mirror of
https://gitlab.alpinelinux.org/alpine/abuild.git
synced 2024-12-24 16:02:23 +00:00
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/*
|
|
* abuild-rmtemp
|
|
* Copyright (c) 2017 Kaarle Ritvanen
|
|
* Distributed under GPL-2.0-only
|
|
*/
|
|
|
|
#define _XOPEN_SOURCE 700
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <ftw.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
#define PREFIX "/var/tmp/abuild."
|
|
|
|
static void fail() {
|
|
errx(1, "%s", strerror(errno));
|
|
}
|
|
|
|
static int handler(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf) {
|
|
return remove(fpath);
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
if (argc < 2) return 0;
|
|
|
|
if (getuid()) {
|
|
argv[0] = "-abuild-rmtemp";
|
|
execv("/usr/bin/abuild-sudo", argv);
|
|
}
|
|
|
|
if (strncmp(argv[1], PREFIX, strlen(PREFIX)) || \
|
|
strchr(argv[1] + strlen(PREFIX), '/'))
|
|
errx(1, "Invalid path: %s", argv[1]);
|
|
|
|
struct stat s;
|
|
if (lstat(argv[1], &s)) fail();
|
|
struct passwd *p = getpwnam(getenv("USER"));
|
|
if (!p) errx(1, "Incorrect user");
|
|
if (s.st_uid != p->pw_uid) errx(1, "Permission denied");
|
|
|
|
if (nftw(argv[1], handler, 512, FTW_DEPTH|FTW_PHYS)) fail();
|
|
|
|
return 0;
|
|
}
|