/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2018, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* getele.c: Read a telegram from a file or stdin and send it to a country
- *
+ *
* Known contributors to this file:
- *
+ * Ron Koenderink, 2005
+ * Markus Armbruster, 2005-2009
+ *
*/
-#include <ctype.h>
-#include "misc.h"
-#include "player.h"
-#include "tel.h"
+#include <config.h>
+
#include "prototypes.h"
+#include "tel.h"
-static int tilde_escape(s_char *s, s_char c);
+static int tilde_escape(char *s);
+/*
+ * Read a telegram for @recipient into @buf, in UTF-8.
+ * @buf must have space for MAXTELSIZE+1 characters.
+ * Return telegram length, or -1 on error.
+ */
int
-getele(s_char *nation, s_char *buf)
+getele(char *recipient, char *buf)
{
- register s_char *bp;
- register int len;
- register int c;
- s_char buffer[MAXTELSIZE + 2];
- s_char left[MAXTELSIZE + 2];
+ char *bp;
+ size_t len;
+ char buffer[MAXTELSIZE + 2]; /* UTF-8 */
+ char left[16];
- pr("Enter telegram for %s\n", nation);
- pr("undo last line with ~u, print with ~p, abort with ~q, end with ^D or .\n");
+ pr("Enter telegram for %s\n", recipient);
+ pr("undo last line with ~u, print with ~p, abort with ~q, end with .\n");
bp = buf;
- while (!player->aborted) {
+ *bp = 0;
+ for (;;) {
sprintf(left, "%4d left: ", (int)(buf + MAXTELSIZE - bp));
- buffer[0] = 0;
- if (prmptrd(left, buffer, MAXTELSIZE - 2) <= 0)
- break;
- if (tilde_escape(buffer, 'q'))
+ if (uprmptrd(left, buffer, sizeof(buffer) - 2) <= 0)
+ return -1;
+ switch (tilde_escape(buffer)) {
+ case 'q':
return -1;
- if (tilde_escape(buffer, 'u')) {
+ case 'u':
if (bp == buf) {
pr("No more lines to undo\n");
continue;
}
+ for (bp -= 2; bp >= buf && *bp != '\n'; --bp) ;
+ *++bp = 0;
pr("Last line deleted.\n");
- for (bp -= 2; bp > buf && *bp != '\n'; --bp) ;
- if (bp > buf)
- *(++bp) = 0;
- else
- bp = buf;
continue;
- }
- if (tilde_escape(buffer, 'p')) {
+ case 'p':
pr("This is what you have written so far:\n");
- pr("%s", buf);
+ uprnf(buf);
continue;
}
- if (buffer[0] == '.' && ((buffer[1] == 0)
- || (buffer[1] == '\n')
- || (buffer[1] == '\r')))
+ if (buffer[0] == '.' && buffer[1] == 0)
break;
+ if (buffer[0] == '>') /* forgery attempt? */
+ buffer[0] = '?'; /* foil it */
len = strlen(buffer);
+ if (CANT_HAPPEN(len > sizeof(buffer) - 2))
+ len = sizeof(buffer) - 2;
buffer[len++] = '\n';
buffer[len] = 0;
- if (len + (bp - buf) > MAXTELSIZE)
+ if (bp + len > buf + MAXTELSIZE)
pr("Too long. Try that last line again...\n");
else {
- if (buffer[0] == '>') /* forgery attempt? */
- buffer[0] = '?'; /* foil it */
- (void)strcpy(bp, buffer);
+ memcpy(bp, buffer, len + 1);
bp += len;
}
}
- if (player->aborted)
- return -1;
- len = bp - buf;
- buf[len] = 0;
- /* Get rid of non-ASCII and control characters. */
- for (bp = buf; 0 != (c = *bp); bp++) {
- if (isascii(c) && (isprint(c) || isspace(c)))
- continue;
- *bp = '?';
- }
- return len;
+ return bp - buf;
}
+/*
+ * If @s is a `tilde escape', return its code, else 0.
+ * A tilde escape is '~' followed by the code character.
+ */
static int
-tilde_escape(s_char *s, s_char c)
+tilde_escape(char *s)
{
- if (s[0] == '~' && s[1] == c &&
- ((s[2] == 0) || (s[2] == '\n') || (s[2] == '\r')))
- return 1;
- return 0;
+ return s[0] == '~' && s[2] == 0 ? s[1] : 0;
}