Print file IO error texts

1 files changed, 4 insertions, 3 deletions

diff --git a/src/main.c b/src/main.c
index ce3df75..0ed1934 100644
--- a/src/main.c
+++ b/src/main.c
@@ -8,6 +8,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 #ifndef _WIN32
 #include <libgen.h>
 #endif
@@ -62,7 +63,7 @@ int main(int argc, char** argv)
 		fd = fopen(argv[i], "rb");
 		if (fd == NULL)
 		{
-			printf("cannot open file: %s\n", argv[i]);
+			fprintf(stderr, "cannot open file: %s: %s\n", argv[i], strerror(errno));
 			return 1;
 		}
 
@@ -75,12 +76,12 @@ int main(int argc, char** argv)
 		}
 		if (ferror(fd))
 		{
-			printf("error while reading file: %s\n", argv[i]);
+			fprintf(stderr, "error while reading file: %s: %s\n", argv[i], strerror(errno));
 			return 1;
 		}
 		if (!feof(fd))
 		{
-			printf("not end of file?: %s\n",argv[i]);
+			fprintf(stderr, "not end of file?: %s: %s\n", argv[i], strerror(errno));
 			return 1;
 		}