- use EXIT_{SUCCESS,FAILURE}. No object-code changes

45 files changed, 85 insertions, 85 deletions

diff --git a/applets/individual.c b/applets/individual.c
index 0c7a4b73e..414a11b05 100644
--- a/applets/individual.c
+++ b/applets/individual.c
@@ -22,5 +22,5 @@ void bb_show_usage(void)
 {
         printf(APPLET_full_usage "\n");
 
-        exit(1);
+        exit(EXIT_FAILURE);
 }
diff --git a/archival/libunarchive/get_header_tar.c b/archival/libunarchive/get_header_tar.c
index 0be29b7ce..187552c28 100644
--- a/archival/libunarchive/get_header_tar.c
+++ b/archival/libunarchive/get_header_tar.c
@@ -99,7 +99,7 @@ char get_header_tar(archive_handle_t *archive_handle)
          * "tar: A lone zero block at N", where N = kilobyte
          * where EOF was met (not EOF block, actual EOF!),
          * and tar will exit with error code 0.
-         * We will mimic exit(0), although we will not mimic
+         * We will mimic exit(EXIT_SUCCESS), although we will not mimic
          * the message and we don't check whether we indeed
          * saw zero block directly before this. */
         if (i == 0)
diff --git a/archival/libunarchive/open_transformer.c b/archival/libunarchive/open_transformer.c
index 8fb860234..d0a2b7c36 100644
--- a/archival/libunarchive/open_transformer.c
+++ b/archival/libunarchive/open_transformer.c
@@ -40,7 +40,7 @@ int open_transformer(int src_fd,
                         close(fd_pipe.wr); /* Send EOF */
                         close(src_fd);
                 }
-                exit(0);
+                exit(EXIT_SUCCESS);
 #else
                 {
                         char *argv[4];
diff --git a/archival/tar.c b/archival/tar.c
index be59f0441..545081a01 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -552,7 +552,7 @@ static void NOINLINE vfork_compressor(int tar_fd, int gzip)
                 /* exec gzip/bzip2 program/applet */
                 BB_EXECLP(zip_exec, zip_exec, "-f", NULL);
                 vfork_exec_errno = errno;
-                _exit(1);
+                _exit(EXIT_FAILURE);
         }
 
         /* parent */
diff --git a/console-tools/resize.c b/console-tools/resize.c
index 01b1442f6..8a50f9dcd 100644
--- a/console-tools/resize.c
+++ b/console-tools/resize.c
@@ -17,7 +17,7 @@ static void
 onintr(int sig ATTRIBUTE_UNUSED)
 {
         tcsetattr(STDERR_FILENO, TCSANOW, &old_termios);
-        exit(1);
+        exit(EXIT_FAILURE);
 }
 
 int resize_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
diff --git a/coreutils/cal.c b/coreutils/cal.c
index 8a08a9ae7..8a93057b0 100644
--- a/coreutils/cal.c
+++ b/coreutils/cal.c
@@ -179,7 +179,7 @@ int cal_main(int argc, char **argv)
                 }
         }
 
-        fflush_stdout_and_exit(0);
+        fflush_stdout_and_exit(EXIT_SUCCESS);
 }
 
 /*
diff --git a/coreutils/env.c b/coreutils/env.c
index 20cf348d6..e21740d98 100644
--- a/coreutils/env.c
+++ b/coreutils/env.c
@@ -85,7 +85,7 @@ int env_main(int argc ATTRIBUTE_UNUSED, char **argv)
                 puts(*ep);
         }
 
-        fflush_stdout_and_exit(0);
+        fflush_stdout_and_exit(EXIT_SUCCESS);
 }
 
 /*
diff --git a/coreutils/printenv.c b/coreutils/printenv.c
index 31d76d712..2fc01f22f 100644
--- a/coreutils/printenv.c
+++ b/coreutils/printenv.c
@@ -29,5 +29,5 @@ int printenv_main(int argc ATTRIBUTE_UNUSED, char **argv)
                 }
         }
 
-        fflush_stdout_and_exit(0);
+        fflush_stdout_and_exit(EXIT_SUCCESS);
 }
diff --git a/coreutils/printf.c b/coreutils/printf.c
index a12f7cae7..7c7613152 100644
--- a/coreutils/printf.c
+++ b/coreutils/printf.c
@@ -266,7 +266,7 @@ static char **print_formatted(char *format, char **argv)
                         break;
                 case '\\':
                         if (*++f == 'c')
-                                exit(0);
+                                exit(EXIT_SUCCESS);
                         bb_putchar(bb_process_escape_sequence((const char **)&f));
                         f--;
                         break;
diff --git a/debianutils/start_stop_daemon.c b/debianutils/start_stop_daemon.c
index 524259979..8d73bdc80 100644
--- a/debianutils/start_stop_daemon.c
+++ b/debianutils/start_stop_daemon.c
@@ -403,7 +403,7 @@ int start_stop_daemon_main(int argc ATTRIBUTE_UNUSED, char **argv)
                         /* parent */
                         /* why _exit? the child may have changed the stack,
                          * so "return 0" may do bad things */
-                        _exit(0);
+                        _exit(EXIT_SUCCESS);
                 }
                 /* child */
                 setsid(); /* detach from controlling tty */
diff --git a/findutils/grep.c b/findutils/grep.c
index b319e22ce..6af1b46e1 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -35,7 +35,7 @@
 enum {
         OPTBIT_l, /* list matched file names only */
         OPTBIT_n, /* print line# */
-        OPTBIT_q, /* quiet - exit(0) of first match */
+        OPTBIT_q, /* quiet - exit(EXIT_SUCCESS) of first match */
         OPTBIT_v, /* invert the match, to select non-matching lines */
         OPTBIT_s, /* suppress errors about file open errors */
         OPTBIT_c, /* count matches per file (suppresses normal output) */
@@ -224,7 +224,7 @@ static int grep_file(FILE *file)
                                          * "exit immediately with zero status
                                          * if any match is found,
                                          * even if errors were detected" */
-                                        exit(0);
+                                        exit(EXIT_SUCCESS);
                                 }
                                 /* if we're just printing filenames, we stop after the first match */
                                 if (PRINT_FILES_WITH_MATCHES) {
diff --git a/findutils/xargs.c b/findutils/xargs.c
index d1cf192b1..352f7e64c 100644
--- a/findutils/xargs.c
+++ b/findutils/xargs.c
@@ -517,7 +517,7 @@ void bb_show_usage(void)
 {
         fprintf(stderr, "Usage: %s [-p] [-r] [-t] -[x] [-n max_arg] [-s max_chars]\n",
                 applet_name);
-        exit(1);
+        exit(EXIT_FAILURE);
 }
 
 int main(int argc, char **argv)
diff --git a/init/init.c b/init/init.c
index e2fde5f23..63154ce89 100644
--- a/init/init.c
+++ b/init/init.c
@@ -301,7 +301,7 @@ static void open_stdio_to_tty(const char* tty_name, int exit_on_failure)
                         message(L_LOG | L_CONSOLE, "Can't open %s: %s",
                                 tty_name, strerror(errno));
                         if (exit_on_failure)
-                                _exit(1);
+                                _exit(EXIT_FAILURE);
                         if (ENABLE_DEBUG_INIT)
                                 _exit(2);
                 /* NB: we don't reach this if we were called after vfork.
@@ -415,7 +415,7 @@ static pid_t run(const struct init_action *a)
                 pid = fork();
                 if (pid < 0) {
                         message(L_LOG | L_CONSOLE, "Can't fork");
-                        _exit(1);
+                        _exit(EXIT_FAILURE);
                 }
 
                 if (pid > 0) {
@@ -430,21 +430,21 @@ static pid_t run(const struct init_action *a)
                         waitfor(pid);
                         /* See if stealing the controlling tty back is necessary */
                         if (tcgetpgrp(0) != getpid())
-                                _exit(0);
+                                _exit(EXIT_SUCCESS);
 
                         /* Use a temporary process to steal the controlling tty. */
                         pid = fork();
                         if (pid < 0) {
                                 message(L_LOG | L_CONSOLE, "Can't fork");
-                                _exit(1);
+                                _exit(EXIT_FAILURE);
                         }
                         if (pid == 0) {
                                 setsid();
                                 ioctl(0, TIOCSCTTY, 1);
-                                _exit(0);
+                                _exit(EXIT_SUCCESS);
                         }
                         waitfor(pid);
-                        _exit(0);
+                        _exit(EXIT_SUCCESS);
                 }
 
                 /* Child - fall though to actually execute things */
@@ -531,13 +531,13 @@ static void run_actions(int action_type)
 static void init_reboot(unsigned long magic)
 {
         pid_t pid;
-        /* We have to fork here, since the kernel calls do_exit(0) in
+        /* We have to fork here, since the kernel calls do_exit(EXIT_SUCCESS) in
          * linux/kernel/sys.c, which can cause the machine to panic when
          * the init process is killed.... */
         pid = vfork();
         if (pid == 0) { /* child */
                 reboot(magic);
-                _exit(0);
+                _exit(EXIT_SUCCESS);
         }
         waitfor(pid);
 }
@@ -821,7 +821,7 @@ static void reload_signal(int sig ATTRIBUTE_UNUSED)
                                         kill(pid, SIGKILL);
                                 }
                         }
-                        _exit(0);
+                        _exit(EXIT_SUCCESS);
                 }
 #endif
         }
@@ -936,7 +936,7 @@ int init_main(int argc ATTRIBUTE_UNUSED, char **argv)
                         /* SELinux in enforcing mode but load_policy failed */
                         message(L_CONSOLE, "Cannot load SELinux Policy. "
                                 "Machine is in enforcing mode. Halting now.");
-                        exit(1);
+                        exit(EXIT_FAILURE);
                 }
         }
 #endif /* CONFIG_SELINUX */
diff --git a/libbb/signals.c b/libbb/signals.c
index 685c55230..1342c89a8 100644
--- a/libbb/signals.c
+++ b/libbb/signals.c
@@ -89,7 +89,7 @@ void kill_myself_with_sig(int sig)
         signal(sig, SIG_DFL);
         sig_unblock(sig);
         raise(sig);
-        _exit(1); /* Should not reach it */
+        _exit(EXIT_FAILURE); /* Should not reach it */
 }
 
 void signal_SA_RESTART_empty_mask(int sig, void (*handler)(int))
diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c
index 7064eb3fb..9624efbb9 100644
--- a/libbb/vfork_daemon_rexec.c
+++ b/libbb/vfork_daemon_rexec.c
@@ -230,7 +230,7 @@ void forkexit_or_rexec(char **argv)
         if (pid < 0) /* wtf? */
                 bb_perror_msg_and_die("vfork");
         if (pid) /* parent */
-                exit(0);
+                exit(EXIT_SUCCESS);
         /* child - re-exec ourself */
         re_exec(argv);
 }
@@ -244,7 +244,7 @@ void forkexit_or_rexec(void)
         if (pid < 0) /* wtf? */
                 bb_perror_msg_and_die("fork");
         if (pid) /* parent */
-                exit(0);
+                exit(EXIT_SUCCESS);
         /* child */
 }
 #define forkexit_or_rexec(argv) forkexit_or_rexec()
diff --git a/loginutils/getty.c b/loginutils/getty.c
index 5e161823a..f022aec59 100644
--- a/loginutils/getty.c
+++ b/loginutils/getty.c
@@ -423,7 +423,7 @@ static char *get_logname(char *logname, unsigned size_logname,
                         /* Do not report trivial EINTR/EIO errors. */
                         if (read(0, &c, 1) < 1) {
                                 if (errno == EINTR || errno == EIO)
-                                        exit(0);
+                                        exit(EXIT_SUCCESS);
                                 bb_perror_msg_and_die("%s: read", op->tty);
                         }
 
@@ -475,7 +475,7 @@ static char *get_logname(char *logname, unsigned size_logname,
                                 }
                                 break;
                         case CTL('D'):
-                                exit(0);
+                                exit(EXIT_SUCCESS);
                         default:
                                 if (!isascii(ascval) || !isprint(ascval)) {
                                         /* ignore garbage characters */
diff --git a/loginutils/login.c b/loginutils/login.c
index e8fe74e16..900a7c042 100644
--- a/loginutils/login.c
+++ b/loginutils/login.c
@@ -130,7 +130,7 @@ static void die_if_nologin(void)
                 fclose(fp);
         } else
                 puts("\r\nSystem closed for routine maintenance\r");
-        exit(1);
+        exit(EXIT_FAILURE);
 }
 #else
 static ALWAYS_INLINE void die_if_nologin(void) {}
@@ -178,18 +178,18 @@ static void get_username_or_die(char *buf, int size_buf)
         /* skip whitespace */
         do {
                 c = getchar();
-                if (c == EOF) exit(1);
+                if (c == EOF) exit(EXIT_FAILURE);
                 if (c == '\n') {
-                        if (!--cntdown) exit(1);
+                        if (!--cntdown) exit(EXIT_FAILURE);
                         goto prompt;
                 }
         } while (isspace(c));
 
         *buf++ = c;
         if (!fgets(buf, size_buf-2, stdin))
-                exit(1);
+                exit(EXIT_FAILURE);
         if (!strchr(buf, '\n'))
-                exit(1);
+                exit(EXIT_FAILURE);
         while (isgraph(*buf)) buf++;
         *buf = '\0';
 }
diff --git a/loginutils/vlock.c b/loginutils/vlock.c
index 96c1f679a..3ce40dd62 100644
--- a/loginutils/vlock.c
+++ b/loginutils/vlock.c
@@ -102,5 +102,5 @@ int vlock_main(int argc ATTRIBUTE_UNUSED, char **argv)
 
         ioctl(STDIN_FILENO, VT_SETMODE, &ovtm);
         tcsetattr(STDIN_FILENO, TCSANOW, &oterm);
-        fflush_stdout_and_exit(0);
+        fflush_stdout_and_exit(EXIT_SUCCESS);
 }
diff --git a/miscutils/crond.c b/miscutils/crond.c
index 6db4df422..2bed5a4b1 100644
--- a/miscutils/crond.c
+++ b/miscutils/crond.c
@@ -797,7 +797,7 @@ ForkJob(const char *user, CronLine *line, int mailFd,
                 if (mail_filename) {
                         fdprintf(1, "Exec failed: %s -c %s\n", prog, arg);
                 }
-                _exit(0);
+                _exit(EXIT_SUCCESS);
         }
 
         line->cl_Pid = pid;
@@ -930,7 +930,7 @@ static void RunJob(const char *user, CronLine *line)
                 execl(DEFAULT_SHELL, DEFAULT_SHELL, "-c", line->cl_Shell, NULL);
                 crondlog(ERR20 "can't exec, user %s cmd %s %s %s", user,
                                  DEFAULT_SHELL, "-c", line->cl_Shell);
-                _exit(0);
+                _exit(EXIT_SUCCESS);
         }
         if (pid < 0) {
                 /* FORK FAILED */
diff --git a/miscutils/devfsd.c b/miscutils/devfsd.c
index bb6b679b9..782457ac7 100644
--- a/miscutils/devfsd.c
+++ b/miscutils/devfsd.c
@@ -283,9 +283,9 @@ static const char bb_msg_variable_not_found[] ALIGN1 = "variable: %s not found";
 #else
 #define info_logger(p, fmt, args...)
 #define msg_logger(p, fmt, args...)
-#define msg_logger_and_die(p, fmt, args...)           exit(1)
+#define msg_logger_and_die(p, fmt, args...)           exit(EXIT_FAILURE)
 #define error_logger(p, fmt, args...)
-#define error_logger_and_die(p, fmt, args...)         exit(1)
+#define error_logger_and_die(p, fmt, args...)         exit(EXIT_FAILURE)
 #endif
 
 static void safe_memcpy(char *dest, const char *src, int len)
@@ -402,7 +402,7 @@ int devfsd_main(int argc, char **argv)
         dir_operation(SERVICE, mount_point, 0, NULL);
 
         if (ENABLE_DEVFSD_FG_NP && no_polling)
-                exit(0);
+                exit(EXIT_SUCCESS);
 
         if (ENABLE_DEVFSD_VERBOSE || ENABLE_DEBUG)
                 logmode = LOGMODE_BOTH;
diff --git a/miscutils/less.c b/miscutils/less.c
index 25b91c0fe..f69bce97e 100644
--- a/miscutils/less.c
+++ b/miscutils/less.c
@@ -882,7 +882,7 @@ static void colon_process(void)
                 change_file(-1);
                 break;
         case 'q':
-                less_exit(0);
+                less_exit(EXIT_SUCCESS);
                 break;
         case 'x':
                 change_file(0);
@@ -1270,7 +1270,7 @@ static void keypress_process(int keypress)
                 buffer_line(cur_fline);
                 break;
         case 'q': case 'Q':
-                less_exit(0);
+                less_exit(EXIT_SUCCESS);
                 break;
 #if ENABLE_FEATURE_LESS_MARKS
         case 'm':
diff --git a/miscutils/time.c b/miscutils/time.c
index ed4385948..a6d158c53 100644
--- a/miscutils/time.c
+++ b/miscutils/time.c
@@ -424,5 +424,5 @@ int time_main(int argc ATTRIBUTE_UNUSED, char **argv)
                 return WTERMSIG(res.waitstatus);
         if (WIFEXITED(res.waitstatus))
                 return WEXITSTATUS(res.waitstatus);
-        fflush_stdout_and_exit(0);
+        fflush_stdout_and_exit(EXIT_SUCCESS);
 }
diff --git a/miscutils/watchdog.c b/miscutils/watchdog.c
index a5061f5d7..4ad21cbc9 100644
--- a/miscutils/watchdog.c
+++ b/miscutils/watchdog.c
@@ -20,7 +20,7 @@ static void watchdog_shutdown(int sig ATTRIBUTE_UNUSED)
         write(3, &V, 1);        /* Magic, see watchdog-api.txt in kernel */
         if (ENABLE_FEATURE_CLEAN_UP)
                 close(3);
-        exit(0);
+        exit(EXIT_SUCCESS);
 }
 
 int watchdog_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
diff --git a/networking/inetd.c b/networking/inetd.c
index 3be9dcb7f..08c09953b 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -1124,7 +1124,7 @@ static void clean_up_and_exit(int sig ATTRIBUTE_UNUSED)
                         close(sep->se_fd);
         }
         remove_pidfile(_PATH_INETDPID);
-        exit(0);
+        exit(EXIT_SUCCESS);
 }
 
 int inetd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -1344,7 +1344,7 @@ int inetd_main(int argc ATTRIBUTE_UNUSED, char **argv)
                                 else
                                         sep->se_builtin->bi_dgram_fn(ctrl, sep);
                                 if (pid) /* we did vfork */
-                                        _exit(1);
+                                        _exit(EXIT_FAILURE);
                                 maybe_close(accepted_fd);
                                 continue; /* -> check next fd in fd set */
                         }
@@ -1408,7 +1408,7 @@ int inetd_main(int argc ATTRIBUTE_UNUSED, char **argv)
                         /* eat packet in udp case */
                         if (sep->se_socktype != SOCK_STREAM)
                                 recv(0, line, LINE_SIZE, MSG_DONTWAIT);
-                        _exit(1);
+                        _exit(EXIT_FAILURE);
                 } /* for (sep = servtab...) */
         } /* for (;;) */
 }
@@ -1441,7 +1441,7 @@ static void echo_stream(int s, servtab_t *sep ATTRIBUTE_UNUSED)
         close(STDERR_FILENO);
         xopen("/dev/null", O_WRONLY);
         BB_EXECVP("cat", (char**)cat_args);
-        /* on failure we return to main, which does exit(1) */
+        /* on failure we return to main, which does exit(EXIT_FAILURE) */
 #endif
 }
 static void echo_dg(int s, servtab_t *sep)
@@ -1479,7 +1479,7 @@ static void discard_stream(int s, servtab_t *sep ATTRIBUTE_UNUSED)
         /* no error messages please... */
         xdup2(STDOUT_FILENO, STDERR_FILENO);
         BB_EXECVP("cat", (char**)cat_args);
-        /* on failure we return to main, which does exit(1) */
+        /* on failure we return to main, which does exit(EXIT_FAILURE) */
 #endif
 }
 /* ARGSUSED */
diff --git a/networking/libiproute/iptunnel.c b/networking/libiproute/iptunnel.c
index 1190b6867..752d81264 100644
--- a/networking/libiproute/iptunnel.c
+++ b/networking/libiproute/iptunnel.c
@@ -284,7 +284,7 @@ static void parse_args(char **argv, int cmd, struct ip_tunnel_parm *p)
                                 struct ip_tunnel_parm old_p;
                                 memset(&old_p, 0, sizeof(old_p));
                                 if (do_get_ioctl(*argv, &old_p))
-                                        exit(1);
+                                        exit(EXIT_FAILURE);
                                 *p = old_p;
                         }
                 }
diff --git a/networking/nc.c b/networking/nc.c
index 7d4a6e047..27c58a8c8 100644
--- a/networking/nc.c
+++ b/networking/nc.c
@@ -183,7 +183,7 @@ int nc_main(int argc, char **argv)
                                 nread = safe_read(fd, iobuf, sizeof(iobuf));
                                 if (fd == cfd) {
                                         if (nread < 1)
-                                                exit(0);
+                                                exit(EXIT_SUCCESS);
                                         ofd = STDOUT_FILENO;
                                 } else {
                                         if (nread<1) {
diff --git a/networking/ping.c b/networking/ping.c
index c3a71071c..3ac9481c8 100644
--- a/networking/ping.c
+++ b/networking/ping.c
@@ -755,7 +755,7 @@ int ping_main(int argc ATTRIBUTE_UNUSED, char **argv)
 
         dotted = xmalloc_sockaddr2dotted_noport(&lsa->u.sa);
         ping(lsa);
-        print_stats_and_exit(0);
+        print_stats_and_exit(EXIT_SUCCESS);
         /*return EXIT_SUCCESS;*/
 }
 #endif /* FEATURE_FANCY_PING */
diff --git a/networking/slattach.c b/networking/slattach.c
index 3ffbb3ba8..96dec7e5f 100644
--- a/networking/slattach.c
+++ b/networking/slattach.c
@@ -110,13 +110,13 @@ static void set_state(struct termios *state, int encap)
         /* Set encapsulation (SLIP, CSLIP, etc) */
         if (ioctl_or_warn(handle, SIOCSIFENCAP, &encap) < 0) {
  bad:
-                restore_state_and_exit(1);
+                restore_state_and_exit(EXIT_FAILURE);
         }
 }
 
 static void sig_handler(int signo ATTRIBUTE_UNUSED)
 {
-        restore_state_and_exit(0);
+        restore_state_and_exit(EXIT_SUCCESS);
 }
 
 int slattach_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -239,5 +239,5 @@ int slattach_main(int argc ATTRIBUTE_UNUSED, char **argv)
                 system(extcmd);
 
         /* Restore states and exit */
-        restore_state_and_exit(0);
+        restore_state_and_exit(EXIT_SUCCESS);
 }
diff --git a/networking/telnet.c b/networking/telnet.c
index 32e9993d3..b357e690c 100644
--- a/networking/telnet.c
+++ b/networking/telnet.c
@@ -122,7 +122,7 @@ static void conescape(void)
                         " e     exit telnet\r\n");
 
         if (read(0, &b, 1) <= 0)
-                doexit(1);
+                doexit(EXIT_FAILURE);
 
         switch (b) {
         case 'l':
@@ -143,7 +143,7 @@ static void conescape(void)
                 rawmode();
                 break;
         case 'e':
-                doexit(0);
+                doexit(EXIT_SUCCESS);
         }
 
         write_str(1, "continuing...\r\n");
@@ -634,7 +634,7 @@ int telnet_main(int argc, char **argv)
                         {
                                 len = read(0, G.buf, DATABUFSIZE);
                                 if (len <= 0)
-                                        doexit(0);
+                                        doexit(EXIT_SUCCESS);
                                 TRACE(0, ("Read con: %d\n", len));
                                 handlenetoutput(len);
                         }
@@ -648,7 +648,7 @@ int telnet_main(int argc, char **argv)
                                 len = read(G.netfd, G.buf, DATABUFSIZE);
                                 if (len <= 0) {
                                         write_str(1, "Connection closed by foreign host\r\n");
-                                        doexit(1);
+                                        doexit(EXIT_FAILURE);
                                 }
                                 TRACE(0, ("Read netfd (%d): %d\n", G.netfd, len));
                                 handlenetinput(len);
diff --git a/networking/telnetd.c b/networking/telnetd.c
index e312c0b41..3660d788f 100644
--- a/networking/telnetd.c
+++ b/networking/telnetd.c
@@ -262,7 +262,7 @@ make_new_session(
         BB_EXECVP(loginpath, (char **)login_argv);
         /* _exit is safer with vfork, and we shouldn't send message
          * to remote clients anyway */
-        _exit(1); /*bb_perror_msg_and_die("execv %s", loginpath);*/
+        _exit(EXIT_FAILURE); /*bb_perror_msg_and_die("execv %s", loginpath);*/
 }
 
 /* Must match getopt32 string */
@@ -281,7 +281,7 @@ free_session(struct tsession *ts)
         struct tsession *t = sessions;
 
         if (option_mask32 & OPT_INETD)
-                exit(0);
+                exit(EXIT_SUCCESS);
 
         /* Unlink this telnet session from the session list */
         if (t == ts)
@@ -325,7 +325,7 @@ free_session(struct tsession *ts)
 
 #else /* !FEATURE_TELNETD_STANDALONE */
 
-/* Used in main() only, thus "return 0" actually is exit(0). */
+/* Used in main() only, thus "return 0" actually is exit(EXIT_SUCCESS). */
 #define free_session(ts) return 0
 
 #endif
diff --git a/procps/top.c b/procps/top.c
index ed74879d1..de30ffb28 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -523,7 +523,7 @@ static void reset_term(void)
 static void sig_catcher(int sig ATTRIBUTE_UNUSED)
 {
         reset_term();
-        exit(1);
+        exit(EXIT_FAILURE);
 }
 #endif /* FEATURE_USE_TERMIOS */
 
diff --git a/runit/runsv.c b/runit/runsv.c
index 2ab034af6..e3b507d25 100644
--- a/runit/runsv.c
+++ b/runit/runsv.c
@@ -640,7 +640,7 @@ int runsv_main(int argc ATTRIBUTE_UNUSED, char **argv)
 
                 if (svd[0].want == W_EXIT && svd[0].state == S_DOWN) {
                         if (svd[1].pid == 0)
-                                _exit(0);
+                                _exit(EXIT_SUCCESS);
                         if (svd[1].want != W_EXIT) {
                                 svd[1].want = W_EXIT;
                                 /* stopservice(&svd[1]); */
diff --git a/runit/runsvdir.c b/runit/runsvdir.c
index 32e4764d1..b4450c00c 100644
--- a/runit/runsvdir.c
+++ b/runit/runsvdir.c
@@ -343,7 +343,7 @@ int runsvdir_main(int argc ATTRIBUTE_UNUSED, char **argv)
 
                 switch (exitsoon) {
                 case 1:
-                        _exit(0);
+                        _exit(EXIT_SUCCESS);
                 case 2:
                         for (i = 0; i < svnum; i++)
                                 if (sv[i].pid)
diff --git a/selinux/setfiles.c b/selinux/setfiles.c
index 02bb9113f..82e9e5348 100644
--- a/selinux/setfiles.c
+++ b/selinux/setfiles.c
@@ -612,7 +612,7 @@ int setfiles_main(int argc, char **argv)
                 optind++;
 
                 if (nerr)
-                        exit(1);
+                        exit(EXIT_FAILURE);
         }
 
         if (input_filename) {
diff --git a/shell/ash.c b/shell/ash.c
index b45229ba5..fa063bf20 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -4789,7 +4789,7 @@ openhere(union node *redir)
                         full_write(pip[1], redir->nhere.doc->narg.text, len);
                 else
                         expandhere(redir->nhere.doc, pip[1]);
-                _exit(0);
+                _exit(EXIT_SUCCESS);
         }
  out:
         close(pip[1]);
diff --git a/shell/ash_test/printenv.c b/shell/ash_test/printenv.c
index 06df21fdc..c4ccda8a6 100644
--- a/shell/ash_test/printenv.c
+++ b/shell/ash_test/printenv.c
@@ -45,7 +45,7 @@ main (argc, argv)
     {
       for (envp = environ; *envp; envp++)
         puts (*envp);
-      exit (0);
+      exit(EXIT_SUCCESS);
     }
 
   /* printenv varname */
@@ -59,9 +59,9 @@ main (argc, argv)
           if (*eval == '=')
             {
               puts (eval + 1);
-              exit (0);
+              exit(EXIT_SUCCESS);
             }
         }
     }
-  exit (1);
+  exit(EXIT_FAILURE);
 }
diff --git a/shell/ash_test/recho.c b/shell/ash_test/recho.c
index 02be0d760..fb48d9c48 100644
--- a/shell/ash_test/recho.c
+++ b/shell/ash_test/recho.c
@@ -41,7 +41,7 @@ char	**argv;
                 strprint(argv[i]);
                 printf(">\n");
         }
-        exit(0);
+        exit(EXIT_SUCCESS);
 }
 
 void
diff --git a/shell/ash_test/zecho.c b/shell/ash_test/zecho.c
index 621d06d28..bf876f641 100644
--- a/shell/ash_test/zecho.c
+++ b/shell/ash_test/zecho.c
@@ -35,5 +35,5 @@ char	**argv;
         }
 
         putchar('\n');
-        exit(0);
+        exit(EXIT_SUCCESS);
 }
diff --git a/shell/bbsh.c b/shell/bbsh.c
index 02e60508f..5386bb097 100644
--- a/shell/bbsh.c
+++ b/shell/bbsh.c
@@ -168,7 +168,7 @@ static int run_pipeline(struct pipeline *line)
                         run_applet_and_exit(cmd->argv[0],cmd->argc,cmd->argv);
                         execvp(cmd->argv[0],cmd->argv);
                         printf("No %s",cmd->argv[0]);
-                        exit(1);
+                        exit(EXIT_FAILURE);
                 } else waitpid(pid, &status, 0);
         }
 
diff --git a/shell/hush.c b/shell/hush.c
index aa740f1b4..26d113b17 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -1480,7 +1480,7 @@ static void pseudo_exec_argv(char **argv)
         debug_printf_exec("execing '%s'\n", argv[0]);
         execvp(argv[0], argv);
         bb_perror_msg("cannot exec '%s'", argv[0]);
-        _exit(1);
+        _exit(EXIT_FAILURE);
 }
 
 /* Called after [v]fork() in run_pipe()
diff --git a/shell/msh.c b/shell/msh.c
index aa6fb1d26..48fa56eb7 100644
--- a/shell/msh.c
+++ b/shell/msh.c
@@ -2855,7 +2855,7 @@ static int forkexec(struct op *t, int *pin, int *pout, int no_fork, char **wp)
         if (t->op_type == TPAREN)
                 _exit(execute(t->left, NOPIPE, NOPIPE, /* no_fork: */ 1));
         if (wp[0] == NULL)
-                _exit(0);
+                _exit(EXIT_SUCCESS);
 
         cp = rexecve(wp[0], wp, makenv(0, NULL));
         prs(wp[0]);
@@ -4207,7 +4207,7 @@ static int grave(int quoted)
         prs(argument_list[0]);
         prs(": ");
         err(cp);
-        _exit(1);
+        _exit(EXIT_FAILURE);
 }
 
 
@@ -4733,7 +4733,7 @@ static int filechar(struct ioarg *ap)
                 while (size == 0 || position >= size) {
                         size = read_line_input(current_prompt, filechar_cmdbuf, BUFSIZ, line_input_state);
                         if (size < 0) /* Error/EOF */
-                                exit(0);
+                                exit(EXIT_SUCCESS);
                         position = 0;
                         /* if Ctrl-C, size == 0 and loop will repeat */
                 }
@@ -5212,7 +5212,7 @@ int msh_main(int argc, char **argv)
 
                         name = *++argv;
                         if (newfile(name))
-                                exit(1);                /* Exit on error */
+                                exit(EXIT_FAILURE);             /* Exit on error */
                 }
         }
 
diff --git a/sysklogd/logread.c b/sysklogd/logread.c
index af93aab6e..7eb8db176 100644
--- a/sysklogd/logread.c
+++ b/sysklogd/logread.c
@@ -64,7 +64,7 @@ static void interrupted(int sig ATTRIBUTE_UNUSED)
 {
         signal(SIGINT, SIG_IGN);
         shmdt(shbuf);
-        exit(0);
+        exit(EXIT_SUCCESS);
 }
 
 int logread_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
diff --git a/util-linux/fdisk.c b/util-linux/fdisk.c
index 50ab48dab..5871a065a 100644
--- a/util-linux/fdisk.c
+++ b/util-linux/fdisk.c
@@ -394,7 +394,7 @@ read_line(const char *prompt)
 
         sz = read_line_input(prompt, line_buffer, sizeof(line_buffer), NULL);
         if (sz <= 0)
-                exit(0); /* Ctrl-D or Ctrl-C */
+                exit(EXIT_SUCCESS); /* Ctrl-D or Ctrl-C */
 
         if (line_buffer[sz-1] == '\n')
                 line_buffer[--sz] = '\0';
@@ -2620,7 +2620,7 @@ xselect(void)
                         if (ENABLE_FEATURE_CLEAN_UP)
                                 close_dev_fd();
                         bb_putchar('\n');
-                        exit(0);
+                        exit(EXIT_SUCCESS);
                 case 'r':
                         return;
                 case 's':
diff --git a/util-linux/ipcrm.c b/util-linux/ipcrm.c
index 8d5f63c0f..5dcda859a 100644
--- a/util-linux/ipcrm.c
+++ b/util-linux/ipcrm.c
@@ -111,7 +111,7 @@ int ipcrm_main(int argc, char **argv)
                                 what = SEM;
 
                         if (remove_ids(what, argc-2, &argv[2]))
-                                fflush_stdout_and_exit(1);
+                                fflush_stdout_and_exit(EXIT_FAILURE);
                         printf("resource(s) deleted\n");
                         return 0;
                 }
diff --git a/util-linux/ipcs.c b/util-linux/ipcs.c
index 4b5c597e5..111defa1e 100644
--- a/util-linux/ipcs.c
+++ b/util-linux/ipcs.c
@@ -588,15 +588,15 @@ int ipcs_main(int argc ATTRIBUTE_UNUSED, char **argv)
         if (flags & flag_print) {
                 if (flags & flag_shm) {
                         print_shm(id);
-                        fflush_stdout_and_exit(0);
+                        fflush_stdout_and_exit(EXIT_SUCCESS);
                 }
                 if (flags & flag_sem) {
                         print_sem(id);
-                        fflush_stdout_and_exit(0);
+                        fflush_stdout_and_exit(EXIT_SUCCESS);
                 }
                 if (flags & flag_msg) {
                         print_msg(id);
-                        fflush_stdout_and_exit(0);
+                        fflush_stdout_and_exit(EXIT_SUCCESS);
                 }
                 bb_show_usage();
         }
@@ -617,5 +617,5 @@ int ipcs_main(int argc ATTRIBUTE_UNUSED, char **argv)
                 do_msg();
                 bb_putchar('\n');
         }
-        fflush_stdout_and_exit(0);
+        fflush_stdout_and_exit(EXIT_SUCCESS);
 }