diff options
author | Simon J. Gerraty <sjg@FreeBSD.org> | 2015-05-27 01:19:58 +0000 |
---|---|---|
committer | Simon J. Gerraty <sjg@FreeBSD.org> | 2015-05-27 01:19:58 +0000 |
commit | 98e0ffaefb0f241cda3a72395d3be04192ae0d47 (patch) | |
tree | 55c065b6730aaac2afb6c29933ee6ec5fa4c4249 /usr.bin/elfdump | |
parent | b17ff922d4072ae132ece458f5b5d74a236880ac (diff) | |
parent | e81032ad243db32b8fd615b2d55ee94b9f6a5b6a (diff) | |
download | src-test2-98e0ffaefb0f241cda3a72395d3be04192ae0d47.tar.gz src-test2-98e0ffaefb0f241cda3a72395d3be04192ae0d47.zip |
Notes
Diffstat (limited to 'usr.bin/elfdump')
-rw-r--r-- | usr.bin/elfdump/elfdump.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/usr.bin/elfdump/elfdump.c b/usr.bin/elfdump/elfdump.c index bf9b7183ac8e..cd10ce3141d3 100644 --- a/usr.bin/elfdump/elfdump.c +++ b/usr.bin/elfdump/elfdump.c @@ -29,12 +29,15 @@ __FBSDID("$FreeBSD$"); #include <sys/types.h> + +#include <sys/capsicum.h> #include <sys/elf32.h> #include <sys/elf64.h> #include <sys/endian.h> #include <sys/mman.h> #include <sys/stat.h> #include <err.h> +#include <errno.h> #include <fcntl.h> #include <inttypes.h> #include <stddef.h> @@ -258,6 +261,7 @@ e_machines(u_int mach) case EM_386: return "EM_386"; case EM_68K: return "EM_68K"; case EM_88K: return "EM_88K"; + case EM_IAMCU: return "EM_IAMCU"; case EM_860: return "EM_860"; case EM_MIPS: return "EM_MIPS"; case EM_PPC: return "EM_PPC"; @@ -467,6 +471,7 @@ elf_get_shstrndx(Elf32_Ehdr *e, void *sh) int main(int ac, char **av) { + cap_rights_t rights; u_int64_t phoff; u_int64_t shoff; u_int64_t phentsize; @@ -527,6 +532,9 @@ main(int ac, char **av) case 'w': if ((out = fopen(optarg, "w")) == NULL) err(1, "%s", optarg); + cap_rights_init(&rights, CAP_FSTAT, CAP_WRITE); + if (cap_rights_limit(fileno(out), &rights) < 0 && errno != ENOSYS) + err(1, "unable to limit rights for %s", optarg); break; case '?': default: @@ -539,6 +547,17 @@ main(int ac, char **av) if ((fd = open(*av, O_RDONLY)) < 0 || fstat(fd, &sb) < 0) err(1, "%s", *av); + cap_rights_init(&rights, CAP_MMAP_R); + if (cap_rights_limit(fd, &rights) < 0 && errno != ENOSYS) + err(1, "unable to limit rights for %s", *av); + close(STDIN_FILENO); + cap_rights_init(&rights, CAP_WRITE); + if (cap_rights_limit(STDOUT_FILENO, &rights) < 0 && errno != ENOSYS) + err(1, "unable to limit rights for stdout"); + if (cap_rights_limit(STDERR_FILENO, &rights) < 0 && errno != ENOSYS) + err(1, "unable to limit rights for stderr"); + if (cap_enter() < 0 && errno != ENOSYS) + err(1, "unable to enter capability mode"); e = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd, 0); if (e == MAP_FAILED) err(1, NULL); |