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+.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
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Why they occur and possibly what you can do to fix the problem are also included.
.SH "CURLcode"
Almost all "easy" interface functions return a CURLcode error code. No matter
-what, using the \fIcurl_easy_setopt(3)\fP option \fICURLOPT_ERRORBUFFER\fP is
-a good idea as it will give you a human readable error string that may offer
-more details about the cause of the error than just the error code.
-\fIcurl_easy_strerror(3)\fP can be called to get an error string from a
-given CURLcode number.
+what, using the \fIcurl_easy_setopt(3)\fP option \fICURLOPT_ERRORBUFFER(3)\fP
+is a good idea as it will give you a human readable error string that may
+offer more details about the cause of the error than just the error code.
+\fIcurl_easy_strerror(3)\fP can be called to get an error string from a given
+CURLcode number.
CURLcode is one of the following:
.IP "CURLE_OK (0)"
.IP "CURLE_COULDNT_CONNECT (7)"
Failed to connect() to host or proxy.
.IP "CURLE_FTP_WEIRD_SERVER_REPLY (8)"
-After connecting to a FTP server, libcurl expects to get a certain reply
-back. This error code implies that it got a strange or bad reply. The given
-remote server is probably not an OK FTP server.
+The server sent data libcurl couldn't parse. This error code is used for more
+than just FTP and is aliased as \fICURLE_WEIRD_SERVER_REPLY\fP since 7.51.0.
.IP "CURLE_REMOTE_ACCESS_DENIED (9)"
We were denied access to the resource given in the URL. For FTP, this occurs
while trying to change to the remote directory.
reply. This error code indicates that an unexpected code was returned.
.IP "CURLE_FTP_ACCEPT_TIMEOUT (12)"
During an active FTP session while waiting for the server to connect, the
-\fICURLOPT_ACCEPTTIMOUT_MS\fP (or the internal default) timeout expired.
+\fICURLOPT_ACCEPTTIMEOUT_MS(3)\fP (or the internal default) timeout expired.
.IP "CURLE_FTP_WEIRD_PASV_REPLY (13)"
libcurl failed to get a sensible result back from the server as a response to
either a PASV or a EPSV command. The server is flawed.
fails to parse that line, this return code is passed back.
.IP "CURLE_FTP_CANT_GET_HOST (15)"
An internal failure to lookup the host used for the new connection.
+.IP "CURLE_HTTP2 (16)"
+A problem was detected in the HTTP2 framing layer. This is somewhat generic
+and can be one out of several problems, see the error buffer for details.
.IP "CURLE_FTP_COULDNT_SET_TYPE (17)"
Received an error when trying to set the transfer mode to binary or ASCII.
.IP "CURLE_PARTIAL_FILE (18)"
returned an error code that was 400 or higher (for FTP) or otherwise
indicated unsuccessful completion of the command.
.IP "CURLE_HTTP_RETURNED_ERROR (22)"
-This is returned if CURLOPT_FAILONERROR is set TRUE and the HTTP server
-returns an error code that is >= 400.
+This is returned if \fICURLOPT_FAILONERROR(3)\fP is set TRUE and the HTTP
+server returns an error code that is >= 400.
.IP "CURLE_WRITE_ERROR (23)"
An error occurred when writing received data to a local file, or an error was
returned to libcurl from a write callback.
conditions.
.IP "CURLE_FTP_PORT_FAILED (30)"
The FTP PORT command returned error. This mostly happens when you haven't
-specified a good enough address for libcurl to use. See \fICURLOPT_FTPPORT\fP.
+specified a good enough address for libcurl to use. See
+\fICURLOPT_FTPPORT(3)\fP.
.IP "CURLE_FTP_COULDNT_USE_REST (31)"
The FTP REST command returned error. This should never happen if the server is
sane.
.IP "CURLE_INTERFACE_FAILED (45)"
Interface error. A specified outgoing interface could not be used. Set which
interface to use for outgoing connections' source IP address with
-CURLOPT_INTERFACE.
+\fICURLOPT_INTERFACE(3)\fP.
.IP "CURLE_TOO_MANY_REDIRECTS (47)"
Too many redirects. When following redirects, libcurl hit the maximum amount.
-Set your limit with CURLOPT_MAXREDIRS.
+Set your limit with \fICURLOPT_MAXREDIRS(3)\fP.
.IP "CURLE_UNKNOWN_OPTION (48)"
An option passed to libcurl is not recognized/known. Refer to the appropriate
documentation. This is most likely a problem in the program that uses
Issuer check failed (Added in 7.19.0)
.IP "CURLE_FTP_PRET_FAILED (84)"
The FTP server does not understand the PRET command at all or does not support
-the given argument. Be careful when using \fICURLOPT_CUSTOMREQUEST\fP, a
+the given argument. Be careful when using \fICURLOPT_CUSTOMREQUEST(3)\fP, a
custom LIST command will be sent with PRET CMD before PASV as well. (Added in
7.20.0)
.IP "CURLE_RTSP_CSEQ_ERROR (85)"
.IP "CURLE_NO_CONNECTION_AVAILABLE (89)"
(For internal use only, will never be returned by libcurl) No connection
available, the session will be queued. (added in 7.30.0)
+.IP "CURLE_SSL_PINNEDPUBKEYNOTMATCH (90)"
+Failed to match the pinned key specified with \fICURLOPT_PINNEDPUBLICKEY(3)\fP.
+.IP "CURLE_SSL_INVALIDCERTSTATUS (91)"
+Status returned failure when asked with \fICURLOPT_SSL_VERIFYSTATUS(3)\fP.
+.IP "CURLE_HTTP2_STREAM (92)"
+Stream error in the HTTP/2 framing layer.
.IP "CURLE_OBSOLETE*"
These error codes will never be returned. They were used in an old libcurl
version and are currently unused.
.IP "CURLM_UNKNOWN_OPTION (6)"
curl_multi_setopt() with unsupported option
(Added in 7.15.4)
+.IP "CURLM_ADDED_ALREADY (7)"
+An easy handle already added to a multi handle was attempted to get added a
+second time. (Added in 7.32.1)
.SH "CURLSHcode"
The "share" interface will return a CURLSHcode to indicate when an error has
occurred. Also consider \fIcurl_share_strerror(3)\fP.
.IP "CURLSHE_NOT_BUILT_IN (5)"
The requested sharing could not be done because the library you use don't have
that particular feature enabled. (Added in 7.23.0)
+.SH "SEE ALSO"
+.BR curl_easy_strerror "(3), " curl_multi_strerror "(3), "
+.BR curl_share_strerror "(3), " CURLOPT_ERRORBUFFER "(3), "
+.BR CURLOPT_VERBOSE "(3), " CURLOPT_DEBUGFUNCTION "(3) "
projects / platform / upstream / curl.git / blobdiff