1 /* 2 * Disktest 3 * Copyright (c) International Business Machines Corp., 2001 4 * 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 * 20 * Please send e-mail to yardleyb (at) us.ibm.com if you have 21 * questions or comments. 22 * 23 * Project Website: TBD 24 * 25 * $Id: dump.c,v 1.7 2009/02/26 12:02:22 subrata_modak Exp $ 26 * 27 */ 28 #include <stdio.h> /* *printf() */ 29 #include <string.h> /* memset(), strn***() */ 30 #include <ctype.h> /* isprint() */ 31 #include <stdlib.h> /* malloc(), free() */ 32 33 #include "defs.h" 34 #include "io.h" 35 #include "sfunc.h" 36 #include "dump.h" 37 38 int format_str(size_t iBytes, const char *ibuff, size_t ibuff_siz, char *obuff, 39 size_t obuff_siz) 40 { 41 unsigned int i; 42 char buff[10]; 43 static size_t TotalBytes = 0; 44 45 if ((iBytes == 0) && 46 (ibuff == NULL) && (ibuff_siz == 0) && 47 (obuff == NULL) && (obuff_siz == 0)) { 48 TotalBytes = 0; 49 return 0; 50 } 51 52 if ((ibuff == NULL) || (obuff == NULL) || (iBytes < 1)) 53 return -1; 54 55 memset(obuff, 0, obuff_siz); 56 sprintf(buff, "%08lX", (long)TotalBytes); 57 strncat(obuff, buff, (obuff_siz - 1) - strlen(obuff)); 58 for (i = 0; i < iBytes; i++) { 59 if ((i % 4) == 0) 60 strncat(obuff, " ", (obuff_siz - 1) - strlen(obuff)); 61 if ((i % 8) == 0) 62 strncat(obuff, " ", (obuff_siz - 1) - strlen(obuff)); 63 sprintf(buff, "%02X ", *(ibuff + i)); 64 strncat(obuff, buff, (obuff_siz - 1) - strlen(obuff)); 65 } 66 for (; i < ibuff_siz; i++) { 67 if ((i % 4) == 0) 68 strncat(obuff, " ", (obuff_siz - 1) - strlen(obuff)); 69 if ((i % 8) == 0) 70 strncat(obuff, " ", (obuff_siz - 1) - strlen(obuff)); 71 strncat(obuff, " ", (obuff_siz - 1) - strlen(obuff)); 72 } 73 strncat(obuff, " ", (obuff_siz - 1) - strlen(obuff)); 74 for (i = 0; i < iBytes; i++) { 75 sprintf(buff, "%c", 76 (isprint(*(ibuff + i))) ? *(ibuff + i) : '.'); 77 strncat(obuff, buff, (obuff_siz - 1) - strlen(obuff)); 78 } 79 TotalBytes += iBytes; 80 return 0; 81 } 82 83 int format_raw(size_t iBytes, const char *ibuff, char *obuff, size_t obuff_siz) 84 { 85 unsigned int i; 86 char buff[10]; 87 static size_t TotalBytes = 0; 88 89 if ((iBytes == 0) && (ibuff == NULL) && 90 (obuff == NULL) && (obuff_siz == 0)) { 91 TotalBytes = 0; 92 return 0; 93 } 94 95 if ((ibuff == NULL) || (obuff == NULL) || (iBytes < 1)) 96 return -1; 97 98 memset(obuff, 0, obuff_siz); 99 sprintf(buff, "%08lX ", (long)TotalBytes); 100 strncat(obuff, buff, (obuff_siz - 1) - strlen(obuff)); 101 for (i = 0; i < iBytes; i++) { 102 sprintf(buff, "%02X", *(ibuff + i)); 103 strncat(obuff, buff, (obuff_siz - 1) - strlen(obuff)); 104 } 105 TotalBytes += iBytes; 106 return 0; 107 } 108 109 int dump_data(FILE * stream, const char *buff, const size_t buff_siz, 110 const size_t ofd_siz, const size_t offset, const int format) 111 { 112 size_t TotalRemainingBytes, NumBytes, ibuff_siz, obuff_siz; 113 char *ibuff, *obuff, *buff_curr; 114 115 buff_curr = (char *)buff; 116 buff_curr += offset; 117 TotalRemainingBytes = buff_siz; 118 NumBytes = 0; 119 ibuff_siz = ofd_siz; 120 obuff_siz = 121 12 + (3 * ibuff_siz) + (ibuff_siz / 4) + (ibuff_siz / 8) + 122 ibuff_siz; 123 switch (format) { 124 case FMT_STR: 125 format_str(0, NULL, 0, NULL, 0); 126 break; 127 case FMT_RAW: 128 format_raw(0, NULL, NULL, 0); 129 break; 130 default: 131 return (-1); 132 } 133 134 if ((ibuff = (char *)ALLOC(ibuff_siz)) == NULL) { 135 fprintf(stderr, "Can't allocate ibuff\n"); 136 return (-1); 137 } 138 if ((obuff = (char *)ALLOC(obuff_siz)) == NULL) { 139 FREE(ibuff); 140 fprintf(stderr, "Can't allocate obuff\n"); 141 return (-1); 142 } 143 144 while (TotalRemainingBytes > 0) { 145 if (TotalRemainingBytes >= ibuff_siz) { 146 memcpy(ibuff, buff_curr, ibuff_siz); 147 TotalRemainingBytes -= ibuff_siz; 148 NumBytes = ibuff_siz; 149 buff_curr += NumBytes; 150 } else { 151 memcpy(ibuff, buff_curr, TotalRemainingBytes); 152 NumBytes = TotalRemainingBytes; 153 TotalRemainingBytes = 0; 154 } 155 switch (format) { 156 case FMT_STR: 157 format_str(NumBytes, ibuff, ibuff_siz, obuff, 158 obuff_siz); 159 fprintf(stream, "%s\n", obuff); 160 break; 161 case FMT_RAW: 162 format_raw(NumBytes, ibuff, obuff, obuff_siz); 163 fprintf(stream, "%s\n", obuff); 164 break; 165 default: 166 FREE(ibuff); 167 FREE(obuff); 168 return (-1); 169 } 170 } 171 FREE(ibuff); 172 FREE(obuff); 173 return 0; 174 } 175 176 int do_dump(child_args_t * args) 177 { 178 ssize_t NumBytes = 0; 179 OFF_T TargetLBA, TotalBytes = 0; 180 char *buff; 181 fd_t fd; 182 183 if ((buff = (char *)ALLOC(args->htrsiz * BLK_SIZE)) == NULL) { 184 fprintf(stderr, "Can't allocate buffer\n"); 185 return (-1); 186 } 187 188 memset(buff, 0, args->htrsiz * BLK_SIZE); 189 190 fd = Open(args->device, args->flags | CLD_FLG_R); 191 if (INVALID_FD(fd)) { 192 pMsg(ERR, args, "could not open %s.\n", args->device); 193 pMsg(ERR, args, "%s: Error = %u\n", args->device, 194 GETLASTERROR()); 195 FREE(buff); 196 return (-1); 197 } 198 199 TargetLBA = Seek(fd, args->start_lba * BLK_SIZE); 200 if (TargetLBA != (args->start_lba * (OFF_T) BLK_SIZE)) { 201 pMsg(ERR, args, "Could not seek to start position.\n"); 202 FREE(buff); 203 CLOSE(fd); 204 return (-1); 205 } 206 207 do { 208 NumBytes = Read(fd, buff, args->htrsiz * BLK_SIZE); 209 if ((NumBytes > args->htrsiz * BLK_SIZE) || (NumBytes < 0)) { 210 pMsg(ERR, args, "Failure reading %s\n", args->device); 211 pMsg(ERR, args, "Last Error was %lu\n", GETLASTERROR()); 212 break; 213 } 214 dump_data(stdout, buff, NumBytes, 16, 0, FMT_STR); 215 TotalBytes += (OFF_T) NumBytes; 216 } while ((TotalBytes < (args->htrsiz * BLK_SIZE)) && (NumBytes > 0)); 217 218 FREE(buff); 219 CLOSE(fd); 220 221 return 0; 222 } 223
