added lots of numbers for the error codes as they're often printed

typedef enum {

  CURLE_OK = 0,

  CURLE_UNSUPPORTED_PROTOCOL,

  CURLE_FAILED_INIT,

  CURLE_URL_MALFORMAT,

  CURLE_URL_MALFORMAT_USER,

  CURLE_COULDNT_RESOLVE_PROXY,

  CURLE_COULDNT_RESOLVE_HOST,

  CURLE_COULDNT_CONNECT,

  CURLE_FTP_WEIRD_SERVER_REPLY,

  CURLE_FTP_ACCESS_DENIED,

  CURLE_FTP_USER_PASSWORD_INCORRECT,

  CURLE_FTP_WEIRD_PASS_REPLY,

  CURLE_FTP_WEIRD_USER_REPLY,

  CURLE_FTP_WEIRD_PASV_REPLY,

  CURLE_FTP_WEIRD_227_FORMAT,

  CURLE_FTP_CANT_GET_HOST,

  CURLE_FTP_CANT_RECONNECT,

  CURLE_FTP_COULDNT_SET_BINARY,

  CURLE_PARTIAL_FILE,

  CURLE_FTP_COULDNT_RETR_FILE,

  CURLE_FTP_WRITE_ERROR,

  CURLE_FTP_QUOTE_ERROR,

  CURLE_HTTP_NOT_FOUND,

  CURLE_WRITE_ERROR,

  CURLE_MALFORMAT_USER, /* the user name is illegally specified */

  CURLE_FTP_COULDNT_STOR_FILE, /* failed FTP upload */

  CURLE_READ_ERROR, /* could open/read from file */

  CURLE_OUT_OF_MEMORY,

  CURLE_OPERATION_TIMEOUTED, /* the timeout time was reached */

  CURLE_FTP_COULDNT_SET_ASCII, /* TYPE A failed */

  CURLE_FTP_PORT_FAILED, /* FTP PORT operation failed */

  CURLE_FTP_COULDNT_USE_REST, /* the REST command failed */

  CURLE_FTP_COULDNT_GET_SIZE, /* the SIZE command failed */

  CURLE_HTTP_RANGE_ERROR, /* The RANGE "command" didn't seem to work */

  CURLE_HTTP_POST_ERROR,

  CURLE_SSL_CONNECT_ERROR, /* something was wrong when connecting with SSL */

  CURLE_FTP_BAD_DOWNLOAD_RESUME, /* couldn't resume download */

  CURLE_FILE_COULDNT_READ_FILE,

  CURLE_LDAP_CANNOT_BIND,

  CURLE_LDAP_SEARCH_FAILED,

  CURLE_LIBRARY_NOT_FOUND,

  CURLE_FUNCTION_NOT_FOUND,

  CURLE_ABORTED_BY_CALLBACK,

  CURLE_BAD_FUNCTION_ARGUMENT,

  CURLE_BAD_CALLING_ORDER,

  CURLE_HTTP_PORT_FAILED, /* HTTP Interface operation failed */

  CURLE_BAD_PASSWORD_ENTERED, /* when the my_getpass() returns fail */

  CURLE_TOO_MANY_REDIRECTS , /* catch endless re-direct loops */

  CURLE_UNKNOWN_TELNET_OPTION , /* User specified an unknown option */

  CURLE_TELNET_OPTION_SYNTAX , /* Malformed telnet option */

  CURL_LAST

  CURLE_UNSUPPORTED_PROTOCOL,    /* 1 */

  CURLE_FAILED_INIT,             /* 2 */

  CURLE_URL_MALFORMAT,           /* 3 */

  CURLE_URL_MALFORMAT_USER,      /* 4 */

  CURLE_COULDNT_RESOLVE_PROXY,   /* 5 */

  CURLE_COULDNT_RESOLVE_HOST,    /* 6 */

  CURLE_COULDNT_CONNECT,         /* 7 */

  CURLE_FTP_WEIRD_SERVER_REPLY,  /* 8 */

  CURLE_FTP_ACCESS_DENIED,       /* 9 */

  CURLE_FTP_USER_PASSWORD_INCORRECT, /* 10 */

  CURLE_FTP_WEIRD_PASS_REPLY,    /* 11 */

  CURLE_FTP_WEIRD_USER_REPLY,    /* 12 */

  CURLE_FTP_WEIRD_PASV_REPLY,    /* 13 */

  CURLE_FTP_WEIRD_227_FORMAT,    /* 14 */

  CURLE_FTP_CANT_GET_HOST,       /* 15 */

  CURLE_FTP_CANT_RECONNECT,      /* 16 */

  CURLE_FTP_COULDNT_SET_BINARY,  /* 17 */

  CURLE_PARTIAL_FILE,            /* 18 */

  CURLE_FTP_COULDNT_RETR_FILE,   /* 19 */

  CURLE_FTP_WRITE_ERROR,         /* 20 */

  CURLE_FTP_QUOTE_ERROR,         /* 21 */

  CURLE_HTTP_NOT_FOUND,          /* 22 */

  CURLE_WRITE_ERROR,             /* 23 */

  CURLE_MALFORMAT_USER,          /* 24 - user name is illegally specified */

  CURLE_FTP_COULDNT_STOR_FILE,   /* 25 - failed FTP upload */

  CURLE_READ_ERROR,              /* 26 - could open/read from file */

  CURLE_OUT_OF_MEMORY,           /* 27 */

  CURLE_OPERATION_TIMEOUTED,     /* 28 - the timeout time was reached */

  CURLE_FTP_COULDNT_SET_ASCII,   /* 29 - TYPE A failed */

  CURLE_FTP_PORT_FAILED,         /* 30 - FTP PORT operation failed */

  CURLE_FTP_COULDNT_USE_REST,    /* 31 - the REST command failed */

  CURLE_FTP_COULDNT_GET_SIZE,    /* 32 - the SIZE command failed */

  CURLE_HTTP_RANGE_ERROR,        /* 33 - RANGE "command" didn't work */

  CURLE_HTTP_POST_ERROR,         /* 34 */

  CURLE_SSL_CONNECT_ERROR,       /* 35 - wrong when connecting with SSL */

  CURLE_FTP_BAD_DOWNLOAD_RESUME, /* 36 - couldn't resume download */

  CURLE_FILE_COULDNT_READ_FILE,  /* 37 */

  CURLE_LDAP_CANNOT_BIND,        /* 38 */

  CURLE_LDAP_SEARCH_FAILED,      /* 39 */

  CURLE_LIBRARY_NOT_FOUND,       /* 40 */

  CURLE_FUNCTION_NOT_FOUND,      /* 41 */

  CURLE_ABORTED_BY_CALLBACK,     /* 42 */

  CURLE_BAD_FUNCTION_ARGUMENT,   /* 43 */

  CURLE_BAD_CALLING_ORDER,       /* 44 */

  CURLE_HTTP_PORT_FAILED,        /* 45 - HTTP Interface operation failed */

  CURLE_BAD_PASSWORD_ENTERED,    /* 46 - my_getpass() returns fail */

  CURLE_TOO_MANY_REDIRECTS ,     /* 47 - catch endless re-direct loops */

  CURLE_UNKNOWN_TELNET_OPTION,   /* 48 - User specified an unknown option */

  CURLE_TELNET_OPTION_SYNTAX ,   /* 49 - Malformed telnet option */

  CURL_LAST /* never use! */

} CURLcode;

/* This is just to make older programs not break: */