remove previous work on mm(1)

src/mm.c

@@ -1,95 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "libmm.h"
-
-#define STDIN_NAME "<stdin>"
-#define STDOUT_NAME "<stdout>"
-
-enum error{ /* possible errors */
-	FILE_ACCESS_ERROR,
-	REALLOC_ERROR
-};
-
-void
-error(char *argv0, char *file_name, enum error errcode){
-	switch(errcode){
-	case FILE_ACCESS_ERROR:
-		fprintf(stderr, "%s: %s: cannot open file\n", argv0, file_name);
-		break;
-	case REALLOC_ERROR:
-		fprintf(stderr, "%s: error reallocating array\n", argv0);
-		break;
-	}
-	exit(1);
-}
-
-int
-main(int argc, char *argv[]){
-	char *file_name;
-	FILE **input = (FILE **)malloc(sizeof(FILE*));
-	FILE **output = (FILE **)malloc(sizeof(FILE*));
-	int i;
-	size_t inputc = 1;
-	size_t outputc = 1;
-	*input = NULL;
-	*output = NULL;
-
-	/* messy argparsing, fix me to use POSIX getopt */
-	for(i = 1; i < argc; ++i){
-		if(!strcmp(argv[i++], "-i")){
-			if(i == argc){
-				fprintf(stderr, "%s: Missing option argument for \"-i\"\n", argv[0]);
-				return 1;
-			}
-			file_name = argv[i];
-			input[inputc-1] = fopen(file_name, "r");
-			if(input[inputc-1] == NULL){
-				free(input);
-				free(output);
-				error(argv[0], file_name, FILE_ACCESS_ERROR);
-			}
-			/* in one go, increment inputc, reallocate the input array, and set the new space in the array to NULL */
-			if((input = realloc(input, sizeof(FILE*) * (++inputc))) == NULL){
-				free(output);
-				error(argv[0], file_name, REALLOC_ERROR);
-			}
-			input[inputc-1] = NULL;
-		}else if(!strcmp(argv[i++], "-o")){
-			if(i == argc){
-				fprintf(stderr, "%s: Missing option argument for \"-o\"\n", argv[0]);
-				return 1;
-			}
-			file_name = argv[i];
-			output[outputc-1] = fopen(file_name, "r");
-			if(input[outputc-1] == NULL){
-				free(input);
-				free(output);
-				error(argv[0], file_name, FILE_ACCESS_ERROR);
-			}
-			if((output = realloc(output, sizeof(FILE*) * (++outputc))) == NULL){
-				free(input);
-				error(argv[0], file_name, REALLOC_ERROR);
-			}
-			output[outputc-1] = NULL;
-		}else{
-			fprintf(stderr, "%s: %s: Unrecognized option.\n", argv[0], argv[i]);
-			return 1;
-		}
-	}
-
-	/* default to stdin/stdout */
-	if(*input == NULL){
-		*input = stdout;
-		++inputc;
-	}
-	if(*output = NULL){
-		*output = stdout;
-		++outputc;
-	}
-
-	for(i = 0; i < inputc; ++i)
-		tee(input[inputc], output, outputc);
-
-	return 0;
-}