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#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
const char *get_filename_ext(const char *filename) {
const char *dot = strrchr(filename, '.');
if (!dot || dot == filename) return "";
return dot + 1;
}
void cpdir(const char *path, const char *dest) {
DIR *dirp = opendir(path);
struct dirent *dirp_ent;
struct stat dest_st;
stat(path, &dest_st);
if ((dest_st.st_mode & S_IFDIR) != 0) {
mkdir(dest, dest_st.st_mode);
}
while ((dirp_ent = readdir(dirp))) {
if (dirp_ent->d_name[0] == '.' &&
(strlen(dirp_ent->d_name) == 1 ||
(strlen(dirp_ent->d_name) == 2 &&
dirp_ent->d_name[1] == '.')
)
)
continue;
char rfile_line[1024];
struct stat st;
char *filename = malloc(sizeof(path) + sizeof(dirp_ent->d_name) + 2);
snprintf(
filename,
sizeof(path) + sizeof(dirp_ent->d_name) + 2,
"%s/%s",
path,
dirp_ent->d_name
);
stat(filename, &st);
if (st.st_mode) {
char *newfile = malloc(sizeof(dest) + sizeof(dirp_ent->d_name) + 2);
snprintf(
newfile,
sizeof(dest) + sizeof(dirp_ent->d_name) + 2,
"%s/%s",
dest,
dirp_ent->d_name
);
if ((st.st_mode & S_IFDIR) != 0) {
mkdir(newfile, st.st_mode);
cpdir(filename, newfile);
continue;
}
FILE *rfile = fopen(dirp_ent->d_name, "r");
FILE *wfile = fopen(newfile, "w+");
if (!rfile || !wfile) {
continue;
}
while (1) {
size_t ret = fread(rfile_line, 1, 1024, rfile);
if (ret != sizeof(rfile_line) / sizeof(rfile_line[0]) && ferror(rfile)) {
fprintf(stderr, "file read failed: %zu\n", ret);
break;
}
if (feof(rfile)) {
fclose(rfile);
fclose(wfile);
break;
}
size_t write = fwrite(rfile_line, 1, ret, wfile);
if (write != sizeof(rfile_line) / sizeof(rfile_line[0])) {
fprintf(stderr, "file write failed: %zu\n", ret);
break;
}
free(newfile);
if (feof(rfile)) {
fclose(rfile);
fclose(wfile);
break;
}
}
}
free(filename);
}
}
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