rsalz@uunet.uu.net (Rich Salz) (04/13/89)
Submitted-by: dsinc!syd@uunet.UU.NET (Syd Weinstein)
Posting-number: Volume 18, Issue 93
Archive-name: elm2.2/part14
#!/bin/sh
# this is part 14 of a multipart archive
# do not concatenate these parts, unpack them in order with /bin/sh
# file src/elm.c continued
#
CurArch=14
if test ! -r s2_seq_.tmp
then echo "Please unpack part 1 first!"
exit 1; fi
( read Scheck
if test "$Scheck" != $CurArch
then echo "Please unpack part $Scheck next!"
exit 1;
else exit 0; fi
) < s2_seq_.tmp || exit 1
echo "x - Continuing file src/elm.c"
sed 's/^X//' << 'SHAR_EOF' >> src/elm.c
X current);
X
X Write_to_screen("Lines : %-5d\t\t\tStatus: A C D E F N O P T U V\n\r", 1,
X current_header->lines);
X Write_to_screen(" \t\t\t c o e x o e l r a r i\n\r", 0);
X Write_to_screen(" \t\t\t t n l p r w d i g g s\n\r", 0);
X Write_to_screen(" \t\t\t n f d d m v d n i\n\r", 0);
X
X sprintf(buffer,
X "\n\rOffset: %ld\t\t\t %d %d %d %d %d",
X current_header->offset,
X (current_header->status & ACTION) != 0,
X (current_header->status & CONFIDENTIAL) != 0,
X (current_header->status & DELETED) != 0,
X (current_header->status & EXPIRED) != 0,
X (current_header->status & FORM_LETTER) != 0);
X sprintf(buffer + strlen(buffer),
X " %d %d %d %d %d %d\n",
X (current_header->status & NEW) != 0,
X (current_header->status & UNREAD) != 0,
X (current_header->status & PRIVATE) != 0,
X (current_header->status & TAGGED) != 0,
X (current_header->status & URGENT) != 0,
X (current_header->status & VISIBLE) != 0);
X
X Write_to_screen(buffer, 0);
X
X sprintf(buffer, "\n\rReceived on: %d/%d/%d at %d:%02d\n\r",
X current_header->received.month+1,
X current_header->received.day,
X current_header->received.year,
X current_header->received.hour,
X current_header->received.minute);
X Write_to_screen(buffer, 0);
X
X sprintf(buffer, "Message sent on: %s, %s %s, %s at %s\n\r",
X current_header->dayname,
X current_header->month,
X current_header->day,
X current_header->year,
X current_header->time);
X Write_to_screen(buffer, 0);
X
X Write_to_screen("From: %s\n\rSubject: %s", 2,
X current_header->from,
X current_header->subject);
X
X Write_to_screen("\n\rPrimary Recipient: %s\nInternal Index Reference Number = %d\n\r", 2,
X current_header->to,
X current_header->index_number);
X
X Write_to_screen("Message-ID: %s\n\r", 1,
X strlen(current_header->messageid) > 0 ?
X current_header->messageid : "<none>");
X
X Write_to_screen("Status: %s\n\r", 1, current_header->mailx_status);
X
X Raw(ON);
X
X PutLine0(LINES,0,"Please Press any key to return.");
X (void) ReadCh();
X}
SHAR_EOF
echo "File src/elm.c is complete"
chmod 0444 src/elm.c || echo "restore of src/elm.c fails"
echo "x - extracting src/encode.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/encode.c &&
X
Xstatic char rcsid[] = "@(#)$Id: encode.c,v 2.9 89/03/25 21:46:13 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 2.9 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@dsinc.UUCP dsinc!elm
X *
X *******************************************************************************
X * $Log: encode.c,v $
X * Revision 2.9 89/03/25 21:46:13 syd
X * Initial 2.2 Release checkin
X *
X *
X ******************************************************************************/
X
X/** This is a heavily mangled version of the 'cypher' program written by
X person or persons unknown.
X
X**/
X
X#include "headers.h"
X
X#define RS 94
X#define RN 4
X#define RMASK 0x7fff /* use only 15 bits */
X
Xstatic char r[RS][RN]; /* rotors */
Xstatic char ir[RS][RN]; /* inverse rotors */
Xstatic char h[RS]; /* half rotor */
Xstatic char s[RS]; /* shuffle vector */
Xstatic int p[RN]; /* rotor indices */
X
Xstatic char the_key[SLEN]; /* unencrypted key */
Xstatic char *encrypted_key; /* encrypted key */
X
Xchar *strncpy(), *strcpy();
Xunsigned long sleep();
X
X#define DECRYPT_PROMPT "Enter decryption key: "
X#define FIRST_ENC_PROMPT "Enter encryption key: "
X#define SECOND_ENC_PROMPT "Please enter it again: "
X#define PROMPT_LINE LINES-1
X
Xgetkey(send)
Xint send;
X{
X /** this routine prompts for and returns an encode/decode
X key for use in the rest of the program. **/
X
X char buffer[2][NLEN];
X
X while (1) {
X PutLine0(PROMPT_LINE, 0, (send ? FIRST_ENC_PROMPT : DECRYPT_PROMPT));
X CleartoEOLN();
X optionally_enter(buffer[0], PROMPT_LINE,
X strlen(send ? FIRST_ENC_PROMPT : DECRYPT_PROMPT), FALSE, TRUE);
X if (send) {
X PutLine0(PROMPT_LINE, 0, SECOND_ENC_PROMPT);
X CleartoEOLN();
X optionally_enter(buffer[1], PROMPT_LINE, strlen(SECOND_ENC_PROMPT),
X FALSE, TRUE);
X if(strcmp(buffer[0], buffer[1]) != 0) {
X error("Your keys were not the same!");
X sleep(1);
X clear_error();
X continue;
X }
X }
X break;
X }
X strcpy(the_key, buffer[0]); /* save unencrypted key */
X makekey(buffer[0]);
X
X setup(); /** initialize the rotors etc. **/
X
X ClearLine(PROMPT_LINE);
X clear_error();
X}
X
Xget_key_no_prompt()
X{
X /** This performs the same action as get_key, but assumes that
X the current value of 'the_key' is acceptable. This is used
X when a message is encrypted twice... **/
X
X char buffer[SLEN];
X
X strcpy(buffer, the_key);
X
X makekey( buffer );
X
X setup();
X}
X
Xencode(line)
Xchar *line;
X{
X /** encrypt or decrypt the specified line. Uses the previously
X entered key... **/
X
X register int i, iindex, j, ph = 0;
X
X for (iindex=0; iindex < strlen(line); iindex++) {
X i = (int) line[iindex];
X
X if ( (i >= ' ') && (i < '~') ) {
X i -= ' ';
X
X for ( j = 0; j < RN; j++ ) /* rotor forwards */
X i = r[(i+p[j])%RS][j];
X
X i = ((h[(i+ph)%RS])-ph+RS)%RS; /* half rotor */
X
X for ( j-- ; j >= 0; j-- ) /* rotor backwards */
X i = (ir[i][j]+RS-p[j])%RS;
X
X j = 0; /* rotate rotors */
X p[0]++;
X while ( p[j] == RS ) {
X p[j] = 0;
X j++;
X if ( j == RN ) break;
X p[j]++;
X }
X
X if ( ++ph == RS )
X ph = 0;
X
X i += ' ';
X }
X
X line[iindex] = (char) i; /* replace with altered one */
X }
X}
X
X
Xmakekey( rkey)
Xchar *rkey;
X{
X /** encrypt the key using the system routine 'crypt' **/
X
X char key[9], salt[2], *crypt();
X
X strncpy( key, rkey, 8);
X key[8] = '\0';
X salt[0] = key[0];
X salt[1] = key[1];
X#ifdef CRYPT
X encrypted_key = crypt( key, salt);
X#else
X encrypted_key = key;
X#endif
X}
X
X/*
X * shuffle rotors.
X * shuffle each of the rotors indiscriminately. shuffle the half-rotor
X * using a special obvious and not very tricky algorithm which is not as
X * sophisticated as the one in crypt(1) and Oh God, I'm so depressed.
X * After all this is done build the inverses of the rotors.
X */
X
Xsetup()
X{
X register long i, j, k, temp;
X long seed;
X
X for ( j = 0; j < RN; j++ ) {
X p[j] = 0;
X for ( i = 0; i < RS; i++ )
X r[i][j] = i;
X }
X
X seed = 123;
X for ( i = 0; i < 13; i++) /* now personalize the seed */
X seed = (seed*encrypted_key[i] + i) & RMASK;
X
X for ( i = 0; i < RS; i++ ) /* initialize shuffle vector */
X h[i] = s[i] = i;
X
X for ( i = 0; i < RS; i++) { /* shuffle the vector */
X seed = (5 * seed + encrypted_key[i%13]) & RMASK;;
X k = ((seed % 65521) & RMASK) % RS;
X temp = s[k];
X s[k] = s[i];
X s[i] = temp;
X }
X
X for ( i = 0; i < RS; i += 2 ) { /* scramble the half-rotor */
X temp = h[s[i]]; /* swap rotor elements ONCE */
X h[s[i]] = h[s[i+1]];
X h[s[i+1]] = temp;
X }
X
X for ( j = 0; j < RN; j++) { /* select a rotor */
X
X for ( i = 0; i < RS; i++) { /* shuffle the vector */
X seed = (5 * seed + encrypted_key[i%13]) & RMASK;;
X k = ((seed % 65521) & RMASK) % RS;
X temp = r[i][j];
X r[i][j] = r[k][j];
X r[k][j] = temp;
X }
X
X for ( i = 0; i < RS; i++) /* create inverse rotors */
X ir[r[i][j]][j] = i;
X }
X}
SHAR_EOF
chmod 0444 src/encode.c || echo "restore of src/encode.c fails"
echo "x - extracting src/errno.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/errno.c &&
X
Xstatic char rcsid[] = "@(#)$Id: errno.c,v 2.3 89/03/25 21:46:14 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 2.3 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@dsinc.UUCP dsinc!elm
X *
X *******************************************************************************
X * $Log: errno.c,v $
X * Revision 2.3 89/03/25 21:46:14 syd
X * Initial 2.2 Release checkin
X *
X *
X ******************************************************************************/
X
X/** This routine maps error numbers to error names and error messages.
X These are all directly ripped out of the include file errno.h, and
X are HOPEFULLY standardized across the different breeds of Unix!!
X
X If (alas) yours are different, you should be able to use awk to
X mangle your errno.h file quite simply...
X
X**/
X
X#include "headers.h"
X
Xchar *err_name[] = {
X/* 0 */ "NOERROR", "No error status currently",
X/* 1 */ "EPERM", "Not super-user",
X/* 2 */ "ENOENT", "No such file or directory",
X/* 3 */ "ESRCH", "No such process",
X/* 4 */ "EINTR", "Interrupted system call",
X/* 5 */ "EIO", "I/O error",
X/* 6 */ "ENXIO", "No such device or address",
X/* 7 */ "E2BIG", "Arg list too long",
X/* 8 */ "ENOEXEC", "Exec format error",
X/* 9 */ "EBADF", "Bad file number",
X/* 10 */ "ECHILD", "No children",
X/* 11 */ "EAGAIN", "No more processes",
X/* 12 */ "ENOMEM", "Not enough core",
X/* 13 */ "EACCES", "Permission denied",
X/* 14 */ "EFAULT", "Bad address",
X/* 15 */ "ENOTBLK", "Block device required",
X/* 16 */ "EBUSY", "Mount device busy",
X/* 17 */ "EEXIST", "File exists",
X/* 18 */ "EXDEV", "Cross-device link",
X/* 19 */ "ENODEV", "No such device",
X/* 20 */ "ENOTDIR", "Not a directory",
X/* 21 */ "EISDIR", "Is a directory",
X/* 22 */ "EINVAL", "Invalid argument",
X/* 23 */ "ENFILE", "File table overflow",
X/* 24 */ "EMFILE", "Too many open files",
X/* 25 */ "ENOTTY", "Not a typewriter",
X/* 26 */ "ETXTBSY", "Text file busy",
X/* 27 */ "EFBIG", "File too large",
X/* 28 */ "ENOSPC", "No space left on device",
X/* 29 */ "ESPIPE", "Illegal seek",
X/* 30 */ "EROFS", "Read only file system",
X/* 31 */ "EMLINK", "Too many links",
X/* 32 */ "EPIPE", "Broken pipe",
X/* 33 */ "EDOM", "Math arg out of domain of func",
X/* 34 */ "ERANGE", "Math result not representable",
X/* 35 */ "ENOMSG", "No message of desired type",
X/* 36 */ "EIDRM", "Identifier removed"
X };
X
Xchar *strcpy();
X
Xchar *error_name(errnumber)
Xint errnumber;
X{
X static char buffer[50];
X
X if (errnumber < 0 || errnumber > 36)
X sprintf(buffer,"ERR-UNKNOWN (%d)", errnumber);
X else
X strcpy(buffer, err_name[2*errnumber]);
X
X return( (char *) buffer);
X}
X
Xchar *error_description(errnumber)
Xint errnumber;
X{
X static char buffer[50];
X
X if (errnumber < 0 || errnumber > 36)
X sprintf(buffer,"Unknown error - %d - No description", errnumber);
X else
X strcpy(buffer, err_name[2*errnumber + 1]);
X
X return ( (char *) buffer);
X}
SHAR_EOF
chmod 0444 src/errno.c || echo "restore of src/errno.c fails"
echo "x - extracting src/expires.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/expires.c &&
X
Xstatic char rcsid[] = "@(#)$Id: expires.c,v 2.5 89/03/25 21:46:16 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 2.5 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@dsinc.UUCP dsinc!elm
X *
X *******************************************************************************
X * $Log: expires.c,v $
X * Revision 2.5 89/03/25 21:46:16 syd
X * Initial 2.2 Release checkin
X *
X *
X ******************************************************************************/
X
X/** This routine is written to deal with the Expires: header on the
X individual mail coming in. What it does is to look at the date,
X compare it to todays date, then set the EXPIRED flag on the
X current message if it is true...
X**/
X
X#include "headers.h"
X
X#ifdef BSD
X# ifdef TMINSYS
X# include <sys/time.h>
X# else
X# include <time.h>
X# include <sys/types.h>
X# include <sys/timeb.h>
X# endif
X#else
X# include <time.h>
X#endif
X
X#include <ctype.h>
X
X#ifdef BSD
X#undef toupper
X#undef tolower
X#endif
X
Xprocess_expiration_date(date, message_status)
Xchar *date;
Xint *message_status;
X{
X struct tm *timestruct, *localtime();
X long thetime, time();
X char word1[WLEN], word2[WLEN], word3[WLEN], word4[WLEN], word5[WLEN];
X int month = 0, day = 0, year = 0, hour = 0, minute = 0;
X
X /** first step is to break down the date given into MM DD YY HH MM
X format: The possible formats for this field are, by example:
X
X (1) Mon, Jun 11, 87
X (2) Mon, 11 Jun 87
X (3) Jun 11, 87
X (4) 11 Jun 87
X (5) 11/06/87 <- ambiguous - will be ignored!!
X (6) 8711061248GMT
X (7) Mon, Jun 11, 87 12:48:35 GMT
X
X The reason #5 is considered ambiguous will be made clear
X if we consider a message to be expired on Jan 4, 88:
X 01/04/88 in the United States
X 04/01/88 in Europe
X so is the first field the month or the day? Standard prob.
X **/
X
X sscanf(date, "%s %s %s %s %s",
X word1, word2, word3, word4, word5);
X
X if (strlen(word5) != 0) { /* we have form #7 */
X day = atoi(word1);
X month = month_number(word2);
X year = atoi(word3);
X sscanf(word4, "%02d%*c%02d",
X &hour, &minute);
X }
X else if (strlen(word2) == 0) { /* we have form #6 or form #5 */
X if (isdigit(word1[1]) && isdigit(word1[2])) /* form #6 */
X sscanf(word1, "%02d%02d%02d%02d%02d%*c",
X &year, &month, &day, &hour, &minute);
X }
X else if (strlen(word4) != 0) { /* form #1 or form #2 */
X if(isdigit(word2[0])) { /* form #2 */
X month = month_number(word3);
X day = atoi(word2);
X year = atoi(word4);
X } else { /* form #1 */
X month = month_number(word2);
X day = atoi(word3);
X year = atoi(word4);
X }
X }
X else if (! isdigit(word1[0])) { /* form #3 */
X month = month_number(word1);
X day = atoi(word2);
X year = atoi(word3);
X }
X else { /* form #4 */
X day = atoi(word1);
X month = month_number(word2);
X year = atoi(word3);
X }
X
X if (day == 0 || year == 0)
X return; /* we didn't get a valid date */
X
X /** next let's get the current time and date, please **/
X
X thetime = time((long *) 0);
X
X timestruct = localtime(&thetime);
X
X /** and compare 'em **/
X
X if (year > timestruct->tm_year)
X return;
X else if (year < timestruct->tm_year)
X goto expire_message;
X
X if (month > timestruct->tm_mon)
X return;
X else if (month < timestruct->tm_mon)
X goto expire_message;
X
X if (day > timestruct->tm_mday)
X return;
X else if (day < timestruct->tm_mday)
X goto expire_message;
X
X if (hour > timestruct->tm_hour)
X return;
X else if (hour < timestruct->tm_hour)
X goto expire_message;
X
X if (minute > timestruct->tm_min)
X return;
X
Xexpire_message:
X
X /** it's EXPIRED! Yow!! **/
X
X (*message_status) |= EXPIRED;
X}
SHAR_EOF
chmod 0444 src/expires.c || echo "restore of src/expires.c fails"
echo "x - extracting src/file.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/file.c &&
X
Xstatic char rcsid[] = "@(#)$Id: file.c,v 2.19 89/03/25 21:46:17 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 2.19 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@dsinc.UUCP dsinc!elm
X *
X *******************************************************************************
X * $Log: file.c,v $
X * Revision 2.19 89/03/25 21:46:17 syd
X * Initial 2.2 Release checkin
X *
X *
X ******************************************************************************/
X
X/** File I/O routines, mostly the save to file command...
X
X**/
X
X#include "headers.h"
X#include <ctype.h>
X#include <errno.h>
X
X#ifdef BSD
X#undef tolower
X#endif
X
Xextern int errno;
X
Xchar *error_name(), *error_description(), *strcpy(), *getenv(), *nameof();
Xunsigned long sleep();
X
Xint
Xsave(redraw, silently, delete)
Xint *redraw, silently, delete;
X{
X /** Save all tagged messages + current in a folder. If no messages
X are tagged, save the current message instead! This routine
X will return ZERO if the operation failed.
X 'redraw' is set to TRUE iff we use the '?' and mess up
X the screen. Pretty reasonable, eh? If "silently" is set,
X then don't output the "D" character upon marking for
X deletion...
X If delete is set, then delete the saved messages, else
X we are just copying the messages without deletion.
X **/
X
X register int tagged = 0, i, oldstat, appending = 0;
X int mesgnum; /* message whose address is used for save-by-name fn */
X char filename[SLEN], address[SLEN], buffer[SLEN];
X static char helpmsg[LONG_STRING];
X FILE *save_file;
X
X oldstat = headers[current-1]->status; /* remember */
X *redraw = FALSE;
X
X for (i=0; i < message_count; i++) {
X if (ison(headers[i]->status, TAGGED)) {
X if(!tagged)
X mesgnum = i; /* first tagged msg - use this one for
X * save-by-name folder name */
X tagged++;
X }
X }
X
X if (tagged == 0) {
X mesgnum = current-1; /* use this one for save-by-name folder name */
X tagged = 1;
X setit(headers[current-1]->status, TAGGED);
X }
X
X dprint(4, (debugfile, "%d message%s tagged for saving (save)\n", tagged,
X plural(tagged)));
X
X while (1) {
X
X PutLine2(LINES-2, 0, "%s message%s to: ",
X (delete ? "Save" : "Copy"), plural(tagged));
X
X if (save_by_name) {
X /** build default filename to save to **/
X get_return(address, mesgnum);
X get_return_name(address, buffer, TRUE);
X if(strcmp(buffer, username) == 0) {
X get_existing_address(address, mesgnum);
X get_return_name(address, buffer, TRUE);
X }
X sprintf(filename, "=%s", buffer);
X }
X else
X filename[0] = '\0';
X
X if (tagged > 1)
X optionally_enter(filename, LINES-2, 19, FALSE, FALSE);
X else
X optionally_enter(filename, LINES-2, 18, FALSE, FALSE);
X
X
X if (strlen(filename) == 0) { /** <return> means 'cancel', right? **/
X headers[current-1]->status = oldstat; /* BACK! */
X return(0);
X }
X
X if (strcmp(filename,"?") == 0) { /* user asked for listing */
X *redraw = TRUE; /* set the flag so we know what to do later */
X if(!*helpmsg) { /* format helpmsg if not yet done */
X
X strcpy(helpmsg, "\n\r\n\rEnter: <nothing> to not ");
X strcat(helpmsg, (delete ? "save" : "copy"));
X strcat(helpmsg, " your message");
X strcat(helpmsg, (plural(tagged) ? "s" : ""));
X strcat(helpmsg, "\n\r '>' to ");
X strcat(helpmsg, (delete ? "save" : "copy"));
X strcat(helpmsg, " your message");
X strcat(helpmsg, (plural(tagged) ? "s" : ""));
X strcat(helpmsg, " to your \"received\" folder (");
X strcat(helpmsg, nameof(recvd_mail));
X strcat(helpmsg, ")\n\r '<' to ");
X strcat(helpmsg, (delete ? "save" : "copy"));
X strcat(helpmsg, " your message");
X strcat(helpmsg, (plural(tagged) ? "s" : ""));
X strcat(helpmsg, " to your \"sent\" folder (");
X strcat(helpmsg, nameof(sent_mail));
X strcat(helpmsg, ") \n\r a filename");
X strcat(helpmsg, " (leading '=' denotes your folder directory ");
X strcat(helpmsg, folders);
X strcat(helpmsg, ").\n\r");
X }
X
X list_folders(4, helpmsg);
X continue;
X }
X
X /* else - got a folder name - check it out */
X if (! expand_filename(filename, TRUE)) {
X dprint(2, (debugfile,
X "Error: Failed on expansion of filename %s (save)\n",
X filename));
X continue;
X }
X if ((errno = can_open(filename, "a"))) {
X error2("Cannot %s message to folder %s!",
X delete ? "save":"copy", filename);
X continue;
X }
X break; /* got a valid filename */
X }
X
X save_file_stats(filename);
X
X if (access(filename,ACCESS_EXISTS)== 0) /* already there!! */
X appending = 1;
X
X dprint(4,(debugfile, "Saving mail to folder '%s'...\n", filename));
X
X if ((save_file = fopen(filename,"a")) == NULL) {
X dprint(2, (debugfile,
X "Error: couldn't append to specified folder %s (save)\n",
X filename));
X error1("Couldn't append to folder %s!", filename);
X headers[current-1]->status = oldstat; /* BACK! */
X return(0);
X }
X
X /* if we need a redraw that means index screen no longer present
X * so whatever silently was, now it's true - we can't show those
X * delete markings.
X */
X if(*redraw) silently = TRUE;
X
X for (i=0; i < message_count; i++) /* save each tagged msg */
X if (headers[i]->status & TAGGED)
X save_message(i, filename, save_file, (tagged > 1), appending++,
X silently, delete);
X
X fclose(save_file);
X
X restore_file_stats(filename);
X
X if (tagged > 1)
X error2("Message%s %s.", plural(tagged), delete ? "saved": "copied");
X return(1);
X}
X
Xint
Xsave_message(number, filename, fd, pause, appending, silently, delete)
Xint number, pause, appending, silently, delete;
Xchar *filename;
XFILE *fd;
X{
X /** Save an actual message to a folder. This is called by
X "save()" only! The parameters are the message number,
X and the name and file descriptor of the folder to save to.
X If 'pause' is true, a sleep(2) will be done after the
X saved message appears on the screen...
X 'appending' is only true if the folder already exists
X If 'delete' is true, mark the message for deletion.
X **/
X
X register int save_current, is_new;
X
X dprint(4, (debugfile, "\tSaving message %d to folder...\n", number));
X
X save_current = current;
X current = number+1;
X
X /* change status from NEW before copy and reset to what it was
X * so that copy doesn't look new, but we can preserve new status
X * of message in this mailfile. This is important because if
X * user does a resync, we don't want NEW status to be lost.
X * I.e. NEW becomes UNREAD when we "really" leave a mailfile.
X */
X if(is_new = ison(headers[number]->status, NEW))
X clearit(headers[number]->status, NEW);
X copy_message("", fd, FALSE, FALSE, TRUE);
X if(is_new)
X setit(headers[number]->status, NEW);
X current = save_current;
X
X if (delete)
X setit(headers[number]->status, DELETED); /* deleted, but ... */
X clearit(headers[number]->status, TAGGED); /* not tagged anymore */
X
X if (appending)
X error2("Message %d appended to folder %s.", number+1, filename);
X else
X error3("Message %d %s to folder %s.", number+1,
X delete ? "saved" : "copied", filename);
X
X if (! silently)
X show_new_status(number); /* update screen, if needed */
X
X if (pause && ! silently) sleep(2);
X}
X
Xint
Xexpand_filename(filename, use_cursor_control)
Xchar *filename;
Xint use_cursor_control;
X{
X /** Expands ~ to the user's home directory
X =,+,% to the user's folder's directory
X ! to the user's incoming mailbox
X > to the user's received folder
X < to the user's sent folder
X shell variables (begun with $)
X
X Returns 1 upon proper expansions
X 0 upon failed expansions
X **/
X
X char temp_filename[SLEN], varname[SLEN], env_value[SLEN], *ptr;
X register int i = 1, iindex = 0;
X char *getenv();
X
X ptr = filename;
X while (*ptr == ' ') ptr++; /* leading spaces GONE! */
X strcpy(temp_filename, ptr);
X
X /** New stuff - make sure no illegal char as last **/
X if (lastch(temp_filename) == '\n' || lastch(temp_filename) == '\r')
X lastch(temp_filename) = '\0';
X
X if (temp_filename[0] == '~') {
X sprintf(filename, "%s%s%s", home,
X (temp_filename[1] != '/' && lastch(folders) != '/')? "/" : "",
X &temp_filename[1]);
X }
X else if (temp_filename[0] == '=' || temp_filename[0] == '+' ||
X temp_filename[0] == '%') {
X sprintf(filename, "%s%s%s", folders,
X (temp_filename[1] != '/' && lastch(folders) != '/')? "/" : "",
X &temp_filename[1]);
X }
X else if (temp_filename[0] == '$') { /* env variable! */
X while (isalnum(temp_filename[i]))
X varname[iindex++] = temp_filename[i++];
X varname[iindex] = '\0';
X
X env_value[0] = '\0'; /* null string for strlen! */
X if (getenv(varname) != NULL)
X strcpy(env_value, getenv(varname));
X
X if (strlen(env_value) == 0) {
X dprint(3,(debugfile,
X "Error: Can't expand environment variable $%s (%s)\n",
X varname, "expand_filename"));
X if(use_cursor_control)
X error1("Don't know what the value of $%s is!", varname);
X else
X printf("\n\rDon't know what the value of $%s is!\n\r", varname);
X return(0);
X }
X
X sprintf(filename, "%s%s%s", env_value,
X (temp_filename[i] != '/' && lastch(env_value) != '/')? "/" : "",
X &temp_filename[1]);
X
X } else if (strcmp(temp_filename, "!") == 0) {
X strcpy(filename, defaultfile);
X } else if (strcmp(temp_filename, ">") == 0) {
X strcpy(filename, recvd_mail);
X } else if (strcmp(temp_filename, "<") == 0) {
X strcpy(filename, sent_mail);
X } else
X strcpy(filename, temp_filename);
X
X return(1);
X}
SHAR_EOF
chmod 0444 src/file.c || echo "restore of src/file.c fails"
echo "x - extracting src/file_util.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/file_util.c &&
X
Xstatic char rcsid[] = "@(#)$Id: file_util.c,v 2.8 89/03/25 21:46:19 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 2.8 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@dsinc.UUCP dsinc!elm
X *
X *******************************************************************************
X * $Log: file_util.c,v $
X * Revision 2.8 89/03/25 21:46:19 syd
X * Initial 2.2 Release checkin
X *
X *
X ******************************************************************************/
X
X/** File oriented utility routines for ELM
X
X**/
X
X#include "headers.h"
X#include <sys/types.h>
X#include <sys/stat.h>
X#include <ctype.h>
X#include <errno.h>
X
X#ifdef BSD
X# undef tolower
X#endif
X
X#include <signal.h>
X#include <errno.h>
X
X#ifdef BSD
X# include <sys/wait.h>
X#endif
X
Xextern int errno; /* system error number */
X
Xchar *error_name(), *error_description(), *strcpy(), *getlogin();
Xlong fsize();
X
Xlong
Xbytes(name)
Xchar *name;
X{
X /** return the number of bytes in the specified file. This
X is to check to see if new mail has arrived.... (also
X see "fsize()" to see how we can get the same information
X on an opened file descriptor slightly more quickly)
X **/
X
X int ok = 1;
X extern int errno; /* system error number! */
X struct stat buffer;
X
X if (stat(name, &buffer) != 0)
X if (errno != 2) {
X dprint(1,(debugfile,
X "Error: errno %s on fstat of file %s (bytes)\n",
X error_name(errno), name));
X Write_to_screen("\n\rError attempting fstat on file %s!\n\r",
X 1, name);
X Write_to_screen("** %s - %s. **\n\r", 2, error_name(errno),
X error_description(errno));
X emergency_exit();
X }
X else
X ok = 0;
X
X return(ok ? (long) buffer.st_size : 0L);
X}
X
Xint
Xcan_access(file, mode)
Xchar *file;
Xint mode;
X{
X /** returns ZERO iff user can access file or "errno" otherwise **/
X
X int the_stat = 0, pid, w;
X void _exit(), exit();
X#ifdef BSD
X union wait status;
X#else
X int status;
X#endif
X#ifdef VOIDSIG
X register void (*istat)(), (*qstat)();
X#else
X register int (*istat)(), (*qstat)();
X#endif
X
X if ((pid = vfork()) == 0) {
X setgid(groupid);
X setuid(userid); /** back to normal userid **/
X
X errno = 0;
X
X if (access(file, mode) == 0)
X _exit(0);
X else
X _exit(errno != 0? errno : 1); /* never return zero! */
X _exit(127);
X }
X
X istat = signal(SIGINT, SIG_IGN);
X qstat = signal(SIGQUIT, SIG_IGN);
X
X while ((w = wait(&status)) != pid && w != -1)
X ;
X
X#ifdef BSD
X the_stat = status.w_retcode;
X#else
X the_stat = status >> 8;
X#endif
X
X signal(SIGINT, istat);
X signal(SIGQUIT, qstat);
X
X return(the_stat);
X}
X
Xint
Xcan_open(file, mode)
Xchar *file, *mode;
X{
X /** Returns 0 iff user can open the file. This is not
X the same as can_access - it's used for when the file might
X not exist... **/
X
X FILE *fd;
X int the_stat = 0, pid, w, preexisted = 0;
X void _exit(), exit();
X#ifdef BSD
X union wait status;
X#else
X int status;
X#endif
X#ifdef VOIDSIG
X register void (*istat)(), (*qstat)();
X#else
X register int (*istat)(), (*qstat)();
X#endif
X
X if ((pid = vfork()) == 0) {
X setgid(groupid);
X setuid(userid); /** back to normal userid **/
X errno = 0;
X if (access(file, ACCESS_EXISTS) == 0)
X preexisted = 1;
X if ((fd = fopen(file, mode)) == NULL)
X _exit(errno);
X else {
X fclose(fd); /* don't just leave it open! */
X if(!preexisted) /* don't leave it if this test created it! */
X unlink(file);
X _exit(0);
X }
X _exit(127);
X }
X
X istat = signal(SIGINT, SIG_IGN);
X qstat = signal(SIGQUIT, SIG_IGN);
X
X while ((w = wait(&status)) != pid && w != -1)
X ;
X
X#ifdef BSD
X the_stat = status.w_retcode;
X#else
X the_stat = status >> 8;
X#endif
X
X signal(SIGINT, istat);
X signal(SIGQUIT, qstat);
X
X return(the_stat);
X}
X
Xint
Xcopy(from, to)
Xchar *from, *to;
X{
X /** this routine copies a specified file to the destination
X specified. Non-zero return code indicates that something
X dreadful happened! **/
X
X FILE *from_file, *to_file;
X char buffer[VERY_LONG_STRING];
X
X if ((from_file = fopen(from, "r")) == NULL) {
X dprint(1, (debugfile, "Error: could not open %s for reading (copy)\n",
X from));
X error1("Could not open file %s.", from);
X return(1);
X }
X
X if ((to_file = fopen(to, "w")) == NULL) {
X dprint(1, (debugfile, "Error: could not open %s for writing (copy)\n",
X to));
X error1("Could not open file %s.", to);
X return(1);
X }
X
X while (fgets(buffer, VERY_LONG_STRING, from_file) != NULL)
X fputs(buffer, to_file);
X
X fclose(from_file);
X fclose(to_file);
X chown( to, userid, groupid);
X
X return(0);
X}
X
Xmove(from, to)
Xchar *from, *to;
X{
X /** This routine moves a specified file to the destination
X specified. It starts by trying to it all by link'ing.
X **/
X
X FILE *from_file, *to_file;
X char buffer[VERY_LONG_STRING];
X
X if (access(from, ACCESS_EXISTS) == -1) /* doesn't exist? */
X return;
X
X /** does the dest file exist?? **/
X
X if (access(to, ACCESS_EXISTS) != -1) { /* dest DOES exist! */
X printf("File %s already exists! Overwriting...\n", to);
X (void) unlink(to);
X }
X
X /** first off, let's try to link() it **/
X
X if (link(from, to) != -1) { /* yeah! */
X return;
X }
X
X /** nope. Let's open 'em both up and move the data... **/
X
X if ((from_file = fopen(from, "r")) == NULL) {
X dprint(1, (debugfile, "Error: could not open %s for reading (copy)\n",
X from));
X printf("Could not open file %s for reading\n", from);
X return;
X }
X
X if ((to_file = fopen(to, "w")) == NULL) {
X dprint(1, (debugfile, "Error: could not open %s for writing (copy)\n",
X to));
X printf("Could not open file %s for writing\n", to);
X return;
X }
X
X while (fgets(buffer, VERY_LONG_STRING, from_file) != NULL)
X fputs(buffer, to_file);
X
X fclose(from_file);
X fclose(to_file);
X chown( to, userid, groupid);
X
X return;
X}
X
X
Xint
Xappend(fd, filename)
XFILE *fd;
Xchar *filename;
X{
X /** This routine appends the specified file to the already
X open file descriptor.. Returns non-zero if fails. **/
X
X FILE *my_fd;
X char buffer[VERY_LONG_STRING];
X
X if ((my_fd = fopen(filename, "r")) == NULL) {
X dprint(1, (debugfile,
X "Error: could not open %s for reading (append)\n", filename));
X return(1);
X }
X
X while (fgets(buffer, VERY_LONG_STRING, my_fd) != NULL)
X fputs(buffer, fd);
X
X fclose(my_fd);
X
X return(0);
X}
X
X#define FORWARDSIGN "Forward to "
Xint
Xcheck_mailfile_size(mfile)
Xchar *mfile;
X{
X /** Check to ensure we have mail. Only used with the '-z'
X starting option. So we output a diagnostic if there is
X no mail to read (including forwarding).
X Return 0 if there is mail,
X <0 if no permission to check,
X 1 if no mail,
X 2 if no mail because mail is being forwarded.
X **/
X
X char firstline[SLEN];
X int retcode;
X struct stat statbuf;
X FILE *fp;
X
X /* see if file exists first */
X if (access(mfile, ACCESS_EXISTS) != 0)
X retcode = 1; /* no file */
X
X /* exists - now see if user has read access */
X else if (can_access(mfile, READ_ACCESS) != 0)
X retcode = -1; /* no perm */
X
X /* read access - now see if file has a reasonable size */
X else if ((fp = fopen(mfile, "r")) == NULL)
X retcode = -1; /* no perm? should have detected this above! */
X else if (fstat(fileno(fp), &statbuf) == -1)
X retcode = -1; /* arg error! */
X else if (statbuf.st_size < 2)
X retcode = 1; /* empty or virtually empty, e.g. just a newline */
X
X /* file has reasonable size - see if forwarding */
X else if (fgets (firstline, SLEN, fp) == NULL)
X retcode = 1; /* empty? should have detected this above! */
X else if (first_word(firstline, FORWARDSIGN))
X retcode = 2; /* forwarding */
X
X /* not forwarding - so file must have some mail in it */
X else
X retcode = 0;
X
X /* now display the appropriate message if there isn't mail in it */
X switch(retcode) {
X
X case -1: printf("You have no permission to read %s!\n\r", mfile);
X break;
X case 1: printf("You have no mail.\n\r");
X break;
X case 2: no_ret(firstline) /* remove newline before using */
X printf("Your mail is being forwarded to %s.\n\r",
X firstline + strlen(FORWARDSIGN));
X break;
X }
X return(retcode);
X}
X
Xcreate_readmsg_file()
X{
X /** Creates the file ".current" in the users home directory
X for use with the "readmsg" program.
X **/
X
X FILE *fd;
X char buffer[SLEN];
X
X sprintf(buffer,"%s/%s", home, readmsg_file);
X
X if ((fd = fopen (buffer, "w")) == NULL) {
X dprint(1, (debugfile,
X "Error: couldn't create file %s - error %s (%s)\n",
X buffer, error_name(errno), "create_readmsg_file"));
X return; /* no error to user */
X }
X
X if (current)
X fprintf(fd, "%d\n", headers[current-1]->index_number);
X else
X fprintf(fd, "\n");
X
X fclose(fd);
X chown( buffer, userid, groupid);
X}
X
Xlong fsize(fd)
XFILE *fd;
X{
X /** return the size of the current file pointed to by the given
X file descriptor - see "bytes()" for the same function with
X filenames instead of open files...
X **/
X
X struct stat buffer;
X
X (void) fstat(fd, &buffer);
X
X return( (long) buffer.st_size );
X}
SHAR_EOF
chmod 0444 src/file_util.c || echo "restore of src/file_util.c fails"
echo "x - extracting src/fileio.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/fileio.c &&
X
Xstatic char rcsid[] = "@(#)$Id: fileio.c,v 2.16 89/03/25 21:46:21 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 2.16 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@dsinc.UUCP dsinc!elm
X *
X *******************************************************************************
X * $Log: fileio.c,v $
X * Revision 2.16 89/03/25 21:46:21 syd
X * Initial 2.2 Release checkin
X *
X *
X ******************************************************************************/
X
X/** File I/O routines, including deletion from the folder!
X
X**/
X
X#include "headers.h"
X#include <sys/types.h>
X#include <sys/stat.h>
X#include <ctype.h>
X#include <errno.h>
X
X#ifdef BSD
X#undef tolower
X#endif
X
Xextern int errno;
X
Xchar *error_name();
X
Xcopy_message(prefix, dest_file, remove_header, remote, update_status)
Xchar *prefix;
XFILE *dest_file;
Xint remove_header, remote, update_status;
X{
X /** Copy current message to destination file, with optional 'prefix'
X as the prefix for each line. If remove_header is true, it will
X skip lines in the message until it finds the end of header line...
X then it will start copying into the file... If remote is true
X then it will append "remote from <hostname>" at the end of the
X very first line of the file (for remailing)
X
X If "forwarding" is true then it'll do some nice things to
X ensure that the forwarded message looks pleasant (e.g. remove
X stuff like ">From " lines and "Received:" lines, and prefix
X the entire message with "Forwarded message:\n" etc etc)
X
X If "update_status" is true then it will write a new Status:
X line at the end of the headers and not copy any existing one.
X **/
X
X char buffer[SLEN];
X register struct header_rec *current_header = headers[current-1];
X register int lines, front_line, next_front,
X in_header = 1, first_line = TRUE, ignoring = FALSE;
X int end_header = 0;
X
X /** get to the first line of the message desired **/
X
X if (fseek(mailfile, current_header->offset, 0) == -1) {
X dprint(1, (debugfile,
X "ERROR: Attempt to seek %d bytes into file failed (%s)",
X current_header->offset, "copy_message"));
X error1("ELM [seek] failed trying to read %d bytes into file.",
X current_header->offset);
X return;
X }
X
X /* how many lines in message? */
X
X lines = current_header->lines;
X
X /* set up for forwarding just in case... */
X
X if (forwarding)
X remove_header = FALSE;
X
X /* now while not EOF & still in message... copy it! */
X
X next_front = TRUE;
X
X while (lines) {
X if (fgets(buffer, SLEN, mailfile) == NULL)
X break;
X
X front_line = next_front;
X
X if(buffer[strlen(buffer)-1] == '\n') {
X lines--; /* got a full line */
X next_front = TRUE;
X }
X else
X next_front = FALSE;
X
X if (front_line && ignoring)
X ignoring = whitespace(buffer[0]);
X
X if (ignoring)
X continue;
X
X if (first_line && forwarding) {
X first_line = FALSE;
X fprintf(dest_file, "Forwarded message:\n\n");
X }
X
X /* are we still in the header? */
X
X if (in_header && front_line) {
X if (strlen(buffer) < 2) {
X in_header = 0;
X end_header = -1;
X } else if ((!isspace(*buffer)) && strchr(buffer, ':') == NULL) {
X in_header = 0;
X end_header = 1;
X }
X if (end_header) {
X if (update_status) {
X if (isoff(current_header->status, NEW)) {
X if (ison(current_header->status, UNREAD))
X fprintf(dest_file, "%sStatus: O\n", prefix);
X else /* read */
X#ifdef BSD
X fprintf(dest_file, "%sStatus: OR\n", prefix);
X#else
X fprintf(dest_file, "%sStatus: RO\n", prefix);
X#endif
X update_status = FALSE; /* do it only once */
X } /* else if NEW - indicate NEW with no Status: line. This is
X * important if we resync a mailfile - we don't want
X * NEW status lost when we copy each message out.
X * It is the responsibility of the function that calls
X * this function to unset NEW as appropriate to its
X * reason for using this function to copy a message
X */
X
X if (end_header > 0)
X fprintf(dest_file, "\n"); /* add the missing newline for RFC 822 */
X }
X }
X }
X
X if (in_header) {
X /* Process checks while in header area */
X
X if (remove_header) {
X ignoring = TRUE;
X continue;
X }
X
X /* add remote on to front? */
X if (first_line && remote) {
X no_ret(buffer);
X fprintf(dest_file, "%s%s remote from %s\n",
X prefix, buffer, hostname);
X first_line = FALSE;
X continue;
X }
X
X if (!forwarding) {
X if(! first_word(buffer, "Status:")) {
X fprintf(dest_file, "%s%s", prefix, buffer);
X continue;
X }
X else if (update_status) {
X ignoring = TRUE;
X continue; /* we will output a new Status: line later. */
X } else {
X fprintf(dest_file, "%sStatus: %s\n", prefix, buffer);
X continue;
X }
X }
X else { /* forwarding */
X
X if (first_word(buffer, "Received:" ) ||
X first_word(buffer, ">From" ) ||
X first_word(buffer, "Status:" ) ||
X first_word(buffer, "Return-Path:"))
X ignoring = TRUE;
X else
X fprintf(dest_file, "%s%s", prefix, buffer);
X }
X }
X else { /* not in header */
X /* Process checks that occur after the header area */
X
X if(first_word(buffer, "From ") && (real_from(buffer, NULL))) {
X dprint(1, (debugfile,
X "\n*** Internal Problem...Tried to add the following;\n"));
X dprint(1, (debugfile,
X " '%s'\nto output file (copy_message) ***\n", buffer));
X break; /* STOP NOW! */
X }
X
X fprintf(dest_file, "%s%s", prefix, buffer);
X }
X }
X if (strlen(buffer) + strlen(prefix) > 1)
X fprintf(dest_file, "\n"); /* blank line to keep mailx happy *sigh* */
X}
X
X
Xstatic struct stat saved_buf;
Xstatic char saved_fname[SLEN];
X
Xint
Xsave_file_stats(fname)
Xchar *fname;
X{
X /* if fname exists, save the owner, group, mode and filename.
X * otherwise flag nothing saved. Return 0 if saved, else -1.
X */
X
X if(stat(fname, &saved_buf) != -1) {
X (void)strcpy(saved_fname, fname);
X dprint(2, (debugfile,
X "** saved stats for file owner = %d group = %d mode = %o %s **\n",
X saved_buf.st_uid, saved_buf.st_gid, saved_buf.st_mode, fname));
X return(0);
X }
X dprint(2, (debugfile,
X "** couldn't save stats for file %s [errno=%d] **\n",
X fname, errno));
X return(-1);
X
X}
X
Xrestore_file_stats(fname)
Xchar *fname;
X{
X /* if fname matches the saved file name, set the owner and group
X * of fname to the saved owner, group and mode,
X * else to the userid and groupid of the user and to 700.
X * Return -1 if the either mode or owner/group not set
X * 0 if the default values were used
X * 1 if the saved values were used
X */
X
X int old_umask, i, new_mode, new_owner, new_group, ret_code;
X
X
X new_mode = 0600;
X new_owner = userid;
X new_group = groupid;
X ret_code = 0;
X
X if(strcmp(fname, saved_fname) == 0) {
X new_mode = saved_buf.st_mode;
X new_owner = saved_buf.st_uid;
X new_group = saved_buf.st_gid;
X ret_code = 1;
X }
X dprint(2, (debugfile, "** %s file stats for %s **\n",
X (ret_code ? "restoring" : "setting"), fname));
X
X old_umask = umask(0);
X if((i = chmod(fname, new_mode & 0777)) == -1)
X ret_code = -1;
X
X dprint(2, (debugfile, "** chmod(%s, %.3o) returns %d [errno=%d] **\n",
X fname, new_mode & 0777, i, errno));
X
X (void) umask(old_umask);
X
X#ifdef BSD
X /*
X * Chown is restricted to root on BSD unix
X */
X (void) chown(fname, new_owner, new_group);
X#else
X if((i = chown(fname, new_owner, new_group)) == -1)
X ret_code = -1;
X
X dprint(2, (debugfile, "** chown(%s, %d, %d) returns %d [errno=%d] **\n",
X fname, new_owner, new_group, i, errno));
X#endif
X
X return(ret_code);
X
X}
X
X/** and finally, here's something for that evil trick: site hiding **/
X
X#ifdef SITE_HIDING
X
Xint
Xis_a_hidden_user(specific_username)
Xchar *specific_username;
X{
X /** Returns true iff the username is present in the list of
X 'hidden users' on the system.
X **/
X
X FILE *hidden_users;
X char buffer[SLEN];
X
X /*
X this line is deliberately inserted to ensure that you THINK
X about what you're doing, and perhaps even contact the author
X of Elm before you USE this option...
X */
X
X if ((hidden_users = fopen (HIDDEN_SITE_USERS,"r")) == NULL) {
X dprint(1, (debugfile,
X "Couldn't open hidden site file %s [%s]\n",
X HIDDEN_SITE_USERS, error_name(errno)));
X return(FALSE);
X }
X
X while (fscanf(hidden_users, "%s", buffer) != EOF)
X if (strcmp(buffer, specific_username) == 0) {
X dprint(3, (debugfile, "** Found user '%s' in hidden site file!\n",
X specific_username));
X fclose(hidden_users);
X return(TRUE);
X }
X
X fclose(hidden_users);
X dprint(3, (debugfile,
X "** Couldn't find user '%s' in hidden site file!\n",
X specific_username));
X
X return(FALSE);
X}
X
X#endif
SHAR_EOF
chmod 0444 src/fileio.c || echo "restore of src/fileio.c fails"
echo "x - extracting src/forms.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/forms.c &&
X
Xstatic char rcsid[] = "@(#)$Id: forms.c,v 2.7 89/03/25 21:46:23 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 2.7 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@dsinc.UUCP dsinc!elm
X *
X *******************************************************************************
X * $Log: forms.c,v $
X * Revision 2.7 89/03/25 21:46:23 syd
X * Initial 2.2 Release checkin
X *
X *
X ******************************************************************************/
X
X/** This set of files supports the 'forms' options (AT&T Mail Forms) to
X the mail system. The specs are drawn from a document from AT&T entitled
X "Standard for Exchanging Forms on AT&T Mail", version 1.9.
X
X**/
X
X/** Some notes on the format of a FORM;
X
X First off, in AT&T Mail parlance, this program only supports SIMPLE
X forms, currently. This means that while each form must have three
X sections;
X
X [options-section]
X ***
X [form-image]
X ***
X [rules-section]
X
X this program will ignore the first and third sections completely. The
X program will assume that the user merely enteres the form-image section,
X and will append and prepend the triple asterisk sequences that *MUST*
X be part of the message. The messages are also expected to have a
X specific header - "Content-Type: mailform" - which will be added on all
X outbound mail and checked on inbound...
X**/
X
X#include "headers.h"
X#include <errno.h>
X
Xextern int errno;
X
Xchar *error_name(), *strcat(), *strcpy();
X
Xcheck_form_file(filename)
Xchar *filename;
X{
X /** This routine returns the number of fields in the specified file,
X or -1 if an error is encountered. **/
X
X FILE *form;
X char buffer[SLEN];
X register int field_count = 0;
X
X if ((form = fopen(filename, "r")) == NULL) {
X error2("Error %s trying to open %s to check fields!",
X error_name(errno), filename);
X return(-1);
X }
X
X while (fgets(buffer, SLEN, form) != NULL) {
X field_count += occurances_of(COLON, buffer);
X }
X
X fclose(form);
X
X return(field_count);
X}
X
Xformat_form(filename)
Xchar *filename;
X{
X /** This routine accepts a validated file that is the middle
X section of a form message and prepends and appends the appropriate
X instructions. It's pretty simple.
X This returns the number of forms in the file, or -1 on errors
X **/
X
X FILE *form, *newform;
X char newfname[SLEN], buffer[SLEN];
X register form_count = 0;
X
X dprint(4, (debugfile, "Formatting form file '%s'\n", filename));
X
X /** first off, let's open the files... **/
X
X if ((form = fopen(filename, "r")) == NULL) {
X error("Can't read the message to validate the form!");
X dprint(1, (debugfile,
X "** Error encountered opening file \"%s\" - %s (check_form) **\n",
X filename, error_name(errno)));
X return(-1);
X }
X
X sprintf(newfname, "%s%d", temp_form_file, getpid());
X
X if ((newform = fopen(newfname, "w")) == NULL) {
X error("Couldn't open newform file for form output!");
X dprint(1, (debugfile,
X "** Error encountered opening file \"%s\" - %s (check_form) **\n",
X newfname, error_name(errno)));
X return(-1);
X }
X
X /** the required header... **/
X
X /* these are actually the defaults, but let's be sure, okay? */
X
X fprintf(newform, "WIDTH=78\nTYPE=SIMPLE\nOUTPUT=TEXT\n***\n");
X
X /** and let's have some fun transfering the stuff across... **/
X
X while (fgets(buffer, SLEN, form) != NULL) {
X fputs(buffer, newform);
X form_count += occurances_of(COLON, buffer);
X }
X
X fprintf(newform, "***\n"); /* that closing bit! */
X
X fclose(form);
X fclose(newform);
X
X if (form_count > 0) {
X if (unlink(filename) != 0) {
X error2("Error %s unlinking file %s.", error_name(errno), filename);
X return(-1);
X }
X if (link(newfname, filename)) {
X error3("Error %s linking %s to %s.", error_name(errno),
X newfname, filename);
X return(-1);
X }
X }
X
X if (unlink(newfname)) {
X error2("Error %s unlinking file %s.", error_name(errno), newfname);
X return(-1);
X }
X
X return(form_count);
SHAR_EOF
echo "End of part 14"
echo "File src/forms.c is continued in part 15"
echo "15" > s2_seq_.tmp
exit 0
--
Please send comp.sources.unix-related mail to rsalz@uunet.uu.net.