Eric Pouech : winedbg: Don't crash when no search path has been set.

[Alexandre Julliard]

Module: wine
Branch: stable
Commit: d873b191009725d7a6fb71265b58cfa267f5cd35
URL:    https://gitlab.winehq.org/wine/wine/-/commit/d873b191009725d7a6fb71265b58cfa...

Author: Eric Pouech 
Date:   Tue Apr  4 19:09:38 2023 +0200

winedbg: Don't crash when no search path has been set.

Note: it's anyway wrong to search source files inside modules' path
(a proper fix will require revisiting source file handling).
This fix will actually be sufficient when running wine from within
its build tree.

Signed-off-by: Eric Pouech 
(cherry picked from commit 24069aad307829c710f4eaee5aa2b35586bd7f14)

---

programs/winedbg/source.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/programs/winedbg/source.c b/programs/winedbg/source.c
index 044eccaab5e..74f31d986c6 100644
--- a/programs/winedbg/source.c
+++ b/programs/winedbg/source.c
@@ -122,17 +122,18 @@ static BOOL     source_locate_file(const char* srcfile, char* path)
         strcpy(path, srcfile);
         found = TRUE;
     }
-    else if (dbg_curr_process->search_path)
+    else
     {
         const char* spath;
-
+        const char* sp = dbg_curr_process->search_path;
+        if (!sp) sp = ".";
         spath = srcfile;
         while (!found)
         {
             while (*spath && *spath != '/' && *spath != '\') spath++;
             if (!*spath) break;
             spath++;
-            found = SearchPathA(dbg_curr_process->search_path, spath, NULL, MAX_PATH, path, NULL);
+            found = SearchPathA(sp, spath, NULL, MAX_PATH, path, NULL);
         }
     }
     return found;