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libc_pipe: ignore some flags in 'fcntl()'

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Ignore file access mode and file creation flags for the F_SETFL command.

Fixes #2136
This commit is contained in:
Christian Prochaska 2016-10-17 18:17:50 +02:00 committed by Christian Helmuth
parent 964239aa7a
commit 44d4bf7a1b
1 changed files with 8 additions and 2 deletions
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10
repos/libports/src/lib/libc_pipe/plugin.cc
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@ -246,12 +246,18 @@ namespace Libc_pipe {
case F_SETFL: case F_SETFL:
{ {
constexpr long supported_flags = O_NONBLOCK; /*
* O_RDONLY, O_WRONLY, O_RDWR, O_CREAT, O_TRUNC, O_EXCL
* are ignored
*/
constexpr long supported_flags = O_NONBLOCK
| O_RDONLY | O_WRONLY | O_RDWR
| O_CREAT | O_TRUNC | O_EXCL;
context(pipefdo)->set_nonblock(arg & O_NONBLOCK); context(pipefdo)->set_nonblock(arg & O_NONBLOCK);
if ((arg & ~supported_flags) == 0) if ((arg & ~supported_flags) == 0)
break; return 0;
/* unsupported flags present */ /* unsupported flags present */