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|
/*
* Copyright 2008-2021 Gentoo Foundation
* Distributed under the terms of the GNU General Public License v2
*
* based on scanelf by:
* Copyright 2003-2012 Ned Ludd - <solar@gentoo.org>
* Copyright 2004-2012 Mike Frysinger - <vapier@gentoo.org>
* for Darwin specific fun:
* 2008-2021 Fabian Groffen - <grobian@gentoo.org>
*/
const char argv0[] = "scanmacho";
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>
#include "paxinc.h"
#include "macho.h"
#include "pax_utils_version.h"
#include "paxmacho.h"
#include "porting.h"
#include "security.h"
#include "xfuncs.h"
#define IS_MODIFIER(c) (c == '%' || c == '#' || c == '+')
/* prototypes */
static int scanmacho_fatobj(fatobj *fobj);
static int scanmacho_file(const char *filename, const struct stat *st_cache);
static int scanmacho_from_file(const char *filename);
static int scanmacho_dir(const char *path);
static void scanmacho_envpath(void);
static void usage(int status);
static int parseargs(int argc, char *argv[]);
/* variables to control behavior */
static const char *match_etypes = NULL;
static char scan_envpath = 0;
static char scan_symlink = 1;
static char scan_archives = 0;
static char dir_recurse = 0;
static char dir_crossmount = 1;
static char show_perms = 0;
static char show_size = 0;
static char show_rpath = 0;
static char show_needed = 0;
static char show_interp = 0;
static char show_bind = 0;
static char show_uuid = 0;
static char show_soname = 0;
static char show_banner = 1;
static char show_endian = 0;
static char be_quiet = 0;
static char be_verbose = 0;
static char be_wewy_wewy_quiet = 0;
static char be_semi_verbose = 0;
static char *find_lib = NULL;
static char *out_format = NULL;
static char *search_path = NULL;
static char g_match = 0;
static int match_bits = 0;
static unsigned int match_perms = 0;
static void scanmacho_file_rpath(
fatobj *fobj,
char *found_rpath,
char **ret,
size_t *ret_len)
{
loadcmd *lcmd;
uint32_t lc_rpath;
if (!show_rpath) return;
lcmd = firstloadcmd(fobj);
lc_rpath = MGET(fobj->swapped, LC_RPATH);
do {
if (lcmd->lcmd->cmd == lc_rpath) {
struct rpath_command *dlcmd = lcmd->data;
char *rpath;
rpath = lcmd->data + MGET(fobj->swapped, dlcmd->path.offset);
if (*found_rpath)
xchrcat(ret, ':', ret_len);
xstrcat(ret, rpath, ret_len);
*found_rpath = 1;
}
} while (nextloadcmd(lcmd));
if (be_wewy_wewy_quiet) return;
if (!*found_rpath && !be_quiet)
xstrcat(ret, " - ", ret_len);
}
static const char *macho_file_needed_lib(
fatobj *fobj,
char *found_needed,
char *found_lib,
int op,
char **ret,
size_t *ret_len
) {
loadcmd *lcmd;
uint32_t lc_load_dylib;
if ((op == 0 && !show_needed) || (op == 1 && !find_lib))
return NULL;
lcmd = firstloadcmd(fobj);
lc_load_dylib = MGET(fobj->swapped, LC_LOAD_DYLIB);
do {
if (lcmd->lcmd->cmd == lc_load_dylib) {
struct dylib_command *dlcmd = lcmd->data;
char *needed;
needed = lcmd->data + MGET(fobj->swapped, dlcmd->dylib.name.offset);
if (op == 0) {
if (!be_wewy_wewy_quiet) {
if (*found_needed)
xchrcat(ret, ',', ret_len);
xstrcat(ret, needed, ret_len);
}
*found_needed = 1;
} else {
if (!strncmp(find_lib, needed,
strlen(!g_match ? needed : find_lib)))
{
*found_lib = 1;
free(lcmd);
return (be_wewy_wewy_quiet ? NULL : needed);
}
}
}
} while (nextloadcmd(lcmd));
if (op == 0 && !*found_needed && be_verbose)
warn("Mach-O lacks LC_LOAD_DYLIB commands: %s", fobj->filename);
return NULL;
}
static char *macho_file_interp(fatobj *fobj, char *found_interp)
{
loadcmd *lcmd;
uint32_t lc_load_dylinker;
if (!show_interp)
return NULL;
lcmd = firstloadcmd(fobj);
lc_load_dylinker = MGET(fobj->swapped, LC_LOAD_DYLINKER);
do {
if (lcmd->lcmd->cmd == lc_load_dylinker) {
struct dylinker_command *dlcmd = lcmd->data;
char *dylinker;
dylinker = lcmd->data + MGET(fobj->swapped, dlcmd->name.offset);
*found_interp = 1;
free(lcmd);
return (be_wewy_wewy_quiet ? NULL : dylinker);
}
} while (nextloadcmd(lcmd));
return NULL;
}
static char *macho_file_soname(fatobj *fobj, char *found_soname)
{
loadcmd *lcmd;
uint32_t lc_id_dylib;
if (!show_soname)
return NULL;
lcmd = firstloadcmd(fobj);
lc_id_dylib = MGET(fobj->swapped, LC_ID_DYLIB);
do {
if (lcmd->lcmd->cmd == lc_id_dylib) {
struct dylib_command *dlcmd = lcmd->data;
char *soname;
soname = lcmd->data + MGET(fobj->swapped, dlcmd->dylib.name.offset);
*found_soname = 1;
free(lcmd);
return (be_wewy_wewy_quiet ? NULL : soname);
}
} while (nextloadcmd(lcmd));
return NULL;
}
static char *macho_file_uuid(fatobj *fobj, char *found_uuid)
{
loadcmd *lcmd;
uint32_t lc_uuid;
static char uuid_buf[32 + 4 + 1];
if (!show_uuid)
return NULL;
lcmd = firstloadcmd(fobj);
lc_uuid = MGET(fobj->swapped, LC_UUID);
do {
if (lcmd->lcmd->cmd == lc_uuid) {
struct uuid_command *ucmd = lcmd->data;
unsigned char *uuid;
uuid = (unsigned char *)(ucmd->uuid);
*found_uuid = 1;
free(lcmd);
if (be_wewy_wewy_quiet)
return NULL;
snprintf(uuid_buf, sizeof(uuid_buf),
"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
"%02x%02x%02x%02x%02x%02x",
uuid[0], uuid[1], uuid[2], uuid[3],
uuid[4], uuid[5],
uuid[6], uuid[7],
uuid[8], uuid[9],
uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15]);
return uuid_buf;
}
} while (nextloadcmd(lcmd));
return NULL;
}
/* scan a macho file and show all the fun stuff */
#define prints(str) ({ ssize_t ret = write(fileno(stdout), str, strlen(str)); ret; })
static int scanmacho_fatobj(fatobj *fobj)
{
unsigned long i;
char found_rpath, found_needed, found_interp, found_soname,
found_lib, found_file, found_uuid;
static char *out_buffer = NULL;
static size_t out_len;
found_rpath = found_needed = found_interp = found_soname = \
found_lib = found_file = found_uuid = 0;
if (be_verbose > 2)
printf("%s: scanning file {%s,%s}\n", fobj->filename,
get_machocputype(fobj),
get_machosubcputype(fobj));
else if (be_verbose > 1)
printf("%s: scanning file\n", fobj->filename);
/* init output buffer */
if (!out_buffer) {
out_len = sizeof(char) * 80;
out_buffer = xmalloc(out_len);
}
*out_buffer = '\0';
/* show the header */
if (!be_quiet && show_banner) {
for (i = 0; out_format[i]; ++i) {
if (!IS_MODIFIER(out_format[i])) continue;
switch (out_format[++i]) {
case '+': break;
case '%': break;
case '#': break;
case 'F':
case 'p':
case 'f': prints("FILE "); found_file = 1; break;
case 'o': prints(" TYPE "); break;
case 'M': prints("CPU "); break;
case 'r': prints("RPATH "); break;
case 'n': prints("NEEDED "); break;
case 'i': prints("DYLINKER "); break;
case 'b': prints("FLAGS "); break;
case 'Z': prints("SIZE "); break;
case 'S': prints("INSTALLNAME "); break;
case 'U': prints("UUID "); break;
case 'N': prints("LIB "); break;
case 'a': prints("ARCH "); break;
case 'O': prints("PERM "); break;
case 'D': prints("ENDIAN "); break;
default: warnf("'%c' has no title ?", out_format[i]);
}
}
if (!found_file) prints("FILE ");
prints("\n");
found_file = 0;
show_banner = 0;
}
/* dump all the good stuff */
for (i = 0; out_format[i]; ++i) {
const char *out;
const char *tmp;
static char ubuf[sizeof(unsigned long)*2];
if (!IS_MODIFIER(out_format[i])) {
xchrcat(&out_buffer, out_format[i], &out_len);
continue;
}
out = NULL;
be_wewy_wewy_quiet = (out_format[i] == '#');
be_semi_verbose = (out_format[i] == '+');
switch (out_format[++i]) {
case '+':
case '%':
case '#':
xchrcat(&out_buffer, out_format[i], &out_len); break;
case 'F':
found_file = 1;
if (be_wewy_wewy_quiet) break;
xstrcat(&out_buffer, fobj->filename, &out_len);
break;
case 'p':
found_file = 1;
if (be_wewy_wewy_quiet) break;
tmp = fobj->filename;
if (search_path) {
ssize_t len_search = strlen(search_path);
ssize_t len_file = strlen(fobj->filename);
if (!strncmp(fobj->filename, search_path, len_search) && \
len_file > len_search)
tmp += len_search;
if (*tmp == '/' && search_path[len_search-1] == '/') tmp++;
}
xstrcat(&out_buffer, tmp, &out_len);
break;
case 'f':
found_file = 1;
if (be_wewy_wewy_quiet) break;
xstrcat(&out_buffer, fobj->base_filename, &out_len);
break;
case 'r': scanmacho_file_rpath(fobj, &found_rpath, &out_buffer, &out_len); break;
case 'o': out = get_machomhtype(fobj); break;
case 'M': out = get_machocputype(fobj); break;
case 'D': out = get_machoendian(fobj); break;
case 'O': out = strfileperms(fobj->filename); break;
case 'n':
case 'N': out = macho_file_needed_lib(fobj, &found_needed, &found_lib, (out_format[i]=='N'), &out_buffer, &out_len); break;
case 'i': out = macho_file_interp(fobj, &found_interp); break;
case 'b': get_machomhflags(fobj, &out_buffer, &out_len); break;
case 'S': out = macho_file_soname(fobj, &found_soname); break;
case 'U': out = macho_file_uuid(fobj, &found_uuid); break;
case 'a': out = get_machomtype(fobj); break;
case 'Z': snprintf(ubuf, sizeof(ubuf), "%llu", (unsigned long long int)fobj->len); out = ubuf; break;;
default: warnf("'%c' has no scan code?", out_format[i]);
}
if (out) {
/* hack for comma delimited output like `scanelf -s sym1,sym2,sym3` */
if (out_format[i] == 's' && (tmp=strchr(out,',')) != NULL)
xstrncat(&out_buffer, out, &out_len, (tmp-out));
else
xstrcat(&out_buffer, out, &out_len);
}
}
#define FOUND_SOMETHING() \
(found_rpath || found_needed || found_interp || found_soname || found_lib)
if (!found_file && (!be_quiet || (be_quiet && FOUND_SOMETHING()))) {
xchrcat(&out_buffer, ' ', &out_len);
xstrcat(&out_buffer, fobj->filename, &out_len);
}
if (!be_quiet || (be_quiet && FOUND_SOMETHING())) {
puts(out_buffer);
fflush(stdout);
}
return 0;
}
/* scan a single Mach-O */
static int scanmacho_fat(const char *filename, int fd, size_t len)
{
int ret = 1;
fatobj *fobj;
fatobj *walk;
/* verify this is real Mach-O */
if ((fobj = readmacho_fd(filename, fd, len)) == NULL) {
if (be_verbose > 2) printf("%s: not a Mach-O object\n", filename);
return ret;
}
switch (match_bits) {
case 32:
case 64:
walk = fobj;
do {
if ((walk->ismach64 && match_bits == 64) ||
(!walk->ismach64 && match_bits == 32))
{
ret = scanmacho_fatobj(walk);
}
} while (walk->next != NULL && (walk = walk->next));
goto label_done;
default:
break;
}
if (match_etypes) {
char sbuf[128];
char ftype[32];
snprintf(sbuf, 128, ",%s,", match_etypes);
walk = fobj;
do {
snprintf(ftype, 32, ",%s,", get_machomhtype(walk));
if (strstr(sbuf, ftype) != NULL) {
ret = scanmacho_fatobj(walk);
}
} while (walk->next != NULL && (walk = walk->next));
goto label_done;
}
walk = fobj;
do {
ret = scanmacho_fatobj(walk);
} while (walk->next != NULL && (walk = walk->next));
label_done:
unreadmacho(fobj);
return ret;
}
/* scan an archive of Mach-Os */
static int scanmacho_archive(const char *filename, int fd, size_t len)
{
archive_handle *ar;
archive_member *m;
char *ar_buffer;
fatobj *fobj;
fatobj *walk;
ar = ar_open_fd(filename, fd, be_verbose);
if (ar == NULL)
return 1;
ar_buffer = mmap(0, len, PROT_READ, MAP_PRIVATE, fd, 0);
while ((m = ar_next(ar)) != NULL) {
fobj = readmacho_buffer(m->name, ar_buffer + lseek(fd, 0, SEEK_CUR), m->size);
if (fobj) {
walk = fobj;
do {
scanmacho_fatobj(walk);
} while (walk->next != NULL && (walk = walk->next));
fobj->data = NULL;
unreadmacho(fobj);
}
}
munmap(ar_buffer, len);
return 0;
}
/* scan a file which may be an Mach-O or an archive or some other
* magical beast */
static int scanmacho_file(const char *filename, const struct stat *st_cache)
{
const struct stat *st = st_cache;
struct stat symlink_st;
int fd;
/* always handle regular files and handle symlinked files if no -y */
if (S_ISLNK(st->st_mode)) {
if (!scan_symlink)
return 1;
if (stat(filename, &symlink_st))
return 1;
st = &symlink_st;
}
if (!S_ISREG(st->st_mode)) {
if (be_verbose > 2) printf("%s: skipping non-file\n", filename);
return 1;
}
if (match_perms) {
if ((st->st_mode | match_perms) != st->st_mode)
return 1;
}
if ((fd = open(filename, O_RDONLY)) == -1)
return 1;
if (scanmacho_fat(filename, fd, st->st_size) == 1 && scan_archives)
/* if it isn't an Mach-O, maybe it's an .a archive */
scanmacho_archive(filename, fd, st->st_size);
close(fd);
return 0;
}
/* scan a directory for Mach-O files and print when we find one */
static int scanmacho_dir(const char *path)
{
register DIR *dir;
register struct dirent *dentry;
struct stat st_top, st;
char buf[__PAX_UTILS_PATH_MAX];
size_t pathlen = 0, len = 0;
int ret = 0;
/* make sure path exists */
if (lstat(path, &st_top) == -1) {
if (be_verbose > 2) printf("%s: does not exist\n", path);
return 1;
}
/* ok, if it isn't a directory, assume we can open it */
if (!S_ISDIR(st_top.st_mode))
return scanmacho_file(path, &st_top);
/* now scan the dir looking for fun stuff */
if ((dir = opendir(path)) == NULL) {
warnf("could not opendir %s: %s", path, strerror(errno));
return 1;
}
if (be_verbose > 1) printf("%s: scanning dir\n", path);
pathlen = strlen(path);
while ((dentry = readdir(dir))) {
if (!strcmp(dentry->d_name, ".") || !strcmp(dentry->d_name, ".."))
continue;
len = (pathlen + 1 + strlen(dentry->d_name) + 1);
if (len >= sizeof(buf)) {
warnf("Skipping '%s': len > sizeof(buf); %zu > %zu",
path, len, sizeof(buf));
continue;
}
snprintf(buf, sizeof(buf), "%s%s%s", path, (path[pathlen-1] == '/') ? "" : "/", dentry->d_name);
if (lstat(buf, &st) != -1) {
if (S_ISREG(st.st_mode))
ret = scanmacho_file(buf, &st);
else if (dir_recurse && S_ISDIR(st.st_mode)) {
if (dir_crossmount || (st_top.st_dev == st.st_dev))
ret = scanmacho_dir(buf);
}
}
}
closedir(dir);
return ret;
}
static int scanmacho_from_file(const char *filename)
{
FILE *fp = NULL;
char *p;
char path[__PAX_UTILS_PATH_MAX];
int ret = 0;
if (strcmp(filename, "-") == 0)
fp = stdin;
else if ((fp = fopen(filename, "r")) == NULL)
return 1;
while ((fgets(path, __PAX_UTILS_PATH_MAX, fp)) != NULL) {
if ((p = strchr(path, '\n')) != NULL)
*p = 0;
search_path = path;
ret = scanmacho_dir(path);
}
if (fp != stdin)
fclose(fp);
return ret;
}
/* scan env PATH for paths */
static void scanmacho_envpath(void)
{
char *path, *p;
path = getenv("PATH");
if (!path)
err("PATH is not set in your env !");
path = xstrdup(path);
while ((p = strrchr(path, ':')) != NULL) {
scanmacho_dir(p + 1);
*p = 0;
}
free(path);
}
/* usage / invocation handling functions */ /* Free Flags: c d e j k l s t u w x z G H I J K L P Q T W X Y */
#define PARSE_FLAGS "pRmyArnibSUN:gE:M:DO:ZaqvF:f:o:CBhV"
#define a_argument required_argument
static struct option const long_opts[] = {
{"path", no_argument, NULL, 'p'},
{"recursive", no_argument, NULL, 'R'},
{"mount", no_argument, NULL, 'm'},
{"symlink", no_argument, NULL, 'y'},
{"archives", no_argument, NULL, 'A'},
{"rpath", no_argument, NULL, 'r'},
{"needed", no_argument, NULL, 'n'},
{"interp", no_argument, NULL, 'i'},
{"bind", no_argument, NULL, 'b'},
{"soname", no_argument, NULL, 'S'},
{"uuid", no_argument, NULL, 'U'},
{"lib", a_argument, NULL, 'N'},
{"gmatch", no_argument, NULL, 'g'},
{"etype", a_argument, NULL, 'E'},
{"bits", a_argument, NULL, 'M'},
{"endian", no_argument, NULL, 'D'},
{"perms", a_argument, NULL, 'O'},
{"size", no_argument, NULL, 'Z'},
{"all", no_argument, NULL, 'a'},
{"quiet", no_argument, NULL, 'q'},
{"verbose", no_argument, NULL, 'v'},
{"format", a_argument, NULL, 'F'},
{"from", a_argument, NULL, 'f'},
{"file", a_argument, NULL, 'o'},
{"nocolor", no_argument, NULL, 'C'},
{"nobanner", no_argument, NULL, 'B'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'V'},
{NULL, no_argument, NULL, 0x0}
};
static const char * const opts_help[] = {
"Scan all directories in PATH environment",
"Scan directories recursively",
"Don't recursively cross mount points",
"Don't scan symlinks",
"Scan archives (.a files)\n",
"Print LC_RPATH information (ELF: RPATH/RUNPATH)",
"Print LC_LOAD_DYLIB information (ELF: NEEDED)",
"Print LC_LOAD_DYLINKER information (ELF: INTERP)",
"Print flags from mach_header (ELF: BIND)",
"Print LC_ID_DYLIB information (ELF: SONAME)",
"Print LC_UUID information",
"Find a specified library",
"Use strncmp to match libraries. (use with -N)",
"Print only Mach-O files matching mach_header\n"
" MH_OBJECT,MH_EXECUTE ... (ELF: etype)",
"Print only Mach-O files matching numeric bits",
"Print Endianness",
"Print only Mach-O files matching octal permissions",
"Print Mach-O file size",
"Print all useful/simple info\n",
"Only output 'bad' things",
"Be verbose (can be specified more than once)",
"Use specified format for output",
"Read input stream from a filename",
"Write output stream to a filename",
"Don't emit color in output",
"Don't display the header",
"Print this help and exit",
"Print version and exit",
NULL
};
/* display usage and exit */
static void usage(int status)
{
unsigned long i;
printf("* Scan Mach-O binaries for stuff\n\n"
"Usage: %s [options] <dir1/file1> [dir2 dirN file2 fileN ...]\n\n", argv0);
printf("Options: -[%s]\n", PARSE_FLAGS);
for (i = 0; long_opts[i].name; ++i)
if (long_opts[i].has_arg == no_argument)
printf(" -%c, --%-14s* %s\n", long_opts[i].val,
long_opts[i].name, opts_help[i]);
else
printf(" -%c, --%-7s <arg> * %s\n", long_opts[i].val,
long_opts[i].name, opts_help[i]);
puts("\nFor more information, see the scanmacho(1) manpage");
exit(status);
}
/* parse command line arguments and preform needed actions */
static int parseargs(int argc, char *argv[])
{
int i;
const char *from_file = NULL;
int ret = 0;
opterr = 0;
while ((i = getopt_long(argc, argv, PARSE_FLAGS, long_opts, NULL)) != -1) {
switch (i) {
case 'V':
printf("pax-utils-%s: %s\n"
"%s written for Gentoo by <solar, vapier and grobian @ gentoo.org>\n",
VERSION, VCSID, argv0);
exit(EXIT_SUCCESS);
break;
case 'h': usage(EXIT_SUCCESS); break;
case 'f':
if (from_file) warn("You prob don't want to specify -f twice");
from_file = optarg;
break;
case 'E':
match_etypes = optarg;
break;
case 'M':
match_bits = atoi(optarg);
break;
case 'O':
if (sscanf(optarg, "%o", &match_perms) == -1)
match_bits = 0;
break;
case 'o': {
if (freopen(optarg, "w", stdout) == NULL)
err("Could not open output stream '%s': %s", optarg, strerror(errno));
break;
}
case 'N': {
if (find_lib) warn("You prob don't want to specify -N twice");
find_lib = optarg;
break;
}
case 'F': {
if (out_format) warn("You prob don't want to specify -F twice");
out_format = optarg;
break;
}
case 'Z': show_size = 1; break;
case 'g': g_match = 1; break;
case 'y': scan_symlink = 0; break;
case 'A': scan_archives = 1; break;
case 'C': color_init(true); break;
case 'B': show_banner = 0; break;
case 'p': scan_envpath = 1; break;
case 'R': dir_recurse = 1; break;
case 'm': dir_crossmount = 0; break;
case 'r': show_rpath = 1; break;
case 'n': show_needed = 1; break;
case 'i': show_interp = 1; break;
case 'b': show_bind = 1; break;
case 'S': show_soname = 1; break;
case 'U': show_uuid = 1; break;
case 'q': be_quiet = 1; break;
case 'v': be_verbose = (be_verbose % 20) + 1; break;
case 'a': show_perms = show_endian = show_bind = 1; break;
case 'D': show_endian = 1; break;
case ':':
err("Option '%c' is missing parameter", optopt);
case '?':
err("Unknown option '%c' or argument missing", optopt);
default:
err("Unhandled option '%c'; please report this", i);
}
}
/* let the format option override all other options */
if (out_format) {
show_rpath = show_needed = show_interp = show_bind = show_soname = \
show_perms = show_endian = show_size = 0;
for (i = 0; out_format[i]; ++i) {
if (!IS_MODIFIER(out_format[i])) continue;
switch (out_format[++i]) {
case '+': break;
case '%': break;
case '#': break;
case 'F': break;
case 'p': break;
case 'f': break;
case 'k': break;
case 'N': break;
case 'o': break;
case 'a': break;
case 'M': break;
case 'Z': show_size = 1; break;
case 'D': show_endian = 1; break;
case 'O': show_perms = 1; break;
case 'r': show_rpath = 1; break;
case 'n': show_needed = 1; break;
case 'i': show_interp = 1; break;
case 'b': show_bind = 1; break;
case 'S': show_soname = 1; break;
case 'U': show_uuid = 1; break;
default:
err("Invalid format specifier '%c' (byte %i)",
out_format[i], i+1);
}
}
/* construct our default format */
} else {
size_t fmt_len = 30;
out_format = xmalloc(sizeof(char) * fmt_len);
*out_format = '\0';
if (!be_quiet) xstrcat(&out_format, "%a ", &fmt_len);
if (!be_quiet) xstrcat(&out_format, "%o ", &fmt_len);
if (show_perms) xstrcat(&out_format, "%O ", &fmt_len);
if (show_size) xstrcat(&out_format, "%Z ", &fmt_len);
if (show_endian) xstrcat(&out_format, "%D ", &fmt_len);
if (show_rpath) xstrcat(&out_format, "%r ", &fmt_len);
if (show_needed) xstrcat(&out_format, "%n ", &fmt_len);
if (show_interp) xstrcat(&out_format, "%i ", &fmt_len);
if (show_bind) xstrcat(&out_format, "%b ", &fmt_len);
if (show_soname) xstrcat(&out_format, "%S ", &fmt_len);
if (show_uuid) xstrcat(&out_format, "%U ", &fmt_len);
if (find_lib) xstrcat(&out_format, "%N ", &fmt_len);
if (!be_quiet) xstrcat(&out_format, "%F ", &fmt_len);
}
if (be_verbose > 2) printf("Format: %s\n", out_format);
/* now lets actually do the scanning */
if (scan_envpath)
scanmacho_envpath();
if (!from_file && optind == argc && ttyname(0) == NULL && !scan_envpath)
from_file = "-";
if (from_file) {
scanmacho_from_file(from_file);
from_file = *argv;
}
if (optind == argc && !scan_envpath && !from_file)
err("Nothing to scan !?");
while (optind < argc) {
search_path = argv[optind++];
ret = scanmacho_dir(search_path);
}
return ret;
}
int main(int argc, char *argv[])
{
int ret;
security_init(false);
if (argc < 2)
usage(EXIT_FAILURE);
color_init(false);
ret = parseargs(argc, argv);
fclose(stdout);
return ret;
}
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