mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-11-27 21:50:32 +00:00
Formatting
This commit is contained in:
Glenn L McGrath
parent
aac2a19e50
commit
82d42dbb57
@ -830,160 +830,164 @@ extern int inetd_main(int argc, char *argv[])
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}
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for (;;) {
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int n, ctrl;
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fd_set readable;
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fd_set readable;
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int ctrl;
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int n;
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if (nsock == 0) {
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sigprocmask(SIG_BLOCK, &blockmask, NULL);
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while (nsock == 0)
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sigsuspend(&emptymask);
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sigprocmask(SIG_SETMASK, &emptymask, NULL);
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}
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readable = allsock;
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if ((n = select(maxsock + 1, &readable, (fd_set *)0,
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(fd_set *)0, (struct timeval *)0)) <= 0) {
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if (n < 0 && errno != EINTR)
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syslog(LOG_WARNING, "select: %m");
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sleep(1);
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continue;
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}
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for (sep = servtab; n && sep; sep = sep->se_next)
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if (sep->se_fd != -1 && FD_ISSET(sep->se_fd, &readable)) {
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n--;
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if (!sep->se_wait && sep->se_socktype == SOCK_STREAM) {
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/* Fixed AGC */
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fcntl(sep->se_fd, F_SETFL, O_NDELAY);
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/* --------- */
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ctrl = accept(sep->se_fd, NULL, NULL);
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fcntl(sep->se_fd, F_SETFL, 0);
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if (ctrl < 0) {
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if (errno == EINTR || errno == EWOULDBLOCK)
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continue;
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syslog(LOG_WARNING, "accept (for %s): %m",
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sep->se_service);
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continue;
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if (nsock == 0) {
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sigprocmask(SIG_BLOCK, &blockmask, NULL);
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while (nsock == 0) {
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sigsuspend(&emptymask);
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}
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} else
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ctrl = sep->se_fd;
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sigprocmask(SIG_BLOCK, &blockmask, NULL);
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pid = 0;
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#ifdef INETD_FEATURE_ENABLED
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if (sep->se_bi == 0 || sep->se_bi->bi_fork)
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#endif
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{
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if (sep->se_count++ == 0)
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(void)gettimeofday(&sep->se_time, (struct timezone *)0);
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else if (sep->se_count >= sep->se_max) {
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struct timeval now;
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(void)gettimeofday(&now, (struct timezone *)0);
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if (now.tv_sec - sep->se_time.tv_sec >
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CNT_INTVL) {
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sep->se_time = now;
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sep->se_count = 1;
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} else {
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syslog(LOG_ERR,
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"%s/%s server failing (looping), service terminated",
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sep->se_service, sep->se_proto);
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FD_CLR(sep->se_fd, &allsock);
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(void) close(sep->se_fd);
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sep->se_fd = -1;
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sep->se_count = 0;
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nsock--;
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sigprocmask(SIG_SETMASK, &emptymask,
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NULL);
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if (!timingout) {
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timingout = 1;
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alarm(RETRYTIME);
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sigprocmask(SIG_SETMASK, &emptymask, NULL);
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}
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readable = allsock;
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n = select(maxsock + 1, &readable, (fd_set *)0, (fd_set *)0, (struct timeval *)0);
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if (n <= 0) {
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if (n < 0 && errno != EINTR) {
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syslog(LOG_WARNING, "select: %m");
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}
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sleep(1);
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continue;
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}
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for (sep = servtab; n && sep; sep = sep->se_next) {
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if (sep->se_fd != -1 && FD_ISSET(sep->se_fd, &readable)) {
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n--;
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if (!sep->se_wait && sep->se_socktype == SOCK_STREAM) {
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/* Fixed AGC */
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fcntl(sep->se_fd, F_SETFL, O_NDELAY);
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/* --------- */
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ctrl = accept(sep->se_fd, NULL, NULL);
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fcntl(sep->se_fd, F_SETFL, 0);
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if (ctrl < 0) {
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if (errno == EINTR || errno == EWOULDBLOCK) {
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continue;
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}
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syslog(LOG_WARNING, "accept (for %s): %m",
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sep->se_service);
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continue;
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}
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continue;
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} else {
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ctrl = sep->se_fd;
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}
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}
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pid = fork();
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if (pid < 0) {
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syslog(LOG_ERR, "fork: %m");
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if (sep->se_socktype == SOCK_STREAM)
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close(ctrl);
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sigprocmask(SIG_SETMASK, &emptymask, NULL);
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sleep(1);
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continue;
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}
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if (pid && sep->se_wait) {
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sep->se_wait = pid;
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FD_CLR(sep->se_fd, &allsock);
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nsock--;
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}
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}
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sigprocmask(SIG_SETMASK, &emptymask, NULL);
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if (pid == 0) {
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sigprocmask(SIG_BLOCK, &blockmask, NULL);
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pid = 0;
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#ifdef INETD_FEATURE_ENABLED
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if (sep->se_bi)
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(*sep->se_bi->bi_fn)(ctrl, sep);
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else
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if (sep->se_bi == 0 || sep->se_bi->bi_fork)
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#endif
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{
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struct passwd *pwd = getpwnam(sep->se_user);
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if (pwd == NULL) {
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syslog_err_and_discard_dg(
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sep->se_socktype,
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"getpwnam: %s: No such user",
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sep->se_user);
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{
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if (sep->se_count++ == 0) {
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gettimeofday(&sep->se_time, (struct timezone *)0);
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}
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else if (sep->se_count >= sep->se_max) {
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struct timeval now;
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gettimeofday(&now, (struct timezone *)0);
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if (now.tv_sec - sep->se_time.tv_sec > CNT_INTVL) {
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sep->se_time = now;
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sep->se_count = 1;
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} else {
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syslog(LOG_ERR,
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"%s/%s server failing (looping), service terminated",
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sep->se_service, sep->se_proto);
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FD_CLR(sep->se_fd, &allsock);
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close(sep->se_fd);
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sep->se_fd = -1;
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sep->se_count = 0;
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nsock--;
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sigprocmask(SIG_SETMASK, &emptymask, NULL);
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if (!timingout) {
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timingout = 1;
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alarm(RETRYTIME);
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}
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continue;
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}
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}
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pid = fork();
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if (pid < 0) {
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syslog(LOG_ERR, "fork: %m");
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if (sep->se_socktype == SOCK_STREAM) {
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close(ctrl);
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}
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sigprocmask(SIG_SETMASK, &emptymask, NULL);
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sleep(1);
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continue;
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}
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if (pid && sep->se_wait) {
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sep->se_wait = pid;
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FD_CLR(sep->se_fd, &allsock);
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nsock--;
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}
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}
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if (sep->se_group &&
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(grp = getgrnam(sep->se_group)) == NULL) {
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syslog_err_and_discard_dg(
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sep->se_socktype,
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"getgrnam: %s: No such group",
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sep->se_group);
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}
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/*
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* Ok. There are four cases here:
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* 1. nonroot user, no group specified
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* 2. nonroot user, some group specified
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* 3. root user, no group specified
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* 4. root user, some group specified
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* In cases 2 and 4 we setgid to the specified
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* group. In cases 1 and 2 we run initgroups
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* to run with the groups of the given user.
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* In case 4 we do setgroups to run with the
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* given group. In case 3 we do nothing.
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*/
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if (pwd->pw_uid) {
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if (sep->se_group)
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pwd->pw_gid = grp->gr_gid;
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setgid((gid_t)pwd->pw_gid);
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initgroups(pwd->pw_name, pwd->pw_gid);
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setuid((uid_t)pwd->pw_uid);
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} else if (sep->se_group) {
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setgid((gid_t)grp->gr_gid);
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setgroups(1, &grp->gr_gid);
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}
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dup2(ctrl, 0);
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close(ctrl);
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dup2(0, 1);
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dup2(0, 2);
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sigprocmask(SIG_SETMASK, &emptymask, NULL);
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if (pid == 0) {
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#ifdef INETD_FEATURE_ENABLED
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if (sep->se_bi) {
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(*sep->se_bi->bi_fn)(ctrl, sep);
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} else
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#endif
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{
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struct passwd *pwd = getpwnam(sep->se_user);
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if (pwd == NULL) {
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syslog_err_and_discard_dg(
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sep->se_socktype,
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"getpwnam: %s: No such user",
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sep->se_user);
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}
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if (sep->se_group && (grp = getgrnam(sep->se_group)) == NULL) {
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syslog_err_and_discard_dg(sep->se_socktype,
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"getgrnam: %s: No such group", sep->se_group);
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}
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/*
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* Ok. There are four cases here:
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* 1. nonroot user, no group specified
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* 2. nonroot user, some group specified
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* 3. root user, no group specified
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* 4. root user, some group specified
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* In cases 2 and 4 we setgid to the specified
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* group. In cases 1 and 2 we run initgroups
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* to run with the groups of the given user.
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* In case 4 we do setgroups to run with the
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* given group. In case 3 we do nothing.
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*/
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if (pwd->pw_uid) {
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if (sep->se_group) {
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pwd->pw_gid = grp->gr_gid;
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}
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setgid((gid_t)pwd->pw_gid);
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initgroups(pwd->pw_name, pwd->pw_gid);
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setuid((uid_t)pwd->pw_uid);
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} else if (sep->se_group) {
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setgid((gid_t)grp->gr_gid);
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setgroups(1, &grp->gr_gid);
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}
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dup2(ctrl, 0);
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close(ctrl);
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dup2(0, 1);
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dup2(0, 2);
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#ifdef RLIMIT_NOFILE
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if (rlim_ofile.rlim_cur != rlim_ofile_cur) {
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if (setrlimit(RLIMIT_NOFILE,
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&rlim_ofile) < 0)
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syslog(LOG_ERR,"setrlimit: %m");
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}
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if (rlim_ofile.rlim_cur != rlim_ofile_cur) {
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if (setrlimit(RLIMIT_NOFILE, &rlim_ofile) < 0) {
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syslog(LOG_ERR,"setrlimit: %m");
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}
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}
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#endif
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for (ctrl = rlim_ofile_cur-1; --ctrl > 2; )
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(void)close(ctrl);
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for (ctrl = rlim_ofile_cur-1; --ctrl > 2; ) {
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(void)close(ctrl);
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}
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memset(&sa, 0, sizeof(sa));
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sa.sa_handler = SIG_DFL;
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sigaction(SIGPIPE, &sa, NULL);
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memset(&sa, 0, sizeof(sa));
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sa.sa_handler = SIG_DFL;
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sigaction(SIGPIPE, &sa, NULL);
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execv(sep->se_server, sep->se_argv);
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syslog_err_and_discard_dg(sep->se_socktype,
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"execv %s: %m", sep->se_server);
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execv(sep->se_server, sep->se_argv);
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syslog_err_and_discard_dg(sep->se_socktype, "execv %s: %m", sep->se_server);
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}
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}
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if (!sep->se_wait && sep->se_socktype == SOCK_STREAM) {
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close(ctrl);
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}
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}
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}
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if (!sep->se_wait && sep->se_socktype == SOCK_STREAM)
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close(ctrl);
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}
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}
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}
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