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author | Eduardo Chappa <echappa@gmx.com> | 2013-02-03 00:59:38 -0700 |
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committer | Eduardo Chappa <echappa@gmx.com> | 2013-02-03 00:59:38 -0700 |
commit | 094ca96844842928810f14844413109fc6cdd890 (patch) | |
tree | e60efbb980f38ba9308ccb4fb2b77b87bbc115f3 /imap/src/osdep/amiga/phile.c | |
download | alpine-094ca96844842928810f14844413109fc6cdd890.tar.xz |
Initial Alpine Version
Diffstat (limited to 'imap/src/osdep/amiga/phile.c')
-rw-r--r-- | imap/src/osdep/amiga/phile.c | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/imap/src/osdep/amiga/phile.c b/imap/src/osdep/amiga/phile.c new file mode 100644 index 00000000..ce72d0a9 --- /dev/null +++ b/imap/src/osdep/amiga/phile.c @@ -0,0 +1,553 @@ +/* ======================================================================== + * 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: File 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: 25 August 1993 + * Last Edited: 9 May 2006 + */ + + +#include <stdio.h> +#include <ctype.h> +#include <errno.h> +extern int errno; /* just in case */ +#include <signal.h> +#include "mail.h" +#include "osdep.h" +#include <pwd.h> +#include <sys/stat.h> +#include <sys/time.h> +#include "rfc822.h" +#include "misc.h" +#include "dummy.h" + +/* Types returned from phile_type() */ + +#define PTYPEBINARY 0 /* binary data */ +#define PTYPETEXT 1 /* textual data */ +#define PTYPECRTEXT 2 /* textual data with CR */ +#define PTYPE8 4 /* textual 8bit data */ +#define PTYPEISO2022JP 8 /* textual Japanese */ +#define PTYPEISO2022KR 16 /* textual Korean */ +#define PTYPEISO2022CN 32 /* textual Chinese */ + + +/* PHILE I/O stream local data */ + +typedef struct phile_local { + ENVELOPE *env; /* file envelope */ + BODY *body; /* file body */ + char tmp[MAILTMPLEN]; /* temporary buffer */ +} PHILELOCAL; + + +/* Convenient access to local data */ + +#define LOCAL ((PHILELOCAL *) stream->local) + + +/* Function prototypes */ + +DRIVER *phile_valid (char *name); +int phile_isvalid (char *name,char *tmp); +void *phile_parameters (long function,void *value); +void phile_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents); +void phile_list (MAILSTREAM *stream,char *ref,char *pat); +void phile_lsub (MAILSTREAM *stream,char *ref,char *pat); +long phile_create (MAILSTREAM *stream,char *mailbox); +long phile_delete (MAILSTREAM *stream,char *mailbox); +long phile_rename (MAILSTREAM *stream,char *old,char *newname); +long phile_status (MAILSTREAM *stream,char *mbx,long flags); +MAILSTREAM *phile_open (MAILSTREAM *stream); +int phile_type (unsigned char *s,unsigned long i,unsigned long *j); +void phile_close (MAILSTREAM *stream,long options); +ENVELOPE *phile_structure (MAILSTREAM *stream,unsigned long msgno,BODY **body, + long flags); +char *phile_header (MAILSTREAM *stream,unsigned long msgno, + unsigned long *length,long flags); +long phile_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags); +long phile_ping (MAILSTREAM *stream); +void phile_check (MAILSTREAM *stream); +long phile_expunge (MAILSTREAM *stream,char *sequence,long options); +long phile_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options); +long phile_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data); + +/* File routines */ + + +/* Driver dispatch used by MAIL */ + +DRIVER philedriver = { + "phile", /* driver name */ + /* driver flags */ + DR_LOCAL|DR_READONLY|DR_NOSTICKY, + (DRIVER *) NIL, /* next driver */ + phile_valid, /* mailbox is valid for us */ + phile_parameters, /* manipulate parameters */ + phile_scan, /* scan mailboxes */ + phile_list, /* list mailboxes */ + phile_lsub, /* list subscribed mailboxes */ + NIL, /* subscribe to mailbox */ + NIL, /* unsubscribe from mailbox */ + dummy_create, /* create mailbox */ + dummy_delete, /* delete mailbox */ + dummy_rename, /* rename mailbox */ + phile_status, /* status of mailbox */ + phile_open, /* open mailbox */ + phile_close, /* close mailbox */ + NIL, /* fetch message "fast" attributes */ + NIL, /* fetch message flags */ + NIL, /* fetch overview */ + phile_structure, /* fetch message envelopes */ + phile_header, /* fetch message header only */ + phile_text, /* fetch message body only */ + NIL, /* fetch partial message text */ + NIL, /* unique identifier */ + NIL, /* message number */ + NIL, /* modify flags */ + NIL, /* per-message modify flags */ + NIL, /* search for message based on criteria */ + NIL, /* sort messages */ + NIL, /* thread messages */ + phile_ping, /* ping mailbox to see if still alive */ + phile_check, /* check for new messages */ + phile_expunge, /* expunge deleted messages */ + phile_copy, /* copy messages to another mailbox */ + phile_append, /* append string message to mailbox */ + NIL /* garbage collect stream */ +}; + + /* prototype stream */ +MAILSTREAM phileproto = {&philedriver}; + +/* File validate mailbox + * Accepts: mailbox name + * Returns: our driver if name is valid, NIL otherwise + */ + +DRIVER *phile_valid (char *name) +{ + char tmp[MAILTMPLEN]; + return phile_isvalid (name,tmp) ? &philedriver : NIL; +} + + +/* File test for valid mailbox + * Accepts: mailbox name + * Returns: T if valid, NIL otherwise + */ + +int phile_isvalid (char *name,char *tmp) +{ + struct stat sbuf; + char *s; + /* INBOX never accepted, any other name is */ + return ((s = mailboxfile (tmp,name)) && *s && !stat (s,&sbuf) && + !(sbuf.st_mode & S_IFDIR) && + /* only allow empty files if no empty proto + or if #ftp */ + (sbuf.st_size || !default_proto (T) || + ((*name == '#') && ((name[1] == 'f') || (name[1] == 'F')) && + ((name[2] == 't') || (name[2] == 'T')) && + ((name[3] == 'p') || (name[3] == 'P')) && (name[4] == '/')))); +} + +/* File manipulate driver parameters + * Accepts: function code + * function-dependent value + * Returns: function-dependent return value + */ + +void *phile_parameters (long function,void *value) +{ + return NIL; +} + +/* File mail scan mailboxes + * Accepts: mail stream + * reference + * pattern to search + * string to scan + */ + +void phile_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents) +{ + if (stream) dummy_scan (NIL,ref,pat,contents); +} + + +/* File list mailboxes + * Accepts: mail stream + * reference + * pattern to search + */ + +void phile_list (MAILSTREAM *stream,char *ref,char *pat) +{ + if (stream) dummy_list (NIL,ref,pat); +} + + +/* File list subscribed mailboxes + * Accepts: mail stream + * reference + * pattern to search + */ + +void phile_lsub (MAILSTREAM *stream,char *ref,char *pat) +{ + if (stream) dummy_lsub (NIL,ref,pat); +} + + +/* File status + * Accepts: mail stream + * mailbox name + * status flags + * Returns: T on success, NIL on failure + */ + +long phile_status (MAILSTREAM *stream,char *mbx,long flags) +{ + char *s,tmp[MAILTMPLEN]; + MAILSTATUS status; + struct stat sbuf; + long ret = NIL; + if ((s = mailboxfile (tmp,mbx)) && *s && !stat (s,&sbuf)) { + status.flags = flags; /* return status values */ + status.unseen = (stream && mail_elt (stream,1)->seen) ? 0 : 1; + status.messages = status.recent = status.uidnext = 1; + status.uidvalidity = sbuf.st_mtime; + /* pass status to main program */ + mm_status (stream,mbx,&status); + ret = LONGT; /* success */ + } + return ret; +} + +/* File open + * Accepts: Stream to open + * Returns: Stream on success, NIL on failure + */ + +MAILSTREAM *phile_open (MAILSTREAM *stream) +{ + int i,k,fd; + unsigned long j,m; + char *s,tmp[MAILTMPLEN]; + struct passwd *pw; + struct stat sbuf; + struct tm *t; + MESSAGECACHE *elt; + SIZEDTEXT *buf; + /* return prototype for OP_PROTOTYPE call */ + if (!stream) return &phileproto; + if (stream->local) fatal ("phile recycle stream"); + /* open associated file */ + if (!mailboxfile (tmp,stream->mailbox) || !tmp[0] || stat (tmp,&sbuf) || + (fd = open (tmp,O_RDONLY,NIL)) < 0) { + sprintf (tmp,"Unable to open file %s",stream->mailbox); + mm_log (tmp,ERROR); + return NIL; + } + fs_give ((void **) &stream->mailbox); + stream->mailbox = cpystr (tmp); + stream->local = fs_get (sizeof (PHILELOCAL)); + mail_exists (stream,1); /* make sure upper level knows */ + mail_recent (stream,1); + elt = mail_elt (stream,1); /* instantiate cache element */ + elt->valid = elt->recent = T; /* mark valid flags */ + stream->sequence++; /* bump sequence number */ + stream->rdonly = T; /* make sure upper level knows readonly */ + /* instantiate a new envelope and body */ + LOCAL->env = mail_newenvelope (); + LOCAL->body = mail_newbody (); + + t = gmtime (&sbuf.st_mtime); /* get UTC time and Julian day */ + i = t->tm_hour * 60 + t->tm_min; + k = t->tm_yday; + t = localtime(&sbuf.st_mtime);/* get local time */ + /* calculate time delta */ + i = t->tm_hour * 60 + t->tm_min - i; + if (k = t->tm_yday - k) i += ((k < 0) == (abs (k) == 1)) ? -24*60 : 24*60; + k = abs (i); /* time from UTC either way */ + elt->hours = t->tm_hour; elt->minutes = t->tm_min; elt->seconds = t->tm_sec; + elt->day = t->tm_mday; elt->month = t->tm_mon + 1; + elt->year = t->tm_year - (BASEYEAR - 1900); + elt->zoccident = (k == i) ? 0 : 1; + elt->zhours = k/60; + elt->zminutes = k % 60; + sprintf (tmp,"%s, %d %s %d %02d:%02d:%02d %c%02d%02d", + days[t->tm_wday],t->tm_mday,months[t->tm_mon],t->tm_year+1900, + t->tm_hour,t->tm_min,t->tm_sec,elt->zoccident ? '-' : '+', + elt->zhours,elt->zminutes); + /* set up Date field */ + LOCAL->env->date = cpystr (tmp); + + /* fill in From field from file owner */ + LOCAL->env->from = mail_newaddr (); + if (pw = getpwuid (sbuf.st_uid)) strcpy (tmp,pw->pw_name); + else sprintf (tmp,"User-Number-%ld",(long) sbuf.st_uid); + LOCAL->env->from->mailbox = cpystr (tmp); + LOCAL->env->from->host = cpystr (mylocalhost ()); + /* set subject to be mailbox name */ + LOCAL->env->subject = cpystr (stream->mailbox); + /* slurp the data */ + (buf = &elt->private.special.text)->size = sbuf.st_size; + read (fd,buf->data = (unsigned char *) fs_get (buf->size + 1),buf->size); + buf->data[buf->size] = '\0'; + close (fd); /* close the file */ + /* analyze data type */ + if (i = phile_type (buf->data,buf->size,&j)) { + LOCAL->body->type = TYPETEXT; + LOCAL->body->subtype = cpystr ("PLAIN"); + if (!(i & PTYPECRTEXT)) { /* change Internet newline format as needed */ + s = (char *) buf->data; /* make copy of UNIX-format string */ + buf->data = NIL; /* zap the buffer */ + buf->size = strcrlfcpy (&buf->data,&m,s,buf->size); + fs_give ((void **) &s); /* flush original UNIX-format string */ + } + LOCAL->body->parameter = mail_newbody_parameter (); + LOCAL->body->parameter->attribute = cpystr ("charset"); + LOCAL->body->parameter->value = + cpystr ((i & PTYPEISO2022JP) ? "ISO-2022-JP" : + (i & PTYPEISO2022KR) ? "ISO-2022-KR" : + (i & PTYPEISO2022CN) ? "ISO-2022-CN" : + (i & PTYPE8) ? "X-UNKNOWN" : "US-ASCII"); + LOCAL->body->encoding = (i & PTYPE8) ? ENC8BIT : ENC7BIT; + LOCAL->body->size.lines = j; + } + else { /* binary data */ + LOCAL->body->type = TYPEAPPLICATION; + LOCAL->body->subtype = cpystr ("OCTET-STREAM"); + LOCAL->body->parameter = mail_newbody_parameter (); + LOCAL->body->parameter->attribute = cpystr ("name"); + LOCAL->body->parameter->value = + cpystr ((s = (strrchr (stream->mailbox,'/'))) ? s+1 : stream->mailbox); + LOCAL->body->encoding = ENCBASE64; + buf->data = rfc822_binary (s = (char *) buf->data,buf->size,&buf->size); + fs_give ((void **) &s); /* flush originary binary contents */ + } + phile_header (stream,1,&j,NIL); + LOCAL->body->size.bytes = LOCAL->body->contents.text.size = buf->size; + elt->rfc822_size = j + buf->size; + /* only one message ever... */ + stream->uid_validity = sbuf.st_mtime; + stream->uid_last = elt->private.uid = 1; + return stream; /* return stream alive to caller */ +} + +/* File determine data type + * Accepts: data to examine + * size of data + * pointer to line count return + * Returns: PTYPE mask of data type + */ + +int phile_type (unsigned char *s,unsigned long i,unsigned long *j) +{ + int ret = PTYPETEXT; + char *charvec = "bbbbbbbaaalaacaabbbbbbbbbbbebbbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"; + *j = 0; /* no lines */ + /* check type of every character */ + while (i--) switch (charvec[*s++]) { + case 'A': + ret |= PTYPE8; /* 8bit character */ + break; + case 'a': + break; /* ASCII character */ + case 'b': + return PTYPEBINARY; /* binary byte seen, stop immediately */ + case 'c': + ret |= PTYPECRTEXT; /* CR indicates Internet text */ + break; + case 'e': /* ESC */ + if (*s == '$') { /* ISO-2022 sequence? */ + switch (s[1]) { + case 'B': case '@': ret |= PTYPEISO2022JP; break; + case ')': + switch (s[2]) { + case 'A': case 'E': case 'G': ret |= PTYPEISO2022CN; break; + case 'C': ret |= PTYPEISO2022KR; break; + } + case '*': + switch (s[2]) { + case 'H': ret |= PTYPEISO2022CN; break; + } + case '+': + switch (s[2]) { + case 'I': case 'J': case 'K': case 'L': case 'M': + ret |= PTYPEISO2022CN; break; + } + } + } + break; + case 'l': /* newline */ + (*j)++; + break; + } + return ret; /* return type of data */ +} + +/* File close + * Accepts: MAIL stream + * close options + */ + +void phile_close (MAILSTREAM *stream,long options) +{ + if (LOCAL) { /* only if a file is open */ + fs_give ((void **) &mail_elt (stream,1)->private.special.text.data); + /* nuke the local data */ + fs_give ((void **) &stream->local); + stream->dtb = NIL; /* log out the DTB */ + } +} + +/* File fetch structure + * Accepts: MAIL stream + * message # to fetch + * pointer to return body + * option flags + * Returns: envelope of this message, body returned in body value + * + * Fetches the "fast" information as well + */ + +ENVELOPE *phile_structure (MAILSTREAM *stream,unsigned long msgno,BODY **body, + long flags) +{ + if (body) *body = LOCAL->body; + return LOCAL->env; /* return the envelope */ +} + + +/* File fetch message header + * Accepts: MAIL stream + * message # to fetch + * pointer to returned header text length + * option flags + * Returns: message header in RFC822 format + */ + +char *phile_header (MAILSTREAM *stream,unsigned long msgno, + unsigned long *length,long flags) +{ + rfc822_header (LOCAL->tmp,LOCAL->env,LOCAL->body); + *length = strlen (LOCAL->tmp); + return LOCAL->tmp; +} + + +/* File fetch message text (body only) + * Accepts: MAIL stream + * message # to fetch + * pointer to returned stringstruct + * option flags + * Returns: T, always + */ + +long phile_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags) +{ + SIZEDTEXT *buf = &mail_elt (stream,msgno)->private.special.text; + if (!(flags &FT_PEEK)) { /* mark message as seen */ + mail_elt (stream,msgno)->seen = T; + mm_flags (stream,msgno); + } + INIT (bs,mail_string,buf->data,buf->size); + return T; +} + +/* File ping mailbox + * Accepts: MAIL stream + * Returns: T if stream alive, else NIL + * No-op for readonly files, since read/writer can expunge it from under us! + */ + +long phile_ping (MAILSTREAM *stream) +{ + return T; +} + +/* File check mailbox + * Accepts: MAIL stream + * No-op for readonly files, since read/writer can expunge it from under us! + */ + +void phile_check (MAILSTREAM *stream) +{ + mm_log ("Check completed",NIL); +} + +/* File expunge mailbox + * Accepts: MAIL stream + * sequence to expunge if non-NIL + * expunge options + * Returns: T if success, NIL if failure + */ + +long phile_expunge (MAILSTREAM *stream,char *sequence,long options) +{ + if (!stream->silent) mm_log ("Expunge ignored on readonly mailbox",NIL); + return LONGT; +} + +/* File copy message(s) + * Accepts: MAIL stream + * sequence + * destination mailbox + * copy options + * Returns: T if copy successful, else NIL + */ + +long phile_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options) +{ + char tmp[MAILTMPLEN]; + mailproxycopy_t pc = + (mailproxycopy_t) mail_parameters (stream,GET_MAILPROXYCOPY,NIL); + if (pc) return (*pc) (stream,sequence,mailbox,options); + sprintf (tmp,"Can't copy - file \"%s\" is not in valid mailbox format", + stream->mailbox); + mm_log (tmp,ERROR); + return NIL; +} + + +/* File append message from stringstruct + * Accepts: MAIL stream + * destination mailbox + * append callback function + * data for callback + * Returns: T if append successful, else NIL + */ + +long phile_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data) +{ + char tmp[MAILTMPLEN],file[MAILTMPLEN]; + char *s = mailboxfile (file,mailbox); + if (s && *s) + sprintf (tmp,"Can't append - not in valid mailbox format: %.80s",s); + else sprintf (tmp,"Can't append - invalid name: %.80s",mailbox); + mm_log (tmp,ERROR); + return NIL; +} |