remove embryo of feature multiple storages and refactor how arguments work

1 files changed, 217 insertions, 0 deletions

diff --git a/implementation.c b/implementation.c
new file mode 100644
index 0000000..0ef17c1
--- /dev/null
+++ b/implementation.c
@@ -0,0 +1,217 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <termios.h>
+#include <string.h>
+#include <time.h>
+#include <sys/wait.h>
+#include <errno.h>
+
+#include "handerror.h"
+#include "easydir.h"
+
+// == global var == 
+extern char *gPath_rootdir;
+
+char* getPassword(char *path, char *password, int maxlen)
+{
+	FILE *filePass;
+	filePass = fopen(path, "r");
+	if(filePass == NULL) {
+		if(errno == ENOENT) { // file doesn't exist
+			printError("lpass: No such file exists\n");
+		}
+		callError(110);
+	}
+
+	char sign[maxlen];
+	if(!fgets(sign, sizeof(sign), filePass)) {
+		callError(111);
+	}
+
+	strcpy(password, sign);
+	fclose(filePass);
+	return password;
+}
+
+void nonvisibleEnter(int status)
+{
+	struct termios term_settings;
+	tcgetattr(0, &term_settings); // get current settings
+	if(status == 1) {
+		term_settings.c_lflag &= ~ECHO; // flag reset
+	}
+	else {
+		term_settings.c_lflag |= ECHO;
+	}
+	tcsetattr(0, TCSANOW, &term_settings);
+}
+
+void insertPass(char *add_path, char *password)
+{
+	/* gPath_rootdir = /home/[username]/.lock-password/Password-Storage/
+	add_path = banks/france/[number]
+	main_path = banks/france
+	file_path = [number] */
+
+	char *main_path = malloc( sizeof(char) * (strlen(add_path)+1) );
+	char *file_path = malloc( sizeof(char) * (strlen(add_path)+1) );
+
+	if(splitPath(add_path, main_path, file_path) == NULL) {
+		printError("lpass: The path you specified is incorrect\n");
+	}
+
+	int pass_buf = strlen(gPath_rootdir) + strlen(add_path) + 1;
+	char *final_path = (char*) malloc(sizeof(char) * pass_buf);
+
+	strcpy(final_path, gPath_rootdir);
+	strcat(final_path, main_path);
+
+	if(strcmp(main_path, "") != 0) {
+		int pid = fork();
+		if(pid == -1) callError(103);
+		if(pid == 0) { /* new process */
+			execlp("mkdir", "mkdir", "-p", main_path, NULL);
+			perror("mkdir");
+			exit(4);
+		}
+		wait(&pid);
+	}
+	
+	if(chdir(final_path) != 0) {
+		callError(107);
+	}
+
+	// create file, copy password there
+	FILE *filePass;
+	filePass = fopen(file_path, "w");	
+	if(filePass == NULL) {
+		callError(108);
+	}
+	fputs(password, filePass);
+	fclose(filePass);
+
+	free(main_path);
+	free(file_path);
+}
+
+char *typePass(char *text, char *dest, int minlen, int maxlen)
+{
+	printf("%s", text);
+	if(fgets(dest, sizeof(char)*maxlen, stdin) == NULL) {
+		nonvisibleEnter(0);
+		printError("lpass: Unexpected end of file\n");
+	}
+
+	int len = strlen(dest);
+	if(len < minlen || len > maxlen) {
+		nonvisibleEnter(0);
+		printError("lpass: incorrect password\n");
+	}
+	
+	if(dest[len-1] == '\n') {
+		dest[len-1] = '\0';
+	}
+
+	#if defined(DEBUG)
+		printf("%s", dest);
+	#endif
+
+	printf("\n"); // for new line
+	return dest;
+}
+
+int userEnterPassword(int minlen, int maxlen, char *path_insert)
+{
+	char *pass_one = (char *) malloc(sizeof(char) * maxlen);
+	char *pass_two = (char *) malloc(sizeof(char) * maxlen);
+
+	nonvisibleEnter(1); // change terminal work
+	typePass("Please type your new password: ", pass_one, minlen, maxlen);
+	typePass("Please type your new password again: ", pass_two, minlen, maxlen);
+	nonvisibleEnter(0);
+
+	int rvalue = 0;
+	if(strcmp(pass_one, pass_two) == 0) {
+		insertPass(path_insert, pass_one);
+		rvalue = 1;
+	}
+
+	free(pass_one);
+	free(pass_two);
+	return rvalue;
+}
+
+char *generatePassword(char *dest, int amount, int max_len)
+{
+	char allowed_symbols[] = {
+		'A','E','I','J','O','U','B','C','D','F','G','H',
+		'K','L','M','N','P','Q','R','S','T','V','W','X',
+		'Y','Z','a','e','i','j','o','u','b','c','d','f',
+		'g','h','k','l','m','n','p','q','r','s','t','v',
+		'w','x','y','z','1','2','3','4','5','6','7','8',
+		'9','0','!','#','$',';','%','^',':','&','?','*',
+		'(',')','-','_','+','=','<', '>'
+	};
+	int max = sizeof(allowed_symbols);
+	srand(time(NULL));
+
+	char password[max_len];
+	for(int i=0; i < amount; i++)
+	{
+		char c = allowed_symbols[rand() % max];
+
+		password[i] = c;
+		password[i+1] = '\0';
+	}
+
+	strcpy(dest, password);
+	return dest;
+}
+
+unsigned long hash(char *str)
+{
+    unsigned long hash = 5381;
+    char c;
+
+    while( (c = *str++) )
+        hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
+
+    return hash;
+}
+
+static void clearStdinBuff()
+{
+	char garbage;
+
+	while( (garbage = fgetc(stdin)) != '\n' && garbage != EOF )
+		;
+}
+
+
+int getAnswer(char *text)
+{
+	char answer;
+	printf("%s\n", text);
+	while( (answer = fgetc(stdin)) )
+	{
+		clearStdinBuff();
+		switch(answer)
+		{
+			case 'Y':
+			case 'y':
+				return 1;
+			case 'N':
+			case 'n':
+				return 0;
+			case EOF:
+				printError("lpass: Unexpected end of file\n");
+			default: {
+				printf("%s\n", text);
+				break;
+			}
+		}
+	}
+
+	return -1;
+}