source: Main/trunk/Common/dir.c@ 43

/* $Id: dir.c 22 2024-09-14 13:25:38Z nishi $ */

#include "cm_dir.h"

#include "cm_string.h"

#include <sys/stat.h>
#include <dirent.h>
#include <stdlib.h>
#include <string.h>

int cm_sort(const void* _a, const void* _b) {
        char* a = *(char**)_a;
        char* b = *(char**)_b;
        return strcmp(a, b);
}

char** cm_scandir(const char* path) {
        DIR* dir = opendir(path);
        if(dir != NULL) {
                char** r = malloc(sizeof(*r));
                r[0] = NULL;
                struct dirent* d;
                while((d = readdir(dir)) != NULL) {
                        if(strcmp(d->d_name, ".") != 0 && strcmp(d->d_name, "..") != 0) {
                                struct stat s;
                                char* p = cm_strcat3(path, "/", d->d_name);
                                stat(p, &s);
                                free(p);

                                char** old = r;
                                int i;
                                for(i = 0; old[i] != NULL; i++)
                                        ;
                                r = malloc(sizeof(*r) * (i + 2));
                                for(i = 0; old[i] != NULL; i++) r[i] = old[i];
                                r[i] = cm_strcat(d->d_name, S_ISDIR(s.st_mode) ? "/" : "");
                                r[i + 1] = NULL;
                                free(old);
                        }
                }
                int len;
                for(len = 0; r[len] != NULL; len++)
                        ;
                qsort(r, len, sizeof(char*), cm_sort);

                char** old = r;
                int i;
                for(i = 0; old[i] != NULL; i++)
                        ;
                r = malloc(sizeof(*r) * (i + 2));
                for(i = 0; old[i] != NULL; i++) r[i + 1] = old[i];
                r[0] = cm_strdup("../");
                r[i + 1] = NULL;
                free(old);

                return r;
        } else {
                return NULL;
        }
}