#include <stdio.h>
#include <errno.h>
#include <assert.h>
#include <stdlib.h>

void printfile(char *file);

int main(int argc, char *argv[])
{
	if (argc==1)
	{
		fprintf(stderr, "usage: printfiles file1 [file2 ...]\n    file1, file2, etc.: files to print\n");
		exit(EINVAL);
	}
	int i;
	for (int i = 1; i < argc; ++i)
	{
		printfile(argv[i]);
	}
	exit(0);
	return 0;
}

void printfile(char *file){
	assert(file!=NULL);
	FILE *fp = fopen(file, "rb");
	if (!fp)
	{
		fprintf(stderr, "Can't open input file %s!\n", file);
		exit(ENOENT);
	}
	char buff;
	while (!feof(fp)){
		buff = fgetc(fp);
		printf("%c", buff);
	}
	printf("\n");
	fclose(fp);
}