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(feed_subshell): on IBM i, read(1) can return 0 for a non-closed fd.

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Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
This commit is contained in:
Jesse R. Gorzinski 2018-09-04 11:57:11 +03:00 committed by Andrew Borodin
parent 79e5cdad2f
commit 4da6ea8db3
2 changed files with 10 additions and 0 deletions
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5
configure.ac
View File

@ -321,6 +321,11 @@ case $host_os in
;; ;;
esac esac
case $host_os in
*os400)
AC_DEFINE([PTY_ZEROREAD], [1], [read(1) can return 0 for a non-closed fd])
esac
dnl Check linux/fs.h for FICLONE to support BTRFS's file clone operation dnl Check linux/fs.h for FICLONE to support BTRFS's file clone operation
case $host_os in case $host_os in
linux*) linux*)

5
src/subshell/common.c
View File

@ -558,9 +558,14 @@ feed_subshell (int how, gboolean fail_on_error)
if (bytes <= 0) if (bytes <= 0)
{ {
#ifdef PTY_ZEROREAD
/* On IBM i, read(1) can return 0 for a non-closed fd */
continue;
#else
tcsetattr (STDOUT_FILENO, TCSANOW, &shell_mode); tcsetattr (STDOUT_FILENO, TCSANOW, &shell_mode);
fprintf (stderr, "read (subshell_pty...): %s\r\n", unix_error_string (errno)); fprintf (stderr, "read (subshell_pty...): %s\r\n", unix_error_string (errno));
exit (EXIT_FAILURE); exit (EXIT_FAILURE);
#endif
} }
if (how == VISIBLY) if (how == VISIBLY)