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Merge 2b4e549d44 into 1178f753cf

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ailin-nemui 2018-03-07 12:16:26 +00:00 • committed by GitHub
commit b6a915c027
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1 changed files with 43 additions and 15 deletions
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56
src/core/settings.c
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@ -47,7 +47,8 @@ static int timeout_tag;
static int config_last_modifycounter;
static time_t config_last_mtime;
static long config_last_size;
static unsigned int config_last_checksum;
static guint8 *config_last_checksum;
static gsize config_last_checksum_length;
static SETTINGS_REC *settings_get(const char *key, SettingType type)
{
@ -661,24 +662,45 @@ void sig_term(int n)
raise(SIGTERM);
}
/* Yes, this is my own stupid checksum generator, some "real" algorithm
would be nice but would just take more space without much real benefit */
static unsigned int file_checksum(const char *fname)
static int file_checksum(const char *fname, const guint8 *old_checksum, gsize old_checksum_length,
guint8 **checksum_out, gsize *checksum_length_out)
{
char buf[512];
int f, ret, n;
unsigned int checksum = 0;
GChecksum *c;
unsigned char buf[512];
guint8 *checksum;
gsize checksum_length;
int f, ret;
static GChecksumType checksum_type = G_CHECKSUM_SHA1;
if ((c = g_checksum_new(checksum_type)) == NULL) {
return FALSE;
}
f = open(fname, O_RDONLY);
if (f == -1) return 0;
if (f == -1)
return FALSE;
n = 0;
while ((ret = read(f, buf, sizeof(buf))) > 0) {
while (ret-- > 0)
checksum += buf[ret] << ((n++ & 3)*8);
g_checksum_update(c, buf, ret);
}
close(f);
return checksum;
checksum_length = g_checksum_type_get_length(checksum_type);
checksum = g_new0(guint8, checksum_length);
g_checksum_get_digest(c, checksum, &checksum_length);
g_checksum_free(c);
if (checksum_out != NULL && checksum_length_out != NULL) {
g_free(*checksum_out);
*checksum_out = checksum;
*checksum_length_out = checksum_length;
}
if (old_checksum != NULL) {
return old_checksum_length == checksum_length &&
memcmp(checksum, old_checksum, checksum_length) == 0;
}
return TRUE;
}
static void irssi_config_save_state(const char *fname)
@ -693,7 +715,7 @@ static void irssi_config_save_state(const char *fname)
/* save modify time, file size and checksum */
config_last_mtime = statbuf.st_mtime;
config_last_size = statbuf.st_size;
config_last_checksum = file_checksum(fname);
file_checksum(fname, NULL, 0, &config_last_checksum, &config_last_checksum_length);
}
int irssi_config_is_changed(const char *fname)
@ -708,7 +730,7 @@ int irssi_config_is_changed(const char *fname)
return config_last_mtime != statbuf.st_mtime &&
(config_last_size != statbuf.st_size ||
config_last_checksum != file_checksum(fname));
file_checksum(fname, config_last_checksum, config_last_checksum_length, NULL, NULL));
}
static CONFIG_REC *parse_configfile(const char *fname)
@ -906,4 +928,10 @@ void settings_deinit(void)
g_hash_table_destroy(settings);
if (mainconfig != NULL) config_close(mainconfig);
if (config_last_checksum != NULL) {
g_free(config_last_checksum);
config_last_checksum = NULL;
config_last_checksum_length = 0;
}
}