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Plug a hole in pledge()

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Günther Noack points out that O_RDONLY|O_TRUNC will modify a file.
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Justine Tunney 2022-07-24 23:40:49 -07:00
parent 3443039f34
commit e98514cdb7
6 changed files with 275 additions and 167 deletions
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2
libc/sysv/consts.sh
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@ -196,7 +196,7 @@ syscon open O_SEQUENTIAL 0 0 0 0 0 0x40000000 # kNtFileFlagSequen
syscon open O_COMPRESSED 0 0 0 0 0 0x20000000 # kNtFileAttributeCompressed [SYNC libc/calls/open-nt.c]
syscon open O_INDEXED 0 0 0 0 0 0x10000000 # !kNtFileAttributeNotContentIndexed [SYNC libc/calls/open-nt.c]
syscon open O_CLOEXEC 0x00080000 0x01000000 0x00100000 0x00010000 0x00400000 0x00080000 # NT faked as Linux [SYNC libc/calls/open-nt.c]
syscon open O_TMPFILE 0x00410000 0 0 0 0 0x00410000 # Linux 3.11+ (c. 2013) & kNtFileAttributeTemporary|kNtFileFlagDeleteOnClose [SYNC libc/calls/open-nt.c]
syscon open O_TMPFILE 0x00410000 0 0 0 0 0x00410000 # Linux 3.11+ (c. 2013) __O_TMPFILE | O_DIRECTORY; kNtFileAttributeTemporary|kNtFileFlagDeleteOnClose [SYNC libc/calls/open-nt.c]
syscon open O_SPARSE 0 0 0 0 0 0 # wut
syscon open O_NONBLOCK 0x00000800 0x00000004 0x00000004 0x00000004 0x00000004 0x00000800 # bsd consensus
syscon open O_ASYNC 0x00002000 0x00000040 0x00000040 0x00000040 0x00000040 0 # bsd consensus