From 49c7dbd3920be7bb57a9ec39779d9695fbe8f0c5 Mon Sep 17 00:00:00 2001
From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Fri, 17 Apr 2020 12:20:20 +0400
Subject: [PATCH] config: allow multiple cfg structures for config update

---
 src/config.c    | 18 +++++++++++++-----
 src/config.h    |  2 +-
 src/sdl/main.c  |  3 ++-
 src/sdl2/main.c |  3 ++-
 4 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/src/config.c b/src/config.c
index 885a0e4..ed611c3 100644
--- a/src/config.c
+++ b/src/config.c
@@ -209,10 +209,12 @@ static int CFG_write_entry (FILE *f, const cfg_t *entry) {
   return entry->t == 0 ? 0 : 1;
 }
 
-int CFG_update_config (const char *old, const char *new, const cfg_t *cfg, const char *msg) {
+int CFG_update_config (const char *old, const char *new, int n, const cfg_t **cfg, const char *msg) {
   assert(old != NULL);
   assert(new != NULL);
+  assert(n >= 0);
   assert(cfg != NULL);
+  int i, j;
   char key[64];
   char value[64];
   FILE *nf = fopen(new, "wb");
@@ -224,15 +226,21 @@ int CFG_update_config (const char *old, const char *new, const cfg_t *cfg, const
     }
     if (CFG_open_iterator(old)) {
       while (CFG_scan_iterator(key, 64, value, 64)) {
-        if (CFG_find_entry(key, cfg) == NULL) {
+        i = 0;
+        while (i < n && CFG_find_entry(key, cfg[i]) == NULL) {
+          i++;
+        }
+        if (i >= n) {
           CFG_write_key_value(nf, key, value);
         }
       }
       CFG_close_iterator();
     }
-    int i = 0;
-    while (CFG_write_entry(nf, &cfg[i])) {
-      i++;
+    for (j = 0; j < n; j++) {
+      i = 0;
+      while (CFG_write_entry(nf, &cfg[j][i])) {
+        i++;
+      }
     }
     fclose(nf);
   }
diff --git a/src/config.h b/src/config.h
index 29d17d7..c666722 100644
--- a/src/config.h
+++ b/src/config.h
@@ -33,6 +33,6 @@ int CFG_scan_iterator (char *key, int keylen, char *value, int valuelen);
 void CFG_close_iterator (void);
 
 int CFG_read_config (const char *name, const cfg_t *cfg);
-int CFG_update_config (const char *old, const char *new, const cfg_t *cfg, const char *msg);
+int CFG_update_config (const char *old, const char *new, int n, const cfg_t **cfg, const char *msg);
 
 #endif /* CONFIG_H_INCLUDED */
diff --git a/src/sdl/main.c b/src/sdl/main.c
index 2df46b3..a440844 100644
--- a/src/sdl/main.c
+++ b/src/sdl/main.c
@@ -131,7 +131,8 @@ static void CFG_load (void) {
 }
 
 static void CFG_save (void) {
-  CFG_update_config("doom2d.cfg", "doom2d.cfg", cfg, "generated by doom2d, do not modify");
+  const cfg_t *list[] = { &cfg, NULL };
+  CFG_update_config("doom2d.cfg", "doom2d.cfg", 1, list, "generated by doom2d, do not modify");
   //CFG_update_config("doom2d.cfg", "doom2d.tmp", cfg, "temporary file");
   //CFG_update_config("doom2d.tmp", "doom2d.cfg", cfg, "generated by doom2d, do not modify");
   //remove("doom2d.tmp");
diff --git a/src/sdl2/main.c b/src/sdl2/main.c
index ae80fe9..37b4c26 100644
--- a/src/sdl2/main.c
+++ b/src/sdl2/main.c
@@ -110,7 +110,8 @@ static void CFG_load (void) {
 }
 
 static void CFG_save (void) {
-  CFG_update_config("doom2d.cfg", "doom2d.cfg", cfg, "generated by doom2d, do not modify");
+  const cfg_t *list[] = { &cfg, NULL };
+  CFG_update_config("doom2d.cfg", "doom2d.cfg", 1, list, "generated by doom2d, do not modify");
   //CFG_update_config("doom2d.cfg", "doom2d.tmp", cfg, "temporary file");
   //CFG_update_config("doom2d.tmp", "doom2d.cfg", cfg, "generated by doom2d, do not modify");
   //remove("doom2d.tmp");
-- 
2.29.2