Adding upstream version 4.96.upstream/4.96upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 139 insertions, 0 deletions

diff --git a/src/dummies.c b/src/dummies.c
new file mode 100644
index 0000000..38b514b
--- /dev/null
+++ b/src/dummies.c
@@ -0,0 +1,139 @@
+/*************************************************
+*     Exim - an Internet mail transport agent    *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) The Exim Maintainers 2021 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+/* This file is not part of the main Exim code. There are little bits of test
+code for some of Exim's modules, and when they are used, the module they are
+testing may call other main Exim functions that are not available and/or
+should not be used in a test. The classic case is log_write(). This module
+contains dummy versions of such functions - well not really dummies, more like
+alternates. */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+/* We don't have the full Exim headers dragged in, but this function
+is used for debugging output. */
+
+extern gstring * string_vformat(gstring *, unsigned, const char *, va_list);
+
+
+/*************************************************
+*         Handle calls to write the log          *
+*************************************************/
+
+/* The message gets written to stderr when log_write() is called from a
+utility. The message always gets '\n' added on the end of it.
+
+Arguments:
+  selector  not relevant when running a utility
+  flags     not relevant when running a utility
+  format    a printf() format
+  ...       arguments for format
+
+Returns:    nothing
+*/
+
+void
+log_write(unsigned int selector, int flags, char *format, ...)
+{
+va_list ap;
+va_start(ap, format);
+vfprintf(stderr, format, ap);
+fprintf(stderr, "\n");
+va_end(ap);
+}
+
+
+/*************************************************
+*      Handle calls to print debug output        *
+*************************************************/
+
+/* The message just gets written to stderr.
+We use tainted memory to format into just so that we can handle
+tainted arguments.
+
+Arguments:
+  format    a printf() format
+  ...       arguments for format
+
+Returns:    nothing
+*/
+
+void
+debug_printf(char *format, ...)
+{
+va_list ap;
+rmark reset_point = store_mark();
+gstring * g = string_get_tainted(1024, TRUE);
+
+va_start(ap, format);
+
+if (!string_vformat(g, 0, format, ap))
+  {
+  char * s = "**** debug string overflowed buffer ****\n";
+  char * p = CS g->s + g->ptr;
+  int maxlen = g->size - (int)strlen(s) - 3;
+  if (p > g->s + maxlen) p = g->s + maxlen;
+  if (p > g->s && p[-1] != '\n') *p++ = '\n';
+  strcpy(p, s);
+  }
+
+fprintf(stderr, "%s", string_from_gstring(g));
+fflush(stderr);
+store_reset(reset_point);
+va_end(ap);
+}
+
+
+
+/*************************************************
+*              SIGALRM handler                   *
+*************************************************/
+
+extern int sigalrm_seen;
+
+void
+sigalrm_handler(int sig)
+{
+sigalrm_seen = TRUE;
+}
+
+
+
+/*************************************************
+*              Complete Dummies                  *
+*************************************************/
+
+int
+header_checkname(void *h, char *name, int len)
+{
+return 0;
+}
+
+void
+directory_make(char *parent, char *name, int mode, int panic)
+{
+}
+
+void
+host_build_sender_fullhost(void) { }
+
+/* This one isn't needed for test_host */
+
+#ifndef TEST_HOST
+char *
+host_ntoa(int type, const void *arg, char *buffer, int *portptr)
+{
+return NULL;
+}
+#endif
+
+
+/* End of dummies.c */