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Code Releases Activity

fixed dmevent so that it doesn't do a double free when you run

Browse Source 
# dmevent -l

Also, changed the behaviour of dm_get_registered_device(), so that it doesn't
change the pointer you passed in without freeing the memory on a non-next call,
and doesn't free your pointer without setting it to NULL on a failed next call.
This commit is contained in:
Benjamin Marzinski 2005-05-04 18:53:28 +00:00
parent 48a186f172
commit b355dd7b23
1 changed files with 23 additions and 25 deletions
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48
daemons/dmeventd/dmevent.c
View File

@ -50,8 +50,8 @@ static void print_usage(char *name)
}
/* Parse command line arguments. */
static int parse_argv(int argc, char **argv,
char **dso_name, char **device, int *reg, int *list)
static int parse_argv(int argc, char **argv, char **dso_name_arg,
char **device_arg, int *reg, int *list)
{
int c;
const char *options = "d:hlru";
@ -59,9 +59,7 @@ static int parse_argv(int argc, char **argv,
while ((c = getopt(argc, argv, options)) != -1) {
switch (c) {
case 'd':
if (!(*dso_name = strdup(optarg)))
exit(EXIT_FAILURE);
dso_name_arg = optarg;
break;
case 'h':
print_usage(argv[0]);
@ -83,16 +81,13 @@ static int parse_argv(int argc, char **argv,
}
}
if (!*dso_name && !(*dso_name = strdup(default_dso_name)))
exit(EXIT_FAILURE);
if (optind >= argc) {
if (!*list) {
fprintf(stderr, "You need to specify a device.\n");
return 0;
}
} else if (!(*device = strdup(argv[optind])))
exit(EXIT_FAILURE);
} else
device_arg = argv[optind];
return 1;
}
@ -100,15 +95,25 @@ static int parse_argv(int argc, char **argv,
int main(int argc, char **argv)
{
int list = 0, next = 0, ret, reg = default_reg;
char *device = NULL, *device_arg, *dso_name = NULL, *dso_name_arg;
char *device, *device_arg = NULL, *dso_name, *dso_name_arg = NULL;
struct log_data *ldata;
if (!parse_argv(argc, argv, &dso_name, &device, &reg, &list))
if (!parse_argv(argc, argv, &dso_name_arg, &device_arg, &reg, &list))
exit(EXIT_FAILURE);
device_arg = device;
dso_name_arg = dso_name;
if (device_arg){
if (!(device = strdup(device_arg)))
exit(EXIT_FAILURE);
} else
device = NULL;
if (dso_name_arg){
if (!(dso_name = strdup(dso_name_arg)))
exit(EXIT_FAILURE);
} else {
if (!(dso_name = strdup(default_dso_name)))
exit(EXIT_FAILURE);
}
if(!(ldata = malloc(sizeof(*ldata))))
exit(ENOMEM);
@ -134,12 +139,6 @@ int main(int argc, char **argv)
}
} while (!ret);
if (dso_name)
free(dso_name);
if (device)
free(device);
ret = (ret && device_arg) ? EXIT_FAILURE : EXIT_SUCCESS;
goto out;
}
@ -158,11 +157,10 @@ int main(int argc, char **argv)
out:
multilog_del_type(standard, ldata);
if (device_arg)
free(device_arg);
if (dso_name_arg)
free(dso_name_arg);
if (device)
free(device);
if (dso_name)
free(dso_name);
exit(ret);
}