static int x11_read_data(Context *c) {
_cleanup_fclose_ FILE *f;
char line[LINE_MAX];
bool in_section = false;
int r;
context_free_x11(c);
f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
if (!f)
return errno == ENOENT ? 0 : -errno;
while (fgets(line, sizeof(line), f)) {
char *l;
char_array_0(line);
l = strstrip(line);
if (l[0] == 0 || l[0] == '#')
continue;
if (in_section && first_word(l, "Option")) {
_cleanup_strv_free_ char **a = NULL;
r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
if (r < 0)
return r;
if (strv_length(a) == 3) {
if (streq(a[1], "XkbLayout")) {
free_and_replace(&c->x11_layout, a[2]);
a[2] = NULL;
} else if (streq(a[1], "XkbModel")) {
free_and_replace(&c->x11_model, a[2]);
a[2] = NULL;
} else if (streq(a[1], "XkbVariant")) {
free_and_replace(&c->x11_variant, a[2]);
a[2] = NULL;
} else if (streq(a[1], "XkbOptions")) {
free_and_replace(&c->x11_options, a[2]);
a[2] = NULL;
}
}
} else if (!in_section && first_word(l, "Section")) {
_cleanup_strv_free_ char **a = NULL;
r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
if (r < 0)
return -ENOMEM;
if (strv_length(a) == 2 && streq(a[1], "InputClass"))
in_section = true;
} else if (in_section && first_word(l, "EndSection"))
in_section = false;
}
return 0;
}
static void test_invalid_unquote(const char *quoted) {
char **s = NULL;
int r;
r = strv_split_extract(&s, quoted, WHITESPACE, EXTRACT_QUOTES);
assert_se(s == NULL);
assert_se(r == -EINVAL);
}
static void test_strv_split_extract(void) {
_cleanup_strv_free_ char **l = NULL;
const char *str = ":foo\\:bar::waldo:";
int r;
r = strv_split_extract(&l, str, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
assert_se(r == (int) strv_length(l));
assert_se(streq_ptr(l[0], ""));
assert_se(streq_ptr(l[1], "foo:bar"));
assert_se(streq_ptr(l[2], ""));
assert_se(streq_ptr(l[3], "waldo"));
assert_se(streq_ptr(l[4], ""));
assert_se(streq_ptr(l[5], NULL));
}
static int read_next_mapping(const char* filename,
unsigned min_fields, unsigned max_fields,
FILE *f, unsigned *n, char ***a) {
assert(f);
assert(n);
assert(a);
for (;;) {
char line[LINE_MAX];
char *l, **b;
int r;
size_t length;
errno = 0;
if (!fgets(line, sizeof(line), f)) {
if (ferror(f))
return errno > 0 ? -errno : -EIO;
return 0;
}
(*n)++;
l = strstrip(line);
if (IN_SET(l[0], 0, '#'))
continue;
r = strv_split_extract(&b, l, WHITESPACE, EXTRACT_QUOTES);
if (r < 0)
return r;
length = strv_length(b);
if (length < min_fields || length > max_fields) {
log_error("Invalid line %s:%u, ignoring.", filename, *n);
strv_free(b);
continue;
}
*a = b;
return 1;
}
}
static void test_strv_unquote(const char *quoted, char **list) {
_cleanup_strv_free_ char **s;
_cleanup_free_ char *j;
unsigned i = 0;
char **t;
int r;
r = strv_split_extract(&s, quoted, WHITESPACE, EXTRACT_QUOTES);
assert_se(r == (int) strv_length(list));
assert_se(s);
j = strv_join(s, " | ");
assert_se(j);
puts(j);
STRV_FOREACH(t, s)
assert_se(streq(list[i++], *t));
assert_se(list[i] == NULL);
}
static int read_next_mapping(const char* filename,
unsigned min_fields, unsigned max_fields,
FILE *f, unsigned *n, char ***a) {
assert(f);
assert(n);
assert(a);
for (;;) {
_cleanup_free_ char *line = NULL;
size_t length;
char *l, **b;
int r;
r = read_line(f, LONG_LINE_MAX, &line);
if (r < 0)
return r;
if (r == 0)
break;
(*n)++;
l = strstrip(line);
if (IN_SET(l[0], 0, '#'))
continue;
r = strv_split_extract(&b, l, WHITESPACE, EXTRACT_QUOTES);
if (r < 0)
return r;
length = strv_length(b);
if (length < min_fields || length > max_fields) {
log_error("Invalid line %s:%u, ignoring.", filename, *n);
strv_free(b);
continue;
}
*a = b;
return 1;
}
return 0;
}
static void test_strv_quote_unquote(const char* const *split, const char *quoted) {
_cleanup_free_ char *p;
_cleanup_strv_free_ char **s = NULL;
char **t;
int r;
p = strv_join_quoted((char **)split);
assert_se(p);
printf("-%s- --- -%s-\n", p, quoted); /* fprintf deals with NULL, puts does not */
assert_se(p);
assert_se(streq(p, quoted));
r = strv_split_extract(&s, quoted, WHITESPACE, EXTRACT_QUOTES);
assert_se(r == (int) strv_length(s));
assert_se(s);
STRV_FOREACH(t, s) {
assert_se(*t);
assert_se(streq(*t, *split));
split++;
}
int x11_read_data(Context *c, sd_bus_message *m) {
_cleanup_fclose_ FILE *f = NULL;
bool in_section = false;
char line[LINE_MAX];
struct stat st;
usec_t t;
int r;
/* Do not try to re-read the file within single bus operation. */
if (m) {
if (m == c->x11_cache)
return 0;
sd_bus_message_unref(c->x11_cache);
c->x11_cache = sd_bus_message_ref(m);
}
if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) < 0) {
if (errno != ENOENT)
return -errno;
c->x11_mtime = USEC_INFINITY;
context_free_x11(c);
return 0;
}
/* If mtime is not changed, then we do not need to re-read */
t = timespec_load(&st.st_mtim);
if (c->x11_mtime != USEC_INFINITY && t == c->x11_mtime)
return 0;
c->x11_mtime = t;
context_free_x11(c);
f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
if (!f)
return -errno;
while (fgets(line, sizeof(line), f)) {
char *l;
char_array_0(line);
l = strstrip(line);
if (IN_SET(l[0], 0, '#'))
continue;
if (in_section && first_word(l, "Option")) {
_cleanup_strv_free_ char **a = NULL;
r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
if (r < 0)
return r;
if (strv_length(a) == 3) {
char **p = NULL;
if (streq(a[1], "XkbLayout"))
p = &c->x11_layout;
else if (streq(a[1], "XkbModel"))
p = &c->x11_model;
else if (streq(a[1], "XkbVariant"))
p = &c->x11_variant;
else if (streq(a[1], "XkbOptions"))
p = &c->x11_options;
if (p) {
free_and_replace(*p, a[2]);
}
}
} else if (!in_section && first_word(l, "Section")) {
_cleanup_strv_free_ char **a = NULL;
r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
if (r < 0)
return -ENOMEM;
if (strv_length(a) == 2 && streq(a[1], "InputClass"))
in_section = true;
} else if (in_section && first_word(l, "EndSection"))
in_section = false;
}
return 0;
}
