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treewide: check for JSON parse errors

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Check for JSON parse errors, and log error messages as appropriate.

It's mostly enough to do this where the input is parsed for the first
time, e.g. via pw_properties_new_string, as that already validates the
JSON syntax.
This commit is contained in:
Pauli Virtanen 2024-03-23 16:25:45 +02:00
parent 7ee8df39e8
commit 0da9255057
3 changed files with 24 additions and 2 deletions
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15
src/pipewire/conf.c
View file

@ -387,6 +387,8 @@ static int conf_load(const char *path, struct pw_properties *conf)
char *data;
struct stat sbuf;
int count;
int line = -1, col = -1;
int res;
spa_autoclose int fd = open(path, O_CLOEXEC | O_RDONLY);
if (fd < 0)
@ -399,6 +401,11 @@ static int conf_load(const char *path, struct pw_properties *conf)
if ((data = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED)
goto error;
if (!pw_properties_check_string(data, sbuf.st_size, &line, &col)) {
errno = EINVAL;
goto error;
}
count = pw_properties_update_string(conf, data, sbuf.st_size);
munmap(data, sbuf.st_size);
} else {
@ -410,8 +417,12 @@ static int conf_load(const char *path, struct pw_properties *conf)
return 0;
error:
pw_log_warn("%p: error loading config '%s': %m", conf, path);
return -errno;
res = -errno;
if (line != -1)
pw_log_warn("%p: syntax error in config '%s': line:%d col:%d", conf, path, line, col);
else
pw_log_warn("%p: error loading config '%s': %m", conf, path);
return res;
}
static bool check_override(struct pw_properties *conf, const char *name, int level)

7
src/tools/pw-dot.c
View file

@ -1277,6 +1277,7 @@ static int get_data_from_json(struct data *data, const char *json_path)
struct stat sbuf;
struct spa_json it[2];
const char *value;
int line, col;
if ((fd = open(json_path, O_CLOEXEC | O_RDONLY)) < 0) {
fprintf(stderr, "error opening file '%s': %m\n", json_path);
@ -1312,6 +1313,12 @@ static int get_data_from_json(struct data *data, const char *json_path)
}
munmap(json, sbuf.st_size);
if (spa_json_get_error(&it[0], json, &line, &col)) {
fprintf(stderr, "JSON syntax error on line:%d col:%d\n", line, col);
return -1;
}
return 0;
}