Initial commit

Makefile

@@ -0,0 +1,20 @@
+CC = gcc
+CFLAGS = -Wall
+BUILDDIR = .build/
+TARGET = $(BUILDDIR)program
+SRCS = src/
+OBJS=$(patsubst $(SRCS)%.c, $(BUILDDIR)%.o, $(wildcard $(SRCS)*.c))
+
+all: checkbuild $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(CC) $(CFLAGS) -o $(TARGET) $(OBJS)
+
+$(BUILDDIR)%.o: $(SRCS)%.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+checkbuild:
+	./checkbuild.sh
+
+clean:
+	rm -rf $(BUILDDIR)*

checkbuild.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+if [ ! -d ".build" ]; then
+	mkdir -p ./.build
+fi

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);
+    }
+}