Subject: PR/9: Christoph Bield: Handle files without program headers gracefully
Origin: FILE5_34-2-gedb7f0d6 <https://github.com/file/file/commit/FILE5_34-2-gedb7f0d6>
Upstream-Author: Christos Zoulas <christos@zoulas.com>
Date: Wed Jul 25 06:12:09 2018 +0000
Bug-Debian: https://bugs.debian.org/882310

--- a/src/readelf.c
+++ b/src/readelf.c
@@ -352,6 +352,11 @@
 	off_t ph_off = off;
 	int ph_num = num;
 
+	if (num == 0) {
+		if (file_printf(ms, ", no program header") == -1)
+			return -1;
+		return 0;
+	}
 	if (size != xph_sizeof) {
 		if (file_printf(ms, ", corrupted program header size") == -1)
 			return -1;
@@ -1278,6 +1283,11 @@
 	char name[50];
 	ssize_t namesize;
 
+	if (num == 0) {
+		if (file_printf(ms, ", no section header") == -1)
+			return -1;
+		return 0;
+	}
 	if (size != xsh_sizeof) {
 		if (file_printf(ms, ", corrupted section header size") == -1)
 			return -1;
@@ -1549,6 +1559,11 @@
 	ssize_t bufsize;
 	size_t offset, align, len;
 	
+	if (num == 0) {
+		if (file_printf(ms, ", no program header") == -1)
+			return -1;
+		return 0;
+	}
 	if (size != xph_sizeof) {
 		if (file_printf(ms, ", corrupted program header size") == -1)
 			return -1;