Use mu_getpwuid() instead of getpwuid().

@@ -27,7 +27,7 @@ imap4d_bye (int reason)
 int
 imap4d_bye0 (int reason, struct imap4d_command *command)
 {
-  struct passwd *pw = getpwuid (getuid ());
+  struct passwd *pw = mu_getpwuid (getuid ());
   const char *username;
   int status = EXIT_FAILURE;
   username = (pw) ? pw->pw_name : "Unknown";

@@ -75,7 +75,7 @@ imap4d_copy0 (char *arg, int isuid, char *resp, size_t resplen)
 
   if (strcasecmp (name, "INBOX") == 0 && !mu_virtual_domain)
     {
-      struct passwd *pw = getpwuid (getuid());
+      struct passwd *pw = mu_getpwuid (getuid());
       mailbox_name = strdup ((pw) ? pw->pw_name : "");
     }
   else

@@ -89,7 +89,7 @@ imap4d_rename (struct imap4d_command *command, char *arg)
 	}
       free (name);
       free (newname);
-      pw = getpwuid (getuid ());
+      pw = mu_getpwuid (getuid ());
       if (pw)
 	{
 	  mailbox_t inbox = NULL;

@@ -59,7 +59,7 @@ imap4d_select0 (struct imap4d_command *command, char *arg, int flags)
 
   if (strcasecmp (mailbox_name, "INBOX") == 0 && !mu_virtual_domain)
     {
-      pw = getpwuid (getuid ());
+      pw = mu_getpwuid (getuid ());
       if (pw)
 	{
 	  mailbox_name = malloc (strlen (maildir) + strlen (pw->pw_name) + 1);

@@ -47,7 +47,7 @@ imap4d_status (struct imap4d_command *command, char *arg)
 
   if (strcasecmp (name, "INBOX") == 0 && !mu_virtual_domain)
     {
-      struct passwd *pw = getpwuid (getuid());
+      struct passwd *pw = mu_getpwuid (getuid());
       mailbox_name = strdup ((pw) ? pw->pw_name : "");
     }
   else

@@ -86,12 +86,12 @@ get_homedir (const char *user)
       homedir = getenv ("HOME");
       if (homedir == NULL)
 	{
-	  pw = getpwuid (getuid ());
+	  pw = mu_getpwuid (getuid ());
 	  if (pw)
 	    homedir = pw->pw_dir;
 	}
 #else
-      pw = getpwuid (getuid ());
+      pw = mu_getpwuid (getuid ());
       if (pw)
 	homedir = pw->pw_dir;
 #endif
@@ -283,7 +283,7 @@ mailbox_create_default (mailbox_t *pmbox, const char *mail)
       if (user == NULL)
 	{
 	  struct passwd *pw;
-	  pw = getpwuid (getuid ());
+	  pw = mu_getpwuid (getuid ());
 	  if (pw)
 	    user = pw->pw_name;
 	  else

@@ -925,7 +925,7 @@ message_sender (envelope_t envelope, char *buf, size_t len, size_t *pnwrite)
   {
     struct passwd *pw;
     const char *sender;
-    pw = getpwuid (getuid ());
+    pw = mu_getpwuid (getuid ());
     sender = (pw) ? pw->pw_name : "unknown";
     n = strlen (sender);
     if (buf && len > 0)

@@ -621,7 +621,7 @@ get_from (message_t msg, char *localhost, address_t *pmail_from)
   /* If it's not in the header create one form the passwd.  */
   if (status != 0 || size == 0)
     {
-      struct passwd *pwd = getpwuid (getuid ());
+      struct passwd *pwd = mu_getpwuid (getuid ());
       /* Not in the passwd ???? We have a problem.  */
       if (pwd == 0 || pwd->pw_name == NULL)
 	{

@@ -397,7 +397,7 @@ get_user (url_t url, const char *filename, char **user)
     }
   else
     {
-      struct passwd *pw = getpwuid (getuid ());
+      struct passwd *pw = mu_getpwuid (getuid ());
       if (pw && pw->pw_name)
 	{
 	  u = strdup (pw->pw_name);

@@ -254,7 +254,7 @@ mu_get_homedir (void)
     {
       struct passwd *pwd;
 
-      pwd = getpwuid (getuid ());
+      pwd = mu_getpwuid (getuid ());
       if (!pwd)
 	return NULL;
       homedir = pwd->pw_dir;