From: Mark Wielaard <mark@klomp.org>
Date: Sun, 19 Jul 2020 17:36:38 +0000 (+0200)
Subject: elfclassify: Handle fwrite to stdout failing.
X-Git-Tag: elfutils-0.181~13
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4a3f7f0e4dc1ad2906d05a1014d74c4728817965;p=thirdparty%2Felfutils.git

elfclassify: Handle fwrite to stdout failing.

In theory an fwrite can fail, if so, signal it by calling issue ().

Signed-off-by: Mark Wielaard <mark@klomp.org>
---

diff --git a/src/ChangeLog b/src/ChangeLog
index f65246f11..2452cd400 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2020-07-19  Mark Wielaard  <mark@klomp.org>
+
+	* elfclassify.c (process_current_path): Handle fwrite failing.
+
 2020-07-05  Mark Wielaard  <mark@klomp.org>
 
 	* stack.c (module_callback): Don't assert if dwfl_module_info fails.
diff --git a/src/elfclassify.c b/src/elfclassify.c
index 535cc49fc..624bb8616 100644
--- a/src/elfclassify.c
+++ b/src/elfclassify.c
@@ -827,7 +827,8 @@ process_current_path (int *status)
       break;
     case do_print0:
       if (checks_passed == flag_print_matching)
-        fwrite (current_path, strlen (current_path) + 1, 1, stdout);
+        if (fwrite (current_path, strlen (current_path) + 1, 1, stdout) < 1)
+	  issue (errno, N_("writing to standard output"));
       break;
     case no_print:
       if (!checks_passed)