USE_CHGRP(APPLET_NOEXEC(chgrp, chgrp, _BB_DIR_BIN, _BB_SUID_NEVER, chgrp))
USE_CHMOD(APPLET_NOEXEC(chmod, chmod, _BB_DIR_BIN, _BB_SUID_NEVER, chmod))
USE_CHOWN(APPLET_NOEXEC(chown, chown, _BB_DIR_BIN, _BB_SUID_NEVER, chown))
+USE_CHPASSWD(APPLET(chpasswd, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_CHPST(APPLET(chpst, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_CHROOT(APPLET(chroot, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_CHRT(APPLET(chrt, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
extern int restricted_shell(const char *shell);
extern void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw);
extern int correct_password(const struct passwd *pw);
+/* Returns a ptr to static storage */
extern char *pw_encrypt(const char *clear, const char *salt);
extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
extern int index_in_str_array(const char * const string_array[], const char *key);
extern void print_login_issue(const char *issue_file, const char *tty);
extern void print_login_prompt(void);
-extern void crypt_make_salt(char *p, int cnt);
+/* rnd is additional random input. New one is returned.
+ * Useful if you call crypt_make_salt many times in a row:
+ * rnd = crypt_make_salt(buf1, 4, 0);
+ * rnd = crypt_make_salt(buf2, 4, rnd);
+ * rnd = crypt_make_salt(buf3, 4, rnd);
+ * (otherwise we risk having same salt generated)
+ */
+extern int crypt_make_salt(char *p, int cnt, int rnd);
+
+/* Returns number of lines changed, or -1 on error */
+extern int update_passwd(const char *filename, const char *username,
+ const char *new_pw);
int get_terminal_width_height(const int fd, int *width, int *height);
" F Input from file"
#define crond_trivial_usage \
- "-d[#] -c <crondir> -f -b"
+ "-d[#] -c crondir -f -b"
#define crond_full_usage \
" -d [#] -l [#] -S -L logfile -f -b -c dir\n" \
" -d num Debug level\n" \
#define crontab_trivial_usage \
"[-c dir] {file|-}|[-u|-l|-e|-d user]"
#define crontab_full_usage \
- " file <opts> Replace crontab from file\n" \
- " - <opts> Replace crontab from stdin\n" \
+ " file [opts] Replace crontab from file\n" \
+ " - [opts] Replace crontab from stdin\n" \
" -u user Specify user\n" \
" -l [user] List crontab for user\n" \
" -e [user] Edit crontab for user\n" \
"-rw-rw-r-- 1 andersen andersen 554058 Apr 14 17:49 /tmp/busybox.tar.gz\n"
#define halt_trivial_usage \
- "[-d<delay>] [-n<nosync>] [-f<force>]"
+ "[-d delay] [-n] [-f]"
#define halt_full_usage \
"Halt the system" \
"\n\nOptions:\n" \
"sage\n"
#define httpd_trivial_usage \
- "[-c <conf file>]" \
- " [-p <port>]" \
+ "[-c conffile]" \
+ " [-p port]" \
" [-i] [-f]" \
USE_FEATURE_HTTPD_SETUID(" [-u user[:grp]]") \
- USE_FEATURE_HTTPD_BASIC_AUTH(" [-r <realm>]") \
+ USE_FEATURE_HTTPD_BASIC_AUTH(" [-r realm]") \
USE_FEATURE_HTTPD_AUTH_MD5(" [-m pass]") \
" [-h home]" \
- " [-d/-e <string>]"
+ " [-d/-e string]"
#define httpd_full_usage \
"Listen for incoming http server requests" \
"\n\nOptions:\n" \
"uid=1000(andersen) gid=1000(andersen)\n"
#define ifconfig_trivial_usage \
- USE_FEATURE_IFCONFIG_STATUS("[-a]") " <interface> [<address>]"
+ USE_FEATURE_IFCONFIG_STATUS("[-a]") " interface [address]"
#define ifconfig_full_usage \
"Configure a network interface" \
"\n\nOptions:\n" \
USE_FEATURE_IPV6( \
- " [add <address>[/<prefixlen>]]\n") \
+ " [add ADDRESS[/PREFIXLEN]]\n") \
USE_FEATURE_IPV6( \
- " [del <address>[/<prefixlen>]]\n") \
- " [[-]broadcast [<address>]] [[-]pointopoint [<address>]]\n" \
- " [netmask <address>] [dstaddr <address>]\n" \
+ " [del ADDRESS[/PREFIXLEN]]\n") \
+ " [[-]broadcast [ADDRESS]] [[-]pointopoint [ADDRESS]]\n" \
+ " [netmask ADDRESS] [dstaddr ADDRESS]\n" \
USE_FEATURE_IFCONFIG_SLIP( \
- " [outfill <NN>] [keepalive <NN>]\n") \
- " " USE_FEATURE_IFCONFIG_HW("[hw ether <address>] ") "[metric <NN>] [mtu <NN>]\n" \
+ " [outfill NN] [keepalive NN]\n") \
+ " " USE_FEATURE_IFCONFIG_HW("[hw ether ADDRESS] ") "[metric NN] [mtu NN]\n" \
" [[-]trailers] [[-]arp] [[-]allmulti]\n" \
- " [multicast] [[-]promisc] [txqueuelen <NN>] [[-]dynamic]\n" \
+ " [multicast] [[-]promisc] [txqueuelen NN] [[-]dynamic]\n" \
USE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ( \
- " [mem_start <NN>] [io_addr <NN>] [irq <NN>]\n") \
+ " [mem_start NN] [io_addr NN] [irq NN]\n") \
" [up|down] ..."
#define ifup_trivial_usage \
- "<-ahinv> <ifaces...>"
+ "[-ahinv] ifaces..."
#define ifup_full_usage \
"Options:\n" \
" -a De/configure all interfaces automatically\n" \
" -f Force de/configuration"
#define ifdown_trivial_usage \
- "<-ahinv> <ifaces...>"
+ "[-ahinv] ifaces..."
#define ifdown_full_usage \
"Options:\n" \
" -a De/configure all interfaces automatically\n" \
" -x Do not export externs"
#define install_trivial_usage \
- "[-cgmops] [sources] <dest|directory>"
+ "[-cgmops] [sources] dest|directory"
#define install_full_usage \
"Copy files and set attributes" \
"\n\nOptions:\n" \
" SCOPE-ID := [host | link | global | NUMBER]"
#define ipcalc_trivial_usage \
- "[OPTION]... <ADDRESS>[[/]<NETMASK>] [NETMASK]"
+ "[OPTION]... ADDRESS[[/]NETMASK] [NETMASK]"
#define ipcalc_full_usage \
"Calculate IP network settings from a IP address" \
"\n\nOptions:" \
" reached"
#define setarch_trivial_usage \
- "<personality> <program> [args ...]"
+ "personality program [args ...]"
#define setarch_full_usage \
"Personality may be:\n" \
" linux32 Set 32bit uname emulation\n" \
"to standard output. With no FILE, or when FILE is -, read standard input."
#define openvt_trivial_usage \
- "<vtnum> <COMMAND> [ARGS...]"
+ "VTNUM COMMAND [ARGS...]"
#define openvt_full_usage \
"Start a command on a new virtual terminal"
#define openvt_example_usage \
" -l Locks (disables) the specified user account\n" \
" -u Unlocks (re-enables) the specified user account"
+#define chpasswd_trivial_usage \
+ "[--md5|--encrypt]"
+#define chpasswd_full_usage \
+ "Read user:password information from stdin\n" \
+ "and update /etc/passwd accordingly." \
+ "\n\nOptions:" \
+ "\n -e, --encrypt Supplied passwords are in encrypted form" \
+ "\n -m, --md5 Use MD5 encryption instead of DES"
+
#define patch_trivial_usage \
- "[-p<num>] [-i <diff>]"
+ "[-p num] [-i diff]"
#define patch_full_usage \
" -p NUM Strip NUM leading components from file names\n" \
" -i DIFF Read DIFF instead of stdin"
"the new root file system"
#define poweroff_trivial_usage \
- "[-d<delay>] [-n<nosync>] [-f<force>]"
+ "[-d delay] [-n] [-f]"
#define poweroff_full_usage \
"Halt and shut off power" \
"\n\nOptions:\n" \
"[OPTIONS]..."
#define readprofile_full_usage \
"Options:\n" \
- " -m <mapfile> (Default: /boot/System.map)\n" \
- " -p <profile> (Default: /proc/profile)\n" \
- " -M <mult> Set the profiling multiplier to <mult>\n" \
+ " -m mapfile (Default: /boot/System.map)\n" \
+ " -p profile (Default: /proc/profile)\n" \
+ " -M mult Set the profiling multiplier to mult\n" \
" -i Print only info about the sampling step\n" \
" -v Verbose\n" \
" -a Print all symbols, even if count is 0\n" \
"Return the absolute pathnames of given argument"
#define reboot_trivial_usage \
- "[-d<delay>] [-n<nosync>] [-f<force>]"
+ "[-d delay] [-n] [-f]"
#define reboot_full_usage \
"Reboot the system" \
"\n\nOptions:\n" \
"\n\nOptions:" \
"\n -S|--start Start" \
"\n -K|--stop Stop" \
- "\n -a|--startas <pathname> Starts process specified by pathname" \
+ "\n -a|--startas pathname Starts process specified by pathname" \
"\n -b|--background Force process into background" \
- "\n -u|--user <username>|<uid> Stop this user's processes" \
- "\n -x|--exec <executable> Program to either start or check" \
+ "\n -u|--user username|uid Stop this user's processes" \
+ "\n -x|--exec executable Program to either start or check" \
"\n -m|--make-pidfile Create the -p file and enter pid in it" \
- "\n -n|--name <process-name> Stop processes with this name" \
- "\n -p|--pidfile <pid-file> Save or load pid using a pid-file" \
+ "\n -n|--name process-name Stop processes with this name" \
+ "\n -p|--pidfile pid-file Save or load pid using a pid-file" \
"\n -q|--quiet Quiet" \
USE_FEATURE_START_STOP_DAEMON_FANCY( \
"\n -o|--oknodo Exit status 0 if nothing done" \
"\n -v|--verbose Verbose" \
- "\n -N|--nicelevel <N> Add N to process's nice level" \
+ "\n -N|--nicelevel N Add N to process's nice level" \
) \
- "\n -s|--signal <signal> Signal to send (default TERM)" \
- "\n -c|--chuid <user>[:[<group>]] Change to specified user/group"
+ "\n -s|--signal signal Signal to send (default TERM)" \
+ "\n -c|--chuid user[:[group]] Change to specified user/group"
#define stat_trivial_usage \
"[OPTION] FILE..."
"sysctl [-n] variable ...\n" \
"sysctl [-n] -w variable=value ...\n" \
"sysctl [-n] -a\n" \
- "sysctl [-n] -p <file> (default /etc/sysctl.conf)\n" \
+ "sysctl [-n] -p file (default /etc/sysctl.conf)\n" \
"sysctl [-n] -A\n"
#define syslogd_trivial_usage \
" -a Lock all VTs"
#define watch_trivial_usage \
- "[-n <seconds>] [-t] COMMAND..."
+ "[-n seconds] [-t] COMMAND..."
#define watch_full_usage \
"Execute a program periodically" \
"\n\nOptions:\n" \
"Mon Dec 17 10:31:44 GMT 2000"
#define watchdog_trivial_usage \
- "[-t <seconds>] [-F] DEV"
+ "[-t seconds] [-F] DEV"
#define watchdog_full_usage \
"Periodically write to watchdog device DEV" \
"\n\nOptions:\n" \
lib-$(CONFIG_FEATURE_MOUNT_LOOP) += loop.o
lib-$(CONFIG_LOSETUP) += loop.o
lib-$(CONFIG_FEATURE_MTAB_SUPPORT) += mtab.o
-lib-$(CONFIG_PASSWD) += pw_encrypt.o crypt_make_salt.o
+lib-$(CONFIG_PASSWD) += pw_encrypt.o crypt_make_salt.o update_passwd.o
+lib-$(CONFIG_CHPASSWD) += pw_encrypt.o crypt_make_salt.o update_passwd.o
lib-$(CONFIG_CRYPTPW) += pw_encrypt.o crypt_make_salt.o
lib-$(CONFIG_SULOGIN) += pw_encrypt.o
lib-$(CONFIG_FEATURE_HTTPD_AUTH_MD5) += pw_encrypt.o
return ('a' - 38 + i);
}
-
-void crypt_make_salt(char *p, int cnt)
+int crypt_make_salt(char *p, int cnt, int x)
{
- unsigned x = x; /* it's pointless to initialize it anyway :) */
-
- x += getpid() + time(NULL) + clock();
+ x += getpid() + time(NULL);
do {
/* x = (x*1664525 + 1013904223) % 2^32 generator is lame
* (low-order bit is not "random", etc...),
*p++ = i64c(x >> 22);
} while (--cnt);
*p = '\0';
+ return x;
}
-
help
Applet for crypting a string.
+config CHPASSWD
+ bool "chpasswd"
+ default n
+ help
+ chpasswd reads a file of user name and password pairs from
+ standard input and uses this information to update a group of
+ existing users.
+
config SU
bool "su"
default n
lib-$(CONFIG_ADDGROUP) += addgroup.o
lib-$(CONFIG_ADDUSER) += adduser.o
lib-$(CONFIG_CRYPTPW) += cryptpw.o
+lib-$(CONFIG_CHPASSWD) += chpasswd.o
lib-$(CONFIG_GETTY) += getty.o
lib-$(CONFIG_LOGIN) += login.o
lib-$(CONFIG_PASSWD) += passwd.o
/* Too ugly, and needs even more magic to handle endianness: */
//((uint32_t*)&salt)[0] = '$' + '1'*0x100 + '$'*0x10000;
/* Hope one day gcc will do it itself (inlining strcpy) */
- crypt_make_salt(salt + 3, 4); /* md5 */
+ crypt_make_salt(salt + 3, 4, 0); /* md5 */
} else {
- crypt_make_salt(salt, 1); /* des */
+ crypt_make_salt(salt, 1, 0); /* des */
}
puts(pw_encrypt(argv[optind] ? argv[optind] : xmalloc_getline(stdin), salt));
}
/*memset(salt, 0, sizeof(salt)); - why?*/
- crypt_make_salt(salt, 1); /* des */
+ crypt_make_salt(salt, 1, 0); /* des */
if (algo) { /* MD5 */
strcpy(salt, "$1$");
- crypt_make_salt(salt + 3, 4);
+ crypt_make_salt(salt + 3, 4, 0);
}
ret = xstrdup(pw_encrypt(newp, salt)); /* returns ptr to static */
/* whee, success! */
return ret;
}
-
-static int update_passwd(const char *filename, const char *username,
- const char *new_pw)
-{
- struct stat sb;
- struct flock lock;
- FILE *old_fp;
- FILE *new_fp;
- char *new_name;
- char *last_char;
- unsigned user_len;
- int old_fd;
- int new_fd;
- int i;
- int ret = 1; /* failure */
-
- logmode = LOGMODE_STDIO;
- /* New passwd file, "/etc/passwd+" for now */
- new_name = xasprintf("%s+", filename);
- last_char = &new_name[strlen(new_name)-1];
- username = xasprintf("%s:", username);
- user_len = strlen(username);
-
- old_fp = fopen(filename, "r+");
- if (!old_fp)
- goto free_mem;
- old_fd = fileno(old_fp);
-
- /* Try to create "/etc/passwd+". Wait if it exists. */
- i = 30;
- do {
- // FIXME: on last iteration try w/o O_EXCL but with O_TRUNC?
- new_fd = open(new_name, O_WRONLY|O_CREAT|O_EXCL,0600);
- if (new_fd >= 0) goto created;
- if (errno != EEXIST) break;
- usleep(100000); /* 0.1 sec */
- } while (--i);
- bb_perror_msg("cannot create '%s'", new_name);
- goto close_old_fp;
- created:
- if (!fstat(old_fd, &sb)) {
- fchmod(new_fd, sb.st_mode & 0777); /* ignore errors */
- fchown(new_fd, sb.st_uid, sb.st_gid);
- }
- new_fp = fdopen(new_fd, "w");
- if (!new_fp) {
- close(new_fd);
- goto unlink_new;
- }
-
- /* Backup file is "/etc/passwd-" */
- last_char[0] = '-';
- /* Delete old one, create new as a hardlink to current */
- i = (unlink(new_name) && errno != ENOENT);
- if (i || link(filename, new_name))
- bb_perror_msg("warning: cannot create backup copy '%s'", new_name);
- last_char[0] = '+';
-
- /* Lock the password file before updating */
- lock.l_type = F_WRLCK;
- lock.l_whence = SEEK_SET;
- lock.l_start = 0;
- lock.l_len = 0;
- if (fcntl(old_fd, F_SETLK, &lock) < 0)
- bb_perror_msg("warning: cannot lock '%s'", filename);
- lock.l_type = F_UNLCK;
-
- /* Read current password file, write updated one */
- while (1) {
- char *line = xmalloc_fgets(old_fp);
- if (!line) break; /* EOF/error */
- if (strncmp(username, line, user_len) == 0) {
- /* we have a match with "username:"... */
- const char *cp = line + user_len;
- /* now cp -> old passwd, skip it: */
- cp = strchr(cp, ':');
- if (!cp) cp = "";
- /* now cp -> ':' after old passwd or -> "" */
- fprintf(new_fp, "%s%s%s", username, new_pw, cp);
- /* Erase password in memory */
- } else
- fputs(line, new_fp);
- free(line);
- }
- fcntl(old_fd, F_SETLK, &lock);
-
- /* We do want all of them to execute, thus | instead of || */
- if ((ferror(old_fp) | fflush(new_fp) | fsync(new_fd) | fclose(new_fp))
- || rename(new_name, filename)
- ) {
- /* At least one of those failed */
- goto unlink_new;
- }
- ret = 0; /* whee, success! */
-
- unlink_new:
- if (ret) unlink(new_name);
-
- close_old_fp:
- fclose(old_fp);
-
- free_mem:
- if (ENABLE_FEATURE_CLEAN_UP) free(new_name);
- if (ENABLE_FEATURE_CLEAN_UP) free((char*)username);
- logmode = LOGMODE_BOTH;
- return ret;
-}
-
-
int passwd_main(int argc, char **argv);
int passwd_main(int argc, char **argv)
{
/*STATE_ALGO_des = 0x20, not needed yet */
};
unsigned opt;
+ int rc;
const char *opt_a = "";
const char *filename;
char *myname;
signal(SIGQUIT, SIG_IGN);
umask(077);
xsetuid(0);
- if (update_passwd(filename, name, newp) != 0) {
- /* LOGMODE_BOTH */
+ rc = update_passwd(filename, name, newp);
+ logmode = LOGMODE_BOTH;
+ if (rc < 0)
bb_error_msg_and_die("cannot update password file %s",
filename);
- }
- /* LOGMODE_BOTH */
bb_info_msg("Password for %s changed by %s", name, myname);
if (ENABLE_FEATURE_CLEAN_UP) free(newp);
CONFIG_PASSWD=y
CONFIG_FEATURE_PASSWD_WEAK_CHECK=y
CONFIG_CRYPTPW=y
+CONFIG_CHPASSWD=y
CONFIG_SU=y
CONFIG_FEATURE_SU_SYSLOG=y
CONFIG_FEATURE_SU_CHECKS_SHELLS=y
cat busybox_ld.err
exit 1
}
+mv busybox_unstripped busybox_unstripped.tmp
# Now try to remove each lib and build without.
# Stop when no lib can be removed.
+ever_discarded=false
while test "$BBOX_LIB_LIST"; do
$debug && echo "Trying libraries: $BBOX_LIB_LIST"
all_needed=true
echo "Library $one is not needed"
BBOX_LIB_LIST="$without_one"
all_needed=false
+ ever_discarded=true
else
echo "Library $one is needed"
fi
#echo "$BBOX_LIB_LIST" | grep -q ' ' || break
done
-# Ok, make the binary
-echo "Final link with: $BBOX_LIB_LIST"
-l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/'`
-try "-Wl,--start-group $l_list -Wl,--end-group" "$@"
+mv busybox_unstripped.tmp busybox_unstripped
+$ever_discarded && {
+ # Ok, make the binary
+ echo "Final link with: $BBOX_LIB_LIST"
+ l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/'`
+ try "-Wl,--start-group $l_list -Wl,--end-group" "$@"
+}
+exit 0 # Ensure "success" exit code
projects / oweals / busybox.git / commitdiff