X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/53a941d3f97a50964587c6e9533b1e43e74a57a8..ddb384f1ac7fbaed5a4dbb02ddc37d0713727be4:/common/util.h

diff --git a/common/util.h b/common/util.h
index b76e1259..b4c45056 100644
--- a/common/util.h
+++ b/common/util.h
@@ -27,6 +27,14 @@
 #ifndef UTIL_H
 #define UTIL_H
 
+#ifndef CONFIG_H
+#  include "config.h"
+#endif
+
+#include <sys/types.h>
+
+#include <mLib/macros.h>
+
 #ifdef __cplusplus
   extern "C" {
 #endif
@@ -46,28 +54,42 @@
 
 extern void u_quotify(dstr */*d*/, const char */*p*/);
 
-/* --- @u_detach@ --- *
+/* --- @u_getuser@ --- *
  *
- * Arguments:	---
+ * Arguments:	@const char *name@ = user name or id requested
+ *		@gid_t *gg@ = where to store corresponding gid
  *
- * Returns:	---
+ * Returns:	Corresponding uid.
+ *
+ * Use:		Resolves a user name into a uid.  Dies on failure; suitable
+ *		for use in argument parsing.
+ */
+
+extern uid_t u_getuser(const char */*name*/, gid_t */*gg*/);
+
+/* --- @u_getgroup@ --- *
  *
- * Use:		Detaches from the current terminal and ensures it can never
- *		acquire a new one.  Calls @fork@.
+ * Arguments:	@const char *name@ = user name or id requested
+ *
+ * Returns:	Corresponding gid.
+ *
+ * Use:		Resolves a group name into a gid.  Dies on failure; suitable
+ *		for use in argument parsing.
  */
 
-extern void u_detach(void);
+extern gid_t u_getgroup(const char */*name*/);
 
-/* --- @u_daemon@ --- *
+/* --- @u_setugid@ --- *
  *
- * Arguments:	---
+ * Arguments:	@uid_t u@ = user to set
+ *		@gid_t g@ = group to set
  *
- * Returns:	Zero if OK, nonzero on failure.
+ * Returns:	---
  *
- * Use:		Becomes a daemon.
+ * Use:		Sets user and group to the given values; aborts on failure.
  */
 
-extern int u_daemon(void);
+extern void u_setugid(uid_t /*u*/, gid_t /*g*/);
 
 /*----- That's all, folks -------------------------------------------------*/