file2swp.c revision 1.2.6.2
1 /* $NetBSD: file2swp.c,v 1.2.6.2 2002/06/23 17:35:21 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include <sys/types.h> 37 #include <stdlib.h> 38 #include <string.h> 39 #include <fcntl.h> 40 #include <unistd.h> 41 #include "libtos.h" 42 #include "diskio.h" 43 #include "ahdilbl.h" 44 #include "disklbl.h" 45 #include "cread.h" 46 47 char *Infile = "minifs.gz"; 48 const char version[] = "$Revision: 1.2.6.2 $"; 49 50 extern const char *program_name; 51 52 int main PROTO((int, char **)); 53 static int check_bsdlabel PROTO((disk_t *,u_int32_t,u_int32_t *,u_int32_t *)); 54 static int readdisklabel PROTO((disk_t *, u_int32_t *, u_int32_t *)); 55 static void usage PROTO((void)) NORETURN; 56 57 static void 58 usage() 59 { 60 eprintf("Usage: %s [OPTIONS] DISK\n" 61 "where OPTIONS are:\n" 62 "\t-V display version information\n" 63 "\t-f FILE File to copy. The FILE may be a gzipped file.\n" 64 "\t If not specified, it defaults to minifs.gz.\n" 65 "\t-h display this help and exit\n" 66 "\t-o FILE send output to FILE instead of stdout\n" 67 "\t-w wait for key press before exiting\n\n" 68 "DISK is the concatenation of BUS, TARGET and LUN.\n" 69 "BUS is one of `i' (IDE), `a' (ACSI) or `s' (SCSI).\n" 70 "TARGET and LUN are one decimal digit each. LUN must\n" 71 "not be specified for IDE devices and is optional for\n" 72 "ACSI/SCSI devices (if omitted, LUN defaults to 0).\n\n" 73 "Examples: a0 refers to ACSI target 0 lun 0\n" 74 " s21 refers to SCSI target 2 lun 1\n" 75 , program_name); 76 xexit(EXIT_SUCCESS); 77 } 78 79 int 80 main(argc, argv) 81 int argc; 82 char **argv; 83 { 84 extern int optind; 85 extern char *optarg; 86 87 disk_t *dd; 88 int rv, c, i, fd; 89 u_int32_t currblk; 90 u_int32_t start, end; 91 char buf[AHDI_BSIZE]; 92 93 i = rv = 0; 94 init_toslib(*argv); 95 96 while ((c = getopt(argc, argv, "Vf:ho:w")) != -1) { 97 switch (c) { 98 case 'f': 99 Infile = optarg; 100 break; 101 case 'o': 102 redirect_output(optarg); 103 break; 104 case 'w': 105 set_wait_for_key(); 106 break; 107 case 'V': 108 error(-1, "%s", version); 109 break; 110 /* NOT REACHED */ 111 case 'h': 112 default: 113 usage(); 114 /* NOT REACHED */ 115 } 116 } 117 argv += optind; 118 119 if (!*argv) { 120 error(-1, "missing DISK argument"); 121 usage(); 122 /* NOT REACHED */ 123 } 124 dd = disk_open(*argv); 125 126 if (readdisklabel(dd, &start, &end) != 0) 127 xexit(1); 128 129 if ((fd = open(Infile, O_RDONLY)) < 0) { 130 eprintf("Unable to open <%s>\n", Infile); 131 xexit(1); 132 } 133 134 switch(key_wait("Are you sure (y/n)? ")) { 135 case 'y': 136 case 'Y': 137 currblk = start; 138 while(c = read(fd, buf, sizeof(buf)) > 0) { 139 if (disk_write(dd, currblk, 1, buf) < 0) { 140 eprintf("Error writing to swap partition\n"); 141 xexit(1); 142 } 143 if (++currblk >= end) { 144 eprintf("Error: filesize exceeds swap " 145 "partition size\n"); 146 xexit(1); 147 } 148 } 149 close(fd); 150 eprintf("Ready\n"); 151 xexit(0); 152 break; 153 default : 154 eprintf("Aborted\n"); 155 break; 156 } 157 rv = EXIT_FAILURE; 158 return(rv); 159 } 160 161 static int 162 check_bsdlabel(dd, offset, start, end) 163 disk_t *dd; 164 u_int32_t offset, *start, *end; 165 { 166 struct disklabel dl; 167 int err; 168 169 err = bsd_getlabel(dd, &dl, offset); 170 if (err < 0) { 171 eprintf("Device I/O error (hardware problem?)\n\n"); 172 return (-1); 173 } 174 if (!err) { 175 if (dl.d_partitions[1].p_size > 0) { 176 *start = dl.d_partitions[1].p_offset; 177 *end = *start + dl.d_partitions[1].p_size-1; 178 eprintf("NetBSD/Atari format%s, Swap partition start:%d, end:%d\n", 179 offset != 0 ? " (embedded)" : "", *start, *end); 180 return (0); 181 } 182 eprintf("NetBSD/Atari format: no swap defined\n"); 183 } 184 return 1; 185 } 186 187 static int 188 readdisklabel(dd, start, end) 189 disk_t *dd; 190 u_int32_t *start, *end; 191 { 192 ptable_t pt; 193 int err, i; 194 195 196 err = check_bsdlabel(dd, LABELSECTOR, start, end); 197 if (err != 1) 198 return (err); 199 memset(&pt, 0, sizeof(pt)); 200 err = ahdi_getparts(dd, &pt, AHDI_BBLOCK, AHDI_BBLOCK); 201 if (err < 0) { 202 eprintf("Device I/O error (hardware problem?)\n\n"); 203 return (-1); 204 } 205 if (!err) { 206 /* 207 * Check for hidden BSD labels 208 */ 209 for (i = 0; i < pt.nparts; i++) { 210 if (!strncmp(pt.parts[i].id, "NBD", 3)) { 211 err = check_bsdlabel(dd, pt.parts[i].start, start, end); 212 if (err != 1) 213 return (err); 214 } 215 } 216 for (i = 0; i < pt.nparts; i++) { 217 if (!strncmp(pt.parts[i].id, "SWP", 3)) 218 break; 219 } 220 if (i < pt.nparts) { 221 *start = pt.parts[i].start; 222 *end = pt.parts[i].end; 223 eprintf("AHDI format, SWP partition: start:%d,end: %d\n", 224 *start, *end); 225 return (0); 226 } 227 eprintf("AHDI format, no swap ('SWP') partition found!\n"); 228 } 229 eprintf("Unknown label format.\n\n"); 230 return(-1); 231 } 232
Indexes created Tue Sep 30 17:09:57 GMT 2025