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/*
* abuild-rmtemp
* Copyright (c) 2017 Kaarle Ritvanen
* Distributed under GPL-2
*/
#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)) fail();
return 0;
}
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