Fix insmod module size

read_file() used to append a new line character to the end of the buffer it
returns, because parse_config() isn't able to cope with input that's not
'\n'-terminated. Fix read_file() to be less insane, and push the workarounds
into the parse_config() callers.

Longer term we should rewrite parse_config().

Change-Id: Ie9d9a7adcd33b66621726aef20c4b8cc51c08be7
This commit is contained in:
Tom Cherry 2015-05-12 13:54:41 -07:00 committed by Elliott Hughes
parent 7297278ade
commit eaa3b4ec6f
5 changed files with 11 additions and 15 deletions

View File

@ -57,16 +57,13 @@ extern "C" int init_module(void *, unsigned long, const char *);
static int insmod(const char *filename, char *options)
{
std::string module;
char filename_val[PROP_VALUE_MAX];
int ret;
ret = expand_props(filename_val, filename, sizeof(filename_val));
if (ret) {
if (expand_props(filename_val, filename, sizeof(filename_val)) == -1) {
ERROR("insmod: cannot expand '%s'\n", filename);
return -EINVAL;
}
std::string module;
if (!read_file(filename_val, &module)) {
return -1;
}

View File

@ -382,13 +382,13 @@ static void parse_new_section(struct parse_state *state, int kw,
static void parse_config(const char *fn, const std::string& data)
{
struct parse_state state;
struct listnode import_list;
struct listnode *node;
char *args[INIT_PARSER_MAXARGS];
int nargs;
nargs = 0;
int nargs = 0;
parse_state state;
state.filename = fn;
state.line = 0;
state.ptr = strdup(data.c_str()); // TODO: fix this code!
@ -442,6 +442,7 @@ bool init_parse_config_file(const char* path) {
return false;
}
data.push_back('\n'); // TODO: fix parse_config.
parse_config(path, data);
dump_parser_state();

View File

@ -420,6 +420,7 @@ static void load_properties_from_file(const char* filename, const char* filter)
Timer t;
std::string data;
if (read_file(filename, &data)) {
data.push_back('\n');
load_properties(&data[0], filter);
}
NOTICE("(Loading properties from %s took %.2fs.)\n", filename, t.duration());

View File

@ -193,10 +193,10 @@ static void parse_line(struct parse_state *state, char **args, int nargs)
static void parse_config(const char *fn, const std::string& data)
{
struct parse_state state;
char *args[UEVENTD_PARSER_MAXARGS];
int nargs;
nargs = 0;
int nargs = 0;
parse_state state;
state.filename = fn;
state.line = 1;
state.ptr = strdup(data.c_str()); // TODO: fix this code!
@ -231,6 +231,7 @@ int ueventd_parse_config_file(const char *fn)
return -1;
}
data.push_back('\n'); // TODO: fix parse_config.
parse_config(fn, data);
dump_parser_state();
return 0;

View File

@ -172,9 +172,6 @@ bool read_file(const char* path, std::string* content) {
bool okay = android::base::ReadFdToString(fd, content);
TEMP_FAILURE_RETRY(close(fd));
if (okay) {
content->append("\n", 1);
}
return okay;
}
@ -460,4 +457,3 @@ std::string bytes_to_hex(const uint8_t* bytes, size_t bytes_len) {
android::base::StringAppendF(&hex, "%02x", bytes[i]);
return hex;
}