Fix a problem in handling a failure to open an ELF file

ltrace-0.7.91-cant_open.patch

@@ -0,0 +1,36 @@
+diff -urp ltrace-0.7.91/libltrace.c master/libltrace.c
+--- ltrace-0.7.91/libltrace.c	2014-01-14 16:31:37.696174464 +0100
++++ master/libltrace.c	2013-11-21 14:06:38.623701688 +0100
+@@ -113,9 +117,13 @@ ltrace_init(int argc, char **argv) {
+ 	if (command) {
+ 		/* Check that the binary ABI is supported before
+ 		 * calling execute_program.  */
+-		struct ltelf lte;
+-		ltelf_init(&lte, command);
+-		ltelf_destroy(&lte);
++		{
++			struct ltelf lte;
++			if (ltelf_init(&lte, command) == 0)
++				ltelf_destroy(&lte);
++			else
++				exit(EXIT_FAILURE);
++		}
+ 
+ 		pid_t pid = execute_program(command, argv);
+ 		struct process *proc = open_program(command, pid);
+diff -urp ltrace-0.7.91/ltrace-elf.c master/ltrace-elf.c
+--- ltrace-0.7.91/ltrace-elf.c	2014-01-14 16:31:37.688174420 +0100
++++ master/ltrace-elf.c	2013-11-22 18:17:11.767721609 +0100
+@@ -361,8 +361,11 @@ ltelf_init(struct ltelf *lte, const char
+ {
+ 	memset(lte, 0, sizeof *lte);
+ 	lte->fd = open(filename, O_RDONLY);
+-	if (lte->fd == -1)
++	if (lte->fd == -1) {
++		fprintf(stderr, "Can't open %s: %s\n", filename,
++			strerror(errno));
+ 		return 1;
++	}
+ 
+ 	elf_version(EV_CURRENT);
+ 

ltrace.spec

@@ -1,7 +1,7 @@
 Summary: Tracks runtime library calls from dynamically linked executables
 Name: ltrace
 Version: 0.7.91
-Release: 5%{?dist}
+Release: 6%{?dist}
 URL: http://ltrace.alioth.debian.org/
 License: GPLv2+
 Group: Development/Debuggers
@@ -43,6 +43,9 @@ Patch7: ltrace-0.7.91-ppc64-unprelink.patch
 # Man page nits.  Backport of an upstream patch.
 Patch8: ltrace-0.7.91-man.patch
 
+# https://bugzilla.redhat.com/show_bug.cgi?id=1044766
+Patch9: ltrace-0.7.91-cant_open.patch
+
 %description
 Ltrace is a debugging program which runs a specified command until the
 command exits.  While the command is executing, ltrace intercepts and
@@ -64,6 +67,7 @@ execution of processes.
 %patch6 -p1
 %patch7 -p1
 %patch8 -p1
+%patch9 -p1
 
 %build
 %configure --docdir=%{?_pkgdocdir}%{!?_pkgdocdir:%{_docdir}/%{name}-%{version}}
@@ -88,6 +92,10 @@ echo ====================TESTING END=====================
 %{_datadir}/ltrace
 
 %changelog
+* Tue Jan 14 2014 Petr Machata <pmachata@redhat.com> - 0.7.91-6
+- Fix a problem when an invalid command has been found
+  (ltrace-0.7.91-cant_open.patch)
+
 * Tue Jan 14 2014 Petr Machata <pmachata@redhat.com> - 0.7.91-5
 - Fix interpretation of x86_64 PLT with IRELATIVE slots.
   (ltrace-0.7.91-x86_64-irelative.patch)