#include "setup.h"
#ifdef HAVE_STRERROR_R
#if !defined(HAVE_POSIX_STRERROR_R) && !defined(HAVE_GLIBC_STRERROR_R)
#error "you MUST have either POSIX or glibc strerror_r if strerror_r is found"
#endif
#endif
#include <curl/curl.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifdef USE_LIBIDN
#include <idna.h>
#endif
#include "strerror.h"
#define _MPRINTF_REPLACE
#include <curl/mprintf.h>
#if defined(HAVE_STRERROR_R) && defined(HAVE_NO_STRERROR_R_DECL)
#ifdef HAVE_POSIX_STRERROR_R
extern int strerror_r(int errnum, char *strerrbuf, size_t buflen);
#else
extern char *strerror_r(int errnum, char *buf, size_t buflen);
#endif
#endif
const char *
curl_easy_strerror(CURLcode error)
{
#ifndef CURL_DISABLE_VERBOSE_STRINGS
switch (error) {
case CURLE_OK:
return "no error";
case CURLE_UNSUPPORTED_PROTOCOL:
return "unsupported protocol";
case CURLE_FAILED_INIT:
return "failed init";
case CURLE_URL_MALFORMAT:
return "URL using bad/illegal format or missing URL";
case CURLE_COULDNT_RESOLVE_PROXY:
return "couldn't resolve proxy name";
case CURLE_COULDNT_RESOLVE_HOST:
return "couldn't resolve host name";
case CURLE_COULDNT_CONNECT:
return "couldn't connect to server";
case CURLE_FTP_WEIRD_SERVER_REPLY:
return "FTP: weird server reply";
case CURLE_FTP_ACCESS_DENIED:
return "FTP: access denied";
case CURLE_FTP_WEIRD_PASS_REPLY:
return "FTP: unknown PASS reply";
case CURLE_FTP_WEIRD_USER_REPLY:
return "FTP: unknown USER reply";
case CURLE_FTP_WEIRD_PASV_REPLY:
return "FTP: unknown PASV reply";
case CURLE_FTP_WEIRD_227_FORMAT:
return "FTP: unknown 227 response format";
case CURLE_FTP_CANT_GET_HOST:
return "FTP: can't figure out the host in the PASV response";
case CURLE_FTP_CANT_RECONNECT:
return "FTP: can't connect to server the response code is unknown";
case CURLE_FTP_COULDNT_SET_BINARY:
return "FTP: couldn't set binary mode";
case CURLE_PARTIAL_FILE:
return "Transferred a partial file";
case CURLE_FTP_COULDNT_RETR_FILE:
return "FTP: couldn't retrieve (RETR failed) the specified file";
case CURLE_FTP_WRITE_ERROR:
return "FTP: the post-transfer acknowledge response was not OK";
case CURLE_FTP_QUOTE_ERROR:
return "FTP: a quote command returned error";
case CURLE_HTTP_RETURNED_ERROR:
return "HTTP response code said error";
case CURLE_WRITE_ERROR:
return "failed writing received data to disk/application";
case CURLE_UPLOAD_FAILED:
return "upload failed (at start/before it took off)";
case CURLE_READ_ERROR:
return "failed to open/read local data from file/application";
case CURLE_OUT_OF_MEMORY:
#ifdef CURL_DOES_CONVERSIONS
return "conversion failed -or- out of memory";
#else
return "out of memory";
#endif
case CURLE_OPERATION_TIMEOUTED:
return "a timeout was reached";
case CURLE_FTP_COULDNT_SET_ASCII:
return "FTP could not set ASCII mode (TYPE A)";
case CURLE_FTP_PORT_FAILED:
return "FTP command PORT failed";
case CURLE_FTP_COULDNT_USE_REST:
return "FTP command REST failed";
case CURLE_FTP_COULDNT_GET_SIZE:
return "FTP command SIZE failed";
case CURLE_HTTP_RANGE_ERROR:
return "a range was requested but the server did not deliver it";
case CURLE_HTTP_POST_ERROR:
return "internal problem setting up the POST";
case CURLE_SSL_CONNECT_ERROR:
return "SSL connect error";
case CURLE_BAD_DOWNLOAD_RESUME:
return "couldn't resume download";
case CURLE_FILE_COULDNT_READ_FILE:
return "couldn't read a file:// file";
case CURLE_LDAP_CANNOT_BIND:
return "LDAP: cannot bind";
case CURLE_LDAP_SEARCH_FAILED:
return "LDAP: search failed";
case CURLE_LIBRARY_NOT_FOUND:
return "a required shared library was not found";
case CURLE_FUNCTION_NOT_FOUND:
return "a required function in the shared library was not found";
case CURLE_ABORTED_BY_CALLBACK:
return "the operation was aborted by an application callback";
case CURLE_BAD_FUNCTION_ARGUMENT:
return "a libcurl function was given a bad argument";
case CURLE_INTERFACE_FAILED:
return "failed binding local connection end";
case CURLE_TOO_MANY_REDIRECTS :
return "number of redirects hit maximum amount";
case CURLE_UNKNOWN_TELNET_OPTION:
return "User specified an unknown option";
case CURLE_TELNET_OPTION_SYNTAX :
return "Malformed telnet option";
case CURLE_SSL_PEER_CERTIFICATE:
return "SSL peer certificate was not ok";
case CURLE_GOT_NOTHING:
return "server returned nothing (no headers, no data)";
case CURLE_SSL_ENGINE_NOTFOUND:
return "SSL crypto engine not found";
case CURLE_SSL_ENGINE_SETFAILED:
return "can not set SSL crypto engine as default";
case CURLE_SSL_ENGINE_INITFAILED:
return "failed to initialise SSL crypto engine";
case CURLE_SEND_ERROR:
return "failed sending data to the peer";
case CURLE_RECV_ERROR:
return "failure when receiving data from the peer";
case CURLE_SHARE_IN_USE:
return "share is already in use";
case CURLE_SSL_CERTPROBLEM:
return "problem with the local SSL certificate";
case CURLE_SSL_CIPHER:
return "couldn't use specified SSL cipher";
case CURLE_SSL_CACERT:
return "peer certificate cannot be authenticated with known CA certificates";
case CURLE_SSL_CACERT_BADFILE:
return "problem with the SSL CA cert (path? access rights?)";
case CURLE_BAD_CONTENT_ENCODING:
return "Unrecognized HTTP Content-Encoding";
case CURLE_LDAP_INVALID_URL:
return "Invalid LDAP URL";
case CURLE_FILESIZE_EXCEEDED:
return "Maximum file size exceeded";
case CURLE_FTP_SSL_FAILED:
return "Requested FTP SSL level failed";
case CURLE_SSL_SHUTDOWN_FAILED:
return "Failed to shut down the SSL connection";
case CURLE_SEND_FAIL_REWIND:
return "Send failed since rewinding of the data stream failed";
case CURLE_LOGIN_DENIED:
return "FTP: login denied";
case CURLE_TFTP_NOTFOUND:
return "TFTP: File Not Found";
case CURLE_TFTP_PERM:
return "TFTP: Access Violation";
case CURLE_TFTP_DISKFULL:
return "TFTP: Disk full or allocation exceeded";
case CURLE_TFTP_ILLEGAL:
return "TFTP: Illegal operation";
case CURLE_TFTP_UNKNOWNID:
return "TFTP: Unknown transfer ID";
case CURLE_TFTP_EXISTS:
return "TFTP: File already exists";
case CURLE_TFTP_NOSUCHUSER:
return "TFTP: No such user";
case CURLE_CONV_FAILED:
return "conversion failed";
case CURLE_CONV_REQD:
return "caller must register CURLOPT_CONV_ callback options";
case CURLE_REMOTE_FILE_NOT_FOUND:
return "Remote file not found";
case CURLE_SSH:
return "Error in the SSH layer";
case CURLE_URL_MALFORMAT_USER:
case CURLE_FTP_USER_PASSWORD_INCORRECT:
case CURLE_MALFORMAT_USER:
case CURLE_BAD_CALLING_ORDER:
case CURLE_BAD_PASSWORD_ENTERED:
case CURLE_OBSOLETE:
case CURL_LAST:
break;
}
return "unknown error";
#else
if (error == CURLE_OK)
return "no error";
else
return "error";
#endif
}
const char *
curl_multi_strerror(CURLMcode error)
{
#ifndef CURL_DISABLE_VERBOSE_STRINGS
switch (error) {
case CURLM_CALL_MULTI_PERFORM:
return "please call curl_multi_perform() soon";
case CURLM_OK:
return "no error";
case CURLM_BAD_HANDLE:
return "invalid multi handle";
case CURLM_BAD_EASY_HANDLE:
return "invalid easy handle";
case CURLM_OUT_OF_MEMORY:
return "out of memory";
case CURLM_INTERNAL_ERROR:
return "internal error";
case CURLM_BAD_SOCKET:
return "invalid socket argument";
case CURLM_UNKNOWN_OPTION:
return "unknown option";
case CURLM_LAST:
break;
}
return "unknown error";
#else
if (error == CURLM_OK)
return "no error";
else
return "error";
#endif
}
const char *
curl_share_strerror(CURLSHcode error)
{
#ifndef CURL_DISABLE_VERBOSE_STRINGS
switch (error) {
case CURLSHE_OK:
return "no error";
case CURLSHE_BAD_OPTION:
return "unknown share option";
case CURLSHE_IN_USE:
return "share currently in use";
case CURLSHE_INVALID:
return "invalid share handle";
case CURLSHE_NOMEM:
return "out of memory";
case CURLSHE_LAST:
break;
}
return "CURLSH unknown";
#else
if (error == CURLSHE_OK)
return "no error";
else
return "error";
#endif
}
#ifdef USE_WINSOCK
static const char *
get_winsock_error (int err, char *buf, size_t len)
{
const char *p;
#ifndef CURL_DISABLE_VERBOSE_STRINGS
switch (err) {
case WSAEINTR:
p = "Call interrupted.";
break;
case WSAEBADF:
p = "Bad file";
break;
case WSAEACCES:
p = "Bad access";
break;
case WSAEFAULT:
p = "Bad argument";
break;
case WSAEINVAL:
p = "Invalid arguments";
break;
case WSAEMFILE:
p = "Out of file descriptors";
break;
case WSAEWOULDBLOCK:
p = "Call would block";
break;
case WSAEINPROGRESS:
case WSAEALREADY:
p = "Blocking call in progress";
break;
case WSAENOTSOCK:
p = "Descriptor is not a socket.";
break;
case WSAEDESTADDRREQ:
p = "Need destination address";
break;
case WSAEMSGSIZE:
p = "Bad message size";
break;
case WSAEPROTOTYPE:
p = "Bad protocol";
break;
case WSAENOPROTOOPT:
p = "Protocol option is unsupported";
break;
case WSAEPROTONOSUPPORT:
p = "Protocol is unsupported";
break;
case WSAESOCKTNOSUPPORT:
p = "Socket is unsupported";
break;
case WSAEOPNOTSUPP:
p = "Operation not supported";
break;
case WSAEAFNOSUPPORT:
p = "Address family not supported";
break;
case WSAEPFNOSUPPORT:
p = "Protocol family not supported";
break;
case WSAEADDRINUSE:
p = "Address already in use";
break;
case WSAEADDRNOTAVAIL:
p = "Address not available";
break;
case WSAENETDOWN:
p = "Network down";
break;
case WSAENETUNREACH:
p = "Network unreachable";
break;
case WSAENETRESET:
p = "Network has been reset";
break;
case WSAECONNABORTED:
p = "Connection was aborted";
break;
case WSAECONNRESET:
p = "Connection was reset";
break;
case WSAENOBUFS:
p = "No buffer space";
break;
case WSAEISCONN:
p = "Socket is already connected";
break;
case WSAENOTCONN:
p = "Socket is not connected";
break;
case WSAESHUTDOWN:
p = "Socket has been shut down";
break;
case WSAETOOMANYREFS:
p = "Too many references";
break;
case WSAETIMEDOUT:
p = "Timed out";
break;
case WSAECONNREFUSED:
p = "Connection refused";
break;
case WSAELOOP:
p = "Loop??";
break;
case WSAENAMETOOLONG:
p = "Name too long";
break;
case WSAEHOSTDOWN:
p = "Host down";
break;
case WSAEHOSTUNREACH:
p = "Host unreachable";
break;
case WSAENOTEMPTY:
p = "Not empty";
break;
case WSAEPROCLIM:
p = "Process limit reached";
break;
case WSAEUSERS:
p = "Too many users";
break;
case WSAEDQUOT:
p = "Bad quota";
break;
case WSAESTALE:
p = "Something is stale";
break;
case WSAEREMOTE:
p = "Remote error";
break;
#ifdef WSAEDISCON
case WSAEDISCON:
p = "Disconnected";
break;
#endif
case WSASYSNOTREADY:
p = "Winsock library is not ready";
break;
case WSANOTINITIALISED:
p = "Winsock library not initialised";
break;
case WSAVERNOTSUPPORTED:
p = "Winsock version not supported.";
break;
case WSAHOST_NOT_FOUND:
p = "Host not found";
break;
case WSATRY_AGAIN:
p = "Host not found, try again";
break;
case WSANO_RECOVERY:
p = "Unrecoverable error in call to nameserver";
break;
case WSANO_DATA:
p = "No data record of requested type";
break;
default:
return NULL;
}
#else
if (err == CURLE_OK)
return NULL;
else
p = "error";
#endif
strncpy (buf, p, len);
buf [len-1] = '\0';
return buf;
}
#endif
const char *Curl_strerror(struct connectdata *conn, int err)
{
char *buf, *p;
size_t max;
DEBUGASSERT(conn);
DEBUGASSERT(err >= 0);
buf = conn->syserr_buf;
max = sizeof(conn->syserr_buf)-1;
*buf = '\0';
#ifdef USE_WINSOCK
#ifdef _WIN32_WCE
buf[0]=0;
{
wchar_t wbuf[256];
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
LANG_NEUTRAL, wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL);
wcstombs(buf,wbuf,max);
}
#else
if (err >= 0 && err < sys_nerr)
strncpy(buf, strerror(err), max);
else {
if (!get_winsock_error(err, buf, max) &&
!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
LANG_NEUTRAL, buf, (DWORD)max, NULL))
snprintf(buf, max, "Unknown error %d (%#x)", err, err);
}
#endif
#else
#ifdef HAVE_STRERROR_R
#ifdef HAVE_POSIX_STRERROR_R
strerror_r(err, buf, max);
#else
{
char buffer[256];
char *msg = strerror_r(err, buffer, sizeof(buffer));
if(msg)
strncpy(buf, msg, max);
else
snprintf(buf, max, "Unknown error %d", err);
}
#endif
#else
strncpy(buf, strerror(err), max);
#endif
#endif
buf[max] = '\0';
if ((p = strrchr(buf,'\n')) != NULL && (p - buf) >= 2)
*p = '\0';
if ((p = strrchr(buf,'\r')) != NULL && (p - buf) >= 1)
*p = '\0';
return buf;
}
#ifdef USE_LIBIDN
const char *Curl_idn_strerror (struct connectdata *conn, int err)
{
#ifdef HAVE_IDNA_STRERROR
(void)conn;
return idna_strerror((Idna_rc) err);
#else
const char *str;
char *buf;
size_t max;
DEBUGASSERT(conn);
buf = conn->syserr_buf;
max = sizeof(conn->syserr_buf)-1;
#ifndef CURL_DISABLE_VERBOSE_STRINGS
switch ((Idna_rc)err) {
case IDNA_SUCCESS:
str = "No error";
break;
case IDNA_STRINGPREP_ERROR:
str = "Error in string preparation";
break;
case IDNA_PUNYCODE_ERROR:
str = "Error in Punycode operation";
break;
case IDNA_CONTAINS_NON_LDH:
str = "Illegal ASCII characters";
break;
case IDNA_CONTAINS_MINUS:
str = "Contains minus";
break;
case IDNA_INVALID_LENGTH:
str = "Invalid output length";
break;
case IDNA_NO_ACE_PREFIX:
str = "No ACE prefix (\"xn--\")";
break;
case IDNA_ROUNDTRIP_VERIFY_ERROR:
str = "Roundtrip verify error";
break;
case IDNA_CONTAINS_ACE_PREFIX:
str = "Already have ACE prefix (\"xn--\")";
break;
case IDNA_ICONV_ERROR:
str = "Locale conversion failed";
break;
case IDNA_MALLOC_ERROR:
str = "Allocation failed";
break;
case IDNA_DLOPEN_ERROR:
str = "dlopen() error";
break;
default:
snprintf(buf, max, "error %d", (int)err);
str = NULL;
break;
}
#else
if ((Idna_rc)err == IDNA_SUCCESS)
str = "No error";
else
str = "error";
#endif
if (str)
strncpy(buf, str, max);
buf[max] = '\0';
return (buf);
#endif
}
#endif