--- /dev/null
+/* ========================================================================
+ * 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
+ *
+ * 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: 9 May 1991
+ * Last Edited: 1 June 2007
+ */
+
+
+#include <stdio.h>
+#include <ctype.h>
+#include <errno.h>
+extern int errno; /* just in case */
+#include "mail.h"
+#include "osdep.h"
+#include <pwd.h>
+#include <sys/stat.h>
+#include "dummy.h"
+#include "misc.h"
+\f
+/* 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);
+\f
+/* 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};
+\f
+/* Dummy validate mailbox
+ * Accepts: mailbox name
+ * Returns: our driver if name is valid, NIL otherwise
+ */
+
+DRIVER *dummy_valid (char *name)
+{
+ char *s,tmp[MAILTMPLEN];
+ struct stat sbuf;
+ /* must be valid local mailbox */
+ if (name && *name && (*name != '{') && (s = mailboxfile (tmp,name))) {
+ /* indeterminate clearbox INBOX */
+ if (!*s) return &dummydriver;
+ else if (!stat (s,&sbuf)) switch (sbuf.st_mode & S_IFMT) {
+ case S_IFREG:
+ case S_IFDIR:
+ return &dummydriver;
+ }
+ /* blackbox INBOX does not exist yet */
+ else if (!compare_cstring (name,"INBOX")) 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)
+{
+ void *ret = NIL;
+ switch ((int) function) {
+ case GET_INBOXPATH:
+ if (value) ret = dummy_file ((char *) value,"INBOX");
+ break;
+ }
+ return ret;
+}
+\f
+/* Dummy scan mailboxes
+ * Accepts: mail stream
+ * reference
+ * pattern to search
+ * string to scan
+ */
+
+void dummy_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
+{
+ DRIVER *drivers;
+ char *s,test[MAILTMPLEN],file[MAILTMPLEN];
+ long i;
+ 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,i = s - test);
+ file[i] = '\0'; /* tie off */
+ }
+ else strcpy (file,test); /* use just that name then */
+ if (s = strrchr (file,'/')){/* find directory name */
+ *++s = '\0'; /* found, tie off at that point */
+ s = file;
+ }
+ /* silly case */
+ else if ((file[0] == '~') || (file[0] == '#')) s = file;
+ /* do the work */
+ dummy_list_work (stream,s,test,contents,0);
+ /* always an INBOX */
+ if (pmatch ("INBOX",ucase (test))) {
+ /* done if have a dirfmt INBOX */
+ for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL);
+ drivers && !(!(drivers->flags & DR_DISABLE) &&
+ (drivers->flags & DR_DIRFMT) &&
+ (*drivers->valid) ("INBOX")); drivers = drivers->next);
+ /* list INBOX appropriately */
+ dummy_listed (stream,drivers ? '/' : NIL,"INBOX",
+ drivers ? NIL : 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);
+}
+\f
+/* 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],tmp[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 (!compare_cstring (s,"INBOX") &&
+ pmatch ("INBOX",ucase (strcpy (tmp,test))))
+ mm_lsub (stream,NIL,s,LATT_NOINFERIORS);
+ else if (pmatch_full (s,test,'/')) 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))
+ switch (sbuf.st_mode & S_IFMT) {
+ case S_IFDIR: /* allow but snarl */
+ sprintf (tmp,"CLIENT BUG DETECTED: subscribe of non-mailbox directory %.80s",
+ mailbox);
+ MM_NOTIFY (stream,tmp,WARN);
+ case S_IFREG:
+ return sm_subscribe (mailbox);
+ }
+ sprintf (tmp,"Can't subscribe %.80s: not a mailbox",mailbox);
+ MM_LOG (tmp,ERROR);
+ return NIL;
+}
+\f
+/* 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)
+{
+ DRIVER *drivers;
+ dirfmttest_t dt;
+ DIR *dp;
+ struct direct *d;
+ struct stat sbuf;
+ char tmp[MAILTMPLEN],path[MAILTMPLEN];
+ size_t len = 0;
+ /* punt if bogus name */
+ if (!mailboxdir (tmp,dir,NIL)) return;
+ if (dp = opendir (tmp)) { /* do nothing if can't open directory */
+ /* see if a non-namespace directory format */
+ for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
+ dir && !dt && drivers; drivers = drivers->next)
+ if (!(drivers->flags & DR_DISABLE) && (drivers->flags & DR_DIRFMT) &&
+ (*drivers->valid) (dir))
+ dt = mail_parameters ((*drivers->open) (NIL),GET_DIRFMTTEST,NIL);
+ /* list it if at top-level */
+ if (!level && dir && pmatch_full (dir,pat,'/') && !pmatch (dir,"INBOX"))
+ dummy_listed (stream,'/',dir,dt ? NIL : LATT_NOSELECT,contents);
+\f
+ /* scan directory, ignore . and .. */
+ if (!dir || dir[(len = strlen (dir)) - 1] == '/') while (d = readdir (dp))
+ if ((!(dt && (*dt) (d->d_name))) &&
+ ((d->d_name[0] != '.') ||
+ (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
+ (d->d_name[1] && (((d->d_name[1] != '.') || d->d_name[2]))))) &&
+ ((len + strlen (d->d_name)) <= NETMAXMBX)) {
+ /* see if name is useful */
+ if (dir) sprintf (tmp,"%s%s",dir,d->d_name);
+ else strcpy (tmp,d->d_name);
+ /* make sure useful and can get info */
+ if ((pmatch_full (strcpy (path,tmp),pat,'/') ||
+ pmatch_full (strcat (path,"/"),pat,'/') ||
+ dmatch (path,pat,'/')) &&
+ mailboxdir (path,dir,"x") && (len = strlen (path)) &&
+ strcpy (path+len-1,d->d_name) && !stat (path,&sbuf)) {
+ /* only interested in file type */
+ switch (sbuf.st_mode & S_IFMT) {
+ case S_IFDIR: /* directory? */
+ /* form with trailing / */
+ sprintf (path,"%s/",tmp);
+ /* skip listing if INBOX */
+ if (!pmatch (tmp,"INBOX")) {
+ if (pmatch_full (tmp,pat,'/')) {
+ if (!dummy_listed (stream,'/',tmp,LATT_NOSELECT,contents))
+ break;
+ }
+ /* try again with trailing / */
+ else if (pmatch_full (path,pat,'/') &&
+ !dummy_listed (stream,'/',path,LATT_NOSELECT,contents))
+ break;
+ }
+ if (dmatch (path,pat,'/') &&
+ (level < (long) mail_parameters (NIL,GET_LISTMAXLEVEL,NIL)))
+ dummy_list_work (stream,path,pat,contents,level+1);
+ break;
+ case S_IFREG: /* ordinary name */
+ /* Must use ctime for systems that don't update mtime properly */
+ if (pmatch_full (tmp,pat,'/') && compare_cstring (tmp,"INBOX"))
+ dummy_listed (stream,'/',tmp,LATT_NOINFERIORS +
+ ((sbuf.st_size && (sbuf.st_atime < sbuf.st_ctime))?
+ LATT_MARKED : LATT_UNMARKED),contents);
+ break;
+ }
+ }
+ }
+ closedir (dp); /* all done, flush directory */
+ }
+}
+\f
+/* Scan file for contents
+ * Accepts: driver to use
+ * file name
+ * desired contents
+ * length of contents
+ * size of file
+ * Returns: NIL if contents not found, T if found
+ */
+
+long scan_contents (DRIVER *dtb,char *name,char *contents,
+ unsigned long csiz,unsigned long fsiz)
+{
+ scancontents_t sc = dtb ?
+ (scancontents_t) (*dtb->parameters) (GET_SCANCONTENTS,NIL) : NIL;
+ return (*(sc ? sc : dummy_scan_contents)) (name,contents,csiz,fsiz);
+}
+
+
+/* Scan file for contents
+ * Accepts: file name
+ * desired contents
+ * length of contents
+ * size of file
+ * Returns: NIL if contents not found, T if found
+ */
+
+#define BUFSIZE 4*MAILTMPLEN
+
+long dummy_scan_contents (char *name,char *contents,unsigned long csiz,
+ unsigned long fsiz)
+{
+ int fd;
+ unsigned long ssiz,bsiz;
+ char *buf;
+ /* forget it if can't select or open */
+ if ((fd = open (name,O_RDONLY,NIL)) >= 0) {
+ /* 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 (fsiz) { /* until end of file */
+ read (fd,buf+ssiz,bsiz = min (fsiz,BUFSIZE));
+ if (search ((unsigned char *) buf,bsiz+ssiz,
+ (unsigned char *) contents,csiz)) break;
+ memcpy (buf,buf+BUFSIZE,ssiz);
+ fsiz -= bsiz; /* note that we read that much */
+ }
+ fs_give ((void **) &buf); /* flush buffer */
+ close (fd); /* finished with file */
+ if (fsiz) return T; /* found */
+ }
+ return NIL; /* not found */
+}
+\f
+/* Mailbox found
+ * Accepts: MAIL stream
+ * hierarchy delimiter
+ * mailbox name
+ * attributes
+ * contents to search before calling mm_list()
+ * Returns: NIL if should abort hierarchy search, else T (currently always)
+ */
+
+long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
+ long attributes,char *contents)
+{
+ DRIVER *d;
+ DIR *dp;
+ struct direct *dr;
+ dirfmttest_t dt;
+ unsigned long csiz;
+ struct stat sbuf;
+ int nochild;
+ char *s,tmp[MAILTMPLEN];
+ if (!(attributes & LATT_NOINFERIORS) && mailboxdir (tmp,name,NIL) &&
+ (dp = opendir (tmp))) { /* if not \NoInferiors */
+ /* locate dirfmttest if any */
+ for (d = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
+ !dt && d; d = d->next)
+ if (!(d->flags & DR_DISABLE) && (d->flags & DR_DIRFMT) &&
+ (*d->valid) (name))
+ dt = mail_parameters ((*d->open) (NIL),GET_DIRFMTTEST,NIL);
+ /* scan directory for children */
+ for (nochild = T; nochild && (dr = readdir (dp)); )
+ if ((!(dt && (*dt) (dr->d_name))) &&
+ ((dr->d_name[0] != '.') ||
+ (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
+ (dr->d_name[1] && ((dr->d_name[1] != '.') || dr->d_name[2])))))
+ nochild = NIL;
+ attributes |= nochild ? LATT_HASNOCHILDREN : LATT_HASCHILDREN;
+ closedir (dp); /* all done, flush directory */
+ }
+ d = NIL; /* don't \NoSelect dir if it has a driver */
+ if ((attributes & LATT_NOSELECT) && (d = mail_valid (NIL,name,NIL)) &&
+ (d != &dummydriver)) attributes &= ~LATT_NOSELECT;
+ if (!contents || /* notify main program */
+ (!(attributes & LATT_NOSELECT) && (csiz = strlen (contents)) &&
+ (s = mailboxfile (tmp,name)) &&
+ (*s || (s = mail_parameters (NIL,GET_INBOXPATH,tmp))) &&
+ !stat (s,&sbuf) && (d || (csiz <= sbuf.st_size)) &&
+ SAFE_SCAN_CONTENTS (d,tmp,contents,csiz,sbuf.st_size)))
+ mm_list (stream,delimiter,name,attributes);
+ return T;
+}
+\f
+/* 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 *s,tmp[MAILTMPLEN];
+ long ret = NIL;
+ /* validate name */
+ if (!(compare_cstring (mailbox,"INBOX") && (s = dummy_file (tmp,mailbox)))) {
+ sprintf (tmp,"Can't create %.80s: invalid name",mailbox);
+ MM_LOG (tmp,ERROR);
+ }
+ /* create the name, done if made directory */
+ else if ((ret = dummy_create_path (stream,tmp,get_dir_protection(mailbox)))&&
+ (s = strrchr (s,'/')) && !s[1]) return T;
+ return ret ? set_mbx_protections (mailbox,tmp) : NIL;
+}
+\f
+/* 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,'/');
+ int wantdir = t && !t[1];
+ int mask = umask (0);
+ if (wantdir) *t = '\0'; /* flush trailing delimiter for directory */
+ if (s = strrchr (path,'/')) { /* found superior to this name? */
+ c = *++s; /* remember first character of inferior */
+ *s = '\0'; /* tie off to get just superior */
+ /* name doesn't exist, create it */
+ if ((stat (path,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
+ !dummy_create_path (stream,path,dirmode)) {
+ umask (mask); /* restore mask */
+ return NIL;
+ }
+ *s = c; /* restore full name */
+ }
+ if (wantdir) { /* want to create directory? */
+ ret = !mkdir (path,(int) dirmode);
+ *t = '/'; /* restore directory delimiter */
+ }
+ /* create file */
+ else if ((fd = open (path,O_WRONLY|O_CREAT|O_EXCL,
+ (long) mail_parameters(NIL,GET_MBXPROTECTION,NIL))) >=0)
+ ret = !close (fd);
+ if (!ret) { /* error? */
+ sprintf (tmp,"Can't create mailbox node %.80s: %.80s",path,strerror (errno));
+ MM_LOG (tmp,ERROR);
+ }
+ umask (mask); /* restore mask */
+ return ret; /* return status */
+}
+\f
+/* 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 / (workaround BSD kernel bug) */
+ 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 */
+}
+\f
+/* 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];
+ /* 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 */
+ else { /* found superior to destination name? */
+ c = *++s; /* remember first character of inferior */
+ *s = '\0'; /* tie off to get just superior */
+ /* name doesn't exist, create it */
+ if ((stat (mbx,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
+ !dummy_create (stream,mbx)) return NIL;
+ *s = c; /* restore full name */
+ }
+ }
+ /* 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 T; /* return success */
+}
+\f
+/* 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_mode & S_IFMT) != S_IFREG)
+ sprintf (err,"Can't open %.80s: not a selectable mailbox",
+ stream->mailbox);
+ else if (sbuf.st_size) /* bogus format if non-empty */
+ sprintf (err,"Can't open %.80s (file %.80s): 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 = 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 */
+}
+\f
+/* Dummy ping mailbox
+ * Accepts: MAIL stream
+ * Returns: T if stream alive, else NIL
+ */
+
+long dummy_ping (MAILSTREAM *stream)
+{
+ MAILSTREAM *test;
+ if (time (0) >= /* time to do another test? */
+ ((time_t) (stream->gensym +
+ (long) mail_parameters (NIL,GET_SNARFINTERVAL,NIL)))) {
+ /* 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 = 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;
+}
+\f
+/* 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);
+ /* append to INBOX? */
+ if (!compare_cstring (mailbox,"INBOX")) {
+ /* yes, if no empty proto try creating */
+ if (!ts && !(*(ts = default_proto (NIL))->dtb->create) (ts,"INBOX"))
+ ts = NIL;
+ }
+ else if (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",NIL);
+ sprintf (tmp,"%.80s: %.80s",strerror (e),mailbox);
+ MM_LOG (tmp,ERROR); /* pass up error */
+ return NIL; /* always fails */
+ }
+ else 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;
+}
+\f
+/* 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;
+ if (ref) { /* preliminary reference check */
+ if (*ref == '{') return NIL;/* remote reference not allowed */
+ else if (!*ref) ref = NIL; /* treat empty reference as no reference */
+ }
+ switch (*pat) {
+ case '#': /* namespace name */
+ if (mailboxfile (tmp,pat)) strcpy (tmp,pat);
+ else return NIL; /* unknown namespace */
+ break;
+ case '{': /* remote names not allowed */
+ return NIL;
+ case '/': /* rooted name */
+ case '~': /* home directory name */
+ if (!ref || (*ref != '#')) {/* non-namespace reference? */
+ strcpy (tmp,pat); /* yes, ignore */
+ break;
+ }
+ /* fall through */
+ default: /* apply reference for all other names */
+ if (!ref) strcpy (tmp,pat); /* just copy if no namespace */
+ else if ((*ref != '#') || mailboxfile (tmp,ref)) {
+ /* wants root of name? */
+ if (*pat == '/') strcpy (strchr (strcpy (tmp,ref),'/'),pat);
+ /* otherwise just append */
+ else sprintf (tmp,"%s%s",ref,pat);
+ }
+ else return NIL; /* unknown namespace */
+ }
+ /* 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;
+}
--- /dev/null
+/* ========================================================================
+ * 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
+ *
+ * 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: 9 May 1991
+ * Last Edited: 1 June 2007
+ */
+
+
+#include <stdio.h>
+#include <ctype.h>
+#include <errno.h>
+extern int errno; /* just in case */
+#include "mail.h"
+#include "osdep.h"
+#include <pwd.h>
+#include <sys/stat.h>
+#include "dummy.h"
+#include "misc.h"
+\f
+/* 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);
+\f
+/* 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};
+\f
+/* Dummy validate mailbox
+ * Accepts: mailbox name
+ * Returns: our driver if name is valid, NIL otherwise
+ */
+
+DRIVER *dummy_valid (char *name)
+{
+ char *s,tmp[MAILTMPLEN];
+ struct stat sbuf;
+ /* must be valid local mailbox */
+ if (name && *name && (*name != '{') && (s = mailboxfile (tmp,name))) {
+ /* indeterminate clearbox INBOX */
+ if (!*s) return &dummydriver;
+ else if (!stat (s,&sbuf)) switch (sbuf.st_mode & S_IFMT) {
+ case S_IFREG:
+ case S_IFDIR:
+ return &dummydriver;
+ }
+ /* blackbox INBOX does not exist yet */
+ else if (!compare_cstring (name,"INBOX")) 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)
+{
+ void *ret = NIL;
+ switch ((int) function) {
+ case GET_INBOXPATH:
+ if (value) ret = dummy_file ((char *) value,"INBOX");
+ break;
+ }
+ return ret;
+}
+\f
+/* Dummy scan mailboxes
+ * Accepts: mail stream
+ * reference
+ * pattern to search
+ * string to scan
+ */
+
+void dummy_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
+{
+ DRIVER *drivers;
+ char *s,test[MAILTMPLEN],file[MAILTMPLEN];
+ long i;
+ 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,i = s - test);
+ file[i] = '\0'; /* tie off */
+ }
+ else strcpy (file,test); /* use just that name then */
+ if (s = strrchr (file,'/')){/* find directory name */
+ *++s = '\0'; /* found, tie off at that point */
+ s = file;
+ }
+ /* silly case */
+ else if ((file[0] == '~') || (file[0] == '#')) s = file;
+ /* do the work */
+ dummy_list_work (stream,s,test,contents,0);
+ /* always an INBOX */
+ if (pmatch ("INBOX",ucase (test))) {
+ /* done if have a dirfmt INBOX */
+ for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL);
+ drivers && !(!(drivers->flags & DR_DISABLE) &&
+ (drivers->flags & DR_DIRFMT) &&
+ (*drivers->valid) ("INBOX")); drivers = drivers->next);
+ /* list INBOX appropriately */
+ dummy_listed (stream,drivers ? '/' : NIL,"INBOX",
+ drivers ? NIL : 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);
+}
+\f
+/* 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],tmp[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 (!compare_cstring (s,"INBOX") &&
+ pmatch ("INBOX",ucase (strcpy (tmp,test))))
+ mm_lsub (stream,NIL,s,LATT_NOINFERIORS);
+ else if (pmatch_full (s,test,'/')) 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))
+ switch (sbuf.st_mode & S_IFMT) {
+ case S_IFDIR: /* allow but snarl */
+ sprintf (tmp,"CLIENT BUG DETECTED: subscribe of non-mailbox directory %.80s",
+ mailbox);
+ MM_NOTIFY (stream,tmp,WARN);
+ case S_IFREG:
+ return sm_subscribe (mailbox);
+ }
+ sprintf (tmp,"Can't subscribe %.80s: not a mailbox",mailbox);
+ MM_LOG (tmp,ERROR);
+ return NIL;
+}
+\f
+/* 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)
+{
+ DRIVER *drivers;
+ dirfmttest_t dt;
+ DIR *dp;
+ struct direct *d;
+ struct stat sbuf;
+ char tmp[MAILTMPLEN],path[MAILTMPLEN];
+ size_t len = 0;
+ /* punt if bogus name */
+ if (!mailboxdir (tmp,dir,NIL)) return;
+ if (dp = opendir (tmp)) { /* do nothing if can't open directory */
+ /* see if a non-namespace directory format */
+ for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
+ dir && !dt && drivers; drivers = drivers->next)
+ if (!(drivers->flags & DR_DISABLE) && (drivers->flags & DR_DIRFMT) &&
+ (*drivers->valid) (dir))
+ dt = mail_parameters ((*drivers->open) (NIL),GET_DIRFMTTEST,NIL);
+ /* list it if at top-level */
+ if (!level && dir && pmatch_full (dir,pat,'/') && !pmatch (dir,"INBOX"))
+ dummy_listed (stream,'/',dir,dt ? NIL : LATT_NOSELECT,contents);
+\f
+ /* scan directory, ignore . and .. */
+ if (!dir || dir[(len = strlen (dir)) - 1] == '/') while (d = readdir (dp))
+ if ((!(dt && (*dt) (d->d_name))) &&
+ ((d->d_name[0] != '.') ||
+ (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
+ (d->d_name[1] && (((d->d_name[1] != '.') || d->d_name[2]))))) &&
+ ((len + strlen (d->d_name)) <= NETMAXMBX)) {
+ /* see if name is useful */
+ if (dir) sprintf (tmp,"%s%s",dir,d->d_name);
+ else strcpy (tmp,d->d_name);
+ /* make sure useful and can get info */
+ if ((pmatch_full (strcpy (path,tmp),pat,'/') ||
+ pmatch_full (strcat (path,"/"),pat,'/') ||
+ dmatch (path,pat,'/')) &&
+ mailboxdir (path,dir,"x") && (len = strlen (path)) &&
+ strcpy (path+len-1,d->d_name) && !stat (path,&sbuf)) {
+ /* only interested in file type */
+ switch (sbuf.st_mode & S_IFMT) {
+ case S_IFDIR: /* directory? */
+ /* form with trailing / */
+ sprintf (path,"%s/",tmp);
+ /* skip listing if INBOX */
+ if (!pmatch (tmp,"INBOX")) {
+ if (pmatch_full (tmp,pat,'/')) {
+ if (!dummy_listed (stream,'/',tmp,LATT_NOSELECT,contents))
+ break;
+ }
+ /* try again with trailing / */
+ else if (pmatch_full (path,pat,'/') &&
+ !dummy_listed (stream,'/',path,LATT_NOSELECT,contents))
+ break;
+ }
+ if (dmatch (path,pat,'/') &&
+ (level < (long) mail_parameters (NIL,GET_LISTMAXLEVEL,NIL)))
+ dummy_list_work (stream,path,pat,contents,level+1);
+ break;
+ case S_IFREG: /* ordinary name */
+ /* Must use ctime for systems that don't update mtime properly */
+ if (pmatch_full (tmp,pat,'/') && compare_cstring (tmp,"INBOX"))
+ dummy_listed (stream,'/',tmp,LATT_NOINFERIORS +
+ ((sbuf.st_size && (sbuf.st_atime < sbuf.st_ctime))?
+ LATT_MARKED : LATT_UNMARKED),contents);
+ break;
+ }
+ }
+ }
+ closedir (dp); /* all done, flush directory */
+ }
+}
+\f
+/* Scan file for contents
+ * Accepts: driver to use
+ * file name
+ * desired contents
+ * length of contents
+ * size of file
+ * Returns: NIL if contents not found, T if found
+ */
+
+long scan_contents (DRIVER *dtb,char *name,char *contents,
+ unsigned long csiz,unsigned long fsiz)
+{
+ scancontents_t sc = dtb ?
+ (scancontents_t) (*dtb->parameters) (GET_SCANCONTENTS,NIL) : NIL;
+ return (*(sc ? sc : dummy_scan_contents)) (name,contents,csiz,fsiz);
+}
+
+
+/* Scan file for contents
+ * Accepts: file name
+ * desired contents
+ * length of contents
+ * size of file
+ * Returns: NIL if contents not found, T if found
+ */
+
+#define BUFSIZE 4*MAILTMPLEN
+
+long dummy_scan_contents (char *name,char *contents,unsigned long csiz,
+ unsigned long fsiz)
+{
+ int fd;
+ unsigned long ssiz,bsiz;
+ char *buf;
+ /* forget it if can't select or open */
+ if ((fd = open (name,O_RDONLY,NIL)) >= 0) {
+ /* 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 (fsiz) { /* until end of file */
+ read (fd,buf+ssiz,bsiz = min (fsiz,BUFSIZE));
+ if (search ((unsigned char *) buf,bsiz+ssiz,
+ (unsigned char *) contents,csiz)) break;
+ memcpy (buf,buf+BUFSIZE,ssiz);
+ fsiz -= bsiz; /* note that we read that much */
+ }
+ fs_give ((void **) &buf); /* flush buffer */
+ close (fd); /* finished with file */
+ if (fsiz) return T; /* found */
+ }
+ return NIL; /* not found */
+}
+\f
+/* Mailbox found
+ * Accepts: MAIL stream
+ * hierarchy delimiter
+ * mailbox name
+ * attributes
+ * contents to search before calling mm_list()
+ * Returns: NIL if should abort hierarchy search, else T (currently always)
+ */
+
+long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
+ long attributes,char *contents)
+{
+ DRIVER *d;
+ DIR *dp;
+ struct direct *dr;
+ dirfmttest_t dt;
+ unsigned long csiz;
+ struct stat sbuf;
+ int nochild;
+ char *s,tmp[MAILTMPLEN];
+ if (!(attributes & LATT_NOINFERIORS) && mailboxdir (tmp,name,NIL) &&
+ (dp = opendir (tmp))) { /* if not \NoInferiors */
+ /* locate dirfmttest if any */
+ for (d = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
+ !dt && d; d = d->next)
+ if (!(d->flags & DR_DISABLE) && (d->flags & DR_DIRFMT) &&
+ (*d->valid) (name))
+ dt = mail_parameters ((*d->open) (NIL),GET_DIRFMTTEST,NIL);
+ /* scan directory for children */
+ for (nochild = T; nochild && (dr = readdir (dp)); )
+ if ((!(dt && (*dt) (dr->d_name))) &&
+ ((dr->d_name[0] != '.') ||
+ (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
+ (dr->d_name[1] && ((dr->d_name[1] != '.') || dr->d_name[2])))))
+ nochild = NIL;
+ attributes |= nochild ? LATT_HASNOCHILDREN : LATT_HASCHILDREN;
+ closedir (dp); /* all done, flush directory */
+ }
+ d = NIL; /* don't \NoSelect dir if it has a driver */
+ if ((attributes & LATT_NOSELECT) && (d = mail_valid (NIL,name,NIL)) &&
+ (d != &dummydriver)) attributes &= ~LATT_NOSELECT;
+ if (!contents || /* notify main program */
+ (!(attributes & LATT_NOSELECT) && (csiz = strlen (contents)) &&
+ (s = mailboxfile (tmp,name)) &&
+ (*s || (s = mail_parameters (NIL,GET_INBOXPATH,tmp))) &&
+ !stat (s,&sbuf) && (d || (csiz <= sbuf.st_size)) &&
+ SAFE_SCAN_CONTENTS (d,tmp,contents,csiz,sbuf.st_size)))
+ mm_list (stream,delimiter,name,attributes);
+ return T;
+}
+\f
+/* 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 *s,tmp[MAILTMPLEN];
+ long ret = NIL;
+ /* validate name */
+ if (!(compare_cstring (mailbox,"INBOX") && (s = dummy_file (tmp,mailbox)))) {
+ sprintf (tmp,"Can't create %.80s: invalid name",mailbox);
+ MM_LOG (tmp,ERROR);
+ }
+ /* create the name, done if made directory */
+ else if ((ret = dummy_create_path (stream,tmp,get_dir_protection(mailbox)))&&
+ (s = strrchr (s,'/')) && !s[1]) return T;
+ return ret ? set_mbx_protections (mailbox,tmp) : NIL;
+}
+\f
+/* 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,'/');
+ int wantdir = t && !t[1];
+ int mask = umask (0);
+ if (wantdir) *t = '\0'; /* flush trailing delimiter for directory */
+ if (s = strrchr (path,'/')) { /* found superior to this name? */
+ c = *++s; /* remember first character of inferior */
+ *s = '\0'; /* tie off to get just superior */
+ /* name doesn't exist, create it */
+ if ((stat (path,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
+ !dummy_create_path (stream,path,dirmode)) {
+ umask (mask); /* restore mask */
+ return NIL;
+ }
+ *s = c; /* restore full name */
+ }
+ if (wantdir) { /* want to create directory? */
+ ret = !mkdir (path,(int) dirmode);
+ *t = '/'; /* restore directory delimiter */
+ }
+ /* create file */
+ else if ((fd = open (path,O_WRONLY|O_CREAT|O_EXCL,
+ (long) mail_parameters(NIL,GET_MBXPROTECTION,NIL))) >=0)
+ ret = !close (fd);
+ if (!ret) { /* error? */
+ sprintf (tmp,"Can't create mailbox node %.80s: %.80s",path,strerror (errno));
+ MM_LOG (tmp,ERROR);
+ }
+ umask (mask); /* restore mask */
+ return ret; /* return status */
+}
+\f
+/* 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 / (workaround BSD kernel bug) */
+ 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 */
+}
+\f
+/* 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];
+ /* 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 */
+ else { /* found superior to destination name? */
+ c = *++s; /* remember first character of inferior */
+ *s = '\0'; /* tie off to get just superior */
+ /* name doesn't exist, create it */
+ if ((stat (mbx,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
+ !dummy_create (stream,mbx)) return NIL;
+ *s = c; /* restore full name */
+ }
+ }
+ /* 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 T; /* return success */
+}
+\f
+/* 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_mode & S_IFMT) != S_IFREG)
+ sprintf (err,"Can't open %.80s: not a selectable mailbox",
+ stream->mailbox);
+ else if (sbuf.st_size) /* bogus format if non-empty */
+ sprintf (err,"Can't open %.80s (file %.80s): 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 = 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 */
+}
+\f
+/* Dummy ping mailbox
+ * Accepts: MAIL stream
+ * Returns: T if stream alive, else NIL
+ */
+
+long dummy_ping (MAILSTREAM *stream)
+{
+ MAILSTREAM *test;
+ if (time (0) >= /* time to do another test? */
+ ((time_t) (stream->gensym +
+ (long) mail_parameters (NIL,GET_SNARFINTERVAL,NIL)))) {
+ /* 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 = 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;
+}
+\f
+/* 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);
+ /* append to INBOX? */
+ if (!compare_cstring (mailbox,"INBOX")) {
+ /* yes, if no empty proto try creating */
+ if (!ts && !(*(ts = default_proto (NIL))->dtb->create) (ts,"INBOX"))
+ ts = NIL;
+ }
+ else if (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",NIL);
+ sprintf (tmp,"%.80s: %.80s",strerror (e),mailbox);
+ MM_LOG (tmp,ERROR); /* pass up error */
+ return NIL; /* always fails */
+ }
+ else 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;
+}
+\f
+/* 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;
+ if (ref) { /* preliminary reference check */
+ if (*ref == '{') return NIL;/* remote reference not allowed */
+ else if (!*ref) ref = NIL; /* treat empty reference as no reference */
+ }
+ switch (*pat) {
+ case '#': /* namespace name */
+ if (mailboxfile (tmp,pat)) strcpy (tmp,pat);
+ else return NIL; /* unknown namespace */
+ break;
+ case '{': /* remote names not allowed */
+ return NIL;
+ case '/': /* rooted name */
+ case '~': /* home directory name */
+ if (!ref || (*ref != '#')) {/* non-namespace reference? */
+ strcpy (tmp,pat); /* yes, ignore */
+ break;
+ }
+ /* fall through */
+ default: /* apply reference for all other names */
+ if (!ref) strcpy (tmp,pat); /* just copy if no namespace */
+ else if ((*ref != '#') || mailboxfile (tmp,ref)) {
+ /* wants root of name? */
+ if (*pat == '/') strcpy (strchr (strcpy (tmp,ref),'/'),pat);
+ /* otherwise just append */
+ else sprintf (tmp,"%s%s",ref,pat);
+ }
+ else return NIL; /* unknown namespace */
+ }
+ /* 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;
+}
projects / uw-imap / commitdiff