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// Copyright (c) 2018-2026 Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
#include "cross_os.h"
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#define _CRT_SECURE_NO_WARNINGS
int directoryExists(const char* path) {
#if defined(_WIN32) || defined(_WIN64)
#elif __APPLE__
#elif __unix__
struct stat st = {0};
return stat(path, &st) + 1;
#else
return -1;
#endif
}
int create_dir(const char* path) {
#if defined(_WIN32)
return (CreateDirectoryA(path, NULL) || GetLastError() == ERROR_ALREADY_EXISTS);
#else
return (mkdir(path, 0755) == 0 || errno == EEXIST);
#endif
}
// Creates the entire directory tree recursively/iteratively
int create_dir_tree(const char* path) {
char tmp[512];
size_t len = strlen(path);
if (len >= sizeof(tmp)) {
return false; // Path too long
}
strncpy(tmp, path, len);
for (size_t i = 0; i < len; i++) {
if (tmp[i] == '\\') {
tmp[i] = '/';
}
}
for (size_t i = 0; i < len; i++) {
if (tmp[i] == '/') {
if (i == 0) {
continue;
}
#if defined(_WIN32)
if (i == 3 && tmp[1] == ':') {
continue;
}
#endif
tmp[i] = '\0';
if (!create_dir(tmp)) {
return false;
}
tmp[i] = '/';
}
}
return create_dir(tmp);
}
const char* getUserDir() {
#if defined(_WIN32) || defined(_WIN64)
return getenv("HOME");
#elif __APPLE__
#elif __unix__
struct passwd* pw = getpwuid(getuid());
return pw->pw_dir;
#endif
}
#if defined(__linux__) && defined(__GLIBC__)
#include <stdio.h>
#include <execinfo.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
void handler(int sig) {
void* array[100];
size_t size;
// get void*'s for all entries on the stack
size = backtrace(array, 100);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, STDERR_FILENO);
exit(1);
}
void _linux_register_error_handler() {
signal(SIGSEGV, handler); // install our handler
signal(SIGABRT, handler); // install our handler
}
#endif
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