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riverctl patch: cleanup error handling to much less prone to memory leaks and use after free's

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This commit is contained in:
Zuki Air 2025-07-29 11:46:23 +01:00
parent fb576dd523
commit 642e4d0870
1 changed files with 35 additions and 36 deletions
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71
patches/riverctl/riverctl.patch
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@ -1,4 +1,4 @@
From 2c699064c0d592e35a7316e546648b6f56cb6e9c Mon Sep 17 00:00:00 2001
From 45600be73ddc309ef5e3c5f962883231a973f4e0 Mon Sep 17 00:00:00 2001
From: Zuki Air <zukirust@gmail.com>
Date: Sun, 27 Jul 2025 11:30:32 +0100
Subject: [PATCH] river-ctl patch
@ -13,8 +13,8 @@ improve uint error handling
dwl.c | 20 +-
dwlctl.c | 132 +++++
protocols/river-control-unstable-v1.xml | 85 +++
river-control.h | 744 ++++++++++++++++++++++++
7 files changed, 1024 insertions(+), 16 deletions(-)
river-control.h | 743 ++++++++++++++++++++++++
7 files changed, 1023 insertions(+), 16 deletions(-)
create mode 100644 dwlctl.c
create mode 100644 protocols/river-control-unstable-v1.xml
create mode 100644 river-control.h
@ -448,10 +448,10 @@ index 0000000..aa5fc4d
+</protocol>
diff --git a/river-control.h b/river-control.h
new file mode 100644
index 0000000..07cd8fb
index 0000000..329e15b
--- /dev/null
+++ b/river-control.h
@@ -0,0 +1,744 @@
@@ -0,0 +1,743 @@
+#include "river-control-unstable-v1-private-protocol.c"
+#include "river-control-unstable-v1-protocol.h"
+#ifdef KEYS_USED
@ -854,7 +854,7 @@ index 0000000..07cd8fb
+ args->str_link = add_rule_str_store();
+ args->p.rl->rule->monitor = -1;
+ } else {
+ free(args->p.rl);
+ // free(args->p.rl);
+ args->error = true;
+ args->error_msg = zriver_error_alloc;
+ }
@ -869,7 +869,6 @@ index 0000000..07cd8fb
+ if (args->p.kl != NULL) {
+ args->p.kl->key = calloc(1,sizeof(Key));
+ if (args->p.kl->key == NULL) {
+ free(args->p.kl);
+ args->error = true;
+ args->error_msg = zriver_error_alloc;
+ } else {
@ -916,11 +915,8 @@ index 0000000..07cd8fb
+ args->p.rl->rule->id = append_str_store(args->str_link->string,argument,args->argc-1);
+ args->rule_match_type = ZRIVER_RULE_MATCH_TYPE_NONE;
+ } else {
+ free(args->p.rl->rule);
+ free(args->p.rl);
+ args->error = true;
+ args->error_msg = zriver_error_double_appid;
+ free_str_store(args->str_link);
+ }
+ break;
+ case(ZRIVER_RULE_MATCH_TYPE_TITLE):
@ -928,11 +924,8 @@ index 0000000..07cd8fb
+ args->p.rl->rule->title = append_str_store(args->str_link->string,argument,args->argc-1);
+ args->rule_match_type = ZRIVER_RULE_MATCH_TYPE_NONE;
+ } else {
+ free(args->p.rl->rule);
+ free(args->p.rl);
+ args->error = true;
+ args->error_msg = zriver_error_double_title;
+ free_str_store(args->str_link);
+ }
+ break;
+ case(ZRIVER_RULE_MATCH_TYPE_APPLYING):
@ -951,9 +944,6 @@ index 0000000..07cd8fb
+ args->rule_type = ZRIVER_RULE_TYPE_MONITOR;
+ args->rule_valid = true;
+ } else {
+ free(args->p.rl->rule);
+ free(args->p.rl);
+ free_str_store(args->str_link);
+ args->error = true;
+ }
+ break;
@ -1054,16 +1044,6 @@ index 0000000..07cd8fb
+ } else if (strcmp("down",argument)) {
+ arg->i = WLR_DIRECTION_DOWN;
+ } else {
+ if (args->type == ZRIVER_ARG_TYPE_KEY) {
+ free(args->p.kl->key);
+ free(args->p.kl);
+ } else if (args->type == ZRIVER_ARG_TYPE_FUNC) {
+ if (args->str_link != NULL) {
+ free_str_store(args->str_link);
+ free(args->str_link);
+ }
+ free(args->p.fa);
+ }
+ args->error = true;
+ args->error_msg = zriver_error_out_of_range;
+ }
@ -1073,16 +1053,6 @@ index 0000000..07cd8fb
+ if (arg->ui < (int)LENGTH(layouts)) {
+ arg->v = &layouts[arg->ui];
+ } else {
+ if (args->type == ZRIVER_ARG_TYPE_KEY) {
+ free(args->p.kl->key);
+ free(args->p.kl);
+ } else if (args->type == ZRIVER_ARG_TYPE_FUNC) {
+ if (args->str_link != NULL) {
+ free_str_store(args->str_link);
+ free(args->str_link);
+ }
+ free(args->p.fa);
+ }
+ args->error = true;
+ args->error_msg = zriver_error_out_of_range;
+ }
@ -1102,6 +1072,35 @@ index 0000000..07cd8fb
+ if (args->argc == 0) {
+ zriver_command_callback_v1_send_failure(callback_interface,zriver_error_too_few_args);
+ } else if (args->error == true) {
+ switch (args->type) {
+ case(ZRIVER_ARG_TYPE_KEY):
+ if (args->p.kl != NULL) {
+ if (args->p.kl->key != NULL) {
+ free(args->p.kl->key);
+ }
+ free(args->p.kl);
+ }
+ break;
+ case(ZRIVER_ARG_TYPE_FUNC):
+ if (args->p.fa != NULL) {
+ free(args->p.fa);
+ }
+ break;
+ case(ZRIVER_ARG_TYPE_RULE):
+ if (args->p.rl != NULL) {
+ if (args->p.rl->rule != NULL) {
+ free(args->p.rl->rule);
+ }
+ free(args->p.rl);
+ }
+ break;
+ case(ZRIVER_ARG_TYPE_NONE):
+ break;
+ }
+ if (args->str_link != NULL) {
+ free_str_store(args->str_link);
+ free(args->str_link);
+ }
+ zriver_command_callback_v1_send_failure(callback_interface,args->error_msg);
+ } else if (args->error == false) {
+ if (args->type == ZRIVER_ARG_TYPE_KEY) {