dvipdfm-x/dvi.c: improve a little

git-svn-id: svn://tug.org/texlive/trunk@38053 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 10 insertions, 6 deletions

diff --git a/Build/source/texk/dvipdfm-x/dvi.c b/Build/source/texk/dvipdfm-x/dvi.c
index a7e8e532769..0a59502db54 100644
--- a/Build/source/texk/dvipdfm-x/dvi.c
+++ b/Build/source/texk/dvipdfm-x/dvi.c
@@ -947,19 +947,23 @@ static int
 is_notdef_notzero (char *path)
 {
   FILE *f;
-  char buf[2014];
-  char cmd[512];
+  char buf[2048];
+  char *cmd;
   char *p;
   int  ret = 0;
 
-  strcpy (cmd, "t1disasm ");
-  strcat (cmd, path);
+  p = kpse_var_value("SELFAUTOLOC");
+  if (p == NULL)
+    return ret;
+  cmd = concat3 (p, "/t1disasm ", path);
+  free (p);
   f = popen (cmd, "r");
+  free (cmd);
   if (f) {
-    while ((fgets (buf, 2000, f))) {
+    while ((fgets (buf, 2047, f))) {
       p = strstr (buf, "CharStrings");
       if (p) {
-        fgets (buf, 2000, f);
+        fgets (buf, 2047, f);
         if (strncmp (buf, "/.notdef", 8) != 0)
           ret = 1;
         break;