coreutils

commit aeaa7220e510c0204425fa15e010c9d666673a6a
parent 5d466fab83d16dcff3dc41e59e34df4a92a74646
Author: evenfri <evenfri@4plt.ch>
Date:   Mon, 26 Oct 2026 22:58:48 +0800

PATCH: set defines to upper case. FEAT: while 1 for shell proc

Diffstat:
M
init.c
 | 
51
++++++++++++++++++++++++++++-----------------------

1 file changed, 28 insertions(+), 23 deletions(-)
diff --git a/init.c b/init.c
@@ -1,40 +1,45 @@
 #include <libc.h>
 
-#define msg_clear "\033[2J\033[H"
-
-#define msg_welcome "[init] starting...\n"
-#define msg_proc "[init] mouting /proc...\n"
-#define msg_sys "[init] mouting /sys...\n"
-#define msg_dev "[init] mouting /dev...\n"
+#define MSG_CLEAR "\033[2J\033[H"
+#define MSG_WELCOME "[init] starting...\n"
+#define MSG_PROC "[init] mouting /proc...\n"
+#define MSG_SYS "[init] mouting /sys...\n"
+#define MSG_DEV "[init] mouting /dev...\n"
 
 int main(void) {
-  write(stdout, msg_clear, strlen(msg_clear));
+  write(stdout, MSG_CLEAR, strlen(MSG_CLEAR));
 
-  write(stdout, msg_welcome, strlen(msg_welcome));
+  write(stdout, MSG_WELCOME, strlen(MSG_WELCOME));
 
-  write(stdout, msg_proc, strlen(msg_proc));
+  write(stdout, MSG_PROC, strlen(MSG_PROC));
   mount("proc", "/proc", "proc", 0, NULL);
 
-  write(stdout, msg_sys, strlen(msg_sys));
+  write(stdout, MSG_SYS, strlen(MSG_SYS));
   mount("sysfs", "/sys", "sysfs", 0, NULL);
 
-  write(stdout, msg_dev, strlen(msg_dev));
+  write(stdout, MSG_DEV, strlen(MSG_DEV));
   mount("devtmpfs", "/dev", "devtmpfs", 0, NULL);
 
-  int pid = fork();
-  if (pid == 0) {
-    char *argv[] = { "/bin/sh", NULL };
-    char *envp[] = { "PATH=/bin:/sbin", NULL };
-
-    execve("/bin/sh", argv, envp);
-
-    write(stderr, "[init] Failed to exec /bin/sh!\n", 31);
-    exit(1);
-  }
-
   while (1) {
+    int pid = fork();
+    if (pid < 0) {
+      sleep(1);
+      continue;
+    }
+
+    if (pid == 0) {
+      char *argv[] = { "/bin/sh", NULL };
+      char *envp[] = { "PATH=/bin:/sbin", NULL };
+
+      execve("/bin/sh", argv, envp);
+      const char msg[] = "[init] Failed to exec /bin/sh!\n";
+      write(stderr, msg, sizeof(msg) - 1);
+      _exit(1);
+    }
+
     int status;
-    waitpid(-1, &status, 0);
+    waitpid(pid, &status, 0);
   }
+
   return 0;
 }