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elm2.3
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part20
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Subject: v22i079: ELM mail syste, release 2.3, Part20/26
Newsgroups: comp.sources.unix
Approved: rsalz@uunet.UU.NET
X-Checksum-Snefru: 0c97a24b 2f9763ff a2721b13 d88922bd
Submitted-by: Syd Weinstein <syd@dsinc.dsi.com>
Posting-number: Volume 22, Issue 79
Archive-name: elm2.3/part20
#!/bin/sh
# this is part 20 of a multipart archive
# do not concatenate these parts, unpack them in order with /bin/sh
# file src/read_rc.c continued
#
CurArch=20
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/read_rc.c"
sed 's/^X//' << 'SHAR_EOF' >> src/read_rc.c
X\n\rdirectory to store your elmrc and alias files. Shall I create the\
X\n\rdirectory .elm for you and set it up (y/n)? y%c",BACKSPACE);
X
X fflush(stdout);
X ch=getchar();
X if (ch == 'n' || ch == 'N') {
X printf("No.\n\rVery well. I won't create it.\
X \n\rBut, you may run into difficulties later.\n\r");
X sleep(4);
X }
X else {
X printf("Yes.\n\rGreat! I'll do it now.\n\r");
X create_new_elmdir();
X }
X }
X
X /* Look for the elmrc file */
X sprintf(filename,"%s/%s", home, elmrcfile);
X if ((file = fopen(filename, "r")) == NULL) {
X dprint(2,(debugfile,"Warning:User has no \".elm/elmrc\" file\n\n"));
X
X /* look for old-style .elmrc file in $HOME */
X sprintf(filename, "%s/.elmrc", home);
X if (access(filename, 00) != -1) {
X move_old_files_to_new();
X
X /* try to open elmrc file again */
X sprintf(filename,"%s/%s", home, elmrcfile);
X if((file = fopen(filename, "r")) == NULL) {
X dprint(2, (debugfile,
X "Warning: could not open new \".elm/elmrc\" file.\n"));
X dprint(2, (debugfile, "** %s - %s **\n", error_name(errno),
X error_description(errno)));
X printf("Warning: could not open new \".elm/elmrc\" file!");
X printf(" Using default parameters.\n\r");
X sleep(4);
X }
X }
X }
X
X if(file) {
X int last = ASSIGNMENT, this;
X
X while (fgets(buffer, SLEN, file) != NULL) {
X lineno++;
X no_ret(buffer); /* remove return */
X if (buffer[0] == '#' /* comment */
X || strlen(buffer) < 2) /* empty line */
X continue;
X
X this = ASSIGNMENT;
X
X if(breakup(buffer, word1, word2) == -1)
X continue; /* word2 is null - let default value stand */
X
X strcpy(word1, shift_lower(word1)); /* to lower case */
X
X if (equal(word1,"maildir") || equal(word1,"folders")) {
X strcpy(raw_folders, word2);
X expand_env(folders, word2);
X }
X else if (equal(word1,"tmpdir")) {
X expand_env(temp_dir, word2);
X if (temp_dir[strlen (temp_dir)-1] != '/')
X strcat(temp_dir, "/");
X }
X else if (equal(word1, "fullname") || equal(word1,"username") ||
X equal(word1, "name")) {
X strcpy(full_username, word2);
X }
X else if (equal(word1, "prefix")) {
X for (i=0, len = strlen(word2); i < len; i++)
X prefixchars[i] = (word2[i] == '_' ? ' ' : word2[i]);
X prefixchars[i] = '\0';
X }
X else if (equal(word1, "shell")) {
X strcpy(raw_shell, word2);
X expand_env(shell, word2);
X }
X else if (equal(word1, "sort") || equal(word1, "sortby")) {
X strcpy(word2, shift_lower(word2));
X if (equal(word2, "sent"))
X sortby = SENT_DATE;
X else if (equal(word2, "received") || equal(word2,"recieved"))
X sortby = RECEIVED_DATE;
X else if (equal(word2, "from") || equal(word2, "sender"))
X sortby = SENDER;
X else if (equal(word2, "size") || equal(word2, "lines"))
X sortby = SIZE;
X else if (equal(word2, "subject"))
X sortby = SUBJECT;
X else if (equal(word2, "mailbox") || equal(word2, "folder"))
X sortby = MAILBOX_ORDER;
X else if (equal(word2, "status"))
X sortby = STATUS;
X else if (equal(word2, "reverse-sent") || equal(word2,"rev-sent"))
X sortby = - SENT_DATE;
X else if (strncmp(word2, "reverse-rec",11) == 0 ||
X strncmp(word2,"rev-rec",7) == 0)
X sortby = - RECEIVED_DATE;
X else if (equal(word2, "reverse-from") || equal(word2, "rev-from")
X || equal(word2,"reverse-sender")||equal(word2,"rev-sender"))
X sortby = - SENDER;
X else if (equal(word2, "reverse-size") || equal(word2, "rev-size")
X || equal(word2, "reverse-lines")|| equal(word2,"rev-lines"))
X sortby = - SIZE;
X else if (equal(word2, "reverse-subject") ||
X equal(word2, "rev-subject"))
X sortby = - SUBJECT;
X else if (equal(word2, "reverse-mailbox") ||
X equal(word2, "rev-mailbox") ||
X equal(word2, "reverse-folder") ||
X equal(word2, "rev-folder"))
X sortby = - MAILBOX_ORDER;
X else if (equal(word2, "reverse-status") ||
X equal(word2, "rev-status"))
X sortby = - STATUS;
X else {
X errors++;
X printf(
X "I can't understand sort key %s in line %d in your \".elm/elmrc\" file\n",
X word2, lineno);
X continue;
X }
X }
X else if (equal (word1, "receivedmail") || equal(word1, "mailbox")) {
X /* the last is an old name of this option - here for
X * compatibility in case the user has never written out
X * a new elmrc while in elm since the name change.
X */
X rc_has_recvdmail = TRUE;
X strcpy(raw_recvdmail, word2);
X expand_env(recvd_mail, word2);
X }
X else if (equal(word1, "editor") || equal(word1,"mailedit")) {
X strcpy(raw_editor, word2);
X expand_env(editor, word2);
X }
X else if (equal(word1, "sentmail") ||
X equal(word1, "savemail") || equal(word1, "saveto")) {
X /* the last two were old names of this option - here for
X * compatibility in case the user has never written out
X * a new elmrc while in elm since the name change.
X */
X rc_has_sentmail = TRUE;
X strcpy(raw_sentmail, word2);
X expand_env(sent_mail, word2);
X }
X else if (equal(word1, "calendar")) {
X strcpy(raw_calendar_file, word2);
X expand_env(calendar_file, word2);
X }
X else if (equal(word1, "print") || equal(word1, "printmail")) {
X strcpy(raw_printout, word2);
X expand_env(printout, word2);
X }
X else if (equal(word1, "pager") || equal(word1, "page")) {
X strcpy(raw_pager, word2);
X expand_env(pager, word2);
X if (equal(pager,"builtin+") || equal(pager,"internal+"))
X clear_pages++;
X }
X else if (equal(word1, "signature")) {
X if (equal(shift_lower(word2), "on") ||
X equal(shift_lower(word2), "off")) {
X errors++;
X printf(
X "\"signature\" used in obsolete way in .elm/elmrc file. Ignored!\n\r");
X printf(
X "\t(Signature should specify the filename to use rather than on/off.)\n\r\n");
X }
X else {
X strcpy(raw_local_signature, word2);
X strcpy(raw_remote_signature, raw_local_signature);
X expand_env(local_signature, word2);
X strcpy(remote_signature, local_signature);
X }
X }
X else if (equal(word1, "localsignature")) {
X strcpy(raw_local_signature, word2);
X expand_env(local_signature, word2);
X }
X else if (equal(word1, "remotesignature")) {
X strcpy(raw_remote_signature, word2);
X expand_env(remote_signature, word2);
X }
X else if (equal(word1, "sigdashes")) {
X sig_dashes = is_it_on(word2);
X }
X else if (equal(word1, "escape")) {
X escape_char = word2[0];
X }
X else if (equal(word1, "attribution")) {
X strcpy(attribution, word2);
X }
X else if (equal(word1, "autocopy")) {
X auto_copy = is_it_on(word2);
X }
X else if (equal(word1, "copy") || equal(word1, "auto_cc")) {
X auto_cc = is_it_on(word2);
X }
X else if (equal(word1, "names")) {
X names_only = is_it_on(word2);
X }
X else if (equal(word1, "resolve")) {
X resolve_mode = is_it_on(word2);
X }
X else if (equal(word1, "weed")) {
X filter = is_it_on(word2);
X }
X else if (equal(word1, "noheader")) {
X noheader = is_it_on(word2);
X }
X else if (equal(word1, "titles")) {
X title_messages = is_it_on(word2);
X }
X else if (equal(word1, "savebyname") || equal(word1, "savename")) {
X save_by_name = is_it_on(word2);
X }
X else if (equal(word1, "forcename")) {
X force_name = is_it_on(word2);
X }
X else if (equal(word1, "movepage") || equal(word1, "page") ||
X equal(word1, "movewhenpaged")) {
X move_when_paged = is_it_on(word2);
X }
X else if (equal(word1, "pointnew") || equal(word1, "pointtonew")) {
X point_to_new = is_it_on(word2);
X }
X else if (equal(word1, "keypad") || equal(word1, "hpkeypad")) {
X hp_terminal = is_it_on(word2);
X }
X else if (equal(word1, "softkeys") || equal(word1, "hpsoftkeys")) {
X if (hp_softkeys = is_it_on(word2))
X hp_terminal = TRUE; /* must be set also! */
X }
X else if (equal(word1, "arrow")) {
X arrow_cursor += is_it_on(word2); /* may have been set already */
X }
X else if (strncmp(word1, "form", 4) == 0) {
X allow_forms = (is_it_on(word2)? MAYBE : NO);
X }
X else if (equal(word1, "promptafter")) {
X prompt_after_pager = is_it_on(word2);
X }
X else if (strncmp(word1, "menu", 4) == 0) {
X /* if not turned off by -m cmd line arg,
X * obey elmrc file setting */
X if(mini_menu)
X mini_menu = is_it_on(word2);
X }
X else if (strncmp(word1, "warning", 7) == 0) {
X warnings = is_it_on(word2);
X }
X else if (equal(word1, "alwaysleave")) {
X /* this is an old option - here for
X * compatibility in case the user has never written out
X * a new elmrc while in elm since the split of
X * alwaysleave into alwayskeep and alwaysstore
X */
X always_keep = is_it_on(word2);
X always_store = !is_it_on(word2);
X }
X else if (equal(word1, "alwayskeep")) {
X always_keep = is_it_on(word2);
X }
X else if (equal(word1, "alwaysstore") || equal(word1, "store")) {
X always_store = is_it_on(word2);
X }
X else if (equal(word1, "alwaysdelete") || equal(word1, "delete")) {
X always_del = is_it_on(word2);
X }
X else if (equal(word1, "askcc") || equal(word1, "cc")) {
X prompt_for_cc = is_it_on(word2);
X }
X else if (equal(word1, "ask") || equal(word1, "question")) {
X question_me = is_it_on(word2);
X }
X else if (equal(word1, "keep") || equal(word1, "keepempty")) {
X keep_empty_files = is_it_on(word2);
X }
X else if (equal(word1, "bounce") || equal(word1, "bounceback")) {
X bounceback = atoi(word2);
X if (bounceback > MAX_HOPS) {
X errors++;
X printf(
X "Warning: bounceback is set to greater than %d (max-hops). Ignored.\n",
X MAX_HOPS);
X bounceback = 0;
X }
X }
X else if (equal(word1, "userlevel")) {
X user_level = atoi(word2);
X }
X else if (equal(word1, "timeout")) {
X timeout = atoi(word2);
X if (timeout < 10) {
X errors++;
X printf(
X "Warning: timeout is set to less than 10 seconds. Ignored.\n");
X timeout = 0;
X }
X }
X else if (equal(word1, "weedout")) {
X weedout(word2);
X this = WEEDOUT;
X }
X else if (equal(word1, "alternatives")) {
X alternatives(word2);
X this = ALTERNATIVES;
X }
X else if (last == WEEDOUT) {
X weedout(buffer);
X this = WEEDOUT;
X }
X else if (last == ALTERNATIVES) {
X alternatives(buffer);
X this = ALTERNATIVES;
X }
X else {
X errors++;
X printf(
X "I can't understand line %d in your \".elm/elmrc\" file:\n> %s\n",
X lineno, buffer);
X }
X last = this;
X }
X /* sleep two seconds for each error and then some so user
X * can read them before screen is cleared */
X if(errors)
X sleep((errors * 2) + 2);
X }
X
X /* see if the user has a folders directory */
X if (access(folders, 00) == -1) {
X if(batch_only) {
X printf("\n\rNotice:\
X\n\rELM requires the use of a folders directory to store your mail folders in.\
X\n\rI'd like to create the directory %s for you,\
X\n\rbut I can't in \"batch mode\". Please run ELM in \"normal mode\" first.\
X\n\r", folders);
X exit(0);
X }
X
X printf("\n\rNotice:\
X\n\rELM requires the use of a folders directory to store your mail folders in.\
X\n\rShall I create the directory %s for you (y/n)? y%c", folders, BACKSPACE);
X
X fflush(stdout);
X ch=getchar();
X if (ch == 'n' || ch == 'N') {
X printf("No.\n\rVery well. I won't create it.\
X \n\rBut, you may run into difficulties later.\n\r");
X sleep(4);
X }
X else {
X printf("Yes.\n\rGreat! I'll do it now.\n\r");
X create_new_folders();
X }
X }
X
X /* If recvd_mail or sent_mail havent't yet been established in
X * the elmrc, establish them from their defaults.
X * Then if they begin with a metacharacter, replace it with the
X * folders directory name.
X */
X if(!rc_has_recvdmail) {
X strcpy(raw_recvdmail, default_recvdmail);
X strcpy(recvd_mail, raw_recvdmail);
X }
X if(metachar(recvd_mail[0])) {
X strcpy(buffer, &recvd_mail[1]);
X sprintf(recvd_mail, "%s/%s", folders, buffer);
X }
X
X if(!rc_has_sentmail) {
X sprintf(raw_sentmail, default_sentmail);
X sprintf(sent_mail, default_sentmail);
X }
X if(metachar(sent_mail[0])) {
X strcpy(buffer, &sent_mail[1]);
X sprintf(sent_mail, "%s/%s", folders, buffer);
X }
X
X if (debug > 10) /** only do this if we REALLY want debug! **/
X dump_rc_results();
X
X}
X
Xweedout(string)
Xchar *string;
X{
X /** This routine is called with a list of headers to weed out. **/
X
X char *strptr, *header;
X register int i, len;
X
X strptr = string;
X
X while ((header = strtok(strptr, "\t ,\"'")) != NULL) {
X if (strlen(header) > 0) {
X if (! strcmp(header, "*end-of-user-headers*")) break;
X if (weedcount > MAX_IN_WEEDLIST) {
X printf("Too many weed headers! Leaving...\n");
X exit(1);
X }
X if ((weedlist[weedcount] = pmalloc(strlen(header) + 1))
X == NULL) {
X printf("Too many weed headers! Out of memory! Leaving...\n");
X exit(1);
X }
X
X for (i=0, len = strlen(header); i< len; i++)
X if (header[i] == '_') header[i] = ' ';
X
X strcpy(weedlist[weedcount], header);
X weedcount++;
X }
X strptr = NULL;
X }
X}
X
Xalternatives(string)
Xchar *string;
X{
X /** This routine is called with a list of alternative addresses
X that you may receive mail from (forwarded) **/
X
X char *strptr, *address;
X struct addr_rec *current_record, *previous_record;
X
X previous_record = alternative_addresses; /* start 'er up! */
X /* move to the END of the alternative addresses list */
X
X if (previous_record != NULL)
X while (previous_record->next != NULL)
X previous_record = previous_record->next;
X
X strptr = (char *) string;
X
X while ((address = strtok(strptr, "\t ,\"'")) != NULL) {
X if (previous_record == NULL) {
X previous_record = (struct addr_rec *) pmalloc(sizeof
X *alternative_addresses);
X
X strcpy(previous_record->address, address);
X previous_record->next = NULL;
X alternative_addresses = previous_record;
X }
X else {
X current_record = (struct addr_rec *) pmalloc(sizeof
X *alternative_addresses);
X
X strcpy(current_record->address, address);
X current_record->next = NULL;
X previous_record->next = current_record;
X previous_record = current_record;
X }
X strptr = (char *) NULL;
X }
X}
X
Xdefault_weedlist()
X{
X /** Install the default headers to weed out! Many gracious
X thanks to John Lebovitz for this dynamic method of
X allocation!
X **/
X
X static char *default_list[] = { ">From", "In-Reply-To:",
X "References:", "Newsgroups:", "Received:",
X "Apparently-To:", "Message-Id:", "Content-Type:",
X "From", "X-Mailer:", "Status:",
X "*end-of-defaults*", NULL
X };
X
X for (weedcount = 0; default_list[weedcount] != (char *) 0;weedcount++){
X if ((weedlist[weedcount] =
X pmalloc(strlen(default_list[weedcount]) + 1)) == NULL) {
X printf("\n\rNot enough memory for default weedlist. Leaving.\n\r");
X leave(1);
X }
X strcpy(weedlist[weedcount], default_list[weedcount]);
X }
X}
X
Xint
Xmatches_weedlist(buffer)
Xchar *buffer;
X{
X /** returns true iff the first 'n' characters of 'buffer'
X match an entry of the weedlist **/
X
X register int i;
X
X for (i=0;i < weedcount; i++)
X if (strncmp(buffer, weedlist[i], strlen(weedlist[i])) == 0)
X return(1);
X
X return(0);
X}
X
Xint
Xbreakup(buffer, word1, word2)
Xchar *buffer, *word1, *word2;
X{
X /** This routine breaks buffer down into word1, word2 where
X word1 is alpha characters only, and there is an equal
X sign delimiting the two...
X alpha = beta
X For lines with more than one 'rhs', word2 is set to the
X entire string.
X Return -1 if word 2 is of zero length, else 0.
X **/
X
X register int i;
X
X for (i=0;buffer[i] != '\0' && ok_rc_char(buffer[i]); i++)
X if (buffer[i] == '_')
X word1[i] = '-';
X else if (isupper(buffer[i]))
X word1[i] = tolower(buffer[i]);
X else
X word1[i] = buffer[i];
X
X word1[i++] = '\0'; /* that's the first word! */
X
X /** spaces before equal sign? **/
X
X while (whitespace(buffer[i])) i++;
X if (buffer[i] == '=') i++;
X
X /** spaces after equal sign? **/
X
X while (whitespace(buffer[i])) i++;
X
X if (buffer[i] != '\0')
X strcpy(word2, (char *) (buffer + i));
X else
X word2[0] = '\0';
X
X /* remove trailing spaces from word2! */
X i = strlen(word2) - 1;
X while(i && (whitespace(word2[i]) || word2[i] == '\n'))
X word2[i--] = '\0';
X
X return(*word2 == '\0' ? -1 : 0 );
X
X}
X
Xexpand_env(dest, buffer)
Xchar *dest, *buffer;
X{
X /** expand possible metacharacters in buffer and then copy
X to dest...
X
X BEWARE!! Because strtok() is used on buffer, buffer may be changed.
X
X This routine knows about "~" being the home directory,
X and "$xxx" being an environment variable.
X **/
X
X char *word, *string, next_word[SLEN];
X
X if (buffer[0] == '/') {
X dest[0] = '/';
X dest[1] = '\0';
X }
X else
X dest[0] = '\0';
X
X string = (char *) buffer;
X
X while ((word = strtok(string, "/")) != NULL) {
X if (word[0] == '$') {
X next_word[0] = '\0';
X if (getenv((char *) (word + 1)) != NULL)
X strcpy(next_word, getenv((char *) (word + 1)));
X if (strlen(next_word) == 0)
X leave(printf("\n\rCan't expand environment variable '%s'.\n\r",
X word));
X }
X else if (word[0] == '~' && word[1] == '\0')
X strcpy(next_word, home);
X else
X strcpy(next_word, word);
X
X sprintf(dest, "%s%s%s", dest,
X (strlen(dest) > 0 && lastch(dest) != '/' ? "/":""),
X next_word);
X
X string = (char *) NULL;
X }
X}
X
X#define on_off(s) (s == 1? "ON " : "OFF")
Xdump_rc_results()
X{
X
X register int i, len;
X
X fprintf(debugfile, "folders = %s ", folders);
X fprintf(debugfile, "temp_dir = %s ", temp_dir);
X fprintf(debugfile, "recvd_mail = %s ", recvd_mail);
X fprintf(debugfile, "editor = %s\n", editor);
X fprintf(debugfile, "printout = %s ", printout);
X fprintf(debugfile, "sent_mail = %s ", sent_mail);
X fprintf(debugfile, "calendar_file = %s\n", calendar_file);
X fprintf(debugfile, "prefixchars = %s ", prefixchars);
X fprintf(debugfile, "shell = %s ", shell);
X fprintf(debugfile, "pager = %s\n", pager);
X fprintf(debugfile, "\n");
X fprintf(debugfile, "escape = %c\n", escape_char);
X fprintf(debugfile, "\n");
X
X fprintf(debugfile, "mini_menu = %s ", on_off(mini_menu));
X fprintf(debugfile, "filter_hdrs = %s ", on_off(filter));
X fprintf(debugfile, "auto_copy = %s\n", on_off(auto_copy));
X
X fprintf(debugfile, "resolve_mode = %s ", on_off(resolve_mode));
X fprintf(debugfile, "auto_save_copy = %s ", on_off(auto_cc));
X fprintf(debugfile, "noheader = %s\n", on_off(noheader));
X
X fprintf(debugfile, "title_msgs = %s ", on_off(title_messages));
X fprintf(debugfile, "hp_terminal = %s ", on_off(hp_terminal));
X fprintf(debugfile, "hp_softkeys = %s\n", on_off(hp_softkeys));
X
X fprintf(debugfile, "save_by_name = %s ", on_off(save_by_name));
X fprintf(debugfile, "force_name = %s\n", on_off(force_name));
X
X fprintf(debugfile, "move_paged = %s ", on_off(move_when_paged));
X fprintf(debugfile, "point_to_new = %s ", on_off(point_to_new));
X fprintf(debugfile, "prompt_after_pager = %s ",
X on_off(prompt_after_pager));
X fprintf(debugfile, "bounceback = %s\n", on_off(bounceback));
X
X fprintf(debugfile, "always_keep = %s ", on_off(always_keep));
X fprintf(debugfile, "always_store = %s ", on_off(always_store));
X fprintf(debugfile, "always_delete = %s ", on_off(always_del));
X fprintf(debugfile, "arrow_cursor = %s ", on_off(arrow_cursor));
X fprintf(debugfile, "names = %s\n", on_off(names_only));
X
X fprintf(debugfile, "warnings = %s ", on_off(warnings));
X fprintf(debugfile, "question_me = %s ", on_off(question_me));
X fprintf(debugfile, "keep_nil_files = %s\n\n",
X on_off(keep_empty_files));
X
X fprintf(debugfile, "local_signature = %s\n", local_signature);
X fprintf(debugfile, "remote_signature = %s\n", remote_signature);
X fprintf(debugfile, "sig_dashes = %s\n", on_off(sig_dashes));
X
X fprintf(debugfile, "Userlevel is set to %s user: %d\n",
X user_level == 0 ? "beginning" :
X user_level > 1 ? "expert" : "intermediate", user_level);
X
X fprintf(debugfile, "\nAnd we're skipping the following headers:\n\t");
X
X for (len=8, i=0; i < weedcount; i++) {
X if (weedlist[i][0] == '*') continue; /* skip '*end-of-defaults*' */
X if (len + strlen(weedlist[i]) > 80) {
X fprintf(debugfile, " \n\t");
X len = 8;
X }
X fprintf(debugfile, "%s ", weedlist[i]);
X len += strlen(weedlist[i]) + 3;
X }
X
X fprintf(debugfile, "\n\n");
X}
X
Xis_it_on(word)
Xchar *word;
X{
X /** Returns TRUE if the specified word is either 'ON', 'YES'
X or 'TRUE', and FALSE otherwise. We explicitly translate
X to lowercase here to ensure that we have the fastest
X routine possible - we really DON'T want to have this take
X a long time or our startup will be major pain each time.
X **/
X
X static char mybuffer[NLEN];
X register int i, j;
X
X for (i=0, j=0; word[i] != '\0'; i++)
X mybuffer[j++] = isupper(word[i]) ? tolower(word[i]) : word[i];
X mybuffer[j] = '\0';
X
X return( (strncmp(mybuffer, "on", 2) == 0) ||
X (strncmp(mybuffer, "yes", 3) == 0) ||
X (strncmp(mybuffer, "true", 4) == 0)
X );
X}
SHAR_EOF
echo "File src/read_rc.c is complete"
chmod 0444 src/read_rc.c || echo "restore of src/read_rc.c fails"
echo "x - extracting src/remail.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/remail.c &&
X
Xstatic char rcsid[] = "@(#)$Id: remail.c,v 4.1 90/04/28 22:43:50 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 4.1 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989, 1990 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@DSI.COM dsinc!elm
X *
X *******************************************************************************
X * $Log: remail.c,v $
X * Revision 4.1 90/04/28 22:43:50 syd
X * checkin of Elm 2.3 as of Release PL0
X *
X *
X ******************************************************************************/
X
X/** For those cases when you want to have a message continue along
X to another person in such a way as they end up receiving it with
X the return address the person YOU received the mail from (does
X this comment make any sense yet??)...
X
X**/
X
X#include "headers.h"
X#include <errno.h>
X
Xextern int errno;
X
Xchar *error_name(), *error_description();
X
Xint
Xremail()
X{
X /** remail a message... returns TRUE if new foot needed ... **/
X
X FILE *mailfd;
X char entered[VERY_LONG_STRING], expanded[VERY_LONG_STRING];
X char *filename, buffer[VERY_LONG_STRING], ch;
X extern char *tempnam();
X
X entered[0] = '\0';
X
X get_to(entered, expanded);
X if (strlen(entered) == 0)
X return(0);
X
X display_to(expanded);
X
X if((filename=tempnam(temp_dir, "snd.")) == NULL) {
X dprint(1, (debugfile, "couldn't make temp file nam! (remail)\n"));
X sprintf(buffer, "Sorry - couldn't make file temp file name.");
X set_error(buffer);
X return(1);
X }
X
X if ((mailfd = fopen(filename, "w")) == NULL) {
X dprint(1, (debugfile, "couldn't open temp file %s! (remail)\n",
X filename));
X dprint(1, (debugfile, "** %s - %s **\n", error_name(errno),
X error_description(errno)));
X sprintf(buffer, "Sorry - couldn't open file %s for writing (%s).",
X error_name(errno));
X set_error(buffer);
X return(1);
X }
X
X /** now let's copy the message into the newly opened
X buffer... **/
X
X chown (filename, userid, groupid);
X
X copy_message("", mailfd, FALSE, TRUE, FALSE, TRUE);
X
X fclose(mailfd);
X
X /** Got the messsage, now let's ensure the person really wants to
X remail it... **/
X
X ClearLine(LINES-1);
X ClearLine(LINES);
X PutLine1(LINES-1,0,
X "Are you sure you want to remail this message (y/n)? y%c",
X BACKSPACE);
X fflush(stdin);
X fflush(stdout);
X ch = ReadCh();
X if (tolower(ch) == 'n') { /* another day, another No... */
X Write_to_screen("No.", 0);
X set_error("Bounce of message cancelled.");
X (void) unlink(filename);
X return(1);
X }
X Write_to_screen("Yes.", 0);
X
X sprintf(buffer,"( (%s %s ; %s %s) & ) < %s",
X mailer, strip_parens(strip_commas(expanded)),
X remove_cmd, filename, filename);
X
X PutLine0(LINES,0,"Resending mail...");
X system_call(buffer, SH, FALSE, FALSE);
X set_error("Mail resent.");
X
X return(1);
X}
SHAR_EOF
chmod 0444 src/remail.c || echo "restore of src/remail.c fails"
echo "x - extracting src/reply.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/reply.c &&
X
Xstatic char rcsid[] = "@(#)$Id: reply.c,v 4.1 90/04/28 22:43:51 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 4.1 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989, 1990 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@DSI.COM dsinc!elm
X *
X *******************************************************************************
X * $Log: reply.c,v $
X * Revision 4.1 90/04/28 22:43:51 syd
X * checkin of Elm 2.3 as of Release PL0
X *
X *
X ******************************************************************************/
X
X/*** routine allows replying to the sender of the current message
X
X***/
X
X#include "headers.h"
X#include <errno.h>
X
X#ifndef BSD
X# include <sys/types.h>
X# ifndef VMS
X# include <sys/utsname.h>
X# endif
X#endif
X
X/** Note that this routine generates automatic header information
X for the subject and (obviously) to lines, but that these can
X be altered while in the editor composing the reply message!
X**/
X
Xchar *strip_parens(), *get_token();
X
Xextern int errno;
X
Xchar *error_name(), *strcat(), *strcpy();
X
Xint
Xreply()
X{
X /** Reply to the current message. Returns non-zero iff
X the screen has to be rewritten. **/
X
X char return_address[SLEN], subject[SLEN];
X int return_value, form_letter;
X
X form_letter = (headers[current-1]->status & FORM_LETTER);
X
X if (get_return(return_address, current-1)) {
X strcpy(subject, headers[current-1]->subject);
X if (form_letter)
X return_value = mail_filled_in_form(return_address, subject);
X else
X return_value = sendmsg(return_address, "", subject, TRUE, NO, TRUE);
X }
X else if (headers[current-1]->subject[0] != '\0') {
X if ((strncmp("Re:", headers[current-1]->subject, 3) == 0) ||
X (strncmp("RE:", headers[current-1]->subject, 3) == 0) ||
X (strncmp("re:", headers[current-1]->subject, 3) == 0))
X strcpy(subject, headers[current-1]->subject);
X else {
X strcpy(subject,"Re: ");
X strcat(subject,headers[current-1]->subject);
X }
X if (form_letter)
X return_value = mail_filled_in_form(return_address, subject);
X else
X return_value = sendmsg(return_address, "", subject, TRUE, NO, TRUE);
X }
X else
X if (form_letter)
X return_value = mail_filled_in_form(return_address,
X "Filled in Form");
X else
X return_value = sendmsg(return_address, "", "Re: your mail",
X TRUE, NO, TRUE);
X
X return(return_value);
X}
X
Xint
Xreply_to_everyone()
X{
X /** Reply to everyone who received the current message.
X This includes other people in the 'To:' line and people
X in the 'Cc:' line too. Returns non-zero iff the screen
X has to be rewritten. **/
X
X char return_address[SLEN], subject[SLEN];
X char full_address[VERY_LONG_STRING];
X int return_value;
X
X get_return(return_address, current-1);
X
X full_address[0] = '\0'; /* no copies yet */
X get_and_expand_everyone(return_address, full_address);
X
X if (headers[current-1]->subject[0] != '\0') {
X if ((strncmp("Re:", headers[current-1]->subject, 3) == 0) ||
X (strncmp("RE:", headers[current-1]->subject, 3) == 0) ||
X (strncmp("re:", headers[current-1]->subject, 3) == 0))
X strcpy(subject, headers[current-1]->subject);
X else {
X strcpy(subject,"Re: ");
X strcat(subject,headers[current-1]->subject);
X }
X return_value = sendmsg(return_address, full_address, subject,
X TRUE, NO, TRUE);
X }
X else
X return_value = sendmsg(return_address, full_address,
X "Re: your mail", TRUE, NO, TRUE);
X
X return(return_value);
X
X}
X
Xint
Xforward()
X{
X /** Forward the current message. What this actually does is
X to temporarily set forwarding to true, then call 'send' to
X get the address and route the mail. Modified to also set
X 'noheader' to FALSE also, so that the original headers
X of the message sent are included in the message body also.
X Return TRUE if the main part of the screen has been changed
X (useful for knowing whether a redraw is needed.
X **/
X
X char subject[SLEN], address[VERY_LONG_STRING];
X int results, edit_msg = FALSE;
X
X forwarding = TRUE;
X
X address[0] = '\0';
X
X if (headers[current-1]->status & FORM_LETTER)
X PutLine0(LINES-3,COLUMNS-40,"<No editing allowed.>");
X else {
X edit_msg = (want_to("Edit outgoing message? (y/n) ",'y') != 'n');
X }
X
X if (strlen(headers[current-1]->subject) > 0) {
X
X strcpy(subject, headers[current-1]->subject);
X
X /* this next strange compare is to see if the last few chars are
X already '(fwd)' before we tack another on */
X
X if (strlen(subject) < 6 || (strcmp((char *) subject+strlen(subject)-5,
X "(fwd)") != 0))
X strcat(subject, " (fwd)");
X
X results = sendmsg(address, "", subject, edit_msg,
X headers[current-1]->status & FORM_LETTER?
X PREFORMATTED : allow_forms, FALSE);
X }
X else
X results = sendmsg(address, "", "Forwarded mail...", edit_msg,
X headers[current-1]->status & FORM_LETTER?
X PREFORMATTED : allow_forms, FALSE);
X
X forwarding = FALSE;
X
X return(results);
X}
X
Xget_and_expand_everyone(return_address, full_address)
Xchar *return_address, *full_address;
X{
X /** Read the current message, extracting addresses from the 'To:'
X and 'Cc:' lines. As each address is taken, ensure that it
X isn't to the author of the message NOR to us. If neither,
X prepend with current return address and append to the
X 'full_address' string.
X **/
X
X char ret_address[SLEN], buf[SLEN], new_address[SLEN],
X address[SLEN], comment[SLEN];
X int in_message = 1, first_pass = 0, iindex, line_pending = 0;
X
X /** First off, get to the first line of the message desired **/
X
X if (fseek(mailfile, headers[current-1]->offset, 0) == -1) {
X dprint(1,(debugfile,"Error: seek %ld resulted in errno %s (%s)\n",
X headers[current-1]->offset, error_name(errno),
X "get_and_expand_everyone"));
X error2("ELM [seek] couldn't read %d bytes into file (%s).",
X headers[current-1]->offset, error_name(errno));
X return;
X }
X
X /** okay! Now we're there! **/
X
X /** let's fix the ret_address to reflect the return address of this
X message with '%s' instead of the persons login name... **/
X
X translate_return(return_address, ret_address);
X
X /** now let's parse the actual message! **/
X
X while (in_message) {
X if (! line_pending)
X in_message = (int) (fgets(buf, SLEN, mailfile) != NULL);
X line_pending = 0;
X if (first_word(buf, "From ") && first_pass++ != 0)
X in_message = FALSE;
X else if (first_word(buf, "To:") || first_word(buf, "Cc:") ||
X first_word(buf, "CC:") || first_word(buf, "cc:")) {
X do {
X no_ret(buf);
X
X /** we have a buffer with a list of addresses, each of either the
X form "address (name)" or "name <address>". Our mission, should
X we decide not to be too lazy, is to break it into the two parts.
X **/
X
X if (!whitespace(buf[0]))
X iindex = chloc(buf, ':')+1; /* skip header field */
X else
X iindex = 0; /* skip whitespace */
X
X while (break_down_tolist(buf, &iindex, address, comment)) {
X
X if (okay_address(address, return_address)) {
X sprintf(new_address, ret_address, address);
X optimize_and_add(new_address, full_address);
X }
X }
X
X in_message = (int) (fgets(buf, SLEN, mailfile) != NULL);
X
X if (in_message) dprint(2, (debugfile, "> %s", buf));
X
X } while (in_message && whitespace(buf[0]));
X line_pending++;
X }
X else if (strlen(buf) < 2) /* done with header */
X in_message = FALSE;
X }
X}
X
Xint
Xokay_address(address, return_address)
Xchar *address, *return_address;
X{
X /** This routine checks to ensure that the address we just got
X from the "To:" or "Cc:" line isn't us AND isn't the person
X who sent the message. Returns true iff neither is the case **/
X
X char our_address[SLEN];
X struct addr_rec *alternatives;
X
X if (in_list(address, return_address))
X return(FALSE);
X
X if(in_list(address, username))
X return(FALSE);
X
X sprintf(our_address, "%s!%s", hostname, username);
X if (in_list(address, our_address))
X return(FALSE);
X
X sprintf(our_address, "%s!%s", hostfullname, username);
X if (in_list(address, our_address))
X return(FALSE);
X
X sprintf(our_address, "%s@%s", username, hostname);
X if (in_list(address, our_address))
X return(FALSE);
X
X sprintf(our_address, "%s@%s", username, hostfullname);
X if (in_list(address, our_address))
X return(FALSE);
X
X alternatives = alternative_addresses;
X
X while (alternatives != NULL) {
X if (in_list(address, alternatives->address))
X return(FALSE);
X alternatives = alternatives->next;
X }
X
X return(TRUE);
X}
X
Xoptimize_and_add(new_address, full_address)
Xchar *new_address, *full_address;
X{
X /** This routine will add the new address to the list of addresses
X in the full address buffer IFF it doesn't already occur. It
X will also try to fix dumb hops if possible, specifically hops
X of the form ...a!b...!a... and hops of the form a@b@b etc
X **/
X
X register int len, host_count = 0, i;
X char hosts[MAX_HOPS][SLEN]; /* array of machine names */
X char *host, *addrptr;
X
X if (in_list(full_address, new_address))
X return(1); /* duplicate address */
X
X /** optimize **/
X /* break down into a list of machine names, checking as we go along */
X
X addrptr = (char *) new_address;
X
X while ((host = get_token(addrptr, "!", 1)) != NULL) {
X for (i = 0; i < host_count && ! equal(hosts[i], host); i++)
X ;
X
X if (i == host_count) {
X strcpy(hosts[host_count++], host);
X if (host_count == MAX_HOPS) {
X dprint(2, (debugfile,
X "Error: hit max_hops limit trying to build return address (%s)\n",
X "optimize_and_add"));
X error("Can't build return address. Hit MAX_HOPS limit!");
X return(1);
X }
X }
X else
X host_count = i + 1;
X addrptr = NULL;
X }
X
X /** fix the ARPA addresses, if needed **/
X
X if (chloc(hosts[host_count-1], '@') > -1)
X fix_arpa_address(hosts[host_count-1]);
X
X /** rebuild the address.. **/
X
X new_address[0] = '\0';
X
X for (i = 0; i < host_count; i++)
X sprintf(new_address, "%s%s%s", new_address,
X new_address[0] == '\0'? "" : "!",
X hosts[i]);
X
X if (full_address[0] == '\0')
X strcpy(full_address, new_address);
X else {
X len = strlen(full_address);
X full_address[len ] = ',';
X full_address[len+1] = ' ';
X full_address[len+2] = '\0';
X strcat(full_address, new_address);
X }
X
X return(0);
X}
X
Xget_return_name(address, name, trans_to_lowercase)
Xchar *address, *name;
Xint trans_to_lowercase;
X{
X /** Given the address (either a single address or a combined list
X of addresses) extract the login name of the first person on
X the list and return it as 'name'. Modified to stop at
X any non-alphanumeric character. **/
X
X /** An important note to remember is that it isn't vital that this
X always returns just the login name, but rather that it always
X returns the SAME name. If the persons' login happens to be,
X for example, joe.richards, then it's arguable if the name
X should be joe, or the full login. It's really immaterial, as
X indicated before, so long as we ALWAYS return the same name! **/
X
X /** Another note: modified to return the argument as all lowercase
X always, unless trans_to_lowercase is FALSE... **/
X
X char single_address[SLEN];
X register int i, loc, iindex = 0;
X
X dprint(6, (debugfile,"get_return_name called with (%s, <>, shift=%s)\n",
X address, onoff(trans_to_lowercase)));
X
X /* First step - copy address up to a comma, space, or EOLN */
X
X for (i=0; address[i] != ',' && ! whitespace(address[i]) &&
X address[i] != '\0'; i++)
X single_address[i] = address[i];
X single_address[i] = '\0';
X
X /* Now is it an ARPA address?? */
X
X if ((loc = chloc(single_address, '@')) != -1) { /* Yes */
X
X /* At this point the algorithm is to keep shifting our copy
X window left until we hit a '!'. The login name is then
X located between the '!' and the first metacharacter to
X it's right (ie '%', ':' or '@'). */
X
X for (i=loc; single_address[i] != '!' && i > -1; i--)
X if (single_address[i] == '%' ||
X single_address[i] == ':' ||
X single_address[i] == '@') loc = i-1;
X
X if (i < 0 || single_address[i] == '!') i++;
X
X for (iindex = 0; iindex < loc - i + 1; iindex++)
X if (trans_to_lowercase)
X name[iindex] = tolower(single_address[iindex+i]);
X else
X name[iindex] = single_address[iindex+i];
X name[iindex] = '\0';
X }
X else { /* easier - standard USENET address */
X
X /* This really is easier - we just cruise left from the end of
X the string until we hit either a '!' or the beginning of the
X line. No sweat. */
X
X loc = strlen(single_address)-1; /* last char */
X
X for (i = loc; single_address[i] != '!' && single_address[i] != '.'
X && i > -1; i--)
X if (trans_to_lowercase)
X name[iindex++] = tolower(single_address[i]);
X else
X name[iindex++] = single_address[i];
X name[iindex] = '\0';
X reverse(name);
X }
X}
X
Xint
Xbreak_down_tolist(buf, iindex, address, comment)
Xchar *buf, *address, *comment;
Xint *iindex;
X{
X /** This routine steps through "buf" and extracts a single address
X entry. This entry can be of any of the following forms;
X
X address (name)
X name <address>
X address
X
X Once it's extracted a single entry, it will then return it as
X two tokens, with 'name' (e.g. comment) surrounded by parens.
X Returns ZERO if done with the string...
X **/
X
X char buffer[LONG_STRING];
X register int i, loc = 0, hold_index, len;
X
X if (*iindex > strlen(buf)) return(FALSE);
X
X while (whitespace(buf[*iindex])) (*iindex)++;
X
X if (*iindex > strlen(buf)) return(FALSE);
X
X /** Now we're pointing at the first character of the token! **/
X
X hold_index = *iindex;
X
X while (buf[*iindex] != ',' && buf[*iindex] != '\0')
X buffer[loc++] = buf[(*iindex)++];
X
X (*iindex)++;
X buffer[loc] = '\0';
X
X while (whitespace(buffer[loc])) /* remove trailing whitespace */
X buffer[--loc] = '\0';
X
X if (strlen(buffer) == 0) return(FALSE);
X
X dprint(5, (debugfile, "\n* got \"%s\"\n", buffer));
X
X if (buffer[loc-1] == ')') { /* address (name) format */
X for (loc = 0, len = strlen(buffer);buffer[loc] != '(' && loc < len; loc++)
X /* get to the opening comment character... */ ;
X
X loc--; /* back up to just before the paren */
X while (whitespace(buffer[loc])) loc--; /* back up */
X
X /** get the address field... **/
X
X for (i=0; i <= loc; i++)
X address[i] = buffer[i];
X address[i] = '\0';
X
X /** now get the comment field, en toto! **/
X
X loc = 0;
X
X for (i = chloc(buffer, '('), len = strlen(buffer); i < len; i++)
X comment[loc++] = buffer[i];
X comment[loc] = '\0';
X }
X else if (buffer[loc-1] == '>') { /* name <address> format */
X dprint(7, (debugfile, "\tcomment <address>\n"));
X for (loc = 0, len = strlen(buffer);buffer[loc] != '<' && loc < len; loc++)
X /* get to the opening comment character... */ ;
X while (whitespace(buffer[loc])) loc--; /* back up */
X
X /** get the comment field... **/
X
X comment[0] = '(';
X for (i=1; i < loc; i++)
X comment[i] = buffer[i-1];
X comment[i++] = ')';
X comment[i] = '\0';
X
X /** now get the address field, en toto! **/
X
X loc = 0;
X
X for (i = chloc(buffer,'<') + 1, len = strlen(buffer); i < len - 1; i++)
X address[loc++] = buffer[i];
X
X address[loc] = '\0';
X }
X else {
X /** the next section is added so that all To: lines have commas
X in them accordingly **/
X
X for (i=0; buffer[i] != '\0'; i++)
X if (whitespace(buffer[i])) break;
X if (i < strlen(buffer)) { /* shouldn't be whitespace */
X buffer[i] = '\0';
X *iindex = hold_index + strlen(buffer) + 1;
X }
X strcpy(address, buffer);
X comment[0] = '\0';
X }
X
X dprint(5, (debugfile, "-- returning '%s' '%s'\n", address, comment));
X
X return(TRUE);
X}
SHAR_EOF
chmod 0444 src/reply.c || echo "restore of src/reply.c fails"
echo "x - extracting src/returnadd.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > src/returnadd.c &&
X
Xstatic char rcsid[] = "@(#)$Id: returnadd.c,v 4.1 90/04/28 22:43:54 syd Exp $";
X
X/*******************************************************************************
X * The Elm Mail System - $Revision: 4.1 $ $State: Exp $
X *
X * Copyright (c) 1986, 1987 Dave Taylor
X * Copyright (c) 1988, 1989, 1990 USENET Community Trust
X *******************************************************************************
X * Bug reports, patches, comments, suggestions should be sent to:
X *
X * Syd Weinstein, Elm Coordinator
X * elm@DSI.COM dsinc!elm
X *
X *******************************************************************************
X * $Log: returnadd.c,v $
X * Revision 4.1 90/04/28 22:43:54 syd
X * checkin of Elm 2.3 as of Release PL0
X *
X *
X ******************************************************************************/
X
X/** This set of routines is used to generate real return addresses
X and also return addresses suitable for inclusion in a users
X alias files (ie optimized based on the pathalias database).
X
X**/
X
X#include "headers.h"
X
X#include <errno.h>
X
X#include <sys/types.h>
X#include <sys/stat.h>
X
Xchar *shift_lower();
X
Xextern int errno;
X
Xchar *error_name(), *strcat(), *strcpy();
X
X#ifdef OPTIMIZE_RETURN
X
Xoptimize_return(address)
Xchar *address;
X{
X /** This routine tries to create an optimized address, that is,
X an address that has the minimal information needed to
X route a message to this person given the current path
X database...
X **/
X
X#ifndef INTERNET
X char bogus_internet[SLEN];
X
X sprintf(bogus_internet, "@%s", hostfullname);
X
X /** first off, let's see if we need to strip off the localhost
X address crap... **/
X
X /** if we have a uucp part (e.g.a!b) AND the bogus address...**/
X
X if (chloc(address,'!') != -1 && in_string(address, bogus_internet))
X address[strlen(address)-strlen(bogus_internet)] = '\0';
X#endif
X
X /** next step is to figure out what sort of address we have... **/
X
X if (chloc(address, '%') != -1)
X optimize_cmplx_arpa(address);
X else if (chloc(address, '@') != -1)
X optimize_arpa(address);
X else
X optimize_usenet(address);
X}
X
Xoptimize_cmplx_arpa(address)
Xchar *address;
X{
X /** Try to optimize a complex ARPA address. A Complex address is one
X that contains '%' (deferred '@'). For example:
X veeger!hpcnof!hplabs!joe%sytech@syte
X is a complex address (no kidding, right?). The algorithm for
X trying to resolve it is to move all the way to the right, then
X back up left until the first '!' then from there to the SECOND
X metacharacter on the right is the name@host address...(in this
X example, it would be "joe%sytech"). Check this in the routing
X table. If not present, keep backing out to the right until we
X find a host that is present, or we hit the '@' sign. Once we
X have a 'normal' ARPA address, hand it to optimize_arpa().
X **/
X
X char name[NLEN], buffer[SLEN], junk[SLEN];
X char host[NLEN], old_host[NLEN];
X register int i, loc, nloc = 0, hloc = 0, passes = 1;
X
X /** first off, get the name%host... **/
X
X for (loc = strlen(address)-1; address[loc] != '!' && loc > -1; loc--)
X ;
X
X while (address[loc] != '\0') {
X
X if (passes == 1) {
X loc++;
X
X while (address[loc] != '%' && address[loc] != '@')
X name[nloc++] = address[loc++];
X }
X else {
X for (i=0; old_host[i] != '\0'; i++)
X name[nloc++] = old_host[i];
X }
X
X loc++;
X
X while (address[loc] != '%' && address[loc] != '@')
X host[hloc++] = address[loc++];
X
X host[hloc] = name[nloc] = '\0';
X
X strcpy(old_host, host);
X
X sprintf(buffer, "%s@%s", name, shift_lower(host));
X
X if (expand_site(buffer, junk) == 0) {
X strcpy(address, buffer);
X return;
X }
X else if (address[loc] == '@') {
X optimize_arpa(address);
X return;
X }
X else
X name[nloc++] = '%'; /* for next pass through */
X
X }
X}
X
Xoptimize_arpa(address)
Xchar *address;
X{
X /** Get an arpa address and simplify it to the minimal
X route needed to get mail to this person... **/
X
X char name[NLEN], buffer[SLEN], junk[SLEN];
X char host[NLEN];
X register int loc, nloc = 0, hloc = 0, at_sign = 0;
X
X for (loc = strlen(address)-1; address[loc] != '!' && loc > -1; loc--) {
X if (address[loc] == '@')
X at_sign++; /* remember this spot! */
X else if (at_sign)
X name[nloc++] = address[loc];
X else
X host[hloc++] = address[loc];
X }
X
X name[nloc] = host[hloc] = '\0';
X
X reverse(name);
X reverse(host);
X
X sprintf(buffer,"%s@%s", name, shift_lower(host));
X
X if (expand_site(buffer, junk) == 0) {
X strcpy(address, buffer);
X return;
X }
X
X optimize_usenet(address); /* that didn't work... */
X}
X
Xoptimize_usenet(address)
Xchar *address;
X{
X /** optimize the return address IFF it's a standard usenet
X address...
X **/
X
X char name[NLEN], new_address[SLEN], buffer[SLEN], junk[SLEN];
X register int loc, nloc = 0, aloc = 0, passes = 1;
X
X for (loc = strlen(address)-1; address[loc] != '!' && loc > -1; loc--)
X name[nloc++] = address[loc];
X name[nloc] = '\0';
X
X reverse(name);
X
X new_address[0] = '\0';
X
X /* got name, now get machine until we can get outta here */
X
X while (loc > -1) {
X
X new_address[aloc++] = address[loc--]; /* the '!' char */
X
X while (address[loc] != '!' && loc > -1)
X new_address[aloc++] = address[loc--];
X
X new_address[aloc] = '\0';
X
X strcpy(buffer, new_address);
X reverse(buffer);
X
X if (expand_site(buffer, junk) == 0) {
X if (passes == 1 && chloc(name, '@') == -1) {
X buffer[strlen(buffer) - 1] = '\0'; /* remove '!' */
X sprintf(address, "%s@%s", name, buffer);
X }
X else
X sprintf(address, "%s%s", buffer, name);
X return; /* success! */
X }
X passes++;
X }
X
X return; /* nothing to do! */
X}
X
X#endif /* OPTIMIZE_RETURN */
X
Xint
Xget_return(buffer, msgnum)
Xchar *buffer;
Xint msgnum;
X{
X /** reads msgnum message again, building up the full return
X address including all machines that might have forwarded
X the message. Returns whether it is using the To line **/
X
X char buf[SLEN], name1[SLEN], name2[SLEN], lastname[SLEN];
X char hold_return[SLEN], alt_name2[SLEN], buf2[SLEN];
X int ok = 1, lines;
X int using_to = FALSE;
X
X /* now initialize all the char buffers [thanks Keith!] */
X
X buf[0] = name1[0] = name2[0] = lastname[0] = '\0';
X hold_return[0] = alt_name2[0] = buf2[0] = '\0';
X
X /** get to the first line of the message desired **/
X
X if(msgnum < 0 || msgnum >= message_count || message_count < 1) {
X dprint(1, (debugfile,
X "Error: %d not a valid message number message_count = %d (%s)",
X msgnum, message_count, "get_return"));
X error1("%d not a valid message number!");
X return(using_to);
X }
X
X if (fseek(mailfile, headers[msgnum]->offset, 0) == -1) {
X dprint(1, (debugfile,
X "Error: seek %ld bytes into file hit errno %s (%s)",
X headers[msgnum]->offset, error_name(errno),
X "get_return"));
X error2("Couldn't seek %d bytes into file (%s).",
X headers[msgnum]->offset, error_name(errno));
X return(using_to);
X }
X
X /** okay! Now we're there! **/
X
X lines = headers[msgnum]->lines;
SHAR_EOF
echo "End of part 20"
echo "File src/returnadd.c is continued in part 21"
echo "21" > s2_seq_.tmp
exit 0
