112 lines
3.1 KiB
Diff
112 lines
3.1 KiB
Diff
From 3dfcac940930a8aa6779f5debea6ea6357372419 Mon Sep 17 00:00:00 2001
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From: Daniel Dragan <bulk88@hotmail.com>
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Date: Sun, 16 Aug 2015 04:30:23 -0400
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Subject: [PATCH] fix do dir returning no $!
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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do()ing a directory was returning false/empty string in $!, which isn't
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an error, yet documentation says $! should have the error code in it.
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Fix this by returning EISDIR for dirs, and EINVAL for block devices.
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[perl #125774]
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Remove "errno = 0" and comment added in b2da7ead68, since now there is no
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scenario where errno is uninitialized, since the dir and block device
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failure branches now set errno, where previously they didn't.
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Petr Písař: Ported to 5.26.1.
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Signed-off-by: Petr Písař <ppisar@redhat.com>
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---
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pp_ctl.c | 25 +++++++++++++++++--------
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t/op/do.t | 14 +++++++++++++-
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2 files changed, 30 insertions(+), 9 deletions(-)
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diff --git a/pp_ctl.c b/pp_ctl.c
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index e24d7b6..f136f91 100644
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--- a/pp_ctl.c
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+++ b/pp_ctl.c
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@@ -3534,15 +3534,22 @@ S_check_type_and_open(pTHX_ SV *name)
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errno EACCES, so only do a stat to separate a dir from a real EACCES
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caused by user perms */
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#ifndef WIN32
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- /* we use the value of errno later to see how stat() or open() failed.
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- * We don't want it set if the stat succeeded but we still failed,
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- * such as if the name exists, but is a directory */
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- errno = 0;
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-
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st_rc = PerlLIO_stat(p, &st);
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- if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) {
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+ if (st_rc < 0)
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return NULL;
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+ else {
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+ int eno;
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+ if(S_ISBLK(st.st_mode)) {
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+ eno = EINVAL;
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+ goto not_file;
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+ }
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+ else if(S_ISDIR(st.st_mode)) {
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+ eno = EISDIR;
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+ not_file:
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+ errno = eno;
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+ return NULL;
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+ }
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}
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#endif
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@@ -3554,8 +3561,10 @@ S_check_type_and_open(pTHX_ SV *name)
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int eno;
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st_rc = PerlLIO_stat(p, &st);
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if (st_rc >= 0) {
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- if(S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode))
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- eno = 0;
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+ if(S_ISDIR(st.st_mode))
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+ eno = EISDIR;
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+ else if(S_ISBLK(st.st_mode))
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+ eno = EINVAL;
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else
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eno = EACCES;
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errno = eno;
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diff --git a/t/op/do.t b/t/op/do.t
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index 78d8800..1c54f0b 100644
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--- a/t/op/do.t
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+++ b/t/op/do.t
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@@ -7,6 +7,7 @@ BEGIN {
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}
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use strict;
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no warnings 'void';
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+use Errno qw(ENOENT EISDIR);
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my $called;
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my $result = do{ ++$called; 'value';};
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@@ -247,7 +248,7 @@ SKIP: {
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my $saved_errno = $!;
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ok(!$rv, "do returns false on io errror");
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ok(!$saved_error, "\$\@ not set on io error");
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- ok($saved_errno, "\$! set on io error");
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+ ok($saved_errno == ENOENT, "\$! is ENOENT for nonexistent file");
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}
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# do subname should not be do "subname"
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@@ -305,4 +306,15 @@ SKIP: {
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}
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+# do file $!s must be correct
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+{
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+ local @INC = ('.'); #want EISDIR not ENOENT
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+ my $rv = do 'op'; # /t/op dir
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+ my $saved_error = $@;
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+ my $saved_errno = $!+0;
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+ ok(!$rv, "do dir returns false");
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+ ok(!$saved_error, "\$\@ is false on do dir");
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+ ok($saved_errno == EISDIR, "\$! is EISDIR on do dir");
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+}
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+
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done_testing();
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--
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2.13.6
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