/* UNIX SMBlib NetBIOS implementation

   Version 1.0
   SMBlib Error values etc ...

   Copyright (C) Richard Sharpe, Andrew Tridgell, and Merik Karman, 1996

*/

/*
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

/* This code ripped out of smbclient, where it was attributed to Merik  */
/* Karman merik@blackadder.dsh.oz.au                                    */
/* Modified by Richard Sharpe to try to make it more bullit proof and   */
/* ensure we don't overwrite strings when not passed enough space. Also */
/* added code to say unknown error codes if we see any                  */


#include <stdio.h>

typedef struct
{
  char *name;
  int code;
  char *message;
} err_code_struct;

/* Dos Error Messages */
err_code_struct dos_msgs[] = {
  {"ERRbadfunc",1,"Invalid function."},
  {"ERRbadfile",2,"File not found."},
  {"ERRbadpath",3,"Directory invalid."},
  {"ERRnofids",4,"No file descriptors available"},
  {"ERRnoaccess",5,"Access denied."},
  {"ERRbadfid",6,"Invalid file handle."},
  {"ERRbadmcb",7,"Memory control blocks destroyed."},
  {"ERRnomem",8,"Insufficient server memory to perform the requested function."}
,
  {"ERRbadmem",9,"Invalid memory block address."},
  {"ERRbadenv",10,"Invalid environment."},
  {"ERRbadformat",11,"Invalid format."},
  {"ERRbadaccess",12,"Invalid open mode."},
  {"ERRbaddata",13,"Invalid data."},
  {"ERR",14,"reserved."},
  {"ERRbaddrive",15,"Invalid drive specified."},
  {"ERRremcd",16,"A Delete Directory request attempted to remove the server's current directory."},
  {"ERRdiffdevice",17,"Not same device."},
  {"ERRnofiles",18,"A File Search command can find no more files matching the specified criteria."},
  {"ERRbadshare",32,"The sharing mode specified for an Open conflicts with existing FIDs on the file."},
  {"ERRlock",33,"A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process."},
  {"ERRbaddevtyp",66,"The device type is incorrect for a tree connect."},
  {"ERRbadnetnam",67,"The network name is incorrect or inappropriate."},
  {"ERRfilexists",80,"The file named in a Create Directory, Make New File or Link request already exists."},
  {"ERRbadpipe",230,"Pipe invalid."},
  {"ERRpipebusy",231,"All instances of the requested pipe are busy."},
  {"ERRpipeclosing",232,"Pipe close in progress."},
  {"ERRnotconnected",233,"No process on other end of pipe."},
  {"ERRmoredata",234,"There is more data to be returned."},
  {"ERRinvapi", 2142, "The API is invalid."},
  {NULL,-1,NULL}};

/* Server Error Messages */
err_code_struct server_msgs[] = {
  {"ERRerror",1,"Non-specific error code."},
  {"ERRbadpw",2,"Bad password - name/password pair in a Tree Connect or Session Setup are invalid."},
  {"ERRbadtype",3,"reserved."},
  {"ERRaccess",4,"Network access denied. The requester does not have the necessary access rights within the specified context for the requested function. The context is defined by the TID or the UID."},
  {"ERRinvnid",5,"The tree ID (TID) specified in a command was invalid."},
  {"ERRinvnetname",6,"Invalid network name in tree connect."},
  {"ERRinvdevice",7,"Invalid device - printer request made to non-printer connection or non-printer request made to printer connection."},
  {"ERRqfull",49,"Print queue full (files) -- returned by open print file."},
  {"ERRqtoobig",50,"Print queue full -- no space."},
  {"ERRqeof",51,"EOF on print queue dump."},
  {"ERRinvpfid",52,"Invalid print file FID."},
  {"ERRsmbcmd",64,"The server did not recognize the command received."},
  {"ERRsrverror",65,"The server encountered an internal error, e.g., system file unavailable."},
  {"ERRfilespecs",67,"The file handle (FID) and pathname parameters contained an invalid  combination of values."},
  {"ERRreserved",68,"reserved."},
  {"ERRbadpermits",69,"The access permissions specified for a file or directory are not a valid combination. The server cannot set the requested attribute."},
  {"ERRreserved",70,"reserved."},
  {"ERRsetattrmode",71,"The attribute mode in the Set File Attribute request is invalid."},
  {"ERRpaused",81,"Server is paused."},
  {"ERRmsgoff",82,"Not receiving messages."},
  {"ERRnoroom",83,"No room to buffer message."},
  {"ERRrmuns",87,"Too many remote user names."},
  {"ERRtimeout",88,"Operation timed out."},
  {"ERRnoresource",89,"No resources currently available for request."},
  {"ERRtoomanyuids",90,"Too many UIDs active on this session."},
  {"ERRbaduid",91,"The UID is not known as a valid ID on this session."},
  {"ERRusempx",250,"Temp unable to support Raw, use MPX mode."},
  {"ERRusestd",251,"Temp unable to support Raw, use standard read/write."},
  {"ERRcontmpx",252,"Continue in MPX mode."},
  {"ERRreserved",253,"reserved."},
  {"ERRreserved",254,"reserved."},
  {"ERRpwdexp",2242,"Password has expired."},
  {"ERRnosupport",0xFFFF,"Function not supported."},
  {NULL,-1,NULL}};

/* Hard Error Messages */
err_code_struct hard_msgs[] = {
  {"ERRnowrite",19,"Attempt to write on write-protected diskette."},
  {"ERRbadunit",20,"Unknown unit."},
  {"ERRnotready",21,"Drive not ready."},
  {"ERRbadcmd",22,"Unknown command."},
  {"ERRdata",23,"Data error (CRC)."},
  {"ERRbadreq",24,"Bad request structure length."},
  {"ERRseek",25 ,"Seek error."},
  {"ERRbadmedia",26,"Unknown media type."},
  {"ERRbadsector",27,"Sector not found."},
  {"ERRnopaper",28,"Printer out of paper."},
  {"ERRwrite",29,"Write fault."},
  {"ERRread",30,"Read fault."},
  {"ERRgeneral",31,"General failure."},
  {"ERRbadshare",32,"A open conflicts with an existing open."},
  {"ERRlock",33,"A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process."},
  {"ERRwrongdisk",34,"The wrong disk was found in a drive."},
  {"ERRFCBUnavail",35,"No FCBs are available to process request."},
  {"ERRsharebufexc",36,"A sharing buffer has been exceeded."},
  {"ERRdiskfull",39,"The disk is full."},
  {NULL,-1,NULL}};

struct
{
  int code;
  char *class;
  err_code_struct *err_msgs;
} err_classes[] = {
  {0,"SUCCESS",NULL},
  {0x01,"ERRDOS",dos_msgs},
  {0x02,"ERRSRV",server_msgs},
  {0x03,"ERRHRD",hard_msgs},
  {0x04,"ERRXOS",NULL},
  {0xE1,"ERRRMX1",NULL},
  {0xE2,"ERRRMX2",NULL},
  {0xE3,"ERRRMX3",NULL},
  {0xFF,"ERRCMD",NULL},
  {-1,NULL,NULL}};

/* Return in the string an error message after decoding the class and code */

int SMB_Get_SMB_Error_Msg(int err_class, int err_code, char *msg_buf, int len)

{ int i,j;
  char internal_buf[80];

  for (i=0;err_classes[i].class;i++)

    if (err_classes[i].code == err_class) {

      if (err_classes[i].err_msgs) {

	err_code_struct *err = err_classes[i].err_msgs;

	for (j=0;err[j].name;j++)

	  if (err_code == err[j].code) {

	    /* Put together the message */

	    strncpy(msg_buf, err_classes[i].class, len);
	    strncat(msg_buf, " - ", len - strlen(msg_buf));
	    strncat(msg_buf, err[j].name, len - strlen(msg_buf));
	    strncat(msg_buf, " (", len - strlen(msg_buf));
	    strncat(msg_buf, err[j].message, len - strlen(msg_buf));
	    strncat(msg_buf, ").", len - strlen(msg_buf));

	    return(strlen(msg_buf));
	  }

	/* We only get here if the error code is one we don't know about */
	/* Just print out the code etc ...                               */

	strncpy(msg_buf, err_classes[i].class, len);
	strncat(msg_buf, " - ", len - strlen(msg_buf));
	sprintf(internal_buf, "%d", err_code);
	strncat(msg_buf, internal_buf, len - strlen(msg_buf));
	strncat(msg_buf, " (Unknown error code).", len - strlen(msg_buf));

	return(strlen(msg_buf));

      }
      else {

	strncpy(msg_buf, err_classes[i].class, len);
	strncat(msg_buf, " - ", len - strlen(msg_buf));
	sprintf(internal_buf, "%d", err_code);
	strncat(msg_buf, internal_buf, len - strlen(msg_buf));

	return(strlen(msg_buf));

      }

    }

  /* If we get here, we did not recognize the error class */

  sprintf(internal_buf, "%d", err_class);
  strncat(msg_buf, internal_buf, len - strlen(msg_buf));
  strncat(msg_buf, " (Unknown Error Class) - ", len - strlen(msg_buf));
  sprintf(internal_buf, "%d", err_code);
  strncat(msg_buf, internal_buf, len - strlen(msg_buf));
  strncat(msg_buf, "(error code).", len - strlen(msg_buf));

  return(strlen(msg_buf));

}