From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Fri, 6 Feb 2004 23:08:04 +0000 (+0000)
Subject: setreuid(0, 0) fails on QNX if the euid is not already 0 so set the
X-Git-Tag: SUDO_1_6_8~186
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a622cb27951e60dda223e82b98e8c72661239417;p=sudo

setreuid(0, 0) fails on QNX if the euid is not already 0 so set the
euid first, then just call setuid(0) to set the real uid too.
---

diff --git a/set_perms.c b/set_perms.c
index 8d9e47b00..6588024ee 100644
--- a/set_perms.c
+++ b/set_perms.c
@@ -256,8 +256,10 @@ set_perms_suid(perm)
     switch (perm) {
 	case PERM_FULL_ROOT:
 	case PERM_ROOT:
-				if (setreuid(0, 0))
-				    fatal("setreuid(0, 0) failed, your operating system may have a broken setreuid() function\nTry running configure with --disable-setreuid", 0);
+				if (setreuid(-1, 0))
+				    fatal("setreuid(-1, 0) failed, your operating system may have a broken setreuid() function\nTry running configure with --disable-setreuid", 0);
+				if (setuid(0))
+				    fatal("setuid(0)", 1);
 			      	break;
 
 	case PERM_USER: