:08:52 +01:00
libcurl.pc.in configure: do not echo most inherited LDFLAGS to config files 2024-11-14 09:55:45 +01:00
Makefile.am rtmp: drop support 2026-03-21 14:56:06 +01:00
README BUG-BOUNTY.md: we stop the bug-bounty end of Jan 2026 2026-01-26 08:26:28 +01:00
README.md rtmp: drop support 2026-03-21 14:56:06 +01:00
RELEASE-NOTES RELEASE-NOTES: synced 2026-04-13 08:08:19 +02:00
renovate.json renovate: merge two custom regex rules, escape dots 2026-01-23 15:58:16 +01:00
REUSE.toml badwords: avoid 'simply' 2026-03-10 19:34:06 +01:00
SECURITY.md stop using the word 'just' 2026-03-03 15:30:22 +01:00

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curl is a command-line tool for transferring data from or to a server using URLs. It supports these protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS.

Learn how to use curl by reading the man page or everything curl.

Find out how to install curl by reading the INSTALL document.

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