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From 98d1fe84e1eac91563bff326539465cd34e971c0 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Sat, 7 Feb 2015 11:35:37 -0500
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Subject: [PATCH] systemctl: support auditd.service better
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We would print the filename header before trying to open the file. But since
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the header was printed to stdout, and the error to stderr, the error would appear
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on the terminal before the header. It is cleaner to open the file first, then
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and only then print the header.
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Also exit on first error. We shouldn't report success if we were unable to open
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a file.
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(cherry picked from commit 8527b07be1c5211b50a1a6496585952857a25c73)
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---
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src/systemctl/systemctl.c | 46 +++++++++++++++++++++++-----------------------
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1 file changed, 23 insertions(+), 23 deletions(-)
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diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
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index 3da4d3d..4ec0cff 100644
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--- a/src/systemctl/systemctl.c
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+++ b/src/systemctl/systemctl.c
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@@ -4555,6 +4555,23 @@ static int init_home_and_lookup_paths(char **user_home, char **user_runtime, Loo
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return 0;
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}
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+static int cat_file(const char *filename, bool newline) {
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+ _cleanup_close_ int fd;
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+
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+ fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOCTTY);
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+ if (fd < 0)
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+ return -errno;
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+
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+ printf("%s%s# %s%s\n",
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+ newline ? "\n" : "",
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+ ansi_highlight_blue(),
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+ filename,
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+ ansi_highlight_off());
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+ fflush(stdout);
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+
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+ return copy_bytes(fd, STDOUT_FILENO, (off_t) -1, false);
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+}
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+
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static int cat(sd_bus *bus, char **args) {
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_cleanup_free_ char *user_home = NULL;
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_cleanup_free_ char *user_runtime = NULL;
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@@ -4600,32 +4617,15 @@ static int cat(sd_bus *bus, char **args) {
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puts("");
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if (fragment_path) {
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- printf("%s# %s%s\n",
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- ansi_highlight_blue(),
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- fragment_path,
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- ansi_highlight_off());
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- fflush(stdout);
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-
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- r = copy_file_fd(fragment_path, STDOUT_FILENO, false);
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- if (r < 0) {
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- log_warning_errno(r, "Failed to cat %s: %m", fragment_path);
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- continue;
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- }
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+ r = cat_file(fragment_path, false);
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+ if (r < 0)
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+ return log_warning_errno(r, "Failed to cat %s: %m", fragment_path);
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}
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STRV_FOREACH(path, dropin_paths) {
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- printf("%s%s# %s%s\n",
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- isempty(fragment_path) && path == dropin_paths ? "" : "\n",
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- ansi_highlight_blue(),
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- *path,
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- ansi_highlight_off());
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- fflush(stdout);
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-
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- r = copy_file_fd(*path, STDOUT_FILENO, false);
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- if (r < 0) {
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- log_warning_errno(r, "Failed to cat %s: %m", *path);
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- continue;
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- }
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+ r = cat_file(*path, path == dropin_paths);
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+ if (r < 0)
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+ return log_warning_errno(r, "Failed to cat %s: %m", *path);
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}
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}
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