k9core

commit 069bde6d7046b7c246d2823dbc44bd3073c0c461
parent 642d6f396c0e196702fa88949597e783350bf58d
Author: qorg11 <qorg@vxempire.xyz>
Date:   Wed,  5 Aug 2020 17:26:03 +0200

i kinda hate posix because -n, but there it is
i just have to add a for loop so it iterates every file passed
by args

Diffstat:
M
src/head.c
 | 
29
++++++++++++++++++++++++-----

1 file changed, 24 insertions(+), 5 deletions(-)
diff --git a/src/head.c b/src/head.c
@@ -4,8 +4,14 @@
 int
 head(FILE *file, int lines)
 {
+  if(file == NULL)
+    {
+      printf("error opening file\n");
+      return 1;
+    }
   int a;
   int c = 0;
+  
   while((a = fgetc(file)) != EOF)
     {
       if(a == '\n')
@@ -24,14 +30,27 @@ int
 main(int argc, char *argv[])
 {
   int lines = 10;
-  if(argc == 1)
-    head(stdin,lines);
-  if(argc == 2)
-    head(fopen(argv[1],"r"),lines);
-  if(argc == 3)
+  if(argv[1][1] == 'n' && argc == 4)
+    {
+
+    }
+
+  switch(argc)
     {
+    case 1:
+      head(stdin,lines);
+      break;
+    case 2:
+      head(fopen(argv[1],"r"),lines);
+      break;
+    case 3:
       lines = abs(atoi(argv[1]));
       head(fopen(argv[2],"r"),lines);
+      break;
+    default:
+      lines = atoi(argv[2]);
+      head(fopen(argv[3],"r"),lines);
+      break;
     }
   return 0;
 }