Initial commit

src/main.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char *argv[]) 
+{
+    FILE* fp;
+    void filecopy(FILE *, FILE *);
+    char *prog = argv[0];
+
+    if (argc == 1) {
+        filecopy(stdin, stdout);
+    }
+    else {
+        while (--argc > 0) {
+            if ((fp = fopen(*++argv, "r")) == NULL) {
+                fprintf(stderr, "%s: can't open %s\n", prog, *argv);
+                exit(1);
+            }
+            else {
+                filecopy(fp, stdout);
+                fclose(fp);
+            }
+        }
+        
+    }
+
+    if (ferror(stdout)) {
+        fprintf(stderr, "%s: error writing stdout\n", prog);
+        exit(2);
+    }
+
+    exit(0);
+}
+
+void filecopy(FILE *ifp, FILE *ofp)
+{
+    int c;
+
+    while ((c = getc(ifp)) != EOF) {
+        putc(c, ofp);
+    }
+}