diff options
Diffstat (limited to 'imap/src/osdep/dos/env_dos.c')
| -rw-r--r-- | imap/src/osdep/dos/env_dos.c | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/imap/src/osdep/dos/env_dos.c b/imap/src/osdep/dos/env_dos.c new file mode 100644 index 00000000..152dd322 --- /dev/null +++ b/imap/src/osdep/dos/env_dos.c @@ -0,0 +1,300 @@ +/* ======================================================================== + * Copyright 1988-2006 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: DOS environment 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: 1 August 1988 + * Last Edited: 30 August 2006 + */ + + +static char *myLocalHost = NIL; /* local host name */ +static char *myClientAddr = NIL;/* client host address */ +static char *myClientHost = NIL;/* client host name */ +static char *myServerAddr = NIL;/* server host address */ +static char *myServerHost = NIL;/* server host name */ +static char *myHomeDir = NIL; /* home directory name */ +static char *myNewsrc = NIL; /* newsrc file name */ +static long list_max_level = 5; /* maximum level of list recursion */ +static short no822tztext = NIL; /* disable RFC [2]822 timezone text */ + /* home namespace */ +static NAMESPACE nshome = {"",'\\',NIL,NIL}; + /* namespace list */ +static NAMESPACE *nslist[3] = {&nshome,NIL,NIL}; + +#include "write.c" /* include safe writing routines */ +#include "pmatch.c" /* include wildcard pattern matcher */ + + +/* Dummy definitions to prevent errors */ + +#define server_login(user,pass,authuser,argc,argv) NIL +#define authserver_login(user,authuser,argc,argv) NIL +#define myusername() "" +#define MD5ENABLE "\\.nosuch.." + + +/* Get all authenticators */ + +#include "auths.c" + +/* Environment manipulate parameters + * Accepts: function code + * function-dependent value + * Returns: function-dependent return value + */ + +void *env_parameters (long function,void *value) +{ + void *ret = NIL; + switch ((int) function) { + case GET_NAMESPACE: + ret = (void *) nslist; + break; + case SET_HOMEDIR: + myHomeDir = cpystr ((char *) value); + case GET_HOMEDIR: + ret = (void *) myHomeDir; + break; + case SET_LOCALHOST: + myLocalHost = cpystr ((char *) value); + case GET_LOCALHOST: + ret = (void *) myLocalHost; + break; + case SET_NEWSRC: + if (myNewsrc) fs_give ((void **) &myNewsrc); + myNewsrc = cpystr ((char *) value); + case GET_NEWSRC: + if (!myNewsrc) { /* set news file name if not defined */ + char tmp[MAILTMPLEN]; + sprintf (tmp,"%s\\NEWSRC",myhomedir ()); + myNewsrc = cpystr (tmp); + } + ret = (void *) myNewsrc; + break; + case SET_LISTMAXLEVEL: + list_max_level = (long) value; + case GET_LISTMAXLEVEL: + ret = (void *) list_max_level; + break; + case SET_DISABLE822TZTEXT: + no822tztext = value ? T : NIL; + case GET_DISABLE822TZTEXT: + ret = (void *) (no822tztext ? VOIDT : NIL); + break; + } + return ret; +} + +/* Write current time + * Accepts: destination string + * optional format of day-of-week prefix + * format of date and time + * flag whether to append symbolic timezone + */ + +static void do_date (char *date,char *prefix,char *fmt,int suffix) +{ + time_t tn = time (0); + struct tm *t = gmtime (&tn); + int zone = t->tm_hour * 60 + t->tm_min; + int julian = t->tm_yday; + t = localtime (&tn); /* get local time now */ + /* minus UTC minutes since midnight */ + zone = t->tm_hour * 60 + t->tm_min - zone; + /* julian can be one of: + * 36x local time is December 31, UTC is January 1, offset -24 hours + * 1 local time is 1 day ahead of UTC, offset +24 hours + * 0 local time is same day as UTC, no offset + * -1 local time is 1 day behind UTC, offset -24 hours + * -36x local time is January 1, UTC is December 31, offset +24 hours + */ + if (julian = t->tm_yday -julian) + zone += ((julian < 0) == (abs (julian) == 1)) ? -24*60 : 24*60; + if (prefix) { /* want day of week? */ + sprintf (date,prefix,days[t->tm_wday]); + date += strlen (date); /* make next sprintf append */ + } + /* output the date */ + sprintf (date,fmt,t->tm_mday,months[t->tm_mon],t->tm_year+1900, + t->tm_hour,t->tm_min,t->tm_sec,zone/60,abs (zone) % 60); + if (suffix) { /* append timezone suffix if desired */ + tzset (); /* get timezone from TZ environment stuff */ + sprintf (date + strlen (date)," (%.50s)", + tzname[daylight ? (((struct tm *) t)->tm_isdst > 0) : 0]); + } +} + + +/* Write current time in RFC 822 format + * Accepts: destination string + */ + +void rfc822_date (char *date) +{ + do_date (date,"%s, ","%d %s %d %02d:%02d:%02d %+03d%02d", + no822tztext ? NIL : T); +} + + +/* Write current time in internal format + * Accepts: destination string + */ + +void internal_date (char *date) +{ + do_date (date,NIL,"%02d-%s-%d %02d:%02d:%02d %+03d%02d",NIL); +} + +/* Return my home directory name + * Returns: my home directory name + */ + +char *myhomedir () +{ + int i; + char *s; + if (!myHomeDir) { /* get home directory name if not yet known */ + i = strlen (myHomeDir = cpystr ((s = getenv ("HOME")) ? s : "")); + if (i && ((myHomeDir[i-1] == '\\') || (myHomeDir[i-1]=='/'))) + myHomeDir[i-1] = '\0'; /* tie off trailing directory delimiter */ + } + return myHomeDir; +} + + +/* Return mailbox file name + * Accepts: destination buffer + * mailbox name + * Returns: file name + */ + +char *mailboxfile (char *dst,char *name) +{ + char *s; + char *ext = (char *) mail_parameters (NIL,GET_EXTENSION,NIL); + /* forbid extraneous extensions */ + if ((s = strchr ((s = strrchr (name,'\\')) ? s : name,'.')) && + ((ext = (char *) mail_parameters (NIL,GET_EXTENSION,NIL)) || + strchr (s+1,'.'))) return NIL; + /* absolute path name? */ + if ((*name == '\\') || (name[1] == ':')) strcpy (dst,name); + else sprintf (dst,"%s\\%s",myhomedir (),name); + if (ext) sprintf (dst + strlen (dst),".%s",ext); + return ucase (dst); +} + + +/* Determine default prototype stream to user + * Accepts: type (NIL for create, T for append) + * Returns: default prototype stream + */ + +MAILSTREAM *default_proto (long type) +{ + extern MAILSTREAM DEFAULTPROTO; + return &DEFAULTPROTO; /* return default driver's prototype */ +} + +/* Global data */ + +static unsigned rndm = 0; /* initial `random' number */ + + +/* Return random number + */ + +long random () +{ + if (!rndm) srand (rndm = (unsigned) time (0L)); + return (long) rand (); +} + +/* Default mailgets routine on DOS + * Accepts: readin function pointer + * stream to use + * number of bytes + * identifier data + * Returns: string read in, truncated if necessary + * + * This is a sample mailgets routine. It simply truncates any data larger + * than 63K. On most systems, you generally don't use a mailgets + * routine at all, but on DOS it's required to prevent the application from + * crashing. + */ + +static char *dos_gets_buf = NIL; + +char *dos_default_gets (readfn_t f,void *stream,unsigned long size, + GETS_DATA *md) +{ + readprogress_t *rp = mail_parameters (NIL,GET_READPROGRESS,NIL); + char *ret,tmp[MAILTMPLEN+1]; + unsigned long i,j,dsc,rdi = 0; + unsigned long dos_max = 63 * 1024; + if (!dos_gets_buf) /* one-time initialization */ + dos_gets_buf = (char *) fs_get ((size_t) dos_max + 1); + ret = (md->flags & MG_COPY) ? + ((char *) fs_get ((size_t) size + 1)) : dos_gets_buf; + if (size > dos_max) { + sprintf (tmp,"Mailbox %s, %s %lu[%.80s], %lu octets truncated to %ld", + md->stream->mailbox,(md->flags & MG_UID) ? "UID" : "#", + md->msgno,md->what,size,(long) dos_max); + mm_log (tmp,WARN); /* warn user */ + dsc = size - dos_max; /* number of bytes to discard */ + size = dos_max; /* maximum length string we can read */ + } + else dsc = 0; /* nothing to discard */ + dos_gets_buf[size] = '\0'; /* tie off string */ + if (rp) for (i = size; j = min ((long) MAILTMPLEN,(long) i); i -= j) { + (*f) (stream,j,ret + rdi); + (*rp) (md,rdi += j); + } + else (*f) (stream,size,dos_gets_buf); + /* toss out everything after that */ + for (i = dsc; j = min ((long) MAILTMPLEN,(long) i); i -= j) { + (*f) (stream,j,tmp); + if (rp) (*rp) (md,rdi += j); + } + return ret; +} + +/* Emulator for BSD syslog() routine + * Accepts: priority + * message + * parameters + */ + +void syslog (int priority,const char *message,...) +{ +} + + +/* Emulator for BSD openlog() routine + * Accepts: identity + * options + * facility + */ + +void openlog (const char *ident,int logopt,int facility) +{ +} |