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util: split-out conf-file.[ch]

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This commit is contained in:
Kay Sievers 2012-05-07 18:55:45 +02:00
parent 7fdd367e6d
commit 2c21044f05
11 changed files with 190 additions and 121 deletions
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6
Makefile.am
View File

@ -547,6 +547,8 @@ libsystemd_shared_la_SOURCES = \
src/shared/ioprio.h \
src/shared/socket-util.c \
src/shared/socket-util.h \
src/shared/conf-files.c \
src/shared/conf-files.h \
src/shared/cgroup-util.c \
src/shared/cgroup-util.h \
src/shared/cgroup-show.c \
@ -564,10 +566,6 @@ libsystemd_shared_la_SOURCES = \
src/shared/spawn-polkit-agent.c \
src/shared/spawn-polkit-agent.h
libsystemd_shared_la_CFLAGS = \
$(AM_CFLAGS) \
$(DBUS_CFLAGS)
#-------------------------------------------------------------------------------
noinst_LTLIBRARIES += \
libsystemd-dbus.la

1
src/binfmt/binfmt.c
View File

@ -31,6 +31,7 @@
#include "hashmap.h"
#include "strv.h"
#include "util.h"
#include "conf-files.h"
static int delete_rule(const char *rule) {
char *x, *fn = NULL, *e;

1
src/modules-load/modules-load.c
View File

@ -31,6 +31,7 @@
#include "log.h"
#include "util.h"
#include "strv.h"
#include "conf-files.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wformat-nonliteral"

151
src/shared/conf-files.c Normal file
View File

@ -0,0 +1,151 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <assert.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/stat.h>
#include <dirent.h>
#include "macro.h"
#include "util.h"
#include "missing.h"
#include "log.h"
#include "strv.h"
#include "hashmap.h"
#include "conf-files.h"
static int files_add(Hashmap *h, const char *path, const char *suffix) {
DIR *dir;
struct dirent buffer, *de;
int r = 0;
dir = opendir(path);
if (!dir) {
if (errno == ENOENT)
return 0;
return -errno;
}
for (;;) {
int k;
char *p;
k = readdir_r(dir, &buffer, &de);
if (k != 0) {
r = -k;
goto finish;
}
if (!de)
break;
if (!dirent_is_file_with_suffix(de, suffix))
continue;
if (asprintf(&p, "%s/%s", path, de->d_name) < 0) {
r = -ENOMEM;
goto finish;
}
if (hashmap_put(h, file_name_from_path(p), p) <= 0) {
log_debug("Skip overridden file: %s.", p);
free(p);
}
}
finish:
closedir(dir);
return r;
}
static int base_cmp(const void *a, const void *b) {
const char *s1, *s2;
s1 = *(char * const *)a;
s2 = *(char * const *)b;
return strcmp(file_name_from_path(s1), file_name_from_path(s2));
}
int conf_files_list_strv(char ***strv, const char *suffix, const char **dirs) {
Hashmap *fh = NULL;
char **files = NULL;
const char **p;
int r = 0;
assert(dirs);
fh = hashmap_new(string_hash_func, string_compare_func);
if (!fh) {
r = -ENOMEM;
goto finish;
}
STRV_FOREACH(p, dirs) {
if (files_add(fh, *p, suffix) < 0) {
log_error("Failed to search for files.");
r = -EINVAL;
goto finish;
}
}
files = hashmap_get_strv(fh);
if (files == NULL) {
log_error("Failed to compose list of files.");
r = -ENOMEM;
goto finish;
}
qsort(files, hashmap_size(fh), sizeof(char *), base_cmp);
finish:
hashmap_free(fh);
*strv = files;
return r;
}
int conf_files_list(char ***strv, const char *suffix, const char *dir, ...) {
char **dirs = NULL;
va_list ap;
int r;
va_start(ap, dir);
dirs = strv_new_ap(dir, ap);
va_end(ap);
if (!dirs) {
r = -ENOMEM;
goto finish;
}
if (!strv_path_canonicalize(dirs)) {
r = -ENOMEM;
goto finish;
}
strv_uniq(dirs);
r = conf_files_list_strv(strv, suffix, (const char **)dirs);
finish:
strv_free(dirs);
return r;
}

31
src/shared/conf-files.h Normal file
View File

@ -0,0 +1,31 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#ifndef fooconffileshfoo
#define fooconffileshfoo
/***
This file is part of systemd.
Copyright 2010-2012 Lennart Poettering
Copyright 2010-2012 Kay Sievers
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "macro.h"
int conf_files_list(char ***strv, const char *suffix, const char *dir, ...);
int conf_files_list_strv(char ***strv, const char *suffix, const char **dirs);
#endif

1
src/shared/install.c
View File

@ -34,6 +34,7 @@
#include "unit-name.h"
#include "install.h"
#include "conf-parser.h"
#include "conf-files.h"
typedef struct {
char *name;

114
src/shared/util.c
View File

@ -4863,120 +4863,6 @@ int vt_disallocate(const char *name) {
return 0;
}
static int files_add(Hashmap *h, const char *path, const char *suffix) {
DIR *dir;
struct dirent buffer, *de;
int r = 0;
dir = opendir(path);
if (!dir) {
if (errno == ENOENT)
return 0;
return -errno;
}
for (;;) {
int k;
char *p;
k = readdir_r(dir, &buffer, &de);
if (k != 0) {
r = -k;
goto finish;
}
if (!de)
break;
if (!dirent_is_file_with_suffix(de, suffix))
continue;
if (asprintf(&p, "%s/%s", path, de->d_name) < 0) {
r = -ENOMEM;
goto finish;
}
if (hashmap_put(h, file_name_from_path(p), p) <= 0) {
log_debug("Skip overridden file: %s.", p);
free(p);
}
}
finish:
closedir(dir);
return r;
}
static int base_cmp(const void *a, const void *b) {
const char *s1, *s2;
s1 = *(char * const *)a;
s2 = *(char * const *)b;
return strcmp(file_name_from_path(s1), file_name_from_path(s2));
}
int conf_files_list_strv(char ***strv, const char *suffix, const char **dirs) {
Hashmap *fh = NULL;
char **files = NULL;
const char **p;
int r = 0;
assert(dirs);
fh = hashmap_new(string_hash_func, string_compare_func);
if (!fh) {
r = -ENOMEM;
goto finish;
}
STRV_FOREACH(p, dirs) {
if (files_add(fh, *p, suffix) < 0) {
log_error("Failed to search for files.");
r = -EINVAL;
goto finish;
}
}
files = hashmap_get_strv(fh);
if (files == NULL) {
log_error("Failed to compose list of files.");
r = -ENOMEM;
goto finish;
}
qsort(files, hashmap_size(fh), sizeof(char *), base_cmp);
finish:
hashmap_free(fh);
*strv = files;
return r;
}
int conf_files_list(char ***strv, const char *suffix, const char *dir, ...) {
char **dirs = NULL;
va_list ap;
int r;
va_start(ap, dir);
dirs = strv_new_ap(dir, ap);
va_end(ap);
if (!dirs) {
r = -ENOMEM;
goto finish;
}
if (!strv_path_canonicalize(dirs)) {
r = -ENOMEM;
goto finish;
}
strv_uniq(dirs);
r = conf_files_list_strv(strv, suffix, (const char **)dirs);
finish:
strv_free(dirs);
return r;
}
int hwclock_is_localtime(void) {
FILE *f;
bool local = false;

3
src/shared/util.h
View File

@ -460,9 +460,6 @@ int symlink_or_copy_atomic(const char *from, const char *to);
int fchmod_umask(int fd, mode_t mode);
int conf_files_list(char ***strv, const char *suffix, const char *dir, ...);
int conf_files_list_strv(char ***strv, const char *suffix, const char **dirs);
int hwclock_is_localtime(void);
int hwclock_apply_localtime_delta(int *min);
int hwclock_reset_localtime_delta(void);

1
src/sysctl/sysctl.c
View File

@ -31,6 +31,7 @@
#include "strv.h"
#include "util.h"
#include "strv.h"
#include "conf-files.h"
#define PROC_SYS_PREFIX "/proc/sys/"

1
src/tmpfiles/tmpfiles.c
View File

@ -45,6 +45,7 @@
#include "strv.h"
#include "label.h"
#include "set.h"
#include "conf-files.h"
/* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
* them in the file system. This is intended to be used to create

1
src/udev/udev-rules.c
View File

@ -31,6 +31,7 @@
#include <time.h>
#include "udev.h"
#include "conf-files.h"
#define PREALLOC_TOKEN 2048
#define PREALLOC_STRBUF 32 * 1024