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-rw-r--r--inittab.c70
-rw-r--r--utils/askfirst.c28
2 files changed, 47 insertions, 51 deletions
diff --git a/inittab.c b/inittab.c
index 0d62708..2d9a1e0 100644
--- a/inittab.c
+++ b/inittab.c
@@ -64,48 +64,10 @@ static char *ask = "/sbin/askfirst";
static LIST_HEAD(actions);
-static int dev_open(const char *dev)
-{
- int fd = -1;
-
- if (dev) {
- chdir("/dev");
- fd = open( dev, O_RDWR);
- chdir("/");
- }
-
- return fd;
-}
-
-static int dev_exist(const char *dev)
-{
- int res;
-
- res = dev_open(dev);
- if (res != -1) {
- close(res);
- }
-
- return (res != -1);
-}
-
static void fork_worker(struct init_action *a)
{
- int fd;
- pid_t p;
-
a->proc.pid = fork();
if (!a->proc.pid) {
- p = setsid( );
- fd = dev_open(a->id);
- if (fd != -1)
- {
- dup2(fd, STDIN_FILENO);
- dup2(fd, STDOUT_FILENO);
- dup2(fd, STDERR_FILENO);
- tcsetpgrp(fd, p);
- close(fd);
- }
execvp(a->argv[0], a->argv);
ERROR("Failed to execute %s\n", a->argv[0]);
exit(-1);
@@ -149,17 +111,22 @@ static void runrc(struct init_action *a)
static void askfirst(struct init_action *a)
{
+ struct stat s;
int i;
- if (!dev_exist(a->id) || (console && !strcmp(console, a->id))) {
+ chdir("/dev");
+ i = stat(a->id, &s);
+ chdir("/");
+ if (i || (console && !strcmp(console, a->id))) {
DEBUG(4, "Skipping %s\n", a->id);
return;
}
a->tout.cb = respawn;
- for (i = MAX_ARGS - 1; i >= 1; i--)
- a->argv[i] = a->argv[i - 1];
+ for (i = MAX_ARGS - 2; i >= 2; i--)
+ a->argv[i] = a->argv[i - 2];
a->argv[0] = ask;
+ a->argv[1] = a->id;
a->respawn = 500;
a->proc.cb = child_exit;
@@ -168,24 +135,29 @@ static void askfirst(struct init_action *a)
static void askconsole(struct init_action *a)
{
+ struct stat s;
char line[256], *tty, *split;
int i;
tty = get_cmdline_val("console", line, sizeof(line));
- split = strchr(tty, ',');
- if (split)
- *split = '\0';
-
- if (!dev_exist(tty)) {
+ split=strchr(tty, ',');
+ if (split != NULL)
+ split = '\0';
+
+ chdir("/dev");
+ i = stat(tty, &s);
+ chdir("/");
+ if (i) {
DEBUG(4, "skipping %s\n", tty);
return;
}
+ console = strdup(tty);
a->tout.cb = respawn;
- for (i = MAX_ARGS - 1; i >= 1; i--)
- a->argv[i] = a->argv[i - 1];
- a->id = strdup(tty);
+ for (i = MAX_ARGS - 2; i >= 2; i--)
+ a->argv[i] = a->argv[i - 2];
a->argv[0] = ask;
+ a->argv[1] = strdup(tty);
a->respawn = 500;
a->proc.cb = child_exit;
diff --git a/utils/askfirst.c b/utils/askfirst.c
index e1f757a..6ad77aa 100644
--- a/utils/askfirst.c
+++ b/utils/askfirst.c
@@ -19,10 +19,34 @@
#include <unistd.h>
#include <fcntl.h>
+static int redirect_output(const char *dev)
+{
+ pid_t p = setsid();
+ int fd;
+
+ chdir("/dev");
+ fd = open(dev, O_RDWR);
+ chdir("/");
+
+ if (fd < 0)
+ return -1;
+
+ dup2(fd, STDIN_FILENO);
+ dup2(fd, STDOUT_FILENO);
+ dup2(fd, STDERR_FILENO);
+ tcsetpgrp(fd, p);
+ close(fd);
+
+ return 0;
+}
+
int main(int argc, char **argv)
{
int c;
+ if (redirect_output(argv[1]))
+ fprintf(stderr, "%s: Failed to open %s\n", argv[0], argv[1]);
+
printf("Please press Enter to activate this console.\n");
do {
c = getchar();
@@ -31,8 +55,8 @@ int main(int argc, char **argv)
}
while (c != 0xA);
- execvp(argv[1], &argv[1]);
- printf("%s: Failed to execute %s\n", argv[0], argv[1]);
+ execvp(argv[2], &argv[2]);
+ printf("%s: Failed to execute %s\n", argv[0], argv[2]);
return -1;
}