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-
- static char rcsid[] = "@(#)$Id: mkhdrs.c,v 4.1 90/04/28 22:43:32 syd Exp $";
-
- /*******************************************************************************
- * The Elm Mail System - $Revision: 4.1 $ $State: Exp $
- *
- * Copyright (c) 1986, 1987 Dave Taylor
- * Copyright (c) 1988, 1989, 1990 USENET Community Trust
- *******************************************************************************
- * Bug reports, patches, comments, suggestions should be sent to:
- *
- * Syd Weinstein, Elm Coordinator
- * elm@DSI.COM dsinc!elm
- *
- *******************************************************************************
- * $Log: mkhdrs.c,v $
- * Revision 4.1 90/04/28 22:43:32 syd
- * checkin of Elm 2.3 as of Release PL0
- *
- *
- ******************************************************************************/
-
- /** This contains all the header generating routines for the ELM
- program.
-
- **/
-
- #include "headers.h"
-
- extern char in_reply_to[SLEN];
-
- char *strcpy();
- unsigned long sleep();
-
- generate_reply_to(msg)
- int msg;
- {
- /** Generate an 'in-reply-to' message... **/
- char buffer[SLEN];
-
-
- if (msg == -1) /* not a reply! */
- in_reply_to[0] = '\0';
- else {
- if (chloc(headers[msg]->from, '!') != -1)
- tail_of(headers[msg]->from, buffer, 0);
- else
- strcpy(buffer, headers[msg]->from);
- sprintf(in_reply_to, "%s; from \"%s\" at %s %s, %s %s",
- headers[msg]->messageid[0] == '\0'? "<no.id>":
- headers[msg]->messageid,
- buffer,
- headers[msg]->month,
- headers[msg]->day,
- headers[msg]->year,
- headers[msg]->time);
- }
- }
-
- add_mailheaders(filedesc)
- FILE *filedesc;
- {
- /** Add the users .mailheaders file if available. Allow backquoting
- in the file, too, for fortunes, etc...*shudder*
- **/
-
- FILE *fd;
- char filename[SLEN], buffer[SLEN];
-
- sprintf(filename, "%s/%s", home, mailheaders);
-
- if ((fd = fopen(filename, "r")) != NULL) {
- while (fgets(buffer, SLEN, fd) != NULL)
- if (strlen(buffer) < 2) {
- dprint(2, (debugfile,
- "Strlen of line from .elmheaders is < 2 (write_header_info)"));
- error1("Warning: blank line in %s ignored!", filename);
- sleep(2);
- }
- else if (occurances_of(BACKQUOTE, buffer) >= 2)
- expand_backquote(buffer, filedesc);
- else
- fprintf(filedesc, "%s", buffer);
-
- fclose(fd);
- }
- }
-
- expand_backquote(buffer, filedesc)
- char *buffer;
- FILE *filedesc;
- {
- /** This routine is called with a line of the form:
- Fieldname: `command`
- and is expanded accordingly..
- **/
-
- FILE *fd;
- char command[SLEN], command_buffer[SLEN], fname[SLEN],
- prefix[SLEN];
- register int i, j = 0;
-
- for (i=0; buffer[i] != BACKQUOTE; i++)
- prefix[j++] = buffer[i];
- prefix[j] = '\0';
-
- j = 0;
-
- for (i=chloc(buffer, BACKQUOTE)+1; buffer[i] != BACKQUOTE;i++)
- command[j++] = buffer[i];
- command[j] = '\0';
-
- sprintf(fname,"%s%d%s", temp_dir, getpid(), temp_print);
-
- sprintf(command_buffer, "%s > %s", command, fname);
-
- system_call(command_buffer, SH, FALSE, FALSE);
-
- if ((fd = fopen(fname, "r")) == NULL) {
- error1("Backquoted command \"%s\" in elmheaders failed.", command);
- return;
- }
-
- /* If we get a line that is less than 80 - length of prefix then we
- can toss it on the same line, otherwise, simply prepend each line
- *starting with this line* with a leading tab and cruise along */
-
- if (fgets(command_buffer, SLEN, fd) == NULL)
- fprintf(filedesc, prefix);
- else {
- if (strlen(command_buffer) + strlen(prefix) < 80)
- fprintf(filedesc, "%s%s", prefix, command_buffer);
- else
- fprintf(filedesc, "%s\n\t%s", prefix, command_buffer);
-
- while (fgets(command_buffer, SLEN, fd) != NULL)
- fprintf(filedesc, "\t%s", command_buffer);
-
- fclose(fd);
- }
-
- unlink(fname); /* don't leave the temp file laying around! */
- }
-