75 lines
2.4 KiB
Diff
75 lines
2.4 KiB
Diff
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This is a backport of the fix itself.
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From e387009c78fa08aaebf5192a3ceeb04dcfc7781d Mon Sep 17 00:00:00 2001
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From: Stanislav Brabec <sbrabec@suse.com>
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Date: Mon, 13 Jul 2015 22:59:17 +0200
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Subject: [PATCH] sed: fix --follow-symlinks to work when reading stdin
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When reading from stdin, use of --follow-symlinks would cause failure:
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$ echo abc | sed --follow-symlinks s/a/d/
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sed: cannot stat -: No such file or directory
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* sed/execute.c (open_next_file): Set input->in_file_name earlier,
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so we can rearrange logic to avoid calling follow_symlink("-").
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* testsuite/follow-symlinks-stdin.sh: New file.
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* testsuite/Makefile.am (T): Add it.
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* NEWS (Bug fixes): Mention it.
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Bug introduced by commit v4.2.1-13-g84066bf.
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http://bugs.gnu.org/20795
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---
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NEWS | 3 +++
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sed/execute.c | 24 +++++++++++++-----------
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testsuite/Makefile.am | 1 +
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testsuite/follow-symlinks-stdin.sh | 29 +++++++++++++++++++++++++++++
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4 files changed, 46 insertions(+), 11 deletions(-)
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create mode 100755 testsuite/follow-symlinks-stdin.sh
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Index: sed-4.2.2/sed/execute.c
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===================================================================
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--- sed-4.2.2.orig/sed/execute.c
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+++ sed-4.2.2/sed/execute.c
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@@ -580,6 +580,7 @@ open_next_file(name, input)
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{
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buffer.length = 0;
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+ input->in_file_name = name;
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if (name[0] == '-' && name[1] == '\0')
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{
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if (in_place_extension)
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@@ -592,22 +593,23 @@ open_next_file(name, input)
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input->fp = stdin;
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#endif
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}
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- else if ( ! (input->fp = ck_fopen(name, read_mode, false)) )
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+ else
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{
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- const char *ptr = strerror(errno);
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- fprintf(stderr, _("%s: can't read %s: %s\n"), myname, name, ptr);
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- input->read_fn = read_always_fail; /* a redundancy */
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- ++input->bad_count;
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- return;
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+ if (follow_symlinks)
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+ input->in_file_name = follow_symlink (name);
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+
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+ if ( ! (input->fp = ck_fopen (name, read_mode, false)) )
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+ {
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+ const char *ptr = strerror (errno);
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+ fprintf (stderr, _("%s: can't read %s: %s\n"), myname, name, ptr);
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+ input->read_fn = read_always_fail; /* a redundancy */
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+ ++input->bad_count;
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+ return;
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+ }
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}
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input->read_fn = read_file_line;
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- if (follow_symlinks)
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- input->in_file_name = follow_symlink (name);
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- else
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- input->in_file_name = name;
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-
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if (in_place_extension)
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{
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int input_fd;
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