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authorDavid Oberhollenzer <goliath@infraroot.at>2020-04-06 18:27:48 +0200
committerDavid Oberhollenzer <goliath@infraroot.at>2020-04-24 12:09:18 +0200
commit5f282897317df38bbd96ba567f3a4f1d2f259039 (patch)
tree2838f323c0e3ed96aec81aecc89942dbede5e977 /cmd
parent0975ed0fb7773881d8f2ffccf3de33f433273b24 (diff)
cleanup: merge runsvc back into initd
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/Makemodule.am8
-rw-r--r--cmd/runsvc.c195
2 files changed, 1 insertions, 202 deletions
diff --git a/cmd/Makemodule.am b/cmd/Makemodule.am
index 4011b6c..7b8296f 100644
--- a/cmd/Makemodule.am
+++ b/cmd/Makemodule.am
@@ -3,12 +3,6 @@ shutdown_CPPFLAGS = $(AM_CPPFLAGS)
shutdown_CFLAGS = $(AM_CFLAGS)
shutdown_LDFLAGS = $(AM_LDFLAGS)
-runsvc_SOURCES = cmd/runsvc.c
-runsvc_CPPFLAGS = $(AM_CPPFLAGS)
-runsvc_CFLAGS = $(AM_CFLAGS)
-runsvc_LDFLAGS = $(AM_LDFLAGS)
-runsvc_LDADD = libinit.a libcfg.a
-
killall5_SOURCES = cmd/killall5.c
killall5_CPPFLAGS = $(AM_CPPFLAGS)
killall5_CFLAGS = $(AM_CFLAGS)
@@ -37,4 +31,4 @@ dist_man8_MANS += cmd/shutdown.8 cmd/service/service.8
EXTRA_DIST += $(SRVHEADERS)
sbin_PROGRAMS += service shutdown
-helper_PROGRAMS += killall5 runsvc waitfile
+helper_PROGRAMS += killall5 waitfile
diff --git a/cmd/runsvc.c b/cmd/runsvc.c
deleted file mode 100644
index ab07b4a..0000000
--- a/cmd/runsvc.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/* SPDX-License-Identifier: ISC */
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <dirent.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <ctype.h>
-
-#include "service.h"
-#include "libcfg.h"
-#include "config.h"
-
-#define ENVFILE ETCPATH "/initd.env"
-#define PROCFDDIR "/proc/self/fd"
-
-static int setup_env(void)
-{
- int status = -1;
- ssize_t ret;
- FILE *fp;
-
- clearenv();
-
- fp = fopen(ENVFILE, "r");
- if (fp == NULL) {
- perror(ENVFILE);
- return -1;
- }
-
- do {
- char *line = NULL;
- size_t n = 0;
-
- errno = 0;
- ret = getline(&line, &n, fp);
-
- if (ret < 0) {
- if (errno == 0) {
- status = 0;
- } else {
- perror(ENVFILE);
- }
- } else if (ret > 0 && putenv(line) != 0) {
- perror("putenv");
- ret = -1;
- }
-
- free(line);
- } while (ret >= 0);
-
- fclose(fp);
- return status;
-}
-
-static int close_all_files(void)
-{
- struct dirent *ent;
- DIR *dir;
- int fd;
-
- dir = opendir(PROCFDDIR);
- if (dir == NULL) {
- perror(PROCFDDIR);
- return -1;
- }
-
- while ((ent = readdir(dir)) != NULL) {
- if (!isdigit(ent->d_name[0]))
- continue;
-
- fd = atoi(ent->d_name);
- close(fd);
- }
-
- closedir(dir);
- return 0;
-}
-
-static int setup_tty(const char *tty, bool truncate)
-{
- int fd;
-
- if (tty == NULL)
- return 0;
-
- fd = open(tty, O_RDWR);
- if (fd < 0) {
- perror(tty);
- return -1;
- }
-
- if (truncate)
- ftruncate(fd, 0);
-
- setsid();
-
- dup2(fd, STDIN_FILENO);
- dup2(fd, STDOUT_FILENO);
- dup2(fd, STDERR_FILENO);
- close(fd);
- return 0;
-}
-
-static __attribute__((noreturn)) void argv_exec(exec_t *e)
-{
- char **argv = alloca(sizeof(char *) * (e->argc + 1)), *ptr;
- int i;
-
- for (ptr = e->args, i = 0; i < e->argc; ++i, ptr += strlen(ptr) + 1)
- argv[i] = ptr;
-
- argv[i] = NULL;
- execvp(argv[0], argv);
- perror(argv[0]);
- exit(EXIT_FAILURE);
-}
-
-static int run_sequentially(exec_t *list)
-{
- pid_t ret, pid;
- int status;
-
- for (; list != NULL; list = list->next) {
- if (list->next == NULL)
- argv_exec(list);
-
- pid = fork();
-
- if (pid == 0)
- argv_exec(list);
-
- if (pid == -1) {
- perror("fork");
- return EXIT_FAILURE;
- }
-
- do {
- ret = waitpid(pid, &status, 0);
- } while (ret != pid);
-
- if (!WIFEXITED(status))
- return EXIT_FAILURE;
-
- if (WEXITSTATUS(status) != EXIT_SUCCESS)
- return WEXITSTATUS(status);
- }
-
- return EXIT_SUCCESS;
-}
-
-/*****************************************************************************/
-
-int main(int argc, char **argv)
-{
- service_t *svc = NULL;
- int dirfd;
-
- if (argc != 3) {
- fputs("usage: runsvc <directory> <filename>\n", stderr);
- return EXIT_FAILURE;
- }
-
- if (getppid() != 1) {
- fputs("must be run by init!\n", stderr);
- return EXIT_FAILURE;
- }
-
- dirfd = open(argv[1], O_RDONLY | O_DIRECTORY);
- if (dirfd < 0) {
- perror(argv[1]);
- return EXIT_FAILURE;
- }
-
- svc = rdsvc(dirfd, argv[2], RDSVC_NO_FNAME | RDSVC_NO_DEPS);
- close(dirfd);
- if (svc == NULL)
- return EXIT_FAILURE;
-
- if (setup_env())
- return EXIT_FAILURE;
-
- if (close_all_files())
- return EXIT_FAILURE;
-
- if (setup_tty(svc->ctty, (svc->flags & SVC_FLAG_TRUNCATE_OUT) != 0))
- return EXIT_FAILURE;
-
- return run_sequentially(svc->exec);
-}