Cyril Hrubis | 52006c9 | 2017-01-02 14:58:31 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz> |
| 3 | * |
| 4 | * This program is free software: you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation, either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | |
| 18 | #define _GNU_SOURCE |
| 19 | #include <unistd.h> |
Xiong Zhou | f028fef | 2017-08-16 15:15:35 +0800 | [diff] [blame] | 20 | #include <errno.h> |
| 21 | #include "config.h" |
| 22 | #ifdef HAVE_SYS_FANOTIFY_H |
| 23 | # include <sys/fanotify.h> |
| 24 | #endif |
Cyril Hrubis | 52006c9 | 2017-01-02 14:58:31 +0100 | [diff] [blame] | 25 | #define TST_NO_DEFAULT_MAIN |
| 26 | #include "tst_test.h" |
| 27 | #include "tst_safe_macros.h" |
Richard Palethorpe | 35799a9 | 2017-09-11 13:50:52 +0200 | [diff] [blame] | 28 | #include "lapi/personality.h" |
Cyril Hrubis | 52006c9 | 2017-01-02 14:58:31 +0100 | [diff] [blame] | 29 | |
| 30 | int safe_setpgid(const char *file, const int lineno, pid_t pid, pid_t pgid) |
| 31 | { |
| 32 | int rval; |
| 33 | |
| 34 | rval = setpgid(pid, pgid); |
| 35 | if (rval) { |
| 36 | tst_brk(TBROK | TERRNO, |
| 37 | "%s:%d: setpgid(%i, %i) failed", |
| 38 | file, lineno, pid, pgid); |
| 39 | } |
| 40 | |
| 41 | return rval; |
| 42 | } |
| 43 | |
| 44 | pid_t safe_getpgid(const char *file, const int lineno, pid_t pid) |
| 45 | { |
| 46 | pid_t pgid; |
| 47 | |
| 48 | pgid = getpgid(pid); |
| 49 | if (pgid == -1) { |
| 50 | tst_brk(TBROK | TERRNO, |
| 51 | "%s:%d: getpgid(%i) failed", file, lineno, pid); |
| 52 | } |
| 53 | |
| 54 | return pgid; |
| 55 | } |
Xiong Zhou | f028fef | 2017-08-16 15:15:35 +0800 | [diff] [blame] | 56 | |
| 57 | int safe_fanotify_init(const char *file, const int lineno, |
| 58 | unsigned int flags, unsigned int event_f_flags) |
| 59 | { |
| 60 | int rval; |
| 61 | |
| 62 | #ifdef HAVE_SYS_FANOTIFY_H |
| 63 | rval = fanotify_init(flags, event_f_flags); |
| 64 | |
| 65 | if (rval == -1) { |
| 66 | if (errno == ENOSYS) { |
| 67 | tst_brk(TCONF, |
| 68 | "fanotify is not configured in this kernel."); |
| 69 | } |
| 70 | tst_brk(TBROK | TERRNO, |
| 71 | "%s:%d: fanotify_init() failed", file, lineno); |
| 72 | } |
| 73 | #else |
| 74 | tst_brk(TCONF, "Header <sys/fanotify.h> is not present"); |
| 75 | #endif /* HAVE_SYS_FANOTIFY_H */ |
| 76 | |
| 77 | return rval; |
| 78 | } |
Richard Palethorpe | 35799a9 | 2017-09-11 13:50:52 +0200 | [diff] [blame] | 79 | |
| 80 | int safe_personality(const char *filename, unsigned int lineno, |
| 81 | unsigned long persona) |
| 82 | { |
| 83 | int prev_persona = personality(persona); |
| 84 | |
| 85 | if (prev_persona < 0) { |
| 86 | tst_brk_(filename, lineno, TBROK | TERRNO, |
| 87 | "persona(%ld) failed", persona); |
| 88 | } |
| 89 | |
| 90 | return prev_persona; |
| 91 | } |