Revise some memory allocation routines.

* examples/aclck.c: Check return values from strdup.
* libmailutils/base/usremail.c: Likewise.
* libmailutils/mailbox/bodystruct.c: Likewise.
* lib/mailcap.c: Likewise.
* libmailutils/mailbox/mbx_default.c: Likewise.
* libmailutils/server/acl.c: Likewise.
* libmailutils/stream/logstream.c: Likewise.
* libmailutils/stream/message_stream.c: Likewise.
* libmu_argp/mu_argp.c: Likewise.
* libmu_auth/ldap.c: Likewise.
* libmu_auth/pam.c: Likewise.
* libmu_auth/sql.c: Likewise.
* libmu_sieve/comparator.c: Likewise.
* libmu_sieve/conf.c: Likewise.
* libmu_sieve/extensions/list.c: Likewise.
* libmu_sieve/extensions/vacation.c: Likewise.
* libproto/mailer/prog.c: Likewise.
* libproto/mailer/smtp_io.c: Likewise.
* maidag/lmtp.c: Likewise.
* python/libmu_py/address.c: Likewise.
* sql/odbc.c

* examples/sfrom.c (main): Avoid unnecessary memory allocation.
* libmailutils/mailbox/mailbox.c: Likewise.

* frm/frm.h: Include mailutils/alloc.h, remove xalloc.h
* mh/mh.h: Likewise.

* imap4d/imap4d.h: Remove xalloc.h
* mail/mail.h: Likewise.
* mimeview/mimeview.h: Likewise.
* mu/acl.c: Likewise.
* readmsg/readmsg.c: Likewise.

* include/mailutils/locker.h (mu_locker_set_default_external_program):
Change returned type.
* include/mailutils/mailbox.h (mu_set_folder_directory): Change
returned type.
* libmailutils/base/locker.c (mu_locker_set_default_external_program):
Return int (error code).
* libmailutils/base/tilde.c: Add extra checks
* libmailutils/mime/mimehdr.c (_mime_header_parse): Bugfix.
* mail/folders.c: Don't use alloca, use mu_alloc instead. It
was the only use of that function in Mailutils, so this change
allows to withdraw the alloca module.

* gnulib.modules (alloca, malloc)
(realloc, xalloc): Remove.

* frm/common.c: Use mu_alloc and friends instead of xmalloc.
* frm/from.c: Likewise.
* imap4d/append.c: Likewise.
* imap4d/auth_gsasl.c: Likewise.
* imap4d/authenticate.c: Likewise.
* imap4d/fetch.c: Likewise.
* imap4d/imap4d.c: Likewise.
* imap4d/io.c: Likewise.
* imap4d/list.c: Likewise.
* imap4d/namespace.c: Likewise.
* imap4d/parsebuf.c: Likewise.
* imap4d/preauth.c: Likewise.
* imap4d/rename.c: Likewise.
* imap4d/search.c: Likewise.
* imap4d/util.c: Likewise.
* libmu_argp/muinit.c: Likewise.
* mail/alias.c: Likewise.
* mail/alt.c: Likewise.
* mail/copy.c: Likewise.
* mail/decode.c: Likewise.
* mail/escape.c: Likewise.
* mail/file.c: Likewise.
* mail/from.c: Likewise.
* mail/mail.c: Likewise.
* mail/mailline.c: Likewise
* mail/mailvar.c: Likewise
* mail/msgset.y: Likewise
* mail/page.c: Likewise
* mail/send.c: Likewise
* mail/shell.c: Likewise
* mail/unset.c: Likewise
* mail/util.c: Likewise
* mh/folder.c: Likewise
* mh/mh_alias.l: Likewise
* mh/mh_alias.y: Likewise
* mh/mh_fmtgram.y: Likewise
* mh/mh_format.c: Likewise
* mh/mh_global.c: Likewise
* mh/mh_init.c: Likewise
* mh/mh_list.c: Likewise
* mh/mh_whatnow.c: Likewise
* mh/mh_whom.c: Likewise
* mh/mhn.c: Likewise
* mh/pick.y: Likewise
* mh/prompter-rl.c: Likewise
* mh/refile.c: Likewise
* mh/repl.c: Likewise
* mh/send.c: Likewise
* mh/sortm.c: Likewise
* mimeview/mimetypes.y: Likewise
* mu/dbm.c: Likewise
* mu/dispatch.c: Likewise
* mu/imap.c: Likewise
* mu/pop.c: Likewise
* mu/shell.c: Likewise
* pop3d/apop.c: Likewise
* pop3d/bulletin.c: Likewise
* pop3d/popauth.c: Likewise
* pop3d/user.c: Likewise

4 files changed, 6 insertions, 9 deletions

diff --git a/pop3d/apop.c b/pop3d/apop.c
index a4f4e122e..ee0508024 100644
--- a/pop3d/apop.c
+++ b/pop3d/apop.c
@@ -150,7 +150,7 @@ pop3d_apopuser (const char *user)
 	  {
 	    p = mu_str_skip_class (p + 1, MU_CTYPE_SPACE);
 	    if (*p)
-	      password = strdup (p);
+	      password = mu_strdup (p);
 	    break;
 	  }
       }
diff --git a/pop3d/bulletin.c b/pop3d/bulletin.c
index a51cfff71..b49155e82 100644
--- a/pop3d/bulletin.c
+++ b/pop3d/bulletin.c
@@ -22,7 +22,7 @@ static char *bulletin_db_name;
 void
 set_bulletin_db (const char *file)
 {
-  bulletin_db_name = strdup (file);
+  bulletin_db_name = mu_strdup (file);
 }
 
 static void
@@ -65,7 +65,7 @@ open_bulletin_mailbox (mu_mailbox_t *pmbox)
 int
 set_bulletin_source (const char *source)
 {
-  bulletin_mbox_name = strdup (source);
+  bulletin_mbox_name = mu_strdup (source);
   return 0;
 }
 
diff --git a/pop3d/popauth.c b/pop3d/popauth.c
index 0e110ce8f..10f352462 100644
--- a/pop3d/popauth.c
+++ b/pop3d/popauth.c
@@ -16,7 +16,6 @@
    along with GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>. */
 
 #include "pop3d.h"
-#include <xalloc.h>
 #include "mailutils/libargp.h"
 
 int db_list (char *input_name, char *output_name);
@@ -592,7 +591,7 @@ fill_pass (struct action_data *ap)
 	  if (!p)
 	    exit (EX_DATAERR);
 	  
-	  ap->passwd = strdup (p);
+	  ap->passwd = mu_strdup (p);
 	  /* TRANSLATORS: Please try to format this string so that it has
 	     the same length as the translation of 'Password:' above */
 	  rc = mu_getpass (in, out, _("Confirm :"), &p);
@@ -715,7 +714,7 @@ action_chpass (struct action_data *ap)
     {
       char *oldpass, *p;
       
-      oldpass = xmalloc (contents.mu_dsize + 1);
+      oldpass = mu_alloc (contents.mu_dsize + 1);
       memcpy (oldpass, contents.mu_dptr, contents.mu_dsize);
       oldpass[contents.mu_dsize] = 0;
       p = getpass (_("Old Password:"));
diff --git a/pop3d/user.c b/pop3d/user.c
index cc4a7994d..d68ab904e 100644
--- a/pop3d/user.c
+++ b/pop3d/user.c
@@ -49,9 +49,7 @@ pop3d_begin_session ()
       return ERR_MBOX_LOCK;
     }
   
-  username = strdup (auth_data->name);
-  if (username == NULL)
-    pop3d_abquit (ERR_NO_MEM);
+  username = mu_strdup (auth_data->name);
   state = TRANSACTION;
 
   pop3d_outf ("+OK opened mailbox for %s\n", username);