1// 2// errors.c - error & help routines 3// 4// Written by Eryk Vershen 5// 6 7/* 8 * Copyright 1996,1997,1998 by Apple Computer, Inc. 9 * All Rights Reserved 10 * 11 * Permission to use, copy, modify, and distribute this software and 12 * its documentation for any purpose and without fee is hereby granted, 13 * provided that the above copyright notice appears in all copies and 14 * that both the copyright notice and this permission notice appear in 15 * supporting documentation. 16 * 17 * APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 18 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 19 * FOR A PARTICULAR PURPOSE. 20 * 21 * IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 22 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 23 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 24 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 25 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 26 */ 27 28// for *printf() 29#include <stdio.h> 30#include <errno.h> 31 32// for exit() 33#ifndef __linux__ 34#include <stdlib.h> 35#endif 36// for strrchr 37#include <string.h> 38 39// for va_start(), etc. 40#include <stdarg.h> 41 42#include "errors.h" 43 44 45// 46// Defines 47// 48 49 50// 51// Types 52// 53 54 55// 56// Global Constants 57// 58 59 60// 61// Global Variables 62// 63char *program_name; 64#ifdef NeXT 65extern int errno; 66extern int sys_nerr; 67extern const char * const sys_errlist[]; 68#endif 69 70 71// 72// Forward declarations 73// 74 75 76// 77// Routines 78// 79void 80init_program_name(char **argv) 81{ 82#if defined(__linux__) || defined(__unix__) 83 if ((program_name = strrchr(argv[0], '/')) != (char *)NULL) { 84 program_name++; 85 } else { 86 program_name = argv[0]; 87 } 88#else 89 program_name = "pdisk"; 90#endif 91} 92 93 94void 95do_help() 96{ 97 printf("\t%s [-h|--help]\n", program_name); 98 printf("\t%s [-v|--version]\n", program_name); 99#ifdef __linux__ 100 printf("\t%s [-l|--list [name]] [...]\n", program_name); 101#else 102 printf("\t%s [-l|--list] name [...]\n", program_name); 103#endif 104 printf("\t%s [-r|--readonly] name ...\n", program_name); 105 printf("\t%s [-i|--interactive]\n", program_name); 106 printf("\t%s name [...]\n", program_name); 107/* 108 {"debug", no_argument, 0, 'd'}, 109 {"abbr", no_argument, 0, 'a'}, 110 {"fs", no_argument, 0, 'f'}, 111 {"logical", no_argument, 0, kLogicalOption}, 112 {"compute_size", no_argument, 0, 'c'}, 113*/ 114} 115 116 117void 118usage(const char *kind) 119{ 120 error(-1, "bad usage - %s\n", kind); 121 hflag = 1; 122} 123 124 125// 126// Print a message on standard error and exit with value. 127// Values in the range of system error numbers will add 128// the perror(3) message. 129// 130void 131fatal(int value, const char *fmt, ...) 132{ 133 va_list ap; 134 135 fprintf(stderr, "%s: ", program_name); 136 va_start(ap, fmt); 137 vfprintf(stderr, fmt, ap); 138 va_end(ap); 139 140#if defined(__linux__) || defined(NeXT) || defined(__unix__) 141 if (value > 0 && value < sys_nerr) { 142 fprintf(stderr, " (%s)\n", sys_errlist[value]); 143 } else { 144 fprintf(stderr, "\n"); 145 } 146#else 147 fprintf(stderr, "\n"); 148 printf("Processing stopped: Choose 'Quit' from the file menu to quit.\n\n"); 149#endif 150 exit(value); 151} 152 153 154// 155// Print a message on standard error. 156// Values in the range of system error numbers will add 157// the perror(3) message. 158// 159void 160error(int value, const char *fmt, ...) 161{ 162 va_list ap; 163 164 fprintf(stderr, "%s: ", program_name); 165 va_start(ap, fmt); 166 vfprintf(stderr, fmt, ap); 167 va_end(ap); 168 169#if defined(__linux__) || defined(NeXT) || defined(__unix__) 170 if (value > 0 && value < sys_nerr) { 171 fprintf(stderr, " (%s)\n", sys_errlist[value]); 172 } else { 173 fprintf(stderr, "\n"); 174 } 175#else 176 fprintf(stderr, "\n"); 177#endif 178} 179