util: split out kbd related stuff

This stuff is neither generic enough to be in def.h, nor really has much
to do with locale, hence give it its own .c/.h file pair.
This commit is contained in:
Lennart Poettering 2019-03-14 12:40:29 +01:00
parent ecd5f1a9e0
commit f05e1d0d9f
10 changed files with 135 additions and 112 deletions

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@ -21,19 +21,6 @@
#define SIGNALS_CRASH_HANDLER SIGSEGV,SIGILL,SIGFPE,SIGBUS,SIGQUIT,SIGABRT
#define SIGNALS_IGNORE SIGPIPE
#if HAVE_SPLIT_USR
#define KBD_KEYMAP_DIRS \
"/usr/share/keymaps/\0" \
"/usr/share/kbd/keymaps/\0" \
"/usr/lib/kbd/keymaps/\0" \
"/lib/kbd/keymaps/\0"
#else
#define KBD_KEYMAP_DIRS \
"/usr/share/keymaps/\0" \
"/usr/share/kbd/keymaps/\0" \
"/usr/lib/kbd/keymaps/\0"
#endif
/* Note that we use the new /run prefix here (instead of /var/run) since we require them to be aliases and that way we
* become independent of /var being mounted */
#define DEFAULT_SYSTEM_BUS_ADDRESS "unix:path=/run/dbus/system_bus_socket"

108
src/basic/kbd-util.c Normal file
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@ -0,0 +1,108 @@
/* SPDX-License-Identifier: LGPL-2.1+ */
#include <ftw.h>
#include "kbd-util.h"
#include "log.h"
#include "path-util.h"
#include "set.h"
#include "string-util.h"
#include "strv.h"
#include "utf8.h"
static thread_local Set *keymaps = NULL;
static int nftw_cb(
const char *fpath,
const struct stat *sb,
int tflag,
struct FTW *ftwbuf) {
_cleanup_free_ char *p = NULL;
char *e;
int r;
if (tflag != FTW_F)
return 0;
if (!endswith(fpath, ".map") &&
!endswith(fpath, ".map.gz"))
return 0;
p = strdup(basename(fpath));
if (!p)
return FTW_STOP;
e = endswith(p, ".map");
if (e)
*e = 0;
e = endswith(p, ".map.gz");
if (e)
*e = 0;
if (!keymap_is_valid(p))
return 0;
r = set_consume(keymaps, TAKE_PTR(p));
if (r < 0 && r != -EEXIST)
return r;
return 0;
}
int get_keymaps(char ***ret) {
_cleanup_strv_free_ char **l = NULL;
const char *dir;
int r;
keymaps = set_new(&string_hash_ops);
if (!keymaps)
return -ENOMEM;
NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
r = nftw(dir, nftw_cb, 20, FTW_PHYS|FTW_ACTIONRETVAL);
if (r == FTW_STOP)
log_debug("Directory not found %s", dir);
else if (r < 0)
log_debug_errno(r, "Can't add keymap: %m");
}
l = set_get_strv(keymaps);
if (!l) {
set_free_free(keymaps);
return -ENOMEM;
}
set_free(keymaps);
if (strv_isempty(l))
return -ENOENT;
strv_sort(l);
*ret = TAKE_PTR(l);
return 0;
}
bool keymap_is_valid(const char *name) {
if (isempty(name))
return false;
if (strlen(name) >= 128)
return false;
if (!utf8_is_valid(name))
return false;
if (!filename_is_valid(name))
return false;
if (!string_is_safe(name))
return false;
return true;
}

20
src/basic/kbd-util.h Normal file
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@ -0,0 +1,20 @@
/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
#include <stdbool.h>
#if HAVE_SPLIT_USR
#define KBD_KEYMAP_DIRS \
"/usr/share/keymaps/\0" \
"/usr/share/kbd/keymaps/\0" \
"/usr/lib/kbd/keymaps/\0" \
"/lib/kbd/keymaps/\0"
#else
#define KBD_KEYMAP_DIRS \
"/usr/share/keymaps/\0" \
"/usr/share/kbd/keymaps/\0" \
"/usr/lib/kbd/keymaps/\0"
#endif
int get_keymaps(char ***l);
bool keymap_is_valid(const char *name);

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@ -255,99 +255,6 @@ out:
return (bool) cached_answer;
}
static thread_local Set *keymaps = NULL;
static int nftw_cb(
const char *fpath,
const struct stat *sb,
int tflag,
struct FTW *ftwbuf) {
char *p, *e;
int r;
if (tflag != FTW_F)
return 0;
if (!endswith(fpath, ".map") &&
!endswith(fpath, ".map.gz"))
return 0;
p = strdup(basename(fpath));
if (!p)
return FTW_STOP;
e = endswith(p, ".map");
if (e)
*e = 0;
e = endswith(p, ".map.gz");
if (e)
*e = 0;
r = set_consume(keymaps, p);
if (r < 0 && r != -EEXIST)
return r;
return 0;
}
int get_keymaps(char ***ret) {
_cleanup_strv_free_ char **l = NULL;
const char *dir;
int r;
keymaps = set_new(&string_hash_ops);
if (!keymaps)
return -ENOMEM;
NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
r = nftw(dir, nftw_cb, 20, FTW_PHYS|FTW_ACTIONRETVAL);
if (r == FTW_STOP)
log_debug("Directory not found %s", dir);
else if (r < 0)
log_debug_errno(r, "Can't add keymap: %m");
}
l = set_get_strv(keymaps);
if (!l) {
set_free_free(keymaps);
return -ENOMEM;
}
set_free(keymaps);
if (strv_isempty(l))
return -ENOENT;
strv_sort(l);
*ret = TAKE_PTR(l);
return 0;
}
bool keymap_is_valid(const char *name) {
if (isempty(name))
return false;
if (strlen(name) >= 128)
return false;
if (!utf8_is_valid(name))
return false;
if (!filename_is_valid(name))
return false;
if (!string_is_safe(name))
return false;
return true;
}
static bool emoji_enabled(void) {
static int cached_emoji_enabled = -1;

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@ -68,9 +68,6 @@ const char *special_glyph(SpecialGlyph code) _const_;
const char* locale_variable_to_string(LocaleVariable i) _const_;
LocaleVariable locale_variable_from_string(const char *s) _pure_;
int get_keymaps(char ***l);
bool keymap_is_valid(const char *name);
static inline void freelocalep(locale_t *p) {
if (*p == (locale_t) 0)
return;

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@ -76,6 +76,8 @@ basic_sources = files('''
io-util.c
io-util.h
ioprio.h
kbd-util.c
kbd-util.h
khash.c
khash.h
label.c

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@ -27,6 +27,7 @@
#include "fileio.h"
#include "fs-util.h"
#include "hostname-util.h"
#include "kbd-util.h"
#include "locale-util.h"
#include "main-func.h"
#include "mkdir.h"

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@ -6,13 +6,13 @@
#include <unistd.h>
#include "bus-util.h"
#include "def.h"
#include "env-file.h"
#include "env-file-label.h"
#include "env-file.h"
#include "env-util.h"
#include "fd-util.h"
#include "fileio-label.h"
#include "fileio.h"
#include "kbd-util.h"
#include "keymap-util.h"
#include "locale-util.h"
#include "macro.h"

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@ -11,9 +11,9 @@
#include "bus-error.h"
#include "bus-util.h"
#include "def.h"
#include "fd-util.h"
#include "fileio.h"
#include "kbd-util.h"
#include "locale-util.h"
#include "main-func.h"
#include "memory-util.h"

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@ -1,5 +1,6 @@
/* SPDX-License-Identifier: LGPL-2.1+ */
#include "kbd-util.h"
#include "locale-util.h"
#include "macro.h"
#include "strv.h"