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128fe1c6 | 1 | |
2 | /* | |
63be0a78 | 3 | * $Id: unlinkd_daemon.cc,v 1.2 2008/02/26 21:49:35 amosjeffries Exp $ |
128fe1c6 | 4 | * |
5 | * DEBUG: - Unlink Daemon | |
6 | * AUTHOR: Duane Wessels | |
7 | * | |
8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
9 | * ---------------------------------------------------------- | |
10 | * | |
11 | * Squid is the result of efforts by numerous individuals from | |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
19 | * | |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
26ac0430 | 24 | * |
128fe1c6 | 25 | * This program is distributed in the hope that it will be useful, |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
26ac0430 | 29 | * |
128fe1c6 | 30 | * You should have received a copy of the GNU General Public License |
31 | * along with this program; if not, write to the Free Software | |
32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
33 | * | |
34 | */ | |
35 | ||
36 | #define SQUID_HELPER 1 | |
37 | ||
38 | #include "squid.h" | |
39 | ||
63be0a78 | 40 | /** |
41 | \defgroup unlinkd unlinkd | |
42 | \ingroup ExternalPrograms | |
43 | \par | |
44 | The unlink(2) system call can cause a process to block | |
45 | for a significant amount of time. Therefore we do not want | |
46 | to make unlink() calls from Squid. Instead we pass them | |
47 | to this external process. | |
48 | */ | |
128fe1c6 | 49 | |
63be0a78 | 50 | /// \ingroup unlinkd |
128fe1c6 | 51 | #define UNLINK_BUF_LEN 1024 |
52 | ||
63be0a78 | 53 | /** |
54 | \ingroup unlinkd | |
55 | \par This is the unlinkd external process. | |
56 | * | |
57 | \par | |
58 | * unlinkd receives the full path of any files to be removed | |
59 | * from stdin, each on its own line. | |
60 | * | |
61 | \par | |
62 | * The results for each file are printed to stdout in the order | |
63 | * they were received | |
64 | * | |
65 | \param argc Ignored. | |
66 | \param argv Ignored. | |
67 | \retval ERR An error occured removing the file. | |
68 | \retval OK The file has been removed. | |
69 | */ | |
128fe1c6 | 70 | int |
71 | main(int argc, char *argv[]) | |
72 | { | |
73 | char buf[UNLINK_BUF_LEN]; | |
74 | char *t; | |
75 | int x; | |
76 | setbuf(stdin, NULL); | |
77 | setbuf(stdout, NULL); | |
78 | close(2); | |
79 | open(_PATH_DEVNULL, O_RDWR); | |
80 | ||
81 | while (fgets(buf, UNLINK_BUF_LEN, stdin)) { | |
82 | if ((t = strchr(buf, '\n'))) | |
83 | *t = '\0'; | |
84 | x = unlink(buf); | |
85 | if (x < 0) | |
86 | printf("ERR\n"); | |
87 | else | |
88 | printf("OK\n"); | |
89 | } | |
90 | ||
91 | exit(0); | |
92 | } |