From: Arran Cudbard-Bell <a.cudbardb@freeradius.org>
Date: Thu, 26 Jun 2014 00:24:19 +0000 (+0100)
Subject: Check return code of write
X-Git-Tag: release_3_0_4_rc2~171
X-Git-Url: http://www.project-moonshot.org/gitweb/?p=freeradius.git;a=commitdiff_plain;h=5b36dc81adf01fc3caa1d60776b41707a4395e84

Check return code of write
---

diff --git a/src/lib/debug.c b/src/lib/debug.c
index 49a0230..3d1b1a4 100644
--- a/src/lib/debug.c
+++ b/src/lib/debug.c
@@ -150,7 +150,9 @@ static int fr_debugger_attached(void)
 
       		if (_PTRACE(PTRACE_ATTACH, ppid) == 0) {
       			/* If we attached then we're not running under a debugger */
-      			write(from_child[1], &ret, sizeof(ret));
+      			if (write(from_child[1], &ret, sizeof(ret)) < 0) {
+      				fprintf(stderr, "Writing ptrace status to parent failed: %s", fr_syserror(errno));
+      			}
 
 			/* Wait for the parent to stop and continue it */
 			waitpid(ppid, NULL, 0);
@@ -163,7 +165,9 @@ static int fr_debugger_attached(void)
 
 		ret = 1;
 		/* Something is already attached */
-		write(from_child[1], &ret, 1);
+		if (write(from_child[1], &ret, 1) < 0) {
+      			fprintf(stderr, "Writing ptrace status to parent failed: %s", fr_syserror(errno));
+		}
 
 		exit(0);
 	/* Parent */