844 строки
30 KiB
Plaintext
844 строки
30 KiB
Plaintext
_ _ ____ _
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/ __| | | | |_) | |
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| (__| |_| | _ <| |___
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\___|\___/|_| \_\_____|
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Known Bugs
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These are problems and bugs known to exist at the time of this release. Feel
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free to join in and help us correct one or more of these. Also be sure to
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check the changelog of the current development status, as one or more of these
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problems may have been fixed or changed somewhat since this was written.
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1. HTTP
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1.5 Expect-100 meets 417
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2. TLS
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2.3 Unable to use PKCS12 certificate with Secure Transport
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2.4 Secure Transport will not import PKCS#12 client certificates without a password
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2.5 Client cert handling with Issuer DN differs between backends
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2.7 Client cert (MTLS) issues with Schannel
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2.8 Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname
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2.9 TLS session cache does not work with TFO
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2.11 Schannel TLS 1.2 handshake bug in old Windows versions
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2.12 FTPS with Schannel times out file list operation
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2.13 CURLOPT_CERTINFO results in CURLE_OUT_OF_MEMORY with Schannel
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2.15 Renegotiate from server may cause hang for OpenSSL backend
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3. Email protocols
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3.1 IMAP SEARCH ALL truncated response
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3.2 No disconnect command
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3.3 POP3 expects "CRLF.CRLF" eob for some single-line responses
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3.4 AUTH PLAIN for SMTP is not working on all servers
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4. Command line
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4.1 -J and -O with %-encoded file names
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4.2 -J with -C - fails
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4.3 --retry and transfer timeouts
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5. Build and portability issues
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5.1 OS400 port requires deprecated IBM library
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5.2 curl-config --libs contains private details
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5.3 curl compiled on OSX 10.13 failed to run on OSX 10.10
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5.5 cannot handle Unicode arguments in non-Unicode builds on Windows
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5.6 make distclean loops forever
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5.8 configure finding libs in wrong directory
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5.9 Utilize Requires.private directives in libcurl.pc
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5.10 curl hangs on SMB upload over stdin
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5.11 configure --with-gssapi with Heimdal is ignored on macOS
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5.12 flaky Windows CI builds
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5.13 long paths are not fully supported on Windows
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5.14 Windows Unicode builds use homedir in current locale
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6. Authentication
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6.1 NTLM authentication and unicode
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6.2 MIT Kerberos for Windows build
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6.3 NTLM in system context uses wrong name
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6.4 Negotiate and Kerberos V5 need a fake user name
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6.5 NTLM does not support password with § character
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6.6 libcurl can fail to try alternatives with --proxy-any
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6.7 Do not clear digest for single realm
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6.9 SHA-256 digest not supported in Windows SSPI builds
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6.10 curl never completes Negotiate over HTTP
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6.11 Negotiate on Windows fails
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6.12 cannot use Secure Transport with Crypto Token Kit
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6.13 Negotiate against Hadoop HDFS
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7. FTP
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7.3 FTP with NOBODY and FAILONERROR
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7.4 FTP with ACCT
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7.5 ASCII FTP
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7.9 Passive transfer tries only one IP address
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7.10 FTPS needs session reuse
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7.11 FTPS upload data loss with TLS 1.3
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7.12 FTPS directory listing hangs on Windows with Schannel
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9. SFTP and SCP
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9.1 SFTP does not do CURLOPT_POSTQUOTE correct
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9.2 wolfssh: publickey auth does not work
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9.3 Remote recursive folder creation with SFTP
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9.4 libssh blocking and infinite loop problem
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10. SOCKS
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10.3 FTPS over SOCKS
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11. Internals
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11.1 Curl leaks .onion hostnames in DNS
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11.2 error buffer not set if connection to multiple addresses fails
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11.4 HTTP test server 'connection-monitor' problems
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11.5 Connection information when using TCP Fast Open
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11.7 signal-based resolver timeouts
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11.8 DoH leaks memory after followlocation
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11.9 DoH does not inherit all transfer options
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11.10 Blocking socket operations in non-blocking API
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11.11 A shared connection cache is not thread-safe
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11.15 CURLOPT_OPENSOCKETPAIRFUNCTION is missing
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11.16 libcurl uses renames instead of locking for atomic operations
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12. LDAP
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12.1 OpenLDAP hangs after returning results
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12.2 LDAP on Windows does authentication wrong?
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12.3 LDAP on Windows does not work
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12.4 LDAPS with NSS is slow
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13. TCP/IP
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13.2 Trying local ports fails on Windows
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15. CMake
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15.2 support build with GnuTLS
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15.3 unusable tool_hugehelp.c with MinGW
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15.4 build docs/curl.1
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15.5 build on Linux links libcurl to libdl
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15.6 uses -lpthread instead of Threads::Threads
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15.7 generated .pc file contains strange entries
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15.8 libcurl.pc uses absolute library paths
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15.9 cert paths autodetected when cross-compiling
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15.10 libpsl is not supported
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15.11 ExternalProject_Add does not set CURL_CA_PATH
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15.12 cannot enable LDAPS on Windows
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15.13 CMake build with MIT Kerberos does not work
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16. Applications
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17. HTTP/2
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17.1 Excessive HTTP/2 packets with TCP_NODELAY
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17.2 HTTP/2 frames while in the connection pool kill reuse
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17.3 ENHANCE_YOUR_CALM causes infinite retries
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17.4 Connection failures with parallel HTTP/2
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17.5 HTTP/2 connections through HTTPS proxy frequently stall
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18. HTTP/3
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18.1 If the HTTP/3 server closes connection during upload curl hangs
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18.2 Transfer closed with n bytes remaining to read
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18.4 timeout when reusing an http3 connection
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18.9 connection migration does not work
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==============================================================================
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1. HTTP
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1.5 Expect-100 meets 417
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If an upload using Expect: 100-continue receives an HTTP 417 response, it
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ought to be automatically resent without the Expect:. A workaround is for
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the client application to redo the transfer after disabling Expect:.
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https://curl.se/mail/archive-2008-02/0043.html
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2. TLS
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2.3 Unable to use PKCS12 certificate with Secure Transport
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See https://github.com/curl/curl/issues/5403
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2.4 Secure Transport will not import PKCS#12 client certificates without a password
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libcurl calls SecPKCS12Import with the PKCS#12 client certificate, but that
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function rejects certificates that do not have a password.
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https://github.com/curl/curl/issues/1308
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2.5 Client cert handling with Issuer DN differs between backends
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When the specified client certificate does not match any of the
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server-specified DNs, the OpenSSL and GnuTLS backends behave differently.
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The github discussion may contain a solution.
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See https://github.com/curl/curl/issues/1411
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2.7 Client cert (MTLS) issues with Schannel
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See https://github.com/curl/curl/issues/3145
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2.8 Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname
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This seems to be a limitation in the underlying Schannel API.
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https://github.com/curl/curl/issues/3284
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2.9 TLS session cache does not work with TFO
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See https://github.com/curl/curl/issues/4301
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2.11 Schannel TLS 1.2 handshake bug in old Windows versions
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In old versions of Windows such as 7 and 8.1 the Schannel TLS 1.2 handshake
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implementation likely has a bug that can rarely cause the key exchange to
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fail, resulting in error SEC_E_BUFFER_TOO_SMALL or SEC_E_MESSAGE_ALTERED.
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https://github.com/curl/curl/issues/5488
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2.12 FTPS with Schannel times out file list operation
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"Instead of the command completing, it just sits there until the timeout
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expires." - the same command line seems to work with other TLS backends and
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other operating systems. See https://github.com/curl/curl/issues/5284.
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2.13 CURLOPT_CERTINFO results in CURLE_OUT_OF_MEMORY with Schannel
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https://github.com/curl/curl/issues/8741
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2.15 Renegotiate from server may cause hang for OpenSSL backend
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A race condition has been observed when, immediately after the initial
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handshake, curl has sent an HTTP request to the server and at the same time
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the server has sent a TLS hello request (renegotiate) to curl. Both are
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waiting for the other to respond. OpenSSL is supposed to send a handshake
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response but does not.
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https://github.com/curl/curl/issues/6785
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https://github.com/openssl/openssl/issues/14722
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3. Email protocols
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3.1 IMAP SEARCH ALL truncated response
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IMAP "SEARCH ALL" truncates output on large boxes. "A quick search of the
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code reveals that pingpong.c contains some truncation code, at line 408, when
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it deems the server response to be too large truncating it to 40 characters"
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https://curl.se/bug/view.cgi?id=1366
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3.2 No disconnect command
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The disconnect commands (LOGOUT and QUIT) may not be sent by IMAP, POP3 and
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SMTP if a failure occurs during the authentication phase of a connection.
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3.3 POP3 expects "CRLF.CRLF" eob for some single-line responses
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You have to tell libcurl not to expect a body, when dealing with one line
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response commands. Please see the POP3 examples and test cases which show
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this for the NOOP and DELE commands. https://curl.se/bug/?i=740
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3.4 AUTH PLAIN for SMTP is not working on all servers
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Specifying "--login-options AUTH=PLAIN" on the command line does not seem to
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work correctly.
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See https://github.com/curl/curl/issues/4080
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4. Command line
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4.1 -J and -O with %-encoded file names
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-J/--remote-header-name does not decode %-encoded file names. RFC6266 details
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how it should be done. The can of worm is basically that we have no charset
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handling in curl and ascii >=128 is a challenge for us. Not to mention that
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decoding also means that we need to check for nastiness that is attempted,
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like "../" sequences and the like. Probably everything to the left of any
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embedded slashes should be cut off.
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https://curl.se/bug/view.cgi?id=1294
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-O also does not decode %-encoded names, and while it has even less
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information about the charset involved the process is similar to the -J case.
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Note that we will not add decoding to -O without the user asking for it with
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some other means as well, since -O has always been documented to use the name
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exactly as specified in the URL.
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4.2 -J with -C - fails
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When using -J (with -O), automatically resumed downloading together with "-C
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-" fails. Without -J the same command line works. This happens because the
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resume logic is worked out before the target file name (and thus its
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pre-transfer size) has been figured out.
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https://curl.se/bug/view.cgi?id=1169
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4.3 --retry and transfer timeouts
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If using --retry and the transfer timeouts (possibly due to using -m or
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-y/-Y) the next attempt does not resume the transfer properly from what was
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downloaded in the previous attempt but will truncate and restart at the
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original position where it was at before the previous failed attempt. See
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https://curl.se/mail/lib-2008-01/0080.html and Mandriva bug report
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https://qa.mandriva.com/show_bug.cgi?id=22565
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5. Build and portability issues
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5.1 OS400 port requires deprecated IBM library
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curl for OS400 requires QADRT to build, which provides ASCII wrappers for
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libc/POSIX functions in the ILE, but IBM no longer supports or even offers
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this library to download.
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See https://github.com/curl/curl/issues/5176
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5.2 curl-config --libs contains private details
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"curl-config --libs" will include details set in LDFLAGS when configure is
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run that might be needed only for building libcurl. Further, curl-config
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--cflags suffers from the same effects with CFLAGS/CPPFLAGS.
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5.3 curl compiled on OSX 10.13 failed to run on OSX 10.10
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See https://github.com/curl/curl/issues/2905
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5.5 cannot handle Unicode arguments in non-Unicode builds on Windows
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If a URL or filename cannot be encoded using the user's current codepage then
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it can only be encoded properly in the Unicode character set. Windows uses
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UTF-16 encoding for Unicode and stores it in wide characters, however curl
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and libcurl are not equipped for that at the moment except when built with
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_UNICODE and UNICODE defined. And, except for Cygwin, Windows cannot use UTF-8
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as a locale.
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https://curl.se/bug/?i=345
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https://curl.se/bug/?i=731
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https://curl.se/bug/?i=3747
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5.6 make distclean loops forever
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Due to an issue (probably) in automake, "make distclean" can end up in a
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never-ending loop.
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See https://github.com/curl/curl/issues/7716
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5.8 configure finding libs in wrong directory
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When the configure script checks for third-party libraries, it adds those
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directories to the LDFLAGS variable and then tries linking to see if it
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works. When successful, the found directory is kept in the LDFLAGS variable
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when the script continues to execute and do more tests and possibly check for
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more libraries.
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This can make subsequent checks for libraries wrongly detect another
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installation in a directory that was previously added to LDFLAGS by another
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library check.
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A possibly better way to do these checks would be to keep the pristine LDFLAGS
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even after successful checks and instead add those verified paths to a
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separate variable that only after all library checks have been performed gets
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appended to LDFLAGS.
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5.9 Utilize Requires.private directives in libcurl.pc
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https://github.com/curl/curl/issues/864
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5.10 curl hangs on SMB upload over stdin
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See https://github.com/curl/curl/issues/7896
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5.11 configure --with-gssapi with Heimdal is ignored on macOS
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... unless you also pass --with-gssapi-libs
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https://github.com/curl/curl/issues/3841
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5.12 flaky Windows CI builds
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We run many CI builds for each commit and PR on github, and especially a
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number of the Windows builds are flaky. This means that we rarely get all CI
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builds go green and complete without errors. This is unfortunate as it makes
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us sometimes miss actual build problems and it is surprising to newcomers to
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the project who (rightfully) do not expect this.
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See https://github.com/curl/curl/issues/6972
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5.13 long paths are not fully supported on Windows
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curl on Windows cannot access long paths (paths longer than 260 characters).
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However, as a workaround, the Windows path prefix \\?\ which disables all path
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interpretation may work to allow curl to access the path. For example:
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\\?\c:\longpath.
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See https://github.com/curl/curl/issues/8361
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5.14 Windows Unicode builds use homedir in current locale
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The Windows Unicode builds of curl use the current locale, but expect Unicode
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UTF-8 encoded paths for internal use such as open, access and stat. The user's
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home directory is retrieved via curl_getenv in the current locale and not as
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UTF-8 encoded Unicode.
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See https://github.com/curl/curl/pull/7252 and
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https://github.com/curl/curl/pull/7281
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6. Authentication
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6.1 NTLM authentication and unicode
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NTLM authentication involving unicode user name or password only works
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properly if built with UNICODE defined together with the Schannel
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backend. The original problem was mentioned in:
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https://curl.se/mail/lib-2009-10/0024.html
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https://curl.se/bug/view.cgi?id=896
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The Schannel version verified to work as mentioned in
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https://curl.se/mail/lib-2012-07/0073.html
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6.2 MIT Kerberos for Windows build
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libcurl fails to build with MIT Kerberos for Windows (KfW) due to KfW's
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library header files exporting symbols/macros that should be kept private to
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the KfW library. See ticket #5601 at https://krbdev.mit.edu/rt/
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6.3 NTLM in system context uses wrong name
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NTLM authentication using SSPI (on Windows) when (lib)curl is running in
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"system context" will make it use wrong(?) user name - at least when compared
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to what winhttp does. See https://curl.se/bug/view.cgi?id=535
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6.4 Negotiate and Kerberos V5 need a fake user name
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In order to get Negotiate (SPNEGO) authentication to work in HTTP or Kerberos
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V5 in the email protocols, you need to provide a (fake) user name (this
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concerns both curl and the lib) because the code wrongly only considers
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authentication if there's a user name provided by setting
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conn->bits.user_passwd in url.c https://curl.se/bug/view.cgi?id=440 How?
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https://curl.se/mail/lib-2004-08/0182.html A possible solution is to
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either modify this variable to be set or introduce a variable such as
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new conn->bits.want_authentication which is set when any of the authentication
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options are set.
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6.5 NTLM does not support password with § character
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https://github.com/curl/curl/issues/2120
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6.6 libcurl can fail to try alternatives with --proxy-any
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When connecting via a proxy using --proxy-any, a failure to establish an
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authentication will cause libcurl to abort trying other options if the
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failed method has a higher preference than the alternatives. As an example,
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--proxy-any against a proxy which advertise Negotiate and NTLM, but which
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fails to set up Kerberos authentication will not proceed to try authentication
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using NTLM.
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https://github.com/curl/curl/issues/876
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6.7 Do not clear digest for single realm
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https://github.com/curl/curl/issues/3267
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6.9 SHA-256 digest not supported in Windows SSPI builds
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Windows builds of curl that have SSPI enabled use the native Windows API calls
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to create authentication strings. The call to InitializeSecurityContext fails
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with SEC_E_QOP_NOT_SUPPORTED which causes curl to fail with CURLE_AUTH_ERROR.
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Microsoft does not document supported digest algorithms and that SEC_E error
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code is not a documented error for InitializeSecurityContext (digest).
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https://github.com/curl/curl/issues/6302
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6.10 curl never completes Negotiate over HTTP
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Apparently it is not working correctly...?
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See https://github.com/curl/curl/issues/5235
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6.11 Negotiate on Windows fails
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When using --negotiate (or NTLM) with curl on Windows, SSL/TLS handshake
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fails despite having a valid kerberos ticket cached. Works without any issue
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in Unix/Linux.
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https://github.com/curl/curl/issues/5881
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6.12 cannot use Secure Transport with Crypto Token Kit
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https://github.com/curl/curl/issues/7048
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6.13 Negotiate authentication against Hadoop HDFS
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https://github.com/curl/curl/issues/8264
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7. FTP
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7.3 FTP with NOBODY and FAILONERROR
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It seems sensible to be able to use CURLOPT_NOBODY and CURLOPT_FAILONERROR
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with FTP to detect if a file exists or not, but it is not working:
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https://curl.se/mail/lib-2008-07/0295.html
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7.4 FTP with ACCT
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When doing an operation over FTP that requires the ACCT command (but not when
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logging in), the operation will fail since libcurl does not detect this and
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thus fails to issue the correct command:
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https://curl.se/bug/view.cgi?id=635
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7.5 ASCII FTP
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FTP ASCII transfers do not follow RFC959. They do not convert the data
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accordingly (not for sending nor for receiving). RFC 959 section 3.1.1.1
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clearly describes how this should be done:
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The sender converts the data from an internal character representation to
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the standard 8-bit NVT-ASCII representation (see the Telnet
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specification). The receiver will convert the data from the standard
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form to his own internal form.
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|
Since 7.15.4 at least line endings are converted.
|
|
|
|
7.9 Passive transfer tries only one IP address
|
|
|
|
When doing FTP operations through a proxy at localhost, the reported spotted
|
|
that curl only tried to connect once to the proxy, while it had multiple
|
|
addresses and a failed connect on one address should make it try the next.
|
|
|
|
After switching to passive mode (EPSV), curl should try all IP addresses for
|
|
"localhost". Currently it tries ::1, but it should also try 127.0.0.1.
|
|
|
|
See https://github.com/curl/curl/issues/1508
|
|
|
|
7.10 FTPS needs session reuse
|
|
|
|
When the control connection is reused for a subsequent transfer, some FTPS
|
|
servers complain about "missing session reuse" for the data channel for the
|
|
second transfer.
|
|
|
|
https://github.com/curl/curl/issues/4654
|
|
|
|
7.11 FTPS upload data loss with TLS 1.3
|
|
|
|
During FTPS upload curl does not attempt to read TLS handshake messages sent
|
|
after the initial handshake. OpenSSL servers running TLS 1.3 may send such a
|
|
message. When curl closes the upload connection if unread data has been
|
|
received (such as a TLS handshake message) then the TCP protocol sends an
|
|
RST to the server, which may cause the server to discard or truncate the
|
|
upload if it has not read all sent data yet, and then return an error to curl
|
|
on the control channel connection.
|
|
|
|
Since 7.78.0 this is mostly fixed. curl will do a single read before closing
|
|
TLS connections (which causes the TLS library to read handshake messages),
|
|
however there is still possibility of an RST if more messages need to be read
|
|
or a message arrives after the read but before close (network race condition).
|
|
|
|
https://github.com/curl/curl/issues/6149
|
|
|
|
7.12 FTPS directory listing hangs on Windows with Schannel
|
|
|
|
https://github.com/curl/curl/issues/9161
|
|
|
|
9. SFTP and SCP
|
|
|
|
9.1 SFTP does not do CURLOPT_POSTQUOTE correct
|
|
|
|
When libcurl sends CURLOPT_POSTQUOTE commands when connected to a SFTP server
|
|
using the multi interface, the commands are not being sent correctly and
|
|
instead the connection is "cancelled" (the operation is considered done)
|
|
prematurely. There is a half-baked (busy-looping) patch provided in the bug
|
|
report but it cannot be accepted as-is. See
|
|
https://curl.se/bug/view.cgi?id=748
|
|
|
|
9.2 wolfssh: publickey auth does not work
|
|
|
|
When building curl to use the wolfSSH backend for SFTP, the publickey
|
|
authentication does not work. This is simply functionality not written for curl
|
|
yet, the necessary API for make this work is provided by wolfSSH.
|
|
|
|
See https://github.com/curl/curl/issues/4820
|
|
|
|
9.3 Remote recursive folder creation with SFTP
|
|
|
|
On this servers, the curl fails to create directories on the remote server
|
|
even when the CURLOPT_FTP_CREATE_MISSING_DIRS option is set.
|
|
|
|
See https://github.com/curl/curl/issues/5204
|
|
|
|
9.4 libssh blocking and infinite loop problem
|
|
|
|
In the SSH_SFTP_INIT state for libssh, the ssh session working mode is set to
|
|
blocking mode. If the network is suddenly disconnected during sftp
|
|
transmission, curl will be stuck, even if curl is configured with a timeout.
|
|
|
|
https://github.com/curl/curl/issues/8632
|
|
|
|
|
|
10. SOCKS
|
|
|
|
10.3 FTPS over SOCKS
|
|
|
|
libcurl does not support FTPS over a SOCKS proxy.
|
|
|
|
|
|
11. Internals
|
|
|
|
11.1 Curl leaks .onion hostnames in DNS
|
|
|
|
Curl sends DNS requests for hostnames with a .onion TLD. This leaks
|
|
information about what the user is attempting to access, and violates this
|
|
requirement of RFC7686: https://datatracker.ietf.org/doc/html/rfc7686
|
|
|
|
Issue: https://github.com/curl/curl/issues/543
|
|
|
|
11.2 error buffer not set if connection to multiple addresses fails
|
|
|
|
If you ask libcurl to resolve a hostname like example.com to IPv6 addresses
|
|
only. But you only have IPv4 connectivity. libcurl will correctly fail with
|
|
CURLE_COULDNT_CONNECT. But the error buffer set by CURLOPT_ERRORBUFFER
|
|
remains empty. Issue: https://github.com/curl/curl/issues/544
|
|
|
|
11.4 HTTP test server 'connection-monitor' problems
|
|
|
|
The 'connection-monitor' feature of the sws HTTP test server does not work
|
|
properly if some tests are run in unexpected order. Like 1509 and then 1525.
|
|
|
|
See https://github.com/curl/curl/issues/868
|
|
|
|
11.5 Connection information when using TCP Fast Open
|
|
|
|
CURLINFO_LOCAL_PORT (and possibly a few other) fails when TCP Fast Open is
|
|
enabled.
|
|
|
|
See https://github.com/curl/curl/issues/1332 and
|
|
https://github.com/curl/curl/issues/4296
|
|
|
|
11.7 signal-based resolver timeouts
|
|
|
|
libcurl built without an asynchronous resolver library uses alarm() to time
|
|
out DNS lookups. When a timeout occurs, this causes libcurl to jump from the
|
|
signal handler back into the library with a sigsetjmp, which effectively
|
|
causes libcurl to continue running within the signal handler. This is
|
|
non-portable and could cause problems on some platforms. A discussion on the
|
|
problem is available at https://curl.se/mail/lib-2008-09/0197.html
|
|
|
|
Also, alarm() provides timeout resolution only to the nearest second. alarm
|
|
ought to be replaced by setitimer on systems that support it.
|
|
|
|
11.8 DoH leaks memory after followlocation
|
|
|
|
https://github.com/curl/curl/issues/4592
|
|
|
|
11.9 DoH does not inherit all transfer options
|
|
|
|
Some options are not inherited because they are not relevant for the DoH SSL
|
|
connections, or inheriting the option may result in unexpected behavior. For
|
|
example the user's debug function callback is not inherited because it would
|
|
be unexpected for internal handles (ie DoH handles) to be passed to that
|
|
callback.
|
|
|
|
If an option is not inherited then it is not possible to set it separately for
|
|
DoH without a DoH-specific option. For example: CURLOPT_DOH_SSL_VERIFYHOST,
|
|
CURLOPT_DOH_SSL_VERIFYPEER and CURLOPT_DOH_SSL_VERIFYSTATUS.
|
|
|
|
See https://github.com/curl/curl/issues/6605
|
|
|
|
11.10 Blocking socket operations in non-blocking API
|
|
|
|
The list of blocking socket operations is in TODO section "More non-blocking".
|
|
|
|
11.11 A shared connection cache is not thread-safe
|
|
|
|
The share interface offers CURL_LOCK_DATA_CONNECT to have multiple easy
|
|
handle share a connection cache, but due to how connections are used they are
|
|
still not thread-safe when used shared.
|
|
|
|
See https://github.com/curl/curl/issues/4915 and lib1541.c
|
|
|
|
11.15 CURLOPT_OPENSOCKETPAIRFUNCTION is missing
|
|
|
|
When libcurl creates sockets with socketpair(), those are not "exposed" in
|
|
CURLOPT_OPENSOCKETFUNCTION and therefore might surprise and be unknown to
|
|
applications that expect and want all sockets known beforehand. One way to
|
|
address this issue is to introduce a CURLOPT_OPENSOCKETPAIRFUNCTION callback.
|
|
|
|
https://github.com/curl/curl/issues/5747
|
|
|
|
11.16 libcurl uses renames instead of locking for atomic operations
|
|
|
|
For saving cookies, alt-svc and hsts files. This is bad when for example the
|
|
file is stored in a directory where the application has no write permission
|
|
but it has permission for the file.
|
|
|
|
https://github.com/curl/curl/issues/6882
|
|
https://github.com/curl/curl/pull/6884
|
|
|
|
12. LDAP
|
|
|
|
12.1 OpenLDAP hangs after returning results
|
|
|
|
By configuration defaults, OpenLDAP automatically chase referrals on
|
|
secondary socket descriptors. The OpenLDAP backend is asynchronous and thus
|
|
should monitor all socket descriptors involved. Currently, these secondary
|
|
descriptors are not monitored, causing OpenLDAP library to never receive
|
|
data from them.
|
|
|
|
As a temporary workaround, disable referrals chasing by configuration.
|
|
|
|
The fix is not easy: proper automatic referrals chasing requires a
|
|
synchronous bind callback and monitoring an arbitrary number of socket
|
|
descriptors for a single easy handle (currently limited to 5).
|
|
|
|
Generic LDAP is synchronous: OK.
|
|
|
|
See https://github.com/curl/curl/issues/622 and
|
|
https://curl.se/mail/lib-2016-01/0101.html
|
|
|
|
12.2 LDAP on Windows does authentication wrong?
|
|
|
|
https://github.com/curl/curl/issues/3116
|
|
|
|
12.3 LDAP on Windows does not work
|
|
|
|
A simple curl command line getting "ldap://ldap.forumsys.com" returns an
|
|
error that says "no memory" !
|
|
|
|
https://github.com/curl/curl/issues/4261
|
|
|
|
12.4 LDAPS with NSS is slow
|
|
|
|
See https://github.com/curl/curl/issues/5874
|
|
|
|
13. TCP/IP
|
|
|
|
13.2 Trying local ports fails on Windows
|
|
|
|
This makes '--local-port [range]' to not work since curl can't properly
|
|
detect if a port is already in use, so it'll try the first port, use that and
|
|
then subsequently fail anyway if that was actually in use.
|
|
|
|
https://github.com/curl/curl/issues/8112
|
|
|
|
15. CMake
|
|
|
|
15.2 support build with GnuTLS
|
|
|
|
15.3 unusable tool_hugehelp.c with MinGW
|
|
|
|
see https://github.com/curl/curl/issues/3125
|
|
|
|
15.4 build docs/curl.1
|
|
|
|
The cmake build does not create the docs/curl.1 file and therefore must rely on
|
|
it being there already. This makes the --manual option not work and test
|
|
cases like 1139 cannot function.
|
|
|
|
15.5 build on Linux links libcurl to libdl
|
|
|
|
... which it should not need to!
|
|
|
|
See https://github.com/curl/curl/issues/6165
|
|
|
|
15.6 uses -lpthread instead of Threads::Threads
|
|
|
|
See https://github.com/curl/curl/issues/6166
|
|
|
|
15.7 generated .pc file contains strange entries
|
|
|
|
The Libs.private field of the generated .pc file contains -lgcc -lgcc_s -lc
|
|
-lgcc -lgcc_s
|
|
|
|
See https://github.com/curl/curl/issues/6167
|
|
|
|
15.8 libcurl.pc uses absolute library paths
|
|
|
|
The libcurl.pc file generated by cmake contains things like Libs.private:
|
|
/usr/lib64/libssl.so /usr/lib64/libcrypto.so /usr/lib64/libz.so. The
|
|
autotools equivalent would say Libs.private: -lssl -lcrypto -lz
|
|
|
|
See https://github.com/curl/curl/issues/6169
|
|
|
|
15.9 cert paths autodetected when cross-compiling
|
|
|
|
The autotools build disables the ca_path/ca_bundle detection when
|
|
cross-compiling. The cmake build keeps doing the detection.
|
|
|
|
See https://github.com/curl/curl/issues/6178
|
|
|
|
15.10 libpsl is not supported
|
|
|
|
See https://github.com/curl/curl/issues/6214
|
|
|
|
15.11 ExternalProject_Add does not set CURL_CA_PATH
|
|
|
|
CURL_CA_BUNDLE and CURL_CA_PATH are not set properly when cmake's
|
|
ExternalProject_Add is used to build curl as a dependency.
|
|
|
|
See https://github.com/curl/curl/issues/6313
|
|
|
|
15.12 cannot enable LDAPS on Windows
|
|
|
|
See https://github.com/curl/curl/issues/6284
|
|
|
|
15.13 CMake build with MIT Kerberos does not work
|
|
|
|
Minimum CMake version was bumped in curl 7.71.0 (#5358) Since CMake 3.2
|
|
try_compile started respecting the CMAKE_EXE_FLAGS. The code dealing with
|
|
MIT Kerberos detection sets few variables to potentially weird mix of space,
|
|
and ;-separated flags. It had to blow up at some point. All the CMake checks
|
|
that involve compilation are doomed from that point, the configured tree
|
|
cannot be built.
|
|
|
|
https://github.com/curl/curl/issues/6904
|
|
|
|
16. Applications
|
|
|
|
17. HTTP/2
|
|
|
|
17.1 Excessive HTTP/2 packets with TCP_NODELAY
|
|
|
|
Because of how curl sets TCP_NODELAY by default, HTTP/2 requests are issued
|
|
using more separate TCP packets than it would otherwise need to use. This
|
|
means spending more bytes than it has to. Just disabling TCP_NODELAY for
|
|
HTTP/2 is also not the correct fix because that then makes the outgoing
|
|
packets to get delayed.
|
|
|
|
See https://github.com/curl/curl/issues/6363
|
|
|
|
17.2 HTTP/2 frames while in the connection pool kill reuse
|
|
|
|
If the server sends HTTP/2 frames (like for example an HTTP/2 PING frame) to
|
|
curl while the connection is held in curl's connection pool, the socket will
|
|
be found readable when considered for reuse and that makes curl think it is
|
|
dead and then it will be closed and a new connection gets created instead.
|
|
|
|
This is *best* fixed by adding monitoring to connections while they are kept
|
|
in the pool so that pings can be responded to appropriately.
|
|
|
|
17.3 ENHANCE_YOUR_CALM causes infinite retries
|
|
|
|
Infinite retries with 2 parallel requests on one connection receiving GOAWAY
|
|
with ENHANCE_YOUR_CALM error code.
|
|
|
|
See https://github.com/curl/curl/issues/5119
|
|
|
|
17.4 Connection failures with parallel HTTP/2
|
|
|
|
See https://github.com/curl/curl/issues/5611
|
|
|
|
17.5 HTTP/2 connections through HTTPS proxy frequently stall
|
|
|
|
See https://github.com/curl/curl/issues/6936
|
|
|
|
18. HTTP/3
|
|
|
|
18.1 If the HTTP/3 server closes connection during upload curl hangs
|
|
|
|
See https://github.com/curl/curl/issues/6606
|
|
|
|
18.2 Transfer closed with n bytes remaining to read
|
|
|
|
HTTP/3 transfers with the Jetty HTTP/3 server seem to not work.
|
|
|
|
https://github.com/curl/curl/issues/8523
|
|
|
|
18.4 timeout when reusing an http3 connection
|
|
|
|
HTTP/3 with quiche seems to not work and always timeout a subsequent transfer
|
|
that reuses an already established connection
|
|
|
|
https://github.com/curl/curl/issues/8764
|
|
|
|
18.9 connection migration does not work
|
|
|
|
https://github.com/curl/curl/issues/7695
|