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fix errno for posix_openpt with no free ptys available

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linux fails the open with ENOSPC, but POSIX mandates EAGAIN.
This commit is contained in:
Rich Felker 2019-10-22 10:22:22 -04:00
parent 9b2921bea1
commit 4fd0f20560
1 changed files with 3 additions and 1 deletions
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4
src/misc/pty.c
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@ -7,7 +7,9 @@
int posix_openpt(int flags)
{
return open("/dev/ptmx", flags);
int r = open("/dev/ptmx", flags);
if (r < 0 && errno == ENOSPC) errno = EAGAIN;
return r;
}
int grantpt(int fd)