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authorMarkus Armbruster <armbru@redhat.com>2018-10-17 10:26:49 +0200
committerMarkus Armbruster <armbru@redhat.com>2018-10-19 14:51:34 +0200
commitf7b9e299a44343115148246b4de53fb3ac6e7b22 (patch)
tree604e117c7ec1552dcc33b47aab5bd178d8b94b07
parentcd65f34991f01c23c9e3e1691953b79e36a1b911 (diff)
ui/keymaps: Fix handling of erroneous include files
While errors in the keyboard layout named with -k are fatal, errors in included files are reported, but otherwise ignored: $ cat worst include bad include worse $ ls -l bad worse ls: cannot access 'bad': No such file or directory ls: cannot access 'worse': No such file or directory $ qemu-system-x86_64 -nodefaults -S -monitor stdio -display vnc=:0 -k bad QEMU 3.0.50 monitor - type 'help' for more information (qemu) Could not read keymap file: 'bad' $ qemu-system-x86_64 -nodefaults -S -monitor stdio -display vnc=:0 -k worst QEMU 3.0.50 monitor - type 'help' for more information (qemu) Could not read keymap file: 'bad' Could not read keymap file: 'worse' Fix that. Note that parse_keyboard_layout() allocates the keymap, except when it's parsing an include file. To keep error handling simple, move the memory management to its caller init_keyboard_layout(). Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181017082702.5581-26-armbru@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r--ui/keymaps.c35
1 files changed, 23 insertions, 12 deletions
diff --git a/ui/keymaps.c b/ui/keymaps.c
index 43fe604724..b05fb028dc 100644
--- a/ui/keymaps.c
+++ b/ui/keymaps.c
@@ -79,10 +79,11 @@ static void add_keysym(char *line, int keysym, int keycode, kbd_layout_t *k)
trace_keymap_add(keysym, keycode, line);
}
-static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table,
- const char *language,
- kbd_layout_t *k)
+static int parse_keyboard_layout(kbd_layout_t *k,
+ const name2keysym_t *table,
+ const char *language)
{
+ int ret;
FILE *f;
char * filename;
char line[1024];
@@ -95,12 +96,7 @@ static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table,
g_free(filename);
if (!f) {
fprintf(stderr, "Could not read keymap file: '%s'\n", language);
- return NULL;
- }
-
- if (!k) {
- k = g_new0(kbd_layout_t, 1);
- k->hash = g_hash_table_new(NULL, NULL);
+ return -1;
}
for(;;) {
@@ -118,7 +114,10 @@ static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table,
continue;
}
if (!strncmp(line, "include ", 8)) {
- parse_keyboard_layout(table, line + 8, k);
+ if (parse_keyboard_layout(k, table, line + 8) < 0) {
+ ret = -1;
+ goto out;
+ }
} else {
int offset = 0;
while (line[offset] != 0 &&
@@ -164,15 +163,27 @@ static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table,
}
}
}
+
+ ret = 0;
+out:
fclose(f);
- return k;
+ return ret;
}
kbd_layout_t *init_keyboard_layout(const name2keysym_t *table,
const char *language)
{
- return parse_keyboard_layout(table, language, NULL);
+ kbd_layout_t *k;
+
+ k = g_new0(kbd_layout_t, 1);
+ k->hash = g_hash_table_new(NULL, NULL);
+ if (parse_keyboard_layout(k, table, language) < 0) {
+ g_hash_table_unref(k->hash);
+ g_free(k);
+ return NULL;
+ }
+ return k;
}