From b94fa5bfcfa7ab9bbd8b8020c98e23f6f21d8d13 Mon Sep 17 00:00:00 2001
From: MadMaurice <madmaurice@zom.bi>
Date: Fri, 15 Jan 2021 20:22:22 +0100
Subject: [PATCH] Clean up code style

---
 main.c | 56 +++++++++++++++++++++++++++++++-------------------------
 1 file changed, 31 insertions(+), 25 deletions(-)

diff --git a/main.c b/main.c
index 30480d1..29ceb98 100644
--- a/main.c
+++ b/main.c
@@ -12,7 +12,8 @@
 
 pid_t pid_child;
 
-void drop_root(void) {
+void drop_root(void)
+{
   uid_t uid = getuid();
   // Drop root privileges
   if (setresuid(-1,uid,uid) == -1)
@@ -31,25 +32,27 @@ void drop_root(void) {
     }
 
   // sanity check
-  if(seteuid(0) != -1) {
-    printf("Sanity check failed. I was able to regain root.\n");
-    exit(1);
-  }
+  if (seteuid(0) != -1)
+    {
+      printf("Sanity check failed. I was able to regain root.\n");
+      exit(1);
+    }
 }
 
 void forward_signal(int sig)
 {
-  if(kill(pid_child, sig) == -1) {
-    printf("Unable to forward signal %d to child\n", sig);
-    if(sig == SIGTERM)
-      exit(1);
-  }
+  if (kill(pid_child, sig) == -1)
+    {
+      printf("Unable to forward signal %d to child\n", sig);
+      if (sig == SIGTERM)
+        exit(1);
+    }
 }
 
 char** argdup(int argc, const char** argv)
 {
   char** newargs = malloc(sizeof(char*) * (argc+1));
-  for(size_t i = 0; i < argc; i++)
+  for (size_t i = 0; i < argc; i++)
     {
       newargs[i] = strdup(argv[i]);
     }
@@ -59,11 +62,12 @@ char** argdup(int argc, const char** argv)
 
 int main(int argc, const char** argv)
 {
-  if(argc == 1) {
-    printf("Usage: pidjail PROGRAM ARGUMENTS...\n"
-           "Run command within its own pid namespace. Integrated init process.\n");
-    return 0;
-  }
+  if (argc == 1)
+    {
+      printf("Usage: pidjail PROGRAM ARGUMENTS...\n"
+             "Run command within its own pid namespace. Integrated init process.\n");
+      return 0;
+    }
 
   // next fork shall be in a new pid namespace
   if (unshare(CLONE_NEWPID) != 0)
@@ -90,12 +94,13 @@ int main(int argc, const char** argv)
 
       // Setup signal handler to forward SIGTERM
       pid_child = pid;
-      if(signal(SIGTERM, forward_signal) == SIG_ERR) {
-        printf("Unable to setup signal handler in head\n");
-      }
+      if (signal(SIGTERM, forward_signal) == SIG_ERR)
+        {
+          printf("Unable to setup signal handler in head\n");
+        }
       // parent waits for child then exits
       int status;
-      if(waitpid(pid, &status, 0) == -1)
+      if (waitpid(pid, &status, 0) == -1)
         {
           int err = errno;
           printf("Failed to wait (%d)\n", err);
@@ -122,15 +127,16 @@ int main(int argc, const char** argv)
 
           // Setup forward for SIGTERM
           pid_child = first_child;
-          if(signal(SIGTERM, forward_signal) == SIG_ERR) {
-            printf("Unable to setup signal forward in init. Aborting.\n");
-            return 1;
-          }
+          if (signal(SIGTERM, forward_signal) == SIG_ERR)
+            {
+              printf("Unable to setup signal forward in init. Aborting.\n");
+              return 1;
+            }
 
           do {
             exited_child = wait(&child_status);
             err = errno;
-          } while(exited_child != first_child && exited_child != -1);
+          } while (exited_child != first_child && exited_child != -1);
 
           if (exited_child == -1)
             {