CURL status code list |
Status Code |
Status reason |
Explanation |
0 |
Normal access |
|
1 |
Incorrect Protocol |
Unsupported protocol. This version of cURL does not support this protocol. |
2 |
Initialization Code failed |
Initialization failed. |
3 |
The URL format is incorrect. |
URL format error. Incorrect syntax. |
4 |
Request Protocol Error |
|
5 |
Unable to parse proxy |
The proxy cannot be resolved. The specified proxy host cannot be parsed. |
6 |
Unable to Resolve Host address |
The host cannot be parsed. The specified remote host cannot be parsed. |
7 |
Unable to connect to host |
Unable to connect to the host. |
8 |
Remote Server unavailable |
An abnormal FTP server responds. CURL cannot parse the data sent by the server. |
9 |
Resource Access Error |
FTP access is denied. The server refuses to log on or cannot obtain the desired resource or directory. Most available You can try to enter a directory that does not exist on this server. |
11 |
Incorrect FTP Password |
FTP abnormal PASS reply. CURL cannot parse the response sent to the PASS request. |
13 |
Incorrect result |
If FTP does not respond to an abnormal PASV, cURL cannot parse the response sent to the PASV request. |
14 |
FTP responds to the PASV command |
The FTP format is 227. CURL cannot resolve the 227 rows sent by the server. |
15 |
Internal Fault |
FTP cannot connect to the host. The Host IP address obtained in Row 3 cannot be parsed. |
17 |
Set the transmission mode to binary |
FTP cannot be set to binary transmission. You cannot change the transmission mode to binary. |
18 |
The file transfer is short or later than expected |
Some files. Only some files are transmitted. |
19 |
RETR Command Transmission completed |
The RETR (or similar) command fails when FTP cannot download/access the specified file. |
21 |
Command completed successfully |
FTP quote error. Quote command returns an error from the server. |
22 |
Return normal |
The webpage cannot be found in HTTP. The requested URL cannot be found or another HTTP 400 or later error is returned. The Returned Code only appears after the-f/-- fail option is used. |
23 |
Data Writing failed |
Write error. CURL cannot write data to a local file system or for similar purposes. |
25 |
Unable to start upload |
FTP cannot STOR files. The server rejects the STOR operation for FTP upload. |
26 |
Callback Error |
Read error. Read problems. |
27 |
Memory Allocation request failed |
Insufficient memory. Memory Allocation request failed. |
28 |
Access timeout |
Operation timeout. The specified timeout period is reached. |
30 |
FTP port error |
Ftp port failure. PORT command failed. Not all FTP servers support PORT commands. Please Try to use passive (PASV) transmission instead! |
31 |
FTP error |
FTP cannot use the REST command. The rest command fails. This command is used to recover FTP transfers. |
33 |
Request not supported |
HTTP range error. The range "command" does not work. |
34 |
Internal error |
Http post error. Internal POST request error. |
35 |
SSL/TLS handshake failed |
SSL connection error. SSL handshake failed. |
36 |
Download cannot be recovered |
FTP resume is damaged. You cannot continue the download that was aborted earlier. |
37 |
File Permission Error |
The file cannot be read. The file cannot be opened. Permission problems? |
38 |
LDAP is not binding. |
LDAP cannot be bound. The LDAP binding (bind) operation failed. |
39 |
LDAP search failed |
LDAP search failed. |
41 |
Function not found |
Function cannot be found. You cannot find the required LDAP functions. |
42 |
Aborted callback |
Terminated by callback. The application notifies cURL of terminating the operation. |
43 |
Internal error |
Internal error. The function is called by an incorrect parameter. |
45 |
Interface Error |
Interface error. The specified outbound interface is unavailable. |
47 |
Excessive redirection |
Excessive redirection. CURL has reached the maximum limit set by following redirection |
48 |
Unrecognized Option |
The unknown TELNET option is specified. |
49 |
TELNET format Error |
Invalid telnet options. |
51 |
SSL Certificate for remote servers |
The peer's SSL certificate or the MD5 fingerprint of SSH are not determined. |
52 |
NO content returned by the server |
The server does not receive any response, which is considered an error here. |
53 |
Encryption Engine not found |
The SSL encryption engine cannot be found. |
54 |
Failed to set default SSL encryption |
The SSL encryption engine cannot be set to the default value. |
55 |
Unable to send Network Data |
Failed to send network data. |
56 |
Failure to receive Network Data |
Failed to receive network data. |
57 |
|
|
58 |
Local client certificate |
There is a problem with the local certificate. |
59 |
Password unavailable |
The specified SSL password cannot be used. |
60 |
The Credential cannot be verified. |
Peer certificates cannot be verified by known CA certificates. |
61 |
Unrecognized Transfer Encoding |
Unrecognized transfer encoding. |
62 |
Invalid LDAP URL |
Invalid ldap url. |
63 |
The maximum file size is exceeded. |
Exceeds the maximum file size. |
64 |
FTP failed |
The required ftp ssl level fails. |
65 |
An error occurred while performing the rewind operation. |
The volume (rewind) required to send this data failed. |
66 |
SSL engine failure |
An error occurred while initializing the SSL engine. |
67 |
Login denied on the server |
The user name, password, or similar information is not accepted, and cURL logon fails. |
68 |
File not found |
The file cannot be found on the TFTP server. |
69 |
No permission |
The TFTP server permission is incorrect. |
70 |
Exceeds server disk space |
The disk space of the TFTP server is insufficient. |
71 |
Illegal TFTP operation |
Illegal TFTP operation. |
72 |
Unknown TFTP transfer ID |
Unknown TFTP transfer number (ID ). |
73 |
File already exists |
The file already exists (TFTP ). |
74 |
Error TFTP Server |
This user does not exist (TFTP ). |
75 |
Character Conversion failed |
Character Conversion failed. |
76 |
Callback must be recorded |
Character conversion is required. |
77 |
CA certificate permission |
An error occurred while reading the SSL Certificate (path? Access permission? ). |
78 |
The referenced resource in the URL does not exist. |
The referenced resource in the URL does not exist. |
79 |
The error occurs in the SSH session. |
An unknown error occurs during an SSH session. |
80 |
Unable to close SSL connection |
Failed to close the SSL connection. |
81 |
Service not prepared |
|
82 |
Cannot load CRL File |
Cannot load CRL files, lost or incorrectly formatted (added in version 7.19.0 ). |
83 |
Issuer check failed |
Issue check failed (added in version 7.19.0 ). |