check return value of m_getfld2 befor using the field

this bug causes a segfault, because the field.value is a
nullptr if FILEEOF2 is returned.

diff --git a/uip/distsbr.c b/uip/distsbr.c
index 9c20fda..058875c 100644 (file)
--- a/uip/distsbr.c
+++ b/uip/distsbr.c
@@ -182,10 +182,10 @@ ready_msg(char *msgnam)
                                return NOTOK;
                        }
                        unlink(tmpfil);
                                return NOTOK;
                        }
                        unlink(tmpfil);

-                       fprintf(ofp, "\n%s", f.value);
+                       fputs("\n", ofp);

                        while (state == BODY2) {
                        while (state == BODY2) {

-                               state = m_getfld2(state, &f, ifp);

                                fputs(f.value, ofp);
                                fputs(f.value, ofp);

+                               state = m_getfld2(state, &f, ifp);

                        }
                        /* FALL */
 
                        }
                        /* FALL */