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#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <pthread.h>
#define PATTERNS_FILE "patterns.txt"
void* xmalloc(size_t size)
{
void* ptr = malloc(size);
if (ptr == NULL)
{
fprintf(stderr, "Memory allocation failed\n");
exit(EXIT_FAILURE);
}
return ptr;
}
char** read_lines(const char* filename)
{
clock_t ctime = clock(), lastPrint = clock();
FILE* file = fopen(filename, "r");
if (file == NULL)
{
fprintf(stderr, "Error opening file %s: ", filename);
perror("");
return nullptr;
}
int count = 0;
{
char* buf = xmalloc(10000);
while (fgets(buf, 10000, file) != NULL)
{
if (buf[0] == '#')
{
continue;
}
count++;
}
free(buf);
rewind(file);
}
// fprintf(stderr, "Counted %d lines from %s in %.3f ms\n", count, filename, (clock() - ctime) * 1000.0 / CLOCKS_PER_SEC);
// count = count_lines(file);
// printf("Counted %d lines from %s in %.3f ms\n", count, filename, (clock() - ctime) * 1000.0 / CLOCKS_PER_SEC);
rewind(file);
char** lines = xmalloc((count + 1) * sizeof(char*));
char* buf = xmalloc(10000);
for (int i = 0; i < count; i++)
{
if (fgets(buf, 10000, file) == NULL)
{
fprintf(stderr, "Error reading line %d from %s\n", i + 1, filename);
free(buf);
return nullptr;
}
if (buf[0] == '#')
{
i--;
continue;
}
buf[strcspn(buf, "\n")] = 0;
lines[i] = strdup(buf);
// double elapsed = (clock() - lastPrint) * 1000.0 / CLOCKS_PER_SEC;
// if (elapsed > 50)
// {
// fprintf(stderr, "\rRead %d lines from %s in %.3f ms\r", i + 1, filename, (clock() - ctime) * 1000.0 / CLOCKS_PER_SEC);
// lastPrint = clock();
// }
}
free(buf);
lines[count] = nullptr;
fclose(file);
printf("Read %d definitions from %s in %.3f ms\n", count, filename, (clock() - ctime) * 1000.0 / CLOCKS_PER_SEC);
return lines;
}
char** grow_array(char** array, size_t newSize)
{
printf("Growing array to %zu\n", newSize);
char** newArray = realloc(array, sizeof(char*) * newSize);
if (newArray == NULL)
{
fprintf(stderr, "Memory allocation failed\n");
exit(EXIT_FAILURE);
}
return newArray;
}
void check_dups(char* filename) {
printf("# %s:\n", filename);
char** lines = read_lines(filename);
if (lines == NULL)
{
fprintf(stderr, "Error reading lines\n");
return;
}
for (int i = 0; lines[i] != NULL; i++)
{
for (int j = 0; lines[j] != NULL; j++)
{
// check if string contains
if (lines[i] != lines[j] && strstr(lines[i], lines[j]) != NULL)
{
printf("Found duplicate: %d~%d: '%s' ~ '%s'\n", i, j, lines[i], lines[j]);
}
}
}
}
int main(void)
{
printf("Hello, World!\n");
check_dups(PATTERNS_FILE);
check_dups("allowed_ips.txt");
check_dups("allowed_patterns.txt");
return 0;
}
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