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Prevent from segfault if user add too many devices in configuration file(s)

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This commit is contained in:
Romuald Conty
2012-12-05 16:41:44 +01:00
parent a3a3fa2848
commit 53349c8c20
1 changed files with 10 additions and 0 deletions
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10
libnfc/conf.c
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@@ -82,6 +82,8 @@ conf_parse_file(const char* filename, void (*conf_keyvalue)(void* data, const ch
break; break;
} }
} }
free(pmatch);
return false; return false;
} }
@@ -98,11 +100,19 @@ conf_keyvalue_context(void *data, const char* key, const char* value)
context->log_level = atoi(value); context->log_level = atoi(value);
} else if (strcmp(key, "device.name") == 0) { } else if (strcmp(key, "device.name") == 0) {
if ((context->user_defined_device_count == 0) || strcmp(context->user_defined_devices[context->user_defined_device_count-1].name, "") != 0) { if ((context->user_defined_device_count == 0) || strcmp(context->user_defined_devices[context->user_defined_device_count-1].name, "") != 0) {
if(context->user_defined_device_count >= MAX_USER_DEFINED_DEVICES) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Configuration exceeded maximum user-defined devices.");
return;
}
context->user_defined_device_count++; context->user_defined_device_count++;
} }
strcpy(context->user_defined_devices[context->user_defined_device_count-1].name, value); strcpy(context->user_defined_devices[context->user_defined_device_count-1].name, value);
} else if (strcmp(key, "device.connstring") == 0) { } else if (strcmp(key, "device.connstring") == 0) {
if ((context->user_defined_device_count == 0) || strcmp(context->user_defined_devices[context->user_defined_device_count-1].connstring, "") != 0) { if ((context->user_defined_device_count == 0) || strcmp(context->user_defined_devices[context->user_defined_device_count-1].connstring, "") != 0) {
if(context->user_defined_device_count >= MAX_USER_DEFINED_DEVICES) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Configuration exceeded maximum user-defined devices.");
return;
}
context->user_defined_device_count++; context->user_defined_device_count++;
} }
strcpy(context->user_defined_devices[context->user_defined_device_count-1].connstring, value); strcpy(context->user_defined_devices[context->user_defined_device_count-1].connstring, value);