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#include <stdio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ftw.h>
#include <unistd.h>
#include "fetch_pwd.h"
#include "vars.h"
static const char *pwd_dst;
static int copy_entry(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf) {
(void)ftwbuf;
const char *rel = fpath;
if (rel[0] == '.' && rel[1] == '/') rel += 2;
if (rel[0] == '\0') return 0;
char dst[MAX_PATH_LEN];
snprintf(dst, sizeof(dst), "%s/%s", pwd_dst, rel);
if (typeflag == FTW_D) {
mkdir(dst, 0755);
} else if (typeflag == FTW_F) {
int src_fd = open(fpath, O_RDONLY);
if (src_fd < 0) return -1;
int dst_fd = open(dst, O_WRONLY | O_CREAT | O_TRUNC, sb->st_mode & 07777);
if (dst_fd < 0) { close(src_fd); return -1; }
char buf[8192];
ssize_t n;
while ((n = read(src_fd, buf, sizeof(buf))) > 0) {
ssize_t written = 0;
while (written < n) {
ssize_t ret = write(dst_fd, buf + written, n - written);
if (ret < 0) { close(src_fd); close(dst_fd); return -1; }
written += ret;
}
}
close(src_fd);
close(dst_fd);
}
return 0;
}
void fetch_pwd(Pkg pkg) {
pwd_dst = pkg.src;
nftw(".", copy_entry, 64, FTW_PHYS);
}
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