From: Junio C Hamano <gitster@pobox.com>
To: git@vger.kernel.org
Cc: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Subject: [PATCH v3 06/13] wrapper.c: add and use warn_on_fopen_errors()
Date: Fri, 26 May 2017 12:35:03 +0900 [thread overview]
Message-ID: <20170526033510.1793-7-gitster@pobox.com> (raw)
In-Reply-To: <20170526033510.1793-1-gitster@pobox.com>
From: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
In many places, Git warns about an inaccessible file after a fopen()
failed. To discern these cases from other cases where we want to warn
about inaccessible files, introduce a new helper specifically to test
whether fopen() failed because the current user lacks the permission to
open file in question.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
config.c | 3 +++
dir.c | 6 +++---
git-compat-util.h | 2 ++
t/t1308-config-set.sh | 3 ++-
wrapper.c | 10 ++++++++++
5 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/config.c b/config.c
index b4a3205da3..2894fbb6d0 100644
--- a/config.c
+++ b/config.c
@@ -2640,6 +2640,9 @@ int git_config_rename_section_in_file(const char *config_filename,
}
if (!(config_file = fopen(config_filename, "rb"))) {
+ ret = warn_on_fopen_errors(config_filename);
+ if (ret)
+ goto out;
/* no config file means nothing to rename, no error */
goto commit_and_out;
}
diff --git a/dir.c b/dir.c
index f451bfa48c..be616e884e 100644
--- a/dir.c
+++ b/dir.c
@@ -745,9 +745,9 @@ static int add_excludes(const char *fname, const char *base, int baselen,
fd = open(fname, O_RDONLY);
if (fd < 0 || fstat(fd, &st) < 0) {
- if (errno != ENOENT)
- warn_on_inaccessible(fname);
- if (0 <= fd)
+ if (fd < 0)
+ warn_on_fopen_errors(fname);
+ else
close(fd);
if (!check_index ||
(buf = read_skip_worktree_file_from_index(fname, &size, sha1_stat)) == NULL)
diff --git a/git-compat-util.h b/git-compat-util.h
index 6be55cf8b3..eb5c18c7fd 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -1101,6 +1101,8 @@ int access_or_die(const char *path, int mode, unsigned flag);
/* Warn on an inaccessible file that ought to be accessible */
void warn_on_inaccessible(const char *path);
+/* Warn on an inaccessible file if errno indicates this is an error */
+int warn_on_fopen_errors(const char *path);
#ifdef GMTIME_UNRELIABLE_ERRORS
struct tm *git_gmtime(const time_t *);
diff --git a/t/t1308-config-set.sh b/t/t1308-config-set.sh
index 72d5f1f931..df92fdcd40 100755
--- a/t/t1308-config-set.sh
+++ b/t/t1308-config-set.sh
@@ -195,7 +195,8 @@ test_expect_success POSIXPERM,SANITY 'proper error on non-accessible files' '
chmod -r .git/config &&
test_when_finished "chmod +r .git/config" &&
echo "Error (-1) reading configuration file .git/config." >expect &&
- test_expect_code 2 test-config configset_get_value foo.bar .git/config 2>actual &&
+ test_expect_code 2 test-config configset_get_value foo.bar .git/config 2>output &&
+ grep "^Error" output >actual &&
test_cmp expect actual
'
diff --git a/wrapper.c b/wrapper.c
index d837417709..20c25e7e65 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -418,6 +418,16 @@ FILE *fopen_for_writing(const char *path)
return ret;
}
+int warn_on_fopen_errors(const char *path)
+{
+ if (errno != ENOENT && errno != ENOTDIR) {
+ warn_on_inaccessible(path);
+ return -1;
+ }
+
+ return 0;
+}
+
int xmkstemp(char *template)
{
int fd;
--
2.13.0-491-g71cfeddc25
next prev parent reply other threads:[~2017-05-26 3:35 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-22 6:11 What's cooking in git.git (May 2017, #06; Mon, 22) Junio C Hamano
2017-05-22 17:42 ` Jonathan Nieder
2017-05-23 3:33 ` Junio C Hamano
2017-05-23 5:02 ` Jonathan Nieder
2017-05-23 5:14 ` Junio C Hamano
2017-05-25 12:58 ` Duy Nguyen
2017-05-26 2:56 ` Junio C Hamano
2017-05-26 3:34 ` [PATCH v3 00/13] reporting unexpected errors after (f)open Junio C Hamano
2017-05-26 3:34 ` [PATCH v3 01/13] git_fopen: fix a sparse 'not declared' warning Junio C Hamano
2017-05-26 3:34 ` [PATCH v3 02/13] use xfopen() in more places Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 03/13] clone: use xfopen() instead of fopen() Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 04/13] config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSD Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 05/13] config.mak.uname: set FREAD_READS_DIRECTORIES for Darwin, too Junio C Hamano
2017-05-30 18:51 ` Stefan Beller
2017-05-30 23:14 ` Junio C Hamano
2017-05-30 23:32 ` Stefan Beller
2017-05-26 3:35 ` Junio C Hamano [this message]
2017-05-26 3:35 ` [PATCH v3 07/13] wrapper.c: add and use fopen_or_warn() Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 08/13] wrapper.c: make warn_on_inaccessible() static Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 09/13] print errno when reporting a system call error Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 10/13] rerere.c: move error_errno() closer to the source system call Junio C Hamano
2017-05-30 18:58 ` Stefan Beller
2017-05-26 3:35 ` [PATCH v3 11/13] log: fix memory leak in open_next_file() Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 12/13] wrapper: factor out is_missing_file_error() Junio C Hamano
2017-05-30 0:31 ` [PATCH 1/2] compat-util: is_missing_file_error() Junio C Hamano
2017-05-30 0:32 ` [PATCH 2/2] treewide: use is_missing_file_error() where ENOENT and ENOTDIR are checked Junio C Hamano
2017-05-26 3:35 ` [PATCH v3 13/13] is_missing_file_error(): work around EINVAL on Windows Junio C Hamano
2017-05-29 20:25 ` [PATCH 1/2] mingw: verify that paths are not mistaken for remote nicknames Johannes Sixt
2017-05-29 20:27 ` [PATCH 2/2] mingw_fopen: report ENOENT for invalid file names Johannes Sixt
2017-05-29 20:40 ` [PATCH 1/2] mingw: verify that paths are not mistaken for remote nicknames Ævar Arnfjörð Bjarmason
2017-05-29 21:02 ` Johannes Sixt
2017-05-29 21:59 ` Ramsay Jones
2017-05-30 0:03 ` Junio C Hamano
2017-05-30 13:40 ` Ramsay Jones
2017-05-29 23:53 ` Junio C Hamano
2017-05-30 4:46 ` Junio C Hamano
2017-05-30 20:35 ` Johannes Sixt
2017-05-30 0:29 ` Junio C Hamano
2017-05-30 19:13 ` [PATCH v3 13/13] is_missing_file_error(): work around EINVAL on Windows Stefan Beller
2017-05-30 23:17 ` Junio C Hamano
2017-05-30 23:32 ` Stefan Beller
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