From 9adde985d9c590220eb4513dedb2ef5715631984 Mon Sep 17 00:00:00 2001
From: emma <emma@tebibyte.media>
Date: Mon, 24 Jul 2023 09:01:41 -0600
Subject: [PATCH] fixed segfault

---
 src/cat.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/cat.c b/src/cat.c
index 74df7d5..1807acf 100644
--- a/src/cat.c
+++ b/src/cat.c
@@ -18,6 +18,7 @@
  * along with this program. If not, see https://www.gnu.org/licenses/.
  */
 
+#include <errno.h>
 #include <fcntl.h>
 #include <sysexits.h>
 #include <stdbool.h>
@@ -71,11 +72,12 @@ int main(int argc, char *argv[]) {
 		 *           but shall accept multiple occurrences of '-' as a file
 		 *           operand.
 		 */
-		printf("argv[%d]: %s\n", i, argv[1]);
-
-		if (argc == 1 || argv[i] == "-") { file = fdopen(1, "r"); }
-		else if ((file = fopen(argv[i], O_RDONLY)) == NULL) {
-			fputs(usage, stderr); 
+		printf("argv[%d]: %s\n", i, argv[i]);
+		if (argv[i] == "-" || u && (argc - 1) == 1 || !u && argc == 1) {
+			file = fdopen(0, "r");
+		} else if ((file = fopen(argv[i], "r")) == NULL) {
+			// TODO: Add error handling
+			fputs(usage, stderr);
 			return EX_NOINPUT;
 		}
 
@@ -87,7 +89,11 @@ int main(int argc, char *argv[]) {
 				putchar(byte);
 			}
 		} else {
-			char *buf = calloc(4096, 1);
+			char *buf = calloc(1, 4096);
+			while (byte != EOF) {
+				byte = fgetc(file);
+				fputc(byte, fdopen(1, "r"));
+			}
 		}
 		if (fclose(file) == -1) {
 			fprintf(stderr, "%s: %s: Error closing file.\n", argv[0], argv[i]);