utils/os: Added sdb_get_current_user().

[sysdb.git] / src / utils / os.c

diff --git a/src/utils/os.c b/src/utils/os.c
index 7858825e1c889ad040b028284b9c4725c29a8068..e3f1fe2d42bb61d072940949a7ddee345836d4f6 100644 (file)
--- a/src/utils/os.c
+++ b/src/utils/os.c
@@ -30,6 +30,7 @@
 #endif /* HAVE_CONFIG_H */
 
 #include "utils/os.h"
+#include "utils/error.h"
 
 #include <errno.h>
 
@@ -44,6 +45,7 @@
 #include <unistd.h>
 
 #include <libgen.h>
+#include <pwd.h>
 
 /*
  * public API
@@ -140,5 +142,29 @@ sdb_remove_all(const char *pathname)
        return remove(pathname);
 } /* sdb_remove_all */
 
+char *
+sdb_get_current_user(void)
+{
+       struct passwd pw_entry;
+       struct passwd *result = NULL;
+
+       uid_t uid;
+
+       char buf[1024];
+       int status;
+
+       uid = geteuid();
+       memset(&pw_entry, 0, sizeof(pw_entry));
+       status = getpwuid_r(uid, &pw_entry, buf, sizeof(buf), &result);
+
+       if (status || (! result)) {
+               char errbuf[1024];
+               sdb_log(SDB_LOG_ERR, "Failed to determine current username: %s",
+                               sdb_strerror(errno, errbuf, sizeof(errbuf)));
+               return NULL;
+       }
+       return strdup(result->pw_name);
+} /* sdb_get_current_user */
+
 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */