Bump version to 1.32.0

[oweals/busybox.git] / runit / chpst.c

diff --git a/runit/chpst.c b/runit/chpst.c
index 71af29f66cf1440d01d1a9512a62c0273735685d..af777568fc5cd180882ac913e53542cb78f0c42c 100644 (file)
--- a/runit/chpst.c
+++ b/runit/chpst.c
@@ -13,7 +13,7 @@ modification, are permitted provided that the following conditions are met:
    3. The name of the author may not be used to endorse or promote products
       derived from this software without specific prior written permission.
 
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
@@ -26,7 +26,51 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 /* Busyboxed by Denys Vlasenko <vda.linux@googlemail.com> */
-/* Dependencies on runit_lib.c removed */
+
+//config:config CHPST
+//config:      bool "chpst (9 kb)"
+//config:      default y
+//config:      help
+//config:      chpst changes the process state according to the given options, and
+//config:      execs specified program.
+//config:
+//config:config SETUIDGID
+//config:      bool "setuidgid (4 kb)"
+//config:      default y
+//config:      help
+//config:      Sets soft resource limits as specified by options
+//config:
+//config:config ENVUIDGID
+//config:      bool "envuidgid (3.9 kb)"
+//config:      default y
+//config:      help
+//config:      Sets $UID to account's uid and $GID to account's gid
+//config:
+//config:config ENVDIR
+//config:      bool "envdir (2.5 kb)"
+//config:      default y
+//config:      help
+//config:      Sets various environment variables as specified by files
+//config:      in the given directory
+//config:
+//config:config SOFTLIMIT
+//config:      bool "softlimit (4.5 kb)"
+//config:      default y
+//config:      help
+//config:      Sets soft resource limits as specified by options
+
+//applet:IF_CHPST(    APPLET_NOEXEC(chpst,     chpst, BB_DIR_USR_BIN, BB_SUID_DROP, chpst))
+//                    APPLET_NOEXEC:name       main   location        suid_type     help
+//applet:IF_ENVDIR(   APPLET_NOEXEC(envdir,    chpst, BB_DIR_USR_BIN, BB_SUID_DROP, envdir))
+//applet:IF_ENVUIDGID(APPLET_NOEXEC(envuidgid, chpst, BB_DIR_USR_BIN, BB_SUID_DROP, envuidgid))
+//applet:IF_SETUIDGID(APPLET_NOEXEC(setuidgid, chpst, BB_DIR_USR_BIN, BB_SUID_DROP, setuidgid))
+//applet:IF_SOFTLIMIT(APPLET_NOEXEC(softlimit, chpst, BB_DIR_USR_BIN, BB_SUID_DROP, softlimit))
+
+//kbuild:lib-$(CONFIG_CHPST) += chpst.o
+//kbuild:lib-$(CONFIG_ENVDIR) += chpst.o
+//kbuild:lib-$(CONFIG_ENVUIDGID) += chpst.o
+//kbuild:lib-$(CONFIG_SETUIDGID) += chpst.o
+//kbuild:lib-$(CONFIG_SOFTLIMIT) += chpst.o
 
 //usage:#define chpst_trivial_usage
 //usage:       "[-vP012] [-u USER[:GRP]] [-U USER[:GRP]] [-e DIR]\n"
@@ -91,7 +135,6 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //usage:     "\n                       a SIGXCPU after N seconds"
 
 #include "libbb.h"
-#include <sys/resource.h> /* getrlimit */
 
 /*
 Five applets here: chpst, envdir, envuidgid, setuidgid, softlimit.
@@ -212,8 +255,7 @@ static NOINLINE void edir(const char *directory_name)
                xsetenv(d->d_name, buf);
        }
        closedir(dir);
-       if (fchdir(wdir) == -1)
-               bb_perror_msg_and_die("fchdir");
+       xfchdir(wdir);
        close(wdir);
 }
 
@@ -228,7 +270,7 @@ static void limit(int what, long l)
        else
                r.rlim_cur = l;
        if (setrlimit(what, &r) == -1)
-               bb_perror_msg_and_die("setrlimit");
+               bb_simple_perror_msg_and_die("setrlimit");
 }
 
 int chpst_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -258,9 +300,10 @@ int chpst_main(int argc UNUSED_PARAM, char **argv)
                // FIXME: can we live with int-sized limits?
                // can we live with 40000 days?
                // if yes -> getopt converts strings to numbers for us
-               opt_complementary = "-1:a+:c+:d+:f+:l+:m+:o+:p+:r+:s+:t+";
-               opt = getopt32(argv, "+a:c:d:f:l:m:o:p:r:s:t:u:U:e:"
-                       IF_CHPST("/:n:vP012"),
+               opt = getopt32(argv, "^+"
+                       "a:+c:+d:+f:+l:+m:+o:+p:+r:+s:+t:+u:U:e:"
+                       IF_CHPST("/:n:vP012")
+                       "\0" "-1",
                        &limita, &limitc, &limitd, &limitf, &limitl,
                        &limitm, &limito, &limitp, &limitr, &limits, &limitt,
                        &set_user, &set_user, &env_dir
@@ -420,19 +463,20 @@ int chpst_main(int argc UNUSED_PARAM, char **argv)
                xchroot(root);
        }
 
+       /* nice should be done before xsetuid */
+       if (opt & OPT_n) {
+               errno = 0;
+               if (nice(xatoi(nicestr)) == -1)
+                       bb_simple_perror_msg_and_die("nice");
+       }
+
        if (opt & OPT_u) {
                if (setgroups(1, &ugid.gid) == -1)
-                       bb_perror_msg_and_die("setgroups");
+                       bb_simple_perror_msg_and_die("setgroups");
                xsetgid(ugid.gid);
                xsetuid(ugid.uid);
        }
 
-       if (opt & OPT_n) {
-               errno = 0;
-               if (nice(xatoi(nicestr)) == -1)
-                       bb_perror_msg_and_die("nice");
-       }
-
        if (opt & OPT_0)
                close(STDIN_FILENO);
        if (opt & OPT_1)