From: hackbard <hackbard@tx2.hackdaworld.org>
Date: Mon, 14 Mar 2011 22:36:35 +0000 (+0100)
Subject: corrected build instr + mmap check
X-Git-Url: https://hackdaworld.org/gitweb/?a=commitdiff_plain;h=67d2ef0428995b991a7edf32358d63e5e7213b8a;p=my-code%2Fpnx.git

corrected build instr + mmap check
---

diff --git a/efp_extract.c b/efp_extract.c
index 7198ef4..bf66065 100644
--- a/efp_extract.c
+++ b/efp_extract.c
@@ -3,7 +3,7 @@
  *
  * author: hackbard@hackdaworld.org
  *
- * build: gcc -Wall efp_extract -o efp_extract
+ * build: gcc -Wall efp_extract.c -o efp_extract
  * usage: ./efp_extract file.efp
  *        chmod 640 file_??
  *
@@ -99,6 +99,10 @@ int main(int argc,char **argv) {
 
 	printf("mapping file into memory ...\n");
 	map=mmap(0,offset[nof-1]+len[nof-1],PROT_READ,MAP_SHARED,fd,0);
+	if(map==MAP_FAILED) {
+		perror("mmap");
+		return -1;
+	}
 
 	for(i=0;i<nof;i++) {