Check if file can be opened before using dup2

Belonging to [master]: - #2545 - OpenModelica/OpenModelica-testsuite#987
OpenModelica · Jun 30, 2018 · 7cd71ba · 7cd71ba
1 parent 7660aa0
commit 7cd71ba
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Compiler/runtime/systemimpl.c b/Compiler/runtime/systemimpl.c
@@ -593,6 +593,9 @@ int SystemImpl__systemCall(const char* str, const char* outFile)
     if (*outFile) {
       /* redirect stdout, stderr in the fork'ed process */
       int fd = open(outFile, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
+      if (fd < 0) {
+        _exit(1);
+      }
       dup2(fd, 1);
       dup2(fd, 2);
 #if defined(__APPLE_CC__)