| 1 | /* |
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| 2 | * Copyright (c) 2008 BBN Technologies Corp. All rights reserved. |
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| 3 | * |
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| 4 | * Redistribution and use in source and binary forms, with or without |
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| 5 | * modification, are permitted provided that the following conditions |
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| 6 | * are met: |
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| 7 | * 1. Redistributions of source code must retain the above copyright |
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| 8 | * notice, this list of conditions and the following disclaimer. |
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| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer in the |
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| 11 | * documentation and/or other materials provided with the distribution. |
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| 12 | * 3. Neither the name of BBN Technologies nor the names of its contributors |
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| 13 | * may be used to endorse or promote products derived from this software |
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| 14 | * without specific prior written permission. |
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| 15 | * |
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| 16 | * THIS SOFTWARE IS PROVIDED BY BBN TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' |
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| 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL BBN TECHNOLOGIES OR CONTRIBUTORS BE |
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| 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 26 | * POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |
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| 29 | #ifndef SVNSTSW_FSO_IS_CHANGEABLE_H |
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| 30 | #define SVNSTSW_FSO_IS_CHANGEABLE_H |
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| 31 | |
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| 32 | #ifdef __cplusplus |
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| 33 | extern "C" { |
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| 34 | #endif |
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| 35 | |
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| 36 | /** |
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| 37 | * @ingroup libsvnstswpub |
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| 38 | * |
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| 39 | * @brief Tests if the file or directory referred to by @a path is |
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| 40 | * changeable. |
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| 41 | * |
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| 42 | * A file or directory is considered changeable if it can be directly |
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| 43 | * modified or if any component of the path can be renamed. If any |
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| 44 | * component of the path refers to a symbolic link, the target is also |
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| 45 | * tested. Permissions are tested against the real user and group |
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| 46 | * IDs, not the effective IDs. |
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| 47 | * |
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| 48 | * This function is designed to help determine whether a file is safe |
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| 49 | * to exec from a setuid/setgid binary. If this function returns |
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| 50 | * true, the user may be able to start a shell as the effective user. |
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| 51 | * |
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| 52 | * This function is thread-safe if the user's C POSIX library is |
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| 53 | * thread-safe. |
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| 54 | * |
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| 55 | * Defined in @p svnstsw/fso_is_changeable.h which is included in @p |
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| 56 | * svnstsw/svnstsw.h |
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| 57 | * |
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| 58 | * @param path Null-terminated string containing the path to the file |
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| 59 | * or directory to test. |
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| 60 | * |
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| 61 | * @return On success, returns 1 if the user (real user and group IDs) |
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| 62 | * can change the file or directory referred to by @a path, or 0 if |
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| 63 | * the file or directory can not be changed. On error, returns 1 and |
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| 64 | * sets @a errno. Error conditions and @a errno values are described |
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| 65 | * in the specifications for stat(), access(), snprintf(), lstat(), |
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| 66 | * readlink(), and getcwd(). |
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| 67 | */ |
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| 68 | _Bool svnstsw_fso_is_changeable(const char* path); |
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| 69 | |
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| 70 | #ifdef __cplusplus |
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| 71 | } |
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| 72 | #endif |
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| 73 | |
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| 74 | #endif |
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