Revert "Drop unused function subid_init()"

As rbalint points out, this was an exported fn.  It also is
the only way for a libsubid user to do what it does, so let's
not drop it.

This reverts commit 477c8e6f42df1e17e45584e74988eb46a11e6caa.

diff --git a/libsubid/api.c b/libsubid/api.c
index 0c8c451a82397c9fb7a41cdc9b1e8558e5cbd4e1..00da74f62284ca2d99228a639f876734658490d8 100644 (file)
--- a/libsubid/api.c
+++ b/libsubid/api.c
@@ -17,6 +17,31 @@
 #include "subid.h"
 #include "shadowlog.h"
 
+bool subid_init(const char *progname, FILE * logfd)
+{
+       FILE *shadow_logfd;
+       if (progname) {
+               progname = strdup(progname);
+               if (!progname)
+                       return false;
+               log_set_progname(progname);
+       } else {
+               log_set_progname("(libsubid)");
+       }
+
+       if (logfd) {
+               log_set_logfd(logfd);
+               return true;
+       }
+       shadow_logfd = fopen("/dev/null", "w");
+       if (!shadow_logfd) {
+               log_set_logfd(stderr);
+               return false;
+       }
+       log_set_logfd(shadow_logfd);
+       return true;
+}
+
 static
 int get_subid_ranges(const char *owner, enum subid_type id_type, struct subid_range **ranges)
 {

diff --git a/libsubid/subid.h.in b/libsubid/subid.h.in
index c8d9273f4223d4077b2cc4ce35ff4fb41ecfff2e..79744eda1676b707ecdc4cc8e6f67ae36302fba9 100644 (file)
--- a/libsubid/subid.h.in
+++ b/libsubid/subid.h.in
@@ -39,6 +39,22 @@ enum subid_status {
 extern "C" {
 #endif
 
+/*
+ * subid_init: initialize libsubid
+ *
+ * @progname: Name to display as program.  If NULL, then "(libsubid)" will be
+ *            shown in error messages.
+ * @logfd:    Open file pointer to pass error messages to.  If NULL, then
+ *            /dev/null will be opened and messages will be sent there.  The
+ *            default if libsubid_init() is not called is stderr (2).
+ *
+ * This function does not need to be called.  If not called, then the defaults
+ * will be used.
+ *
+ * Returns false if an error occurred.
+ */
+bool subid_init(const char *progname, FILE *logfd);
+
 /*
  * subid_get_uid_ranges: return a list of UID ranges for a user
  *