Commit fa2172be authored by Matthew Burket's avatar Matthew Burket
Browse files

First draft of the file operations

parent 659d2512

file_operations.c

+28 −3
Original line number Diff line number Diff line
@@ -3,15 +3,40 @@ 
//



#include "file_operations.h"

#include "string.h"



/// This method gets the last

///

/// \param fp

/// \param path

/// \param output

/// \return

int get_last_line(FILE fp, char **output) {

int get_last_line(char *path, char *output) {

    char *currentLine = malloc(BUFFSIZE);

    char *lastLine = malloc(BUFFSIZE);

    FILE *fp = fopen(path, "r");

    while (fgets(currentLine, BUFFSIZE, fp)) {

        lastLine = strcpy(lastLine, currentLine);

    }

    strcpy(output, lastLine);

    free(lastLine);

    free(currentLine);





}

int get_specific_line(FILE fp, char **output) {

int get_specific_line(char *path, char *output, int finalLine) {

    char *currentLine = malloc(BUFFSIZE);

    char *lastLine = malloc(BUFFSIZE);

    FILE *fp = fopen(path, "r");

    int line = 1;

    while (fgets(currentLine, BUFFSIZE, fp)) {

        lastLine = strcpy(lastLine, currentLine);

        if (line == finalLine) {

            break;

        }

        line++;

    }

    strcpy(output, lastLine);

    free(lastLine);

    free(currentLine);



}

file_operations.h

+5 −2
Original line number Diff line number Diff line
@@ -6,7 +6,10 @@ 
#define COMS352_SHELL_FILE_OPERATIONS_H



#include <stdio.h>

#include <stdlib.h>



int get_last_line(FILE fp, char **output);

int get_specific_line(FILE fp, char **output);

#define BUFFSIZE (sizeof(char) * 5000)



int get_last_line(char *path, char *output);

int get_specific_line(char *path, char *output, int finalLine);

#endif //COMS352_SHELL_FILE_OPERATIONS_H

main.c

+2 −1
Original line number Diff line number Diff line
@@ -5,10 +5,11 @@ 
#include <stdlib.h>



#include "tokenize.h"

#include "file_operations.h"



#define TRUE 0

#define READ 0

#define BUFFSIZE (sizeof(char) * 5000)





int main() {

    // Setup Some Vars