diff options
Diffstat (limited to 'lib/curl_strerror.c')
| -rw-r--r-- | lib/curl_strerror.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/lib/curl_strerror.c b/lib/curl_strerror.c index 677c1a685..ac08978f5 100644 --- a/lib/curl_strerror.c +++ b/lib/curl_strerror.c @@ -21,6 +21,15 @@ ***************************************************************************/ #include <curl/curl.h> +#include "setup.h" +#include <stdlib.h> +#include <string.h> +#include <errno.h> + +#include "curl_strerror.h" + +#define _MPRINTF_REPLACE /* use our functions only */ +#include <curl/mprintf.h> const char * curl_easy_strerror(CURLcode error) @@ -294,3 +303,224 @@ curl_share_strerror(CURLSHcode error) return "CURLSH unknown"; } + +#if defined(WIN32) && !defined(__CYGWIN__) + +/* This function handles most / all (?) Winsock errors cURL is able to produce. + */ +static const char * +get_winsock_error (int err, char *buf, size_t len) +{ + char *p; + + 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; + case WSAEDISCON: + p = "Disconnected"; + break; + + /* Extended Winsock errors */ + case WSASYSNOTREADY: + p = "Winsock library is not ready"; + break; + case WSANOTINITIALISED: + p = "Winsock library not initalised"; + break; + case WSAVERNOTSUPPORTED: + p = "Winsock version not supported."; + break; + + /* getXbyY() errors (already handled in herrmsg): + * Authoritative Answer: Host not found */ + case WSAHOST_NOT_FOUND: + p = "Host not found"; + break; + + /* Non-Authoritative: Host not found, or SERVERFAIL */ + case WSATRY_AGAIN: + p = "Host not found, try again"; + break; + + /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ + case WSANO_RECOVERY: + p = "Unrecoverable error in call to nameserver"; + break; + + /* Valid name, no data record of requested type */ + case WSANO_DATA: + p = "No data record of requested type"; + break; + + default: + return NULL; + } + strncpy (buf, p, len); + buf [len-1] = '\0'; + return buf; +} +#endif /* WIN32 && !__CYGWIN__ */ + +/* + * Our thread-safe and smart strerror() replacement. + */ +const char *Curl_strerror(struct connectdata *conn, int err) +{ + char *buf, *p; + size_t max; + + curlassert(conn); + + buf = conn->syserr_buf; + max = sizeof(conn->syserr_buf)-1; + *buf = '\0'; + if (err >= 0 && err < sys_nerr) { + /* These should be atomic and hopefully thread-safe */ +#ifdef HAVE_STRERROR_R + strerror_r(err, buf, max); /* this may set ERANGE! */ +#else + strncpy(buf, strerror(err), max); +#endif + *(buf+max) = '\0'; + } + else +#if defined(WIN32) && !defined(__CYGWIN__) + if (!get_winsock_error (err, buf, max) && + !FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, + LANG_NEUTRAL, buf, max, NULL)) +#endif + snprintf(buf, max, "Unknown error %d (%#x)", err, err); + + /* strip trailing '\r\n' or '\n'. */ + if ((p = strrchr(buf,'\n')) != NULL && (p - buf) >= 2) + *p = '\0'; + if ((p = strrchr(buf,'\r')) != NULL && (p - buf) >= 1) + *p = '\0'; + return buf; +} |