]>
Commit | Line | Data |
---|---|---|
128fe1c6 | 1 | /* |
b8ae064d | 2 | * Copyright (C) 1996-2023 The Squid Software Foundation and contributors |
128fe1c6 | 3 | * |
bbc27441 AJ |
4 | * Squid software is distributed under GPLv2+ license and includes |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
128fe1c6 | 7 | */ |
8 | ||
bbc27441 AJ |
9 | /* DEBUG: section -- Unlink Daemon */ |
10 | ||
128fe1c6 | 11 | #define SQUID_HELPER 1 |
12 | ||
f7f3304a | 13 | #include "squid.h" |
25f98340 | 14 | |
ee74db84 FC |
15 | #include <iostream> |
16 | #include <cstdio> | |
25f98340 AJ |
17 | #if HAVE_PATHS_H |
18 | #include <paths.h> | |
19 | #endif | |
128fe1c6 | 20 | |
63be0a78 | 21 | /** |
22 | \defgroup unlinkd unlinkd | |
23 | \ingroup ExternalPrograms | |
24 | \par | |
25 | The unlink(2) system call can cause a process to block | |
26 | for a significant amount of time. Therefore we do not want | |
27 | to make unlink() calls from Squid. Instead we pass them | |
28 | to this external process. | |
29 | */ | |
128fe1c6 | 30 | |
63be0a78 | 31 | /// \ingroup unlinkd |
128fe1c6 | 32 | #define UNLINK_BUF_LEN 1024 |
33 | ||
63be0a78 | 34 | /** |
35 | \ingroup unlinkd | |
36 | \par This is the unlinkd external process. | |
37 | * | |
38 | \par | |
39 | * unlinkd receives the full path of any files to be removed | |
40 | * from stdin, each on its own line. | |
41 | * | |
42 | \par | |
43 | * The results for each file are printed to stdout in the order | |
44 | * they were received | |
45 | * | |
46 | \param argc Ignored. | |
47 | \param argv Ignored. | |
61beade2 | 48 | \retval ERR An error occurred removing the file. |
63be0a78 | 49 | \retval OK The file has been removed. |
50 | */ | |
128fe1c6 | 51 | int |
ced8def3 | 52 | main(int, char *[]) |
128fe1c6 | 53 | { |
ee74db84 | 54 | std::string sbuf; |
128fe1c6 | 55 | close(2); |
8f084aaf AJ |
56 | if (open(_PATH_DEVNULL, O_RDWR) < 0) { |
57 | ; // the irony of having to close(2) earlier is that we cannot report this failure. | |
58 | } | |
ee74db84 FC |
59 | while (getline(std::cin, sbuf)) { |
60 | // tailing newline is removed by getline | |
61 | const int rv = remove(sbuf.c_str()); | |
62 | if (rv < 0) | |
63 | std::cout << "ERR" << std::endl; // endl flushes | |
128fe1c6 | 64 | else |
ee74db84 | 65 | std::cout << "OK" << std::endl; |
128fe1c6 | 66 | } |
67 | ||
24885773 | 68 | return EXIT_SUCCESS; |
128fe1c6 | 69 | } |
f53969cc | 70 |