59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <string.h>
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int str_to_int(char* str) {
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int output = 0;
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for (int i = 0; i < strlen(str); i++) {
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output *= 10;
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output += str[i] - '0';
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}
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return output;
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}
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void invalid_args(int argc) {
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if (argc < 4 && argc > 5) {
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printf("nuhuh\n");
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exit(1);
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}
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}
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int random_len(int min_length, int max_length) {
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return rand() % (max_length - min_length + 1) + min_length;
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}
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char* random_str(int length, char* symbols) {
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char* str = malloc(sizeof(char) * (length + 1));
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for (int i = 0; i < length; i++) {
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int index = rand() % strlen(symbols);
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str[i] = symbols[index];
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}
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str[length] = '\0';
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return str;
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}
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int main(int argc, char** argv) {
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invalid_args(argc);
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srand(time(NULL));
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int min_length = str_to_int(argv[1]);
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int max_length = str_to_int(argv[2]);
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int length = random_len(min_length, max_length);
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if (argc != 4) {
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char* password = random_str(length, argv[4]);
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puts(password);
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free(password);
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} else {
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char* password = random_str(length, argv[3]);
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puts(password);
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free(password);
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}
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}
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