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config_font_parse(): return fail/success

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Daniel Eklöf 2020-12-15 18:55:27 +01:00
parent 04703c07f0
commit 0d6b5f522e
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GPG key ID: 5BBD4992C116573F
4 changed files with 35 additions and 11 deletions
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1
CHANGELOG.md
View file

@ -136,6 +136,7 @@ means foot can be PGO:d in e.g. sandboxed build scripts. See
(e.g. `\E[38:5...m`)
* Frames occasionally being rendered while application synchronized
updates is in effect.
* Handling of failures to parse the font specification string.
### Security

34
config.c
View file

@ -534,8 +534,16 @@ parse_section_main(const char *key, const char *value, struct config *conf,
/* Trim spaces, strictly speaking not necessary, but looks nice :) */
while (*font != '\0' && isspace(*font))
font++;
if (*font != '\0')
tll_push_back(conf->fonts[idx], config_font_parse(font));
if (*font != '\0') {
struct config_font font_data;
if (!config_font_parse(font, &font_data)) {
LOG_ERR("%s:%d: [default]: %s: invalid font specification",
path, lineno, key);
free(copy);
return false;
}
tll_push_back(conf->fonts[idx], font_data);
}
}
free(copy);
}
@ -2083,8 +2091,14 @@ config_load(struct config *conf, const char *conf_path,
conf->colors.selection_bg >> 24 == 0;
out:
if (ret && tll_length(conf->fonts[0]) == 0)
tll_push_back(conf->fonts[0], config_font_parse("monospace"));
if (ret && tll_length(conf->fonts[0]) == 0) {
struct config_font font;
if (!config_font_parse("monospace", &font)) {
LOG_ERR("failed to load font 'monospace' - no fonts installed?");
ret = false;
} else
tll_push_back(conf->fonts[0], font);
}
free(conf_file.path);
if (conf_file.fd >= 0)
@ -2131,10 +2145,12 @@ config_free(struct config conf)
user_notifications_free(&conf.notifications);
}
struct config_font
config_font_parse(const char *pattern)
bool
config_font_parse(const char *pattern, struct config_font *font)
{
FcPattern *pat = FcNameParse((const FcChar8 *)pattern);
if (pat == NULL)
return false;
double pt_size = -1.0;
FcPatternGetDouble(pat, FC_SIZE, 0, &pt_size);
@ -2150,10 +2166,12 @@ config_font_parse(const char *pattern)
char *stripped_pattern = (char *)FcNameUnparse(pat);
FcPatternDestroy(pat);
return (struct config_font){
*font = (struct config_font){
.pattern = stripped_pattern,
.pt_size = pt_size,
.px_size = px_size};
.px_size = px_size
};
return true;
}
void

2
config.h
View file

@ -191,5 +191,5 @@ bool config_load(
user_notifications_t *initial_user_notifications, bool errors_are_fatal);
void config_free(struct config conf);
struct config_font config_font_parse(const char *pattern);
bool config_font_parse(const char *pattern, struct config_font *font);
void config_font_destroy(struct config_font *font);

9
main.c
View file

@ -403,8 +403,13 @@ main(int argc, char *const *argv)
config_font_destroy(&it->item);
tll_free(conf.fonts[i]);
}
tll_foreach(conf_fonts, it)
tll_push_back(conf.fonts[0], config_font_parse(it->item));
tll_foreach(conf_fonts, it) {
struct config_font font;
if (!config_font_parse(it->item, &font)) {
LOG_ERR("%s: invalid font specification", it->item);
} else
tll_push_back(conf.fonts[0], font);
}
tll_free(conf_fonts);
}
if (conf_width > 0 && conf_height > 0) {