Fix multi-leg promotions

[xboard.git] / usystem.c

diff --git a/usystem.c b/usystem.c
index 572b910..743c701 100644 (file)
--- a/usystem.c
+++ b/usystem.c
@@ -519,18 +519,25 @@ DestroyChildProcess (ProcRef pr, int signalType)
 char *
 BufferCommandOutput (char *command, int size)
 {
-    ChildProc *pr;
     char *res = (char *) calloc(1, size);
     if(res) {
        int count;
        FILE *f;
+#if 0
+       ChildProc *pr;
        StartChildProcess(command, ".", (ProcRef) &pr);    // run command in daughter process
        f = fdopen(pr->fdFrom, "r");
        count = fread(res, 1, size-1, f);  // read its output
        fclose(f);
-       res[count > 0 ? count : 0] = NULLCHAR;  
        DestroyChildProcess((ProcRef) pr, 9);
        free(pr);
+#else
+       f = popen(command, "r");
+       if(!f) return res;
+       count = fread(res, 1, size-1, f);  // read its output
+       pclose(f);
+#endif
+       res[count > 0 ? count : 0] = NULLCHAR;  
     }
     return res; // return buffer with output
 }