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authorEduardo Chappa <echappa@gmx.com>2013-02-03 00:59:38 -0700
committerEduardo Chappa <echappa@gmx.com>2013-02-03 00:59:38 -0700
commit094ca96844842928810f14844413109fc6cdd890 (patch)
treee60efbb980f38ba9308ccb4fb2b77b87bbc115f3 /imap/src/osdep/nt/dummynt.c
downloadalpine-094ca96844842928810f14844413109fc6cdd890.tar.xz
Initial Alpine Version
Diffstat (limited to 'imap/src/osdep/nt/dummynt.c')
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diff --git a/imap/src/osdep/nt/dummynt.c b/imap/src/osdep/nt/dummynt.c
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+/* ========================================================================
+ * Copyright 1988-2007 University of Washington
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *
+ * ========================================================================
+ */
+
+/*
+ * Program: Dummy routines for NT
+ *
+ * Author: Mark Crispin
+ * Networks and Distributed Computing
+ * Computing & Communications
+ * University of Washington
+ * Administration Building, AG-44
+ * Seattle, WA 98195
+ * Internet: MRC@CAC.Washington.EDU
+ *
+ * Date: 24 May 1993
+ * Last Edited: 1 June 2007
+ */
+
+
+#include <ctype.h>
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <direct.h>
+#include "mail.h"
+#include "osdep.h"
+#include <sys\stat.h>
+#include <dos.h>
+#include "dummy.h"
+#include "misc.h"
+
+/* Function prototypes */
+
+DRIVER *dummy_valid (char *name);
+void *dummy_parameters (long function,void *value);
+void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
+ long level);
+long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
+ long attributes,char *contents);
+long dummy_subscribe (MAILSTREAM *stream,char *mailbox);
+MAILSTREAM *dummy_open (MAILSTREAM *stream);
+void dummy_close (MAILSTREAM *stream,long options);
+long dummy_ping (MAILSTREAM *stream);
+void dummy_check (MAILSTREAM *stream);
+long dummy_expunge (MAILSTREAM *stream,char *sequence,long options);
+long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
+long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
+
+/* Dummy routines */
+
+
+/* Driver dispatch used by MAIL */
+
+DRIVER dummydriver = {
+ "dummy", /* driver name */
+ DR_LOCAL|DR_MAIL, /* driver flags */
+ (DRIVER *) NIL, /* next driver */
+ dummy_valid, /* mailbox is valid for us */
+ dummy_parameters, /* manipulate parameters */
+ dummy_scan, /* scan mailboxes */
+ dummy_list, /* list mailboxes */
+ dummy_lsub, /* list subscribed mailboxes */
+ dummy_subscribe, /* subscribe to mailbox */
+ NIL, /* unsubscribe from mailbox */
+ dummy_create, /* create mailbox */
+ dummy_delete, /* delete mailbox */
+ dummy_rename, /* rename mailbox */
+ mail_status_default, /* status of mailbox */
+ dummy_open, /* open mailbox */
+ dummy_close, /* close mailbox */
+ NIL, /* fetch message "fast" attributes */
+ NIL, /* fetch message flags */
+ NIL, /* fetch overview */
+ NIL, /* fetch message structure */
+ NIL, /* fetch header */
+ NIL, /* fetch text */
+ NIL, /* fetch message data */
+ NIL, /* unique identifier */
+ NIL, /* message number from UID */
+ NIL, /* modify flags */
+ NIL, /* per-message modify flags */
+ NIL, /* search for message based on criteria */
+ NIL, /* sort messages */
+ NIL, /* thread messages */
+ dummy_ping, /* ping mailbox to see if still alive */
+ dummy_check, /* check for new messages */
+ dummy_expunge, /* expunge deleted messages */
+ dummy_copy, /* copy messages to another mailbox */
+ dummy_append, /* append string message to mailbox */
+ NIL /* garbage collect stream */
+};
+
+
+ /* prototype stream */
+MAILSTREAM dummyproto = {&dummydriver};
+
+/* Dummy validate mailbox
+ * Accepts: mailbox name
+ * Returns: our driver if name is valid, NIL otherwise
+ */
+
+DRIVER *dummy_valid (char *name)
+{
+ char *s,*t,tmp[MAILTMPLEN];
+ struct stat sbuf;
+ /* must be valid local mailbox */
+ if (name && *name && (*name != '{') && (s = mailboxfile (tmp,name))) {
+ /* indeterminate INBOX */
+ if (!*s) return &dummydriver;
+ /* remove trailing \ */
+ if ((t = strrchr (s,'\\')) && !t[1]) *t = '\0';
+ if (!stat (s,&sbuf)) switch (sbuf.st_mode & S_IFMT) {
+ case S_IFREG: /* file */
+ case S_IFDIR: /* future use */
+ return &dummydriver;
+ }
+ }
+ return NIL;
+}
+
+
+/* Dummy manipulate driver parameters
+ * Accepts: function code
+ * function-dependent value
+ * Returns: function-dependent return value
+ */
+
+void *dummy_parameters (long function,void *value)
+{
+ return NIL;
+}
+
+/* Dummy scan mailboxes
+ * Accepts: mail stream
+ * reference
+ * pattern to search
+ * string to scan
+ */
+
+void dummy_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
+{
+ char *s,test[MAILTMPLEN],file[MAILTMPLEN];
+ long i = 0;
+ if (!pat || !*pat) { /* empty pattern? */
+ if (dummy_canonicalize (test,ref,"*")) {
+ /* tie off name at root */
+ if (s = strchr (test,'\\')) *++s = '\0';
+ else test[0] = '\0';
+ dummy_listed (stream,'\\',test,LATT_NOSELECT,NIL);
+ }
+ }
+ /* get canonical form of name */
+ else if (dummy_canonicalize (test,ref,pat)) {
+ /* found any wildcards? */
+ if (s = strpbrk (test,"%*")) {
+ /* yes, copy name up to that point */
+ strncpy (file,test,(size_t) (i = s - test));
+ file[i] = '\0'; /* tie off */
+ }
+ else strcpy (file,test); /* use just that name then */
+ /* find directory name */
+ if (s = strrchr (file,'\\')) {
+ *++s = '\0'; /* found, tie off at that point */
+ s = file;
+ }
+ /* silly case */
+ else if (file[0] == '#') s = file;
+ /* do the work */
+ dummy_list_work (stream,s,test,contents,0);
+ if (pmatch ("INBOX",test)) /* always an INBOX */
+ dummy_listed (stream,NIL,"INBOX",LATT_NOINFERIORS,contents);
+ }
+}
+
+/* Dummy list mailboxes
+ * Accepts: mail stream
+ * reference
+ * pattern to search
+ */
+
+void dummy_list (MAILSTREAM *stream,char *ref,char *pat)
+{
+ dummy_scan (stream,ref,pat,NIL);
+}
+
+
+/* Dummy list subscribed mailboxes
+ * Accepts: mail stream
+ * reference
+ * pattern to search
+ */
+
+void dummy_lsub (MAILSTREAM *stream,char *ref,char *pat)
+{
+ void *sdb = NIL;
+ char *s,*t,test[MAILTMPLEN];
+ int showuppers = pat[strlen (pat) - 1] == '%';
+ /* get canonical form of name */
+ if (dummy_canonicalize (test,ref,pat) && (s = sm_read (&sdb))) do
+ if (*s != '{') {
+ if (pmatch_full (s,test,'\\')) {
+ if (pmatch (s,"INBOX")) mm_lsub (stream,NIL,s,LATT_NOINFERIORS);
+ else mm_lsub (stream,'\\',s,NIL);
+ }
+ else while (showuppers && (t = strrchr (s,'\\'))) {
+ *t = '\0'; /* tie off the name */
+ if (pmatch_full (s,test,'\\')) mm_lsub (stream,'\\',s,LATT_NOSELECT);
+ }
+ }
+ while (s = sm_read (&sdb)); /* until no more subscriptions */
+}
+
+
+/* Dummy subscribe to mailbox
+ * Accepts: mail stream
+ * mailbox to add to subscription list
+ * Returns: T on success, NIL on failure
+ */
+
+long dummy_subscribe (MAILSTREAM *stream,char *mailbox)
+{
+ char *s,tmp[MAILTMPLEN];
+ struct stat sbuf;
+ /* must be valid local mailbox */
+ if ((s = mailboxfile (tmp,mailbox)) && *s && !stat (s,&sbuf) &&
+ ((sbuf.st_mode & S_IFMT) == S_IFREG)) return sm_subscribe (mailbox);
+ sprintf (tmp,"Can't subscribe %.80s: not a mailbox",mailbox);
+ mm_log (tmp,ERROR);
+ return NIL;
+}
+
+/* Dummy list mailboxes worker routine
+ * Accepts: mail stream
+ * directory name to search
+ * search pattern
+ * string to scan
+ * search level
+ */
+
+void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
+ long level)
+{
+ struct _finddata_t f;
+ struct stat sbuf;
+ long fhandle;
+ char tmp[MAILTMPLEN];
+ size_t len = 0;
+ /* punt if bogus name */
+ if (!mailboxdir (tmp,dir,NIL)) return;
+ /* make directory wildcard */
+ strcat (tmp,(tmp[strlen (tmp) -1] == '\\') ? "*.*" : "\\*.*");
+ /* do nothing if can't open directory */
+ if ((fhandle = _findfirst (tmp,&f)) >= 0) {
+ /* list it if at top-level */
+ if (!level && dir && pmatch_full (dir,pat,'\\'))
+ dummy_listed (stream,'\\',dir,LATT_NOSELECT,contents);
+ /* scan directory */
+ if (!dir || dir[(len = strlen (dir)) - 1] == '\\') do
+ if (((f.name[0] != '.') ||
+ (f.name[1] && ((f.name[1] != '.') || f.name[2]))) &&
+ ((len + strlen (f.name)) <= NETMAXMBX)) {
+ /* see if name is useful */
+ if (dir) sprintf (tmp,"%s%s",dir,f.name);
+ else strcpy (tmp,f.name);
+ /* make sure useful and can get info */
+ if ((pmatch_full (tmp,pat,'\\') ||
+ pmatch_full (strcat (tmp,"\\"),pat,'\\') ||
+ dmatch (tmp,pat,'\\')) &&
+ mailboxdir (tmp,dir,f.name) && tmp[0] && !stat (tmp,&sbuf)) {
+ /* now make name we'd return */
+ if (dir) sprintf (tmp,"%s%s",dir,f.name);
+ else strcpy (tmp,f.name);
+ /* only interested in file type */
+ switch (sbuf.st_mode & S_IFMT) {
+ case S_IFDIR: /* directory? */
+ if (pmatch_full (tmp,pat,'\\')) {
+ if (!dummy_listed (stream,'\\',tmp,LATT_NOSELECT,contents))break;
+ strcat (tmp,"\\");/* set up for dmatch call */
+ }
+ /* try again with trailing \ */
+ else if (pmatch_full (strcat (tmp,"\\"),pat,'\\') &&
+ !dummy_listed (stream,'\\',tmp,LATT_NOSELECT,contents))
+ break;
+ if (dmatch (tmp,pat,'\\') &&
+ (level < (long) mail_parameters (NIL,GET_LISTMAXLEVEL,NIL)))
+ dummy_list_work (stream,tmp,pat,contents,level+1);
+ break;
+ case S_IFREG: /* ordinary name */
+ if (pmatch_full (tmp,pat,'\\') && !pmatch ("INBOX",tmp))
+ dummy_listed (stream,'\\',tmp,LATT_NOINFERIORS,contents);
+ break;
+ }
+ }
+ }
+ while (!_findnext (fhandle,&f));
+ _findclose(fhandle);
+ }
+}
+
+/* Mailbox found
+ * Accepts: hierarchy delimiter
+ * mailbox name
+ * attributes
+ * contents to search before calling mm_list()
+ * Returns: T, always
+ */
+
+#define BUFSIZE 4*MAILTMPLEN
+
+long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
+ long attributes,char *contents)
+{
+ struct stat sbuf;
+ struct _finddata_t f;
+ int fd,nochild;
+ long fhandle,csiz,ssiz,bsiz;
+ char *s,*buf,tmp[MAILTMPLEN];
+ /* if not \NoInferiors */
+ if (!(attributes & LATT_NOINFERIORS) && mailboxdir (tmp,name,NIL) &&
+ strcat (tmp,(tmp[strlen (tmp) -1] == '\\') ? "*.*" : "\\*.*") &&
+ ((fhandle = _findfirst (tmp,&f)) >= 0)) {
+ nochild = T;
+ do if ((f.name[0] != '.') || (f.name[1] && ((f.name[1] != '.') ||
+ f.name[2]))) nochild = NIL;
+ while (nochild && !_findnext (fhandle,&f));
+ attributes |= nochild ? LATT_HASNOCHILDREN : LATT_HASCHILDREN;
+ _findclose (fhandle); /* all done, flush directory */
+ }
+ if (contents) { /* want to search contents? */
+ /* forget it if can't select or open */
+ if ((attributes & LATT_NOSELECT) || !(csiz = strlen (contents)) ||
+ !(s = dummy_file (tmp,name)) || stat (s,&sbuf) ||
+ (csiz > sbuf.st_size) || ((fd = open (tmp,O_RDONLY,NIL)) < 0))
+ return T;
+ /* get buffer including slop */
+ buf = (char *) fs_get (BUFSIZE + (ssiz = 4 * ((csiz / 4) + 1)) + 1);
+ memset (buf,'\0',ssiz); /* no slop area the first time */
+ while (sbuf.st_size) { /* until end of file */
+ read (fd,buf+ssiz,bsiz = min (sbuf.st_size,BUFSIZE));
+ if (search ((unsigned char *) buf,bsiz+ssiz,
+ (unsigned char *) contents,csiz)) break;
+ memcpy (buf,buf+BUFSIZE,ssiz);
+ sbuf.st_size -= bsiz; /* note that we read that much */
+ }
+ fs_give ((void **) &buf); /* flush buffer */
+ close (fd); /* finished with file */
+ if (!sbuf.st_size) return T;/* not found */
+ }
+ /* notify main program */
+ mm_list (stream,delimiter,name,attributes);
+ return T;
+}
+
+/* Dummy create mailbox
+ * Accepts: mail stream
+ * mailbox name to create
+ * Returns: T on success, NIL on failure
+ */
+
+long dummy_create (MAILSTREAM *stream,char *mailbox)
+{
+ char tmp[MAILTMPLEN];
+ if (compare_cstring (mailbox,"INBOX") && dummy_file (tmp,mailbox))
+ return dummy_create_path (stream,tmp,NIL);
+ sprintf (tmp,"Can't create %.80s: invalid name",mailbox);
+ mm_log (tmp,ERROR);
+ return NIL;
+}
+
+
+/* Dummy create path
+ * Accepts: mail stream
+ * path name to create
+ * directory mode
+ * Returns: T on success, NIL on failure
+ */
+
+long dummy_create_path (MAILSTREAM *stream,char *path,long dirmode)
+{
+ struct stat sbuf;
+ char c,*s,tmp[MAILTMPLEN];
+ int fd;
+ long ret = NIL;
+ char *t = strrchr (path,'\\');
+ char *pt = (path[1] == ':') ? path + 2 : path;
+ int wantdir = t && !t[1];
+ if (wantdir) *t = '\0'; /* flush trailing delimiter for directory */
+ /* found superior to this name? */
+ if ((s = strrchr (pt,'\\')) && (s != pt)) {
+ strncpy (tmp,path,(size_t) (s - path));
+ tmp[s - path] = '\0'; /* make directory name for stat */
+ c = *++s; /* tie off in case need to recurse */
+ *s = '\0';
+ /* name doesn't exist, create it */
+ if ((stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
+ !dummy_create_path (stream,path,dirmode)) return NIL;
+ *s = c; /* restore full name */
+ }
+ if (wantdir) { /* want to create directory? */
+ ret = !mkdir (path);
+ *t = '\\'; /* restore directory delimiter */
+ }
+ /* create file */
+ else if ((fd = open (path,O_WRONLY|O_CREAT|O_EXCL,S_IREAD|S_IWRITE)) >= 0)
+ ret = !close (fd); /* close file */
+ if (!ret) { /* error? */
+ sprintf (tmp,"Can't create mailbox node %.80s: %.80s",path,
+ strerror (errno));
+ mm_log (tmp,ERROR);
+ }
+ return ret; /* return status */
+}
+
+/* Dummy delete mailbox
+ * Accepts: mail stream
+ * mailbox name to delete
+ * Returns: T on success, NIL on failure
+ */
+
+long dummy_delete (MAILSTREAM *stream,char *mailbox)
+{
+ struct stat sbuf;
+ char *s,tmp[MAILTMPLEN];
+ if (!(s = dummy_file (tmp,mailbox))) {
+ sprintf (tmp,"Can't delete - invalid name: %.80s",s);
+ mm_log (tmp,ERROR);
+ }
+ /* no trailing \ */
+ if ((s = strrchr (tmp,'\\')) && !s[1]) *s = '\0';
+ if (stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) == S_IFDIR) ?
+ rmdir (tmp) : unlink (tmp)) {
+ sprintf (tmp,"Can't delete mailbox %.80s: %.80s",mailbox,strerror (errno));
+ mm_log (tmp,ERROR);
+ return NIL;
+ }
+ return T; /* return success */
+}
+
+
+/* Mail rename mailbox
+ * Accepts: mail stream
+ * old mailbox name
+ * new mailbox name
+ * Returns: T on success, NIL on failure
+ */
+
+long dummy_rename (MAILSTREAM *stream,char *old,char *newname)
+{
+ struct stat sbuf;
+ char c,*s,tmp[MAILTMPLEN],mbx[MAILTMPLEN],oldname[MAILTMPLEN];
+ long ret = NIL;
+ /* no trailing \ allowed */
+ if (!dummy_file (oldname,old) || !(s = dummy_file (mbx,newname)) ||
+ stat (oldname,&sbuf) || ((s = strrchr (s,'\\')) && !s[1] &&
+ ((sbuf.st_mode & S_IFMT) != S_IFDIR))) {
+ sprintf (mbx,"Can't rename %.80s to %.80s: invalid name",old,newname);
+ mm_log (mbx,ERROR);
+ return NIL;
+ }
+ if (s) { /* found a directory delimiter? */
+ if (!s[1]) *s = '\0'; /* ignore trailing delimiter */
+ /* found superior to destination name? */
+ else if ((s != mbx) && ((mbx[1] != ':') || (s != mbx + 2))) {
+ c = s[1]; /* remember character after delimiter */
+ *s = s[1] = '\0'; /* tie off name at delimiter */
+ /* name doesn't exist, create it */
+ if (stat (mbx,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) {
+ *s = '\\'; /* restore delimiter */
+ if (!dummy_create (stream,mbx)) return NIL;
+ }
+ else *s = '\\'; /* restore delimiter */
+ s[1] = c; /* restore character after delimiter */
+ }
+ }
+ /* rename of non-ex INBOX creates dest */
+ if (!compare_cstring (old,"INBOX") && stat (oldname,&sbuf))
+ return dummy_create (NIL,mbx);
+ if (rename (oldname,mbx)) {
+ sprintf (tmp,"Can't rename mailbox %.80s to %.80s: %.80s",old,newname,
+ strerror (errno));
+ mm_log (tmp,ERROR);
+ return NIL;
+ }
+ return LONGT; /* return success */
+}
+
+/* Dummy open
+ * Accepts: stream to open
+ * Returns: stream on success, NIL on failure
+ */
+
+MAILSTREAM *dummy_open (MAILSTREAM *stream)
+{
+ int fd;
+ char err[MAILTMPLEN],tmp[MAILTMPLEN];
+ struct stat sbuf;
+ /* OP_PROTOTYPE call */
+ if (!stream) return &dummyproto;
+ err[0] = '\0'; /* no error message yet */
+ /* can we open the file? */
+ if (!dummy_file (tmp,stream->mailbox))
+ sprintf (err,"Can't open this name: %.80s",stream->mailbox);
+ else if ((fd = open (tmp,O_RDONLY,NIL)) < 0) {
+ /* no, error unless INBOX */
+ if (compare_cstring (stream->mailbox,"INBOX"))
+ sprintf (err,"%.80s: %.80s",strerror (errno),stream->mailbox);
+ }
+ else { /* file had better be empty then */
+ fstat (fd,&sbuf); /* sniff at its size */
+ close (fd);
+ if (sbuf.st_size) /* bogus format if non-empty */
+ sprintf (err,"%.80s (file %.80s) is not in valid mailbox format",
+ stream->mailbox,tmp);
+ }
+ if (err[0]) { /* if an error happened */
+ mm_log (err,stream->silent ? WARN : ERROR);
+ return NIL;
+ }
+ else if (!stream->silent) { /* only if silence not requested */
+ mail_exists (stream,0); /* say there are 0 messages */
+ mail_recent (stream,0); /* and certainly no recent ones! */
+ stream->uid_validity = (unsigned long) time (0);
+ }
+ stream->inbox = T; /* note that it's an INBOX */
+ return stream; /* return success */
+}
+
+
+/* Dummy close
+ * Accepts: MAIL stream
+ * options
+ */
+
+void dummy_close (MAILSTREAM *stream,long options)
+{
+ /* return silently */
+}
+
+/* Dummy ping mailbox
+ * Accepts: MAIL stream
+ * Returns: T if stream alive, else NIL
+ */
+
+long dummy_ping (MAILSTREAM *stream)
+{
+ MAILSTREAM *test;
+ /* time to do another test? */
+ if (time (0) >= ((time_t) (stream->gensym + 30))) {
+ /* has mailbox format changed? */
+ if ((test = mail_open (NIL,stream->mailbox,OP_PROTOTYPE)) &&
+ (test->dtb != stream->dtb) &&
+ (test = mail_open (NIL,stream->mailbox,NIL))) {
+ /* preserve some resources */
+ test->original_mailbox = stream->original_mailbox;
+ stream->original_mailbox = NIL;
+ test->sparep = stream->sparep;
+ stream->sparep = NIL;
+ test->sequence = stream->sequence;
+ mail_close ((MAILSTREAM *) /* flush resources used by dummy stream */
+ memcpy (fs_get (sizeof (MAILSTREAM)),stream,
+ sizeof (MAILSTREAM)));
+ /* swap the streams */
+ memcpy (stream,test,sizeof (MAILSTREAM));
+ fs_give ((void **) &test);/* flush test now that copied */
+ /* make sure application knows */
+ mail_exists (stream,stream->recent = stream->nmsgs);
+ }
+ /* still hasn't changed */
+ else stream->gensym = (unsigned long) time (0);
+ }
+ return T;
+}
+
+
+/* Dummy check mailbox
+ * Accepts: MAIL stream
+ * No-op for readonly files, since read/writer can expunge it from under us!
+ */
+
+void dummy_check (MAILSTREAM *stream)
+{
+ dummy_ping (stream); /* invoke ping */
+}
+
+
+/* Dummy expunge mailbox
+ * Accepts: MAIL stream
+ * sequence to expunge if non-NIL
+ * expunge options
+ * Returns: T, always
+ */
+
+long dummy_expunge (MAILSTREAM *stream,char *sequence,long options)
+{
+ return LONGT;
+}
+
+/* Dummy copy message(s)
+ * Accepts: MAIL stream
+ * sequence
+ * destination mailbox
+ * options
+ * Returns: T if copy successful, else NIL
+ */
+
+long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
+{
+ if ((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
+ mail_sequence (stream,sequence)) fatal ("Impossible dummy_copy");
+ return NIL;
+}
+
+
+/* Dummy append message string
+ * Accepts: mail stream
+ * destination mailbox
+ * append callback function
+ * data for callback
+ * Returns: T on success, NIL on failure
+ */
+
+long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
+{
+ struct stat sbuf;
+ int fd = -1;
+ int e;
+ char tmp[MAILTMPLEN];
+ MAILSTREAM *ts = default_proto (T);
+ if (compare_cstring (mailbox,"INBOX") && dummy_file (tmp,mailbox) &&
+ ((fd = open (tmp,O_RDONLY,NIL)) < 0)) {
+ if ((e = errno) == ENOENT) /* failed, was it no such file? */
+ mm_notify (stream,"[TRYCREATE] Must create mailbox before append",
+ (long) NIL);
+ sprintf (tmp,"%.80s: %.80s",strerror (e),mailbox);
+ mm_log (tmp,ERROR); /* pass up error */
+ return NIL; /* always fails */
+ }
+ if (fd >= 0) { /* found file? */
+ fstat (fd,&sbuf); /* get its size */
+ close (fd); /* toss out the fd */
+ if (sbuf.st_size) ts = NIL; /* non-empty file? */
+ }
+ if (ts) return (*ts->dtb->append) (stream,mailbox,af,data);
+ sprintf (tmp,"Indeterminate mailbox format: %.80s",mailbox);
+ mm_log (tmp,ERROR);
+ return NIL;
+}
+
+/* Dummy mail generate file string
+ * Accepts: temporary buffer to write into
+ * mailbox name string
+ * Returns: local file string or NIL if failure
+ */
+
+char *dummy_file (char *dst,char *name)
+{
+ char *s = mailboxfile (dst,name);
+ /* return our standard inbox */
+ return (s && !*s) ? strcpy (dst,sysinbox ()) : s;
+}
+
+
+/* Dummy canonicalize name
+ * Accepts: buffer to write name
+ * reference
+ * pattern
+ * Returns: T if success, NIL if failure
+ */
+
+long dummy_canonicalize (char *tmp,char *ref,char *pat)
+{
+ unsigned long i;
+ char *s,dev[4];
+ /* initially no device */
+ dev[0] = dev[1] = dev[2] = dev[3] = '\0';
+ if (ref) switch (*ref) { /* preliminary reference check */
+ case '{': /* remote names not allowed */
+ return NIL; /* disallowed */
+ case '\0': /* empty reference string */
+ break;
+ default: /* all other names */
+ if (ref[1] == ':') { /* start with device name? */
+ dev[0] = *ref++; dev[1] = *ref++;
+ }
+ break;
+ }
+ if (pat[1] == ':') { /* device name in pattern? */
+ dev[0] = *pat++; dev[1] = *pat++;
+ ref = NIL; /* ignore reference */
+ }
+ switch (*pat) {
+ case '#': /* namespace names */
+ if (mailboxfile (tmp,pat)) strcpy (tmp,pat);
+ else return NIL; /* unknown namespace */
+ break;
+ case '{': /* remote names not allowed */
+ return NIL;
+ case '\\': /* rooted name */
+ ref = NIL; /* ignore reference */
+ break;
+ }
+ /* make sure device names are rooted */
+ if (dev[0] && (*(ref ? ref : pat) != '\\')) dev[2] = '\\';
+ /* build name */
+ sprintf (tmp,"%s%s%s",dev,ref ? ref : "",pat);
+ ucase (tmp); /* force upper case */
+ /* count wildcards */
+ for (i = 0, s = tmp; *s; *s++) if ((*s == '*') || (*s == '%')) ++i;
+ if (i > MAXWILDCARDS) { /* ridiculous wildcarding? */
+ MM_LOG ("Excessive wildcards in LIST/LSUB",ERROR);
+ return NIL;
+ }
+ return T;
+}