--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qmail-getpw.c	Fri Oct 19 14:06:22 2007 +0200
@@ -0,0 +1,88 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <pwd.h>
+#include "readwrite.h"
+#include "substdio.h"
+#include "subfd.h"
+#include "error.h"
+#include "exit.h"
+#include "byte.h"
+#include "str.h"
+#include "case.h"
+#include "fmt.h"
+#include "auto_usera.h"
+#include "auto_break.h"
+#include "qlx.h"
+
+#define GETPW_USERLEN 32
+
+char *local;
+struct passwd *pw;
+char *dash;
+char *extension;
+
+int userext()
+{
+  char username[GETPW_USERLEN];
+  struct stat st;
+
+  extension = local + str_len(local);
+  for (;;) {
+    if (extension - local < sizeof(username))
+      if (!*extension || (*extension == *auto_break)) {
+	byte_copy(username,extension - local,local);
+	username[extension - local] = 0;
+	case_lowers(username);
+	errno = 0;
+	pw = getpwnam(username);
+	if (errno == error_txtbsy) _exit(QLX_SYS);
+	if (pw)
+	  if (pw->pw_uid)
+	    if (stat(pw->pw_dir,&st) == 0) {
+	      if (st.st_uid == pw->pw_uid) {
+		dash = "";
+		if (*extension) { ++extension; dash = "-"; }
+		return 1;
+	      }
+	    }
+	    else
+	      if (error_temp(errno)) _exit(QLX_NFS);
+      }
+    if (extension == local) return 0;
+    --extension;
+  }
+}
+
+char num[FMT_ULONG];
+
+void main(argc,argv)
+int argc;
+char **argv;
+{
+  local = argv[1];
+  if (!local) _exit(100);
+
+  if (!userext()) {
+    extension = local;
+    dash = "-";
+    pw = getpwnam(auto_usera);
+  }
+
+  if (!pw) _exit(QLX_NOALIAS);
+
+  substdio_puts(subfdoutsmall,pw->pw_name);
+  substdio_put(subfdoutsmall,"",1);
+  substdio_put(subfdoutsmall,num,fmt_ulong(num,(long) pw->pw_uid));
+  substdio_put(subfdoutsmall,"",1);
+  substdio_put(subfdoutsmall,num,fmt_ulong(num,(long) pw->pw_gid));
+  substdio_put(subfdoutsmall,"",1);
+  substdio_puts(subfdoutsmall,pw->pw_dir);
+  substdio_put(subfdoutsmall,"",1);
+  substdio_puts(subfdoutsmall,dash);
+  substdio_put(subfdoutsmall,"",1);
+  substdio_puts(subfdoutsmall,extension);
+  substdio_put(subfdoutsmall,"",1);
+  substdio_flush(subfdoutsmall);
+
+  _exit(0);
+}