/[gentoo-projects]/pax-utils/dumpelf.c
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Diff of /pax-utils/dumpelf.c

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Revision 1.8 Revision 1.9
1/* 1/*
2 * Copyright 2005 Gentoo Foundation 2 * Copyright 2005 Gentoo Foundation
3 * Distributed under the terms of the GNU General Public License v2 3 * Distributed under the terms of the GNU General Public License v2
4 * $Header: /var/cvsroot/gentoo-projects/pax-utils/dumpelf.c,v 1.8 2005/06/03 03:25:38 vapier Exp $ 4 * $Header: /var/cvsroot/gentoo-projects/pax-utils/dumpelf.c,v 1.9 2005/06/03 04:04:09 vapier Exp $
5 */ 5 */
6 6
7#include <stdio.h> 7#include <stdio.h>
8#include <stdlib.h> 8#include <stdlib.h>
9#include <sys/types.h> 9#include <sys/types.h>
… …
13#include <unistd.h> 13#include <unistd.h>
14#include <sys/stat.h> 14#include <sys/stat.h>
15#include <dirent.h> 15#include <dirent.h>
16#include <getopt.h> 16#include <getopt.h>
17#include <assert.h> 17#include <assert.h>
18#include <ctype.h>
18 19
19#include "paxelf.h" 20#include "paxelf.h"
20 21
21static const char *rcsid = "$Id: dumpelf.c,v 1.8 2005/06/03 03:25:38 vapier Exp $"; 22static const char *rcsid = "$Id: dumpelf.c,v 1.9 2005/06/03 04:04:09 vapier Exp $";
22#define argv0 "dumpelf" 23#define argv0 "dumpelf"
23 24
24/* prototypes */ 25/* prototypes */
25static void dumpelf(const char *filename, long file_cnt); 26static void dumpelf(const char *filename, long file_cnt);
26static void dump_ehdr(elfobj *elf, void *ehdr); 27static void dump_ehdr(elfobj *elf, void *ehdr);
… …
36static void parseargs(int argc, char *argv[]); 37static void parseargs(int argc, char *argv[]);
37 38
38 39
39 40
40/* variables to control behavior */ 41/* variables to control behavior */
41 /* none yet ! */ 42static char be_verbose = 0;
42 43
43 44
44 45
45/* dump all internal elf info */ 46/* dump all internal elf info */
46static void dumpelf(const char *filename, long file_cnt) 47static void dumpelf(const char *filename, long file_cnt)
… …
184 DUMP_PHDR(32) 185 DUMP_PHDR(32)
185 DUMP_PHDR(64) 186 DUMP_PHDR(64)
186} 187}
187static void dump_shdr(elfobj *elf, void *shdr_void, long shdr_cnt, char *name) 188static void dump_shdr(elfobj *elf, void *shdr_void, long shdr_cnt, char *name)
188{ 189{
190 unsigned long i;
189#define DUMP_SHDR(B) \ 191#define DUMP_SHDR(B) \
190 if (elf->elf_class == ELFCLASS ## B) { \ 192 if (elf->elf_class == ELFCLASS ## B) { \
191 Elf ## B ## _Shdr *shdr = SHDR ## B (shdr_void); \ 193 Elf ## B ## _Shdr *shdr = SHDR ## B (shdr_void); \
194 uint32_t type = EGET(shdr->sh_type); \
195 uint ## B ## _t size = EGET(shdr->sh_size); \
192 printf("/* Section Header #%li '%s' 0x%lX */\n{\n", \ 196 printf("/* Section Header #%li '%s' 0x%lX */\n{\n", \
193 shdr_cnt, name, (unsigned long)shdr_void - (unsigned long)elf->data); \ 197 shdr_cnt, name, (unsigned long)shdr_void - (unsigned long)elf->data); \
194 printf("\t.sh_name = %-10i ,\n", (int)EGET(shdr->sh_name)); \ 198 printf("\t.sh_name = %-10i ,\n", (int)EGET(shdr->sh_name)); \
195 printf("\t.sh_type = %-10i ,\n", (int)EGET(shdr->sh_type)); \ 199 printf("\t.sh_type = %-10i , /* [%s] */\n", (int)EGET(shdr->sh_type), get_elfshttype(type)); \
196 printf("\t.sh_flags = %-10li ,\n", (long)EGET(shdr->sh_flags)); \ 200 printf("\t.sh_flags = %-10li ,\n", (long)EGET(shdr->sh_flags)); \
197 printf("\t.sh_addr = 0x%-8lX ,\n", (unsigned long)EGET(shdr->sh_addr)); \ 201 printf("\t.sh_addr = 0x%-8lX ,\n", (unsigned long)EGET(shdr->sh_addr)); \
198 printf("\t.sh_offset = %-10i , /* (bytes) */\n", (int)EGET(shdr->sh_offset)); \ 202 printf("\t.sh_offset = %-10i , /* (bytes) */\n", (int)EGET(shdr->sh_offset)); \
199 printf("\t.sh_size = %-10li , /* (bytes) */\n", (long)EGET(shdr->sh_size)); \ 203 printf("\t.sh_size = %-10li , /* (bytes) */\n", (long)EGET(shdr->sh_size)); \
200 printf("\t.sh_link = %-10i ,\n", (int)EGET(shdr->sh_link)); \ 204 printf("\t.sh_link = %-10i ,\n", (int)EGET(shdr->sh_link)); \
201 printf("\t.sh_info = %-10i ,\n", (int)EGET(shdr->sh_info)); \ 205 printf("\t.sh_info = %-10i ,\n", (int)EGET(shdr->sh_info)); \
202 printf("\t.sh_addralign = %-10li ,\n", (long)EGET(shdr->sh_addralign)); \ 206 printf("\t.sh_addralign = %-10li ,\n", (long)EGET(shdr->sh_addralign)); \
203 printf("\t.sh_entsize = %-10li\n", (long)EGET(shdr->sh_entsize)); \ 207 printf("\t.sh_entsize = %-10li\n", (long)EGET(shdr->sh_entsize)); \
208 if (size && \
209 ((be_verbose && type == SHT_STRTAB) || \
210 (be_verbose > 1))) { \
211 unsigned char *data = (unsigned char*)(elf->data + EGET(shdr->sh_offset)); \
212 char bool; \
213 printf("\n\t/* section dump:\n"); \
214 if (type == SHT_STRTAB) { \
215 bool = 1; \
216 for (i = 0; i < size; ++i) { \
217 ++data; \
218 if (*data) { \
219 if (bool) printf("\t * "); \
220 printf("%c", *data); \
221 bool = 0; \
222 } else if (!bool) { \
223 printf("\n"); \
224 bool = 1; \
225 } \
226 } \
227 } else { \
228 for (i = 0; i < size; ++i) { \
229 ++data; \
230 if (i % 20 == 0) printf("\t * "); \
231 printf("%.2X ", *data); \
232 if (i % 20 == 19) printf("\n"); \
233 } \
234 if (i % 20) printf("\n"); \
235 } \
236 printf("\t */\n"); \
237 } \
204 printf("}"); \ 238 printf("}"); \
205 } 239 }
206 DUMP_SHDR(32) 240 DUMP_SHDR(32)
207 DUMP_SHDR(64) 241 DUMP_SHDR(64)
208} 242}
209 243
210 244
211 245
212/* usage / invocation handling functions */ 246/* usage / invocation handling functions */
213#define PARSE_FLAGS "hV" 247#define PARSE_FLAGS "vhV"
214#define a_argument required_argument 248#define a_argument required_argument
215static struct option const long_opts[] = { 249static struct option const long_opts[] = {
250 {"verbose", no_argument, NULL, 'v'},
216 {"help", no_argument, NULL, 'h'}, 251 {"help", no_argument, NULL, 'h'},
217 {"version", no_argument, NULL, 'V'}, 252 {"version", no_argument, NULL, 'V'},
218 {NULL, no_argument, NULL, 0x0} 253 {NULL, no_argument, NULL, 0x0}
219}; 254};
220static char *opts_help[] = { 255static char *opts_help[] = {
256 "Be verbose (can be specified more than once)",
221 "Print this help and exit", 257 "Print this help and exit",
222 "Print version and exit", 258 "Print version and exit",
223 NULL 259 NULL
224}; 260};
225 261
… …
255 __FILE__, __DATE__, rcsid, argv0); 291 __FILE__, __DATE__, rcsid, argv0);
256 exit(EXIT_SUCCESS); 292 exit(EXIT_SUCCESS);
257 break; 293 break;
258 case 'h': usage(EXIT_SUCCESS); break; 294 case 'h': usage(EXIT_SUCCESS); break;
259 295
296 case 'v': be_verbose = (be_verbose % 20) + 1; break;
297
260 case ':': 298 case ':':
261 warn("Option missing parameter"); 299 err("Option missing parameter");
262 usage(EXIT_FAILURE);
263 break;
264 case '?': 300 case '?':
265 warn("Unknown option"); 301 err("Unknown option");
266 usage(EXIT_FAILURE);
267 break;
268 default: 302 default:
269 err("Unhandled option '%c'", flag); 303 err("Unhandled option '%c'", flag);
270 break;
271 } 304 }
272 } 305 }
273 306
274 if (optind == argc) 307 if (optind == argc)
275 err("Nothing to dump !?"); 308 err("Nothing to dump !?");
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