ArchLinux: fixed compiler warnings (libc functions marked with

warn_unused_result)

Signed-off-by: lns <matzeton@googlemail.com>

3 files changed, 16 insertions, 8 deletions

diff --git a/src/jail.c b/src/jail.c
index 5b3ed5c..627e650 100644
--- a/src/jail.c
+++ b/src/jail.c
@@ -444,7 +444,8 @@ static int jail_childfn(prisoner_process *ctx)
             caps_drop_all();
 #endif
 
-            sethostname("openwrt", SIZEOF("openwrt"));
+            if (sethostname("openwrt", SIZEOF("openwrt")))
+                exit(EXIT_FAILURE);
             if (execl(path_shell, path_shell, (char *) NULL))
                 exit(EXIT_FAILURE);
             break;
diff --git a/src/protocol_ssh.c b/src/protocol_ssh.c
index ec2664c..9ad5110 100644
--- a/src/protocol_ssh.c
+++ b/src/protocol_ssh.c
@@ -329,8 +329,10 @@ static int gen_default_keys(void)
     }
     if (chmod(path, S_IRUSR))
         return 1;
-    if (pwd)
-        chown(path, pwd->pw_uid, pwd->pw_gid);
+    if (pwd) {
+        if (chown(path, pwd->pw_uid, pwd->pw_gid))
+            return 1;
+    }
 
     snprintf(path, sizeof path, "%s/%s", getopt_str(OPT_SSH_RUN_DIR),
         dsa_key_suf);
@@ -345,8 +347,10 @@ static int gen_default_keys(void)
     }
     if (chmod(path, S_IRUSR))
         return 1;
-    if (pwd)
-        chown(path, pwd->pw_uid, pwd->pw_gid);
+    if (pwd) {
+        if (chown(path, pwd->pw_uid, pwd->pw_gid))
+            return 1;
+    }
 
     snprintf(path, sizeof path, "%s/%s", getopt_str(OPT_SSH_RUN_DIR),
         ecdsa_key_suf);
@@ -361,8 +365,10 @@ static int gen_default_keys(void)
     }
     if (chmod(path, S_IRUSR))
         return 1;
-    if (pwd)
-        chown(path, pwd->pw_uid, pwd->pw_gid);
+    if (pwd) {
+        if (chown(path, pwd->pw_uid, pwd->pw_gid))
+            return 1;
+    }
 
     return s != 0;
 }
diff --git a/src/utils.c b/src/utils.c
index 0979622..3cf88d5 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -297,7 +297,8 @@ pid_t daemonize(int stay_foreground)
     if (!stay_foreground) {
         /* Change the working directory to the root directory */
         /* or another appropriated directory */
-        chdir("/");
+        if (chdir("/"))
+            return -1;
         /* Close all open file descriptors */
         assert( close_fds_except(-1) == 0 );
         assert( redirect_devnull_to(0, 1, 2, -1) == 0 );