J16N · July 27, 2021 13:31
diff --git a/encrypt.c b/encrypt.c
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

 // Required Prototypes
 char *get_file(char *);
 int encrypt(char *);
 char *renamef(char *, char *);

 int main(int argc, char *argv[])
 {
    printf("\n------- ENCRYPT YOUR FUC***G FILE ------\n");
    
    char *name = get_file("\n File: ");
    encrypt(name);

    return 0;
 }

 char *get_file(char *label)
 {
    // Display the placeholder
    printf("%s", label);

    int i = 0; 
    char *name = NULL;
    for(int ch; ( ch = getchar() ) != '\n'; ++i)
    {
        name = realloc(name, (i + 2) * sizeof(char));
        name[i] = ch;
    }
    name[i] = '\0';
    
    //return name/location of the file
    return name;
 }

 int encrypt(char *name)
 {
    FILE *source = fopen(name, "rb");
    if (!source) return -1;

    // Seek to the end of file offseting from the beginning
    fseek(source, 0, SEEK_END);
    // Total size of the file
    long int len = ftell(source);
    // Rewind to the beginning
    rewind(source);

    printf("\n Encrypting your fuc***g file. Please wait...\n");
    // Rename the output file as <filename>_encrypted.<ext>
    name = renamef(name, "encrypted");
    FILE *target = fopen(name, "wb");

    for (int ch; ( ch = fgetc(source) ) != EOF;)
    {
        // Show how much the encryption is done
        long int curr = ftell(source);
        printf("\r %.1lf%% completed", (double) curr / len * 100);
        fflush(stdout);
        fputc(~ch, target);
    }

    printf("\n Successfully encrypted the file.\n\n");
    // Free the file name
    free(name);
    // Close all the files
    fclose(source);
    fclose(target);
    return 0;
 }

 char *renamef(char *name, char *append)
 {
    int suff_size = strlen(append);
    int name_size = strlen(name);
    // Increase the size of the original string to add our suffix
    name = realloc(name, (name_size + suff_size) * sizeof(char));
    
    // Get index of the period from where we're going to append
    int index_of = 0;
    while(name[index_of] != '.') index_of++;

    // Save extension name to a new string
    char *ext = NULL;
    int j = 0;
    for (int i = index_of + 1; name[i] != '\0'; ++i, ++j)
    {
        ext = realloc(ext, (j + 2) * sizeof(char));
        ext[j] = name[i];
    }
    ext[j] = '\0';

    // Replace the period with _. After that, 
    // add the suffix to the original string. 
    name[index_of] = '_';
    for (int i = index_of + 1, j = 0; append[j] != '\0'; ++i, ++j)
        name[i] = append[j];
    
    // After adding the suffix, put the period in 
    // desired location and copy the extension name
    name[suff_size + index_of + 1] = '.';
    for (int i = suff_size + index_of + 2, j = 0; ext[j] != '\0'; ++i, ++j)
        name[i] = ext[j];
    
    // Free the new string that stored our 
    // extension name
    free(ext);
    return name;
 }
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>

	// Required Prototypes
	char get_file(char );
	int encrypt(char *);
	char renamef(char , char *);

	int main(int argc, char *argv[])
	{
	printf("\n------- ENCRYPT YOUR FUC***G FILE ------\n");

	char *name = get_file("\n File: ");
	encrypt(name);

	return 0;
	}

	char get_file(char label)
	{
	// Display the placeholder
	printf("%s", label);

	int i = 0;
	char *name = NULL;
	for(int ch; ( ch = getchar() ) != '\n'; ++i)
	{
	name = realloc(name, (i + 2) * sizeof(char));
	name[i] = ch;
	}
	name[i] = '\0';

	//return name/location of the file
	return name;
	}

	int encrypt(char *name)
	{
	FILE *source = fopen(name, "rb");
	if (!source) return -1;

	// Seek to the end of file offseting from the beginning
	fseek(source, 0, SEEK_END);
	// Total size of the file
	long int len = ftell(source);
	// Rewind to the beginning
	rewind(source);

	printf("\n Encrypting your fuc***g file. Please wait...\n");
	// Rename the output file as <filename>_encrypted.<ext>
	name = renamef(name, "encrypted");
	FILE *target = fopen(name, "wb");

	for (int ch; ( ch = fgetc(source) ) != EOF;)
	{
	// Show how much the encryption is done
	long int curr = ftell(source);
	printf("\r %.1lf%% completed", (double) curr / len * 100);
	fflush(stdout);
	fputc(~ch, target);
	}

	printf("\n Successfully encrypted the file.\n\n");
	// Free the file name
	free(name);
	// Close all the files
	fclose(source);
	fclose(target);
	return 0;
	}

	char renamef(char name, char *append)
	{
	int suff_size = strlen(append);
	int name_size = strlen(name);
	// Increase the size of the original string to add our suffix
	name = realloc(name, (name_size + suff_size) * sizeof(char));

	// Get index of the period from where we're going to append
	int index_of = 0;
	while(name[index_of] != '.') index_of++;

	// Save extension name to a new string
	char *ext = NULL;
	int j = 0;
	for (int i = index_of + 1; name[i] != '\0'; ++i, ++j)
	{
	ext = realloc(ext, (j + 2) * sizeof(char));
	ext[j] = name[i];
	}
	ext[j] = '\0';

	// Replace the period with _. After that,
	// add the suffix to the original string.
	name[index_of] = '_';
	for (int i = index_of + 1, j = 0; append[j] != '\0'; ++i, ++j)
	name[i] = append[j];

	// After adding the suffix, put the period in
	// desired location and copy the extension name
	name[suff_size + index_of + 1] = '.';
	for (int i = suff_size + index_of + 2, j = 0; ext[j] != '\0'; ++i, ++j)
	name[i] = ext[j];

	// Free the new string that stored our
	// extension name
	free(ext);
	return name;
	}