Prefer stpcpy to strcat

* admin/merge-gnulib (GNULIB_MODULES): Add stpcpy.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/stpcpy.c, m4/stpcpy.m4: New files, from gnulib.
* lib-src/ebrowse.c (sym_scope_1, operator_name, open_file):
* lib-src/emacsclient.c (get_server_config, set_local_socket)
(start_daemon_and_retry_set_socket):
* lib-src/etags.c (main, C_entries, relative_filename):
* lib-src/pop.c (sendline):
* lib-src/update-game-score.c (main):
* lwlib/xlwmenu.c (resource_widget_value):
* src/callproc.c (child_setup):
* src/dbusbind.c (xd_signature_cat):
* src/doc.c (get_doc_string, Fsnarf_documentation):
* src/editfns.c (Fuser_full_name):
* src/frame.c (xrdb_get_resource):
* src/gtkutil.c (xg_get_file_with_chooser):
* src/tparam.c (tparam1):
* src/xfns.c (xic_create_fontsetname):
* src/xrdb.c (gethomedir, get_user_db, get_environ_db):
* src/xsmfns.c (smc_save_yourself_CB):
Rewrite to avoid the need for strcat, typically by using stpcpy
and/or lispstpcpy.  strcat tends to be part of O(N**2) algorithms.
* src/doc.c (sibling_etc):
* src/xrdb.c (xdefaults):
Now a top-level static constant.

1 files changed, 1 insertions, 2 deletions

diff --git a/lib-src/pop.c b/lib-src/pop.c
index ffe16c5f911..70011504a34 100644
--- a/lib-src/pop.c
+++ b/lib-src/pop.c
@@ -1397,8 +1397,7 @@ sendline (popserver server, const char *line)
      over a few dozen messages, and is a big chunk of the time we
      spend fetching mail from a server close by.  */
   buf = alloca (strlen (line) + 3);
-  strcpy (buf, line);
-  strcat (buf, "\r\n");
+  strcpy (stpcpy (buf, line), "\r\n");
   ret = fullwrite (server->file, buf, strlen (buf));
 
   if (ret < 0)