void usage(void)
{
int i;
version();
printf("Usage: kexec [OPTION]... [kernel]\n"
"Directly reboot into a new kernel\n"
"\n"
" -h, --help Print this help.\n"
" -v, --version Print the version of kexec.\n"
" -f, --force Force an immediate kexec,\n"
" don't call shutdown.\n"
" -x, --no-ifdown Don't bring down network interfaces.\n"
" (if used, must be last option\n"
" specified)\n"
" -l, --load Load the new kernel into the\n"
" current kernel.\n"
" -p, --load-panic Load the new kernel for use on panic.\n"
" -u, --unload Unload the current kexec target kernel.\n"
" If capture kernel is being unloaded\n"
" specify -p with -u.\n"
" -e, --exec Execute a currently loaded kernel.\n"
" -t, --type=TYPE Specify the new kernel is of this type.\n"
" --mem-min=<addr> Specify the lowest memory address to\n"
" load code into.\n"
" --mem-max=<addr> Specify the highest memory address to\n"
" load code into.\n"
" --reuseinird Reuse initrd from first boot.\n"
"\n"
"Supported kernel file types and options: \n");
for (i = 0; i < file_types; i++) {
printf("%s\n", file_type[i].name);
file_type[i].usage();
}
printf( "Architecture options: \n");
arch_usage();
printf("\n");
}
int
main(
int argc,
char **argv,
char **envp)
{
int i;
unsigned long j;
struct arch_flag *arch_flags;
unsigned long narch_flags;
enum bool all_archs;
char **files;
progname = argv[0];
arch_flags = NULL;
narch_flags = 0;
all_archs = FALSE;
output = stdout;
cmd_flags.nfiles = 0;
cmd_flags.c = FALSE;
cmd_flags.x = FALSE;
cmd_flags.ofile_name = NULL;
cmd_flags.ofile_path = NULL;
files = allocate(sizeof(char *) * argc);
for(i = 1; i < argc; i++){
if(argv[i][0] == '-'){
if(argv[i][1] == '\0'){
for( ; i < argc; i++)
files[cmd_flags.nfiles++] = argv[i];
break;
}
if(strcmp(argv[i], "-arch") == 0){
if(i + 1 == argc){
error("missing argument(s) to %s option", argv[i]);
usage();
}
if(strcmp("all", argv[i+1]) == 0){
all_archs = TRUE;
}
else{
arch_flags = reallocate(arch_flags,
(narch_flags + 1) * sizeof(struct arch_flag));
if(get_arch_from_flag(argv[i+1],
arch_flags + narch_flags) == 0){
error("unknown architecture specification flag: "
"%s %s", argv[i], argv[i+1]);
arch_usage();
usage();
}
narch_flags++;
}
i++;
}
else{
for(j = 1; argv[i][j] != '\0'; j++){
switch(argv[i][j]){
case 'c':
cmd_flags.c = TRUE;
break;
case 'x':
cmd_flags.x = TRUE;
break;
case 'n':
cmd_flags.n = TRUE;
break;
case 'o':
cmd_flags.o = TRUE;
break;
default:
error("invalid argument -%c", argv[i][j]);
usage();
}
}
if(cmd_flags.n == TRUE && cmd_flags.ofile_name == NULL){
if(i + 1 == argc){
error("missing arguments to -n");
usage();
}
cmd_flags.ofile_name = upper_string(argv[i+1]);
i += 1;
}
if(cmd_flags.o == TRUE && cmd_flags.ofile_path == NULL){
if(i + 1 == argc){
error("missing arguments to -o");
usage();
}
cmd_flags.ofile_path = argv[i+1];
i += 1;
}
}
continue;
}
files[cmd_flags.nfiles++] = argv[i];
}
if (cmd_flags.ofile_name == NULL) {
if (cmd_flags.nfiles == 0)
cmd_flags.ofile_name = upper_string("a.out");
else
cmd_flags.ofile_name = upper_string(files[0]);
}
if (cmd_flags.o == TRUE) {
output = fopen(cmd_flags.ofile_path, "w");
if (output == NULL) {
error("couldn't open output file %s\n",cmd_flags.ofile_path);
output = stdout;
}
}
for(j = 0; j < cmd_flags.nfiles; j++)
ofile_process(files[j], arch_flags, narch_flags, all_archs, FALSE,
FALSE, TRUE, nm, &cmd_flags);
if(cmd_flags.nfiles == 0)
ofile_process("a.out", arch_flags, narch_flags, all_archs, FALSE,
FALSE, TRUE, nm, &cmd_flags);
if (cmd_flags.ofile_name != NULL)
free(cmd_flags.ofile_name);
if(errors == 0)
return(EXIT_SUCCESS);
else
return(EXIT_FAILURE);
}
/*
* The codesign_allocate(1) tool has the following usage:
*
* codesign_allocate -i oldfile -a arch size ... -o newfile
*
* Where the oldfile is a Mach-O file that is input for the dynamic linker
* and it creates or adds an
*/
int
main(
int argc,
char **argv,
char **envp)
{
uint32_t i;
char *input, *output, *endp;
struct arch *archs;
uint32_t narchs;
progname = argv[0];
input = NULL;
output = NULL;
archs = NULL;
narchs = 0;
for(i = 1; i < argc; i++) {
if(strcmp(argv[i], "-i") == 0) {
if(i + 1 == argc) {
error("missing argument to: %s option", argv[i]);
usage();
}
if(input != NULL) {
error("more than one: %s option specified", argv[i]);
usage();
}
input = argv[i+1];
i++;
}
else if(strcmp(argv[i], "-o") == 0) {
if(i + 1 == argc) {
error("missing argument to: %s option", argv[i]);
usage();
}
if(output != NULL) {
error("more than one: %s option specified", argv[i]);
usage();
}
output = argv[i+1];
i++;
}
else if(strcmp(argv[i], "-a") == 0) {
if(i + 2 == argc) {
error("missing argument(s) to: %s option", argv[i]);
usage();
}
else {
arch_signs = reallocate(arch_signs,
(narch_signs + 1) * sizeof(struct arch_sign));
if(get_arch_from_flag(argv[i+1],
&(arch_signs[narch_signs].arch_flag)) == 0) {
error("unknown architecture specification flag: "
"%s %s %s", argv[i], argv[i+1], argv[i+2]);
arch_usage();
usage();
}
arch_signs[narch_signs].datasize =
strtoul(argv[i+2], &endp, 0);
if(*endp != '\0')
fatal("size for '-a %s %s' not a proper number",
argv[i+1], argv[i+2]);
if((arch_signs[narch_signs].datasize % 16) != 0)
fatal("size for '-a %s %s' not a multiple of 16",
argv[i+1], argv[i+2]);
arch_signs[narch_signs].found = FALSE;
narch_signs++;
i += 2;
}
}
else if(strcmp(argv[i], "-A") == 0) {
if(i + 3 == argc) {
error("missing argument(s) to: %s option", argv[i]);
usage();
}
else {
arch_signs = reallocate(arch_signs,
(narch_signs + 1) * sizeof(struct arch_sign));
arch_signs[narch_signs].arch_flag.cputype =
strtoul(argv[i+1], &endp, 0);
if(*endp != '\0')
fatal("cputype for '-A %s %s %s' not a proper number",
argv[i+1], argv[i+2], argv[i+3]);
arch_signs[narch_signs].arch_flag.cpusubtype =
strtoul(argv[i+2], &endp, 0);
if(*endp != '\0')
fatal("cpusubtype for '-A %s %s %s' not a proper "
"number", argv[i+1], argv[i+2], argv[i+3]);
arch_signs[narch_signs].arch_flag.name = (char *)
get_arch_name_from_types(
arch_signs[narch_signs].arch_flag.cputype,
arch_signs[narch_signs].arch_flag.cpusubtype);
arch_signs[narch_signs].datasize =
strtoul(argv[i+3], &endp, 0);
if(*endp != '\0')
fatal("size for '-A %s %s %s' not a proper number",
argv[i+1], argv[i+2], argv[i+3]);
if((arch_signs[narch_signs].datasize % 16) != 0)
fatal("size for '-A %s %s %s' not a multiple of 16",
argv[i+1], argv[i+2], argv[i+3]);
arch_signs[narch_signs].found = FALSE;
narch_signs++;
i += 3;
}
}
else {
error("unknown flag: %s", argv[i]);
usage();
}
}
if(input == NULL || output == NULL || narch_signs == 0)
usage();
breakout(input, &archs, &narchs, FALSE);
if(errors)
exit(EXIT_FAILURE);
checkout(archs, narchs);
process(archs, narchs);
for(i = 0; i < narch_signs; i++) {
if(arch_signs[i].found == FALSE)
fatal("input file: %s does not contain a matching architecture "
"for specified '-a %s %u' option", input,
arch_signs[i].arch_flag.name, arch_signs[i].datasize);
}
writeout(archs, narchs, output, 0777, TRUE, FALSE, FALSE, NULL);
if(errors)
return(EXIT_FAILURE);
else
return(EXIT_SUCCESS);
}
/*
* The ctf_insert(1) tool has the following usage:
*
* ctf_insert input -arch arch ctf_file ... -o output
*
* Where the input is a Mach-O file that is the ctf_file(s) are to be inserted
* into and output is the file to be created.
*/
int
main(
int argc,
char **argv,
char **envp)
{
uint32_t i;
char *input, *output, *contents;
struct arch *archs;
uint32_t narchs;
struct stat stat_buf;
int fd;
progname = argv[0];
input = NULL;
output = NULL;
archs = NULL;
narchs = 0;
for(i = 1; i < argc; i++){
if(strcmp(argv[i], "-o") == 0){
if(i + 1 == argc){
error("missing argument to: %s option", argv[i]);
usage();
}
if(output != NULL){
error("more than one: %s option specified", argv[i]);
usage();
}
output = argv[i+1];
i++;
}
else if(strcmp(argv[i], "-arch") == 0){
if(i + 2 == argc){
error("missing argument(s) to: %s option", argv[i]);
usage();
}
else{
arch_ctfs = reallocate(arch_ctfs,
(narch_ctfs + 1) * sizeof(struct arch_ctf));
if(get_arch_from_flag(argv[i+1],
&(arch_ctfs[narch_ctfs].arch_flag)) == 0){
error("unknown architecture specification flag: "
"%s %s %s", argv[i], argv[i+1], argv[i+2]);
arch_usage();
usage();
}
if((fd = open(argv[i+2], O_RDONLY, 0)) == -1)
system_fatal("can't open file: %s", argv[i+2]);
if(fstat(fd, &stat_buf) == -1)
system_fatal("can't stat file: %s", argv[i+2]);
/*
* For some reason mapping files with zero size fails
* so it has to be handled specially.
*/
contents = NULL;
if(stat_buf.st_size != 0){
contents = mmap(0, stat_buf.st_size,
PROT_READ|PROT_WRITE,
MAP_FILE|MAP_PRIVATE, fd, 0);
if((intptr_t)contents == -1)
system_error("can't map file : %s", argv[i+2]);
}
arch_ctfs[narch_ctfs].filename = argv[i+2];
arch_ctfs[narch_ctfs].contents = contents;
arch_ctfs[narch_ctfs].size = stat_buf.st_size;
arch_ctfs[narch_ctfs].arch_found = FALSE;
narch_ctfs++;
i += 2;
}
}
else{
if(input != NULL){
error("more than one input file file: %s specified",
input);
usage();
}
input = argv[i];
}
}
if(input == NULL || output == NULL || narch_ctfs == 0)
usage();
breakout(input, &archs, &narchs, FALSE);
if(errors)
exit(EXIT_FAILURE);
checkout(archs, narchs);
process(archs, narchs);
for(i = 0; i < narch_ctfs; i++){
if(arch_ctfs[i].arch_found == FALSE)
fatal("input file: %s does not contain a matching architecture "
"for specified '-arch %s %s' option", input,
arch_ctfs[i].arch_flag.name, arch_ctfs[i].filename);
}
writeout(archs, narchs, output, 0777, TRUE, FALSE, FALSE, FALSE, NULL);
if(errors)
return(EXIT_FAILURE);
else
return(EXIT_SUCCESS);
}
int
main(
int argc,
char **argv,
char **envp)
{
int i;
enum bool args_left;
struct flags flag;
struct arch_flag *arch_flags;
unsigned long narch_flags;
enum bool all_archs;
progname = argv[0];
arch_flags = NULL;
narch_flags = 0;
all_archs = FALSE;
flag.nfiles = 0;
flag.m = FALSE;
flag.l = FALSE;
flag.x = FALSE;
for(i = 1; i < argc; i++){
if(argv[i][0] == '-'){
if(argv[i][1] == '\0'){
flag.nfiles += argc - i - 1;
break;
}
if(strcmp(argv[i], "-m") == 0){
flag.m = TRUE;
continue;
}
if(strcmp(argv[i], "-l") == 0){
flag.l = TRUE;
flag.m = TRUE;
continue;
}
if(strcmp(argv[i], "-x") == 0){
flag.x = TRUE;
flag.m = TRUE;
continue;
}
if(strcmp(argv[i], "-arch") == 0){
if(i + 1 == argc){
error("missing argument(s) to %s option", argv[i]);
usage();
}
if(strcmp("all", argv[i+1]) == 0){
all_archs = TRUE;
}
else{
arch_flags = reallocate(arch_flags,
(narch_flags + 1) * sizeof(struct arch_flag));
if(get_arch_from_flag(argv[i+1],
arch_flags + narch_flags) == 0){
error("unknown architecture specification flag: "
"%s %s", argv[i], argv[i+1]);
arch_usage();
usage();
}
narch_flags++;
}
i++;
continue;
}
}
flag.nfiles++;
}
if(flag.m == FALSE)
printf("__TEXT\t__DATA\t__OBJC\tothers\tdec\thex\n");
args_left = TRUE;
for (i = 1; i < argc; i++) {
if(args_left == TRUE && argv[i][0] == '-'){
if(argv[i][1] == '\0'){
args_left = FALSE;
continue;
}
if(strcmp(argv[i], "-m") == 0)
continue;
if(strcmp(argv[i], "-l") == 0)
continue;
if(strcmp(argv[i], "-x") == 0)
continue;
if(strcmp(argv[i], "-arch") == 0){
i++;
continue;
}
}
ofile_process(argv[i], arch_flags, narch_flags, all_archs, FALSE,
TRUE, TRUE, size, &flag);
}
if(flag.nfiles == 0)
ofile_process("a.out", arch_flags, narch_flags, all_archs, FALSE,
TRUE, TRUE, size, &flag);
if(errors == 0)
return(EXIT_SUCCESS);
else
return(EXIT_FAILURE);
}
int
main(
int argc,
char **argv,
char **envp)
{
struct flags flags;
int i;
uint32_t j, nfiles;
char *endp;
struct arch_flag *arch_flags;
uint32_t narch_flags;
enum bool all_archs, rest_args_files, use_member_syntax;
struct stat stat_buf;
progname = argv[0];
nfiles = 0;
arch_flags = NULL;
narch_flags = 0;
all_archs = FALSE;
flags.treat_as_data = FALSE;
flags.print_offsets = FALSE;
flags.offset_format = NULL;
flags.all_sections = FALSE;
flags.minimum_length = 4;
rest_args_files = FALSE;
for(i = 1; i < argc; i++){
if(rest_args_files == FALSE && argv[i][0] == '-'){
if(argv[i][1] == '\0')
flags.treat_as_data = TRUE;
else if(strcmp(argv[i], "--") == 0)
rest_args_files = TRUE;
else if(strcmp(argv[i], "-arch") == 0){
if(i + 1 == argc){
error("missing argument(s) to %s option", argv[i]);
usage();
}
if(strcmp("all", argv[i+1]) == 0){
all_archs = TRUE;
}
else{
arch_flags = reallocate(arch_flags,
(narch_flags + 1) * sizeof(struct arch_flag));
if(get_arch_from_flag(argv[i+1],
arch_flags + narch_flags) == 0){
error("unknown architecture specification flag: "
"%s %s", argv[i], argv[i+1]);
arch_usage();
usage();
}
narch_flags++;
}
i++;
}
else if(strcmp(argv[i], "-n") == 0){
if(i + 1 == argc){
error("missing argument to %s option", argv[i]);
usage();
}
flags.minimum_length = strtoul(argv[i+1], &endp, 10);
if(*endp != '\0'){
error("invalid decimal number in option: %s %s",
argv[i], argv[i+1]);
usage();
}
i++;
}
else if(strcmp(argv[i], "-t") == 0){
if(i + 1 == argc){
error("missing argument to %s option", argv[i]);
usage();
}
if(argv[i+1][1] != '\0'){
error("invalid argument to option: %s %s",
argv[i], argv[i+1]);
usage();
}
switch(argv[i+1][0]){
case 'd':
flags.print_offsets = TRUE;
flags.offset_format = "%d";
break;
case 'o':
flags.print_offsets = TRUE;
flags.offset_format = "%o";
break;
case 'x':
flags.print_offsets = TRUE;
flags.offset_format = "%x";
break;
default:
error("invalid argument to option: %s %s",
argv[i], argv[i+1]);
usage();
}
i++;
}
else{
endp = NULL;
for(j = 1; argv[i][j] != '\0' && endp == NULL; j++){
switch(argv[i][j]){
case 'o':
flags.print_offsets = TRUE;
flags.offset_format = "%7lu";
break;
case 'a':
flags.all_sections = TRUE;
break;
default:
if(!isdigit(argv[i][j])){
error("unknown flag: %s", argv[i]);
usage();
}
flags.minimum_length = strtoul(argv[i]+j,&endp,10);
if(*endp != '\0'){
error("invalid decimal number in flag: %s",
argv[i]);
usage();
}
}
}
}
}
else{
nfiles++;
}
}
/*
* Process the file or stdin if there are no files.
*/
rest_args_files = FALSE;
if(nfiles != 0){
for(i = 1; i < argc; i++){
if(argv[i][0] != '-' || rest_args_files == TRUE){
if(flags.treat_as_data == TRUE){
if(freopen(argv[i], "r", stdin) == NULL)
system_error("can't open: %s", argv[i]);
rewind(stdin);
find(UINT_MAX, &flags);
}
else{
/*
* If there's a filename that's an exact match then use
* that, else fall back to the member syntax.
*/
if(stat(argv[i], &stat_buf) == 0)
use_member_syntax = FALSE;
else
use_member_syntax = TRUE;
ofile_process(argv[i], arch_flags, narch_flags,
all_archs, TRUE, TRUE, use_member_syntax,
ofile_processor,&flags);
}
}
else if(strcmp(argv[i], "-arch") == 0 ||
strcmp(argv[i], "-n") == 0 ||
strcmp(argv[i], "-t") == 0)
i++;
else if(strcmp(argv[i], "--") == 0)
rest_args_files = TRUE;
}
}
else{
find(UINT_MAX, &flags);
}
if(errors == 0)
return(EXIT_SUCCESS);
else
return(EXIT_FAILURE);
}
int
main(
int argc,
char **argv,
char **envp)
{
int i;
struct cmd_flags cmd_flags;
unsigned long j, table_size;
struct arch_flag *arch_flags;
unsigned long narch_flags;
enum bool all_archs;
char **files;
progname = argv[0];
arch_flags = NULL;
narch_flags = 0;
all_archs = FALSE;
cmd_flags.nfiles = 0;
cmd_flags.rldtype = FALSE;
cmd_flags.detail = FALSE;
cmd_flags.verification = FALSE;
cmd_flags.trey = FALSE;
cmd_flags.check_dynamic_binary = TRUE;
files = allocate(sizeof(char *) * argc);
for(i = 1; i < argc; i++){
if(argv[i][0] == '-'){
if(argv[i][1] == '\0'){
for( ; i < argc; i++)
files[cmd_flags.nfiles++] = argv[i];
break;
}
else if(strcmp(argv[i], "-arch") == 0){
if(i + 1 == argc){
error("missing argument(s) to %s option", argv[i]);
usage();
}
if(strcmp("all", argv[i+1]) == 0){
all_archs = TRUE;
}
else{
arch_flags = reallocate(arch_flags,
(narch_flags + 1) * sizeof(struct arch_flag));
if(get_arch_from_flag(argv[i+1],
arch_flags + narch_flags) == 0){
error("unknown architecture specification flag: "
"%s %s", argv[i], argv[i+1]);
arch_usage();
usage();
}
narch_flags++;
}
i++;
}
else if(strcmp(argv[i], "-dylib_table") == 0){
if(i + 1 == argc){
error("missing argument(s) to %s option", argv[i]);
usage();
}
if(dylib_table_name != NULL){
error("more than one: %s option", argv[i]);
usage();
}
dylib_table_name = argv[i+1];
dylib_table = parse_dylib_table(argv[i+1], argv[i],
argv[i+1]);
i++;
}
else if(strcmp(argv[i], "-seg_addr_table") == 0){
if(i + 1 == argc){
error("missing argument(s) to %s option", argv[i]);
usage();
}
if(seg_addr_table_specified == TRUE){
error("more than one: %s option", argv[i]);
usage();
}
seg_addr_table_specified = TRUE;
seg_addr_table_name = argv[i+1];
seg_addr_table = parse_seg_addr_table(argv[i+1],
argv[i], argv[i+1], &table_size);
i++;
}
else if(strcmp(argv[i], "-seg_addr_table_filename") == 0){
if(i + 1 == argc){
error("missing argument(s) to %s option", argv[i]);
usage();
}
if(seg_addr_table_filename != NULL){
error("more than one: %s option", argv[i]);
usage();
}
seg_addr_table_filename = argv[i+1];
i++;
}
else{
for(j = 1; argv[i][j] != '\0'; j++){
switch(argv[i][j]){
case 'r':
cmd_flags.rldtype = TRUE;
break;
case 'd':
cmd_flags.detail = TRUE;
break;
case 'v':
cmd_flags.verification = TRUE;
break;
case 't':
cmd_flags.trey = TRUE;
break;
case 'b':
cmd_flags.check_dynamic_binary = TRUE;
break;
default:
error("invalid argument -%c", argv[i][j]);
usage();
}
}
}
continue;
}
files[cmd_flags.nfiles++] = argv[i];
}
if(arch_flags == NULL)
all_archs = TRUE;
if(cmd_flags.nfiles != 1)
usage();
for(j = 0; j < cmd_flags.nfiles; j++)
ofile_process(files[j], arch_flags, narch_flags, all_archs, TRUE,
TRUE, FALSE, checksyms, &cmd_flags);
if(errors == 0)
return(exit_status);
else
return(EXIT_FAILURE);
}