17c478bd9Sstevel@tonic-gate #ifndef errmsg_h 27c478bd9Sstevel@tonic-gate #define errmsg_h 37c478bd9Sstevel@tonic-gate 47c478bd9Sstevel@tonic-gate /* 57c478bd9Sstevel@tonic-gate * Copyright (c) 2000, 2001, 2002, 2003, 2004 by Martin C. Shepherd. 6*1da57d55SToomas Soome * 77c478bd9Sstevel@tonic-gate * All rights reserved. 8*1da57d55SToomas Soome * 97c478bd9Sstevel@tonic-gate * Permission is hereby granted, free of charge, to any person obtaining a 107c478bd9Sstevel@tonic-gate * copy of this software and associated documentation files (the 117c478bd9Sstevel@tonic-gate * "Software"), to deal in the Software without restriction, including 127c478bd9Sstevel@tonic-gate * without limitation the rights to use, copy, modify, merge, publish, 137c478bd9Sstevel@tonic-gate * distribute, and/or sell copies of the Software, and to permit persons 147c478bd9Sstevel@tonic-gate * to whom the Software is furnished to do so, provided that the above 157c478bd9Sstevel@tonic-gate * copyright notice(s) and this permission notice appear in all copies of 167c478bd9Sstevel@tonic-gate * the Software and that both the above copyright notice(s) and this 177c478bd9Sstevel@tonic-gate * permission notice appear in supporting documentation. 18*1da57d55SToomas Soome * 197c478bd9Sstevel@tonic-gate * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 207c478bd9Sstevel@tonic-gate * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 217c478bd9Sstevel@tonic-gate * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT 227c478bd9Sstevel@tonic-gate * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 237c478bd9Sstevel@tonic-gate * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL 247c478bd9Sstevel@tonic-gate * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING 257c478bd9Sstevel@tonic-gate * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 267c478bd9Sstevel@tonic-gate * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 277c478bd9Sstevel@tonic-gate * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 28*1da57d55SToomas Soome * 297c478bd9Sstevel@tonic-gate * Except as contained in this notice, the name of a copyright holder 307c478bd9Sstevel@tonic-gate * shall not be used in advertising or otherwise to promote the sale, use 317c478bd9Sstevel@tonic-gate * or other dealings in this Software without prior written authorization 327c478bd9Sstevel@tonic-gate * of the copyright holder. 337c478bd9Sstevel@tonic-gate */ 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate /* 367c478bd9Sstevel@tonic-gate * Set the longest expected length of an error message (excluding its 377c478bd9Sstevel@tonic-gate * '\0' terminator. Since any message over a nominal terminal width of 387c478bd9Sstevel@tonic-gate * 80 characters is going to look a mess, it makes no sense to support 397c478bd9Sstevel@tonic-gate * huge lengths. Note that many uses of strings declared with this 407c478bd9Sstevel@tonic-gate * macro assume that it will be at least 81, so don't reduce it below 417c478bd9Sstevel@tonic-gate * this limit. 427c478bd9Sstevel@tonic-gate */ 437c478bd9Sstevel@tonic-gate #define ERR_MSG_LEN 128 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate /* 467c478bd9Sstevel@tonic-gate * Provide an opaque typedef to the error-message object. 477c478bd9Sstevel@tonic-gate */ 487c478bd9Sstevel@tonic-gate typedef struct ErrMsg ErrMsg; 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate /* 517c478bd9Sstevel@tonic-gate * The following token is used to terminate the argument lists of calls 527c478bd9Sstevel@tonic-gate * to _err_record_msg(). 537c478bd9Sstevel@tonic-gate */ 547c478bd9Sstevel@tonic-gate #define END_ERR_MSG ((const char *)0) 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate /* 577c478bd9Sstevel@tonic-gate * Allocate a new error-message buffer. 587c478bd9Sstevel@tonic-gate */ 597c478bd9Sstevel@tonic-gate ErrMsg *_new_ErrMsg(void); 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate /* 627c478bd9Sstevel@tonic-gate * Delete an error message buffer. 637c478bd9Sstevel@tonic-gate */ 647c478bd9Sstevel@tonic-gate ErrMsg *_del_ErrMsg(ErrMsg *err); 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate /* 677c478bd9Sstevel@tonic-gate * Concatenate a list of string arguments into the specified buffer, buff[], 687c478bd9Sstevel@tonic-gate * which has an allocated size of buffdim characters. 697c478bd9Sstevel@tonic-gate * The last argument must be END_ERR_MSG to terminate the argument list. 707c478bd9Sstevel@tonic-gate */ 717c478bd9Sstevel@tonic-gate void _err_record_msg(ErrMsg *err, ...); 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate /* 747c478bd9Sstevel@tonic-gate * Replace the current error message with an empty string. 757c478bd9Sstevel@tonic-gate */ 767c478bd9Sstevel@tonic-gate void _err_clear_msg(ErrMsg *err); 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate /* 797c478bd9Sstevel@tonic-gate * Return a pointer to the error message buffer. This is 807c478bd9Sstevel@tonic-gate * a '\0' terminated character array containing ERR_MSG_LEN+1 817c478bd9Sstevel@tonic-gate * elements. 827c478bd9Sstevel@tonic-gate */ 837c478bd9Sstevel@tonic-gate char *_err_get_msg(ErrMsg *err); 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate #endif 86