diff options
Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -49,6 +49,7 @@ int exec_shield; int undo, verify; enum verify_method_t verify_method; int quick; +int compute_checksum; long long seed; GElf_Addr mmap_reg_start = ~(GElf_Addr) 0; GElf_Addr mmap_reg_end = ~(GElf_Addr) 0; @@ -74,6 +75,7 @@ static char argp_doc[] = "prelink -- program to relocate and prelink ELF shared #define OPT_SEED 0x88 #define OPT_MD5 0x89 #define OPT_SHA 0x8a +#define OPT_COMPUTE_CHECKSUM 0x8b static struct argp_option options[] = { {"all", 'a', 0, 0, "Prelink all binaries" }, @@ -105,6 +107,7 @@ static struct argp_option options[] = { {"mmap-region-start", OPT_MMAP_REG_START, "BASE_ADDRESS", OPTION_HIDDEN, "" }, {"mmap-region-end", OPT_MMAP_REG_END, "BASE_ADDRESS", OPTION_HIDDEN, "" }, {"seed", OPT_SEED, "SEED", OPTION_HIDDEN, "" }, + {"compute-checksum", OPT_COMPUTE_CHECKSUM, 0, OPTION_HIDDEN, "" }, { 0 } }; @@ -206,6 +209,9 @@ parse_opt (int key, char *arg, struct argp_state *state) case OPT_NO_EXEC_SHIELD: exec_shield = 0; break; + case OPT_COMPUTE_CHECKSUM: + compute_checksum = 1; + break; default: return ARGP_ERR_UNKNOWN; } @@ -255,6 +261,20 @@ main (int argc, char *argv[]) if (remaining == argc && ! all) error (EXIT_FAILURE, 0, "no files given and --all not used"); + if (compute_checksum) + { + while (remaining < argc) + { + DSO *dso = open_dso (argv[remaining++]); + + if (dso == NULL || reopen_dso (dso, NULL) || prelink_set_checksum (dso)) + error (0, 0, "could not recompute checksum of %s", dso->filename); + close_dso (dso); + error (0, 0, "%08x %s\n", (unsigned int) dso->info_DT_CHECKSUM, dso->filename); + } + exit (0); + } + if (verify) { if (remaining + 1 != argc) @@ -296,6 +316,7 @@ main (int argc, char *argv[]) } if (dynamic_info_is_set (dso, DT_CHECKSUM_BIT) + && dso_is_rdwr (dso) && prelink_set_checksum (dso)) { ++failures; |