source: trunk/athena/bin/discuss/client/new_trans.c @ 22404

/*
 *
 *    Copyright (C) 1989 by the Massachusetts Institute of Technology
 *    Developed by the MIT Student Information Processing Board (SIPB).
 *    For copying information, see the file mit-copyright.h in this release.
 *
 */
/*
 *      $Id: new_trans.c,v 1.30 2006-03-10 07:11:31 ghudson Exp $
 *
 *      New-transaction routine for DISCUSS.  (Request 'talk'.)
 *
 */


#ifndef lint
static char rcsid_discuss_c[] =
     "$Id: new_trans.c,v 1.30 2006-03-10 07:11:31 ghudson Exp $";
#endif /* lint */

#include <stdio.h>
#include <sys/file.h>
#include <signal.h>
#include <string.h>
#include <sys/wait.h>
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include <ss/ss.h>
#include <discuss/discuss.h>
#include "config.h"
#include "globals.h"

#ifdef  lint
#define USE(var)        var=var;
#else   /* lint */
#define USE(var)        ;
#endif  /* lint */

extern tfile    unix_tfile();
extern void flag_interrupts(), dont_flag_interrupts();

new_trans(argc, argv)
     int argc;
     char **argv;
{
     int fd, txn_no;
     tfile tf;
     char *subject = &buffer[0];
     char *whoami = argv[0];
     char *mtg = NULL;
     char *myname = NULL;
     int code;
     char *editor = NULL;

     USE(sci_idx);

     while (++argv, --argc) {
          if (!strcmp (*argv, "-meeting") || !strcmp (*argv, "-mtg")) {
               if (argc==1) {
                    ss_perror(sci_idx, 0, "No arguments supplied.");
                    return;
               } else {
                    --argc;
                    mtg = *(++argv);
               }
          } else if (!strcmp (*argv, "-editor") || !strcmp(*argv, "-ed")) {
               if (argc==1) {
                    ss_perror(sci_idx, 0, "No editor name supplied.");
                    return;
               } else {
                    --argc;
                    editor = *(++argv);
               }
          } else if (!strcmp(*argv, "-no_editor") || !strcmp(*argv, "-ned")) {
               editor = "";
          } else {
               (void) fprintf(stderr,
           "Usage:  %s [ -editor cmd ] [ -no_editor ] [ -mtg meeting_name ]\n",
                              whoami);
               return;
          }
     }

     flag_interrupts();

     if (mtg) {
          (void) sprintf(buffer, "goto %s", mtg);
          code = ss_execute_line(sci_idx, buffer);
          if (code != 0) {
               ss_perror(sci_idx, code, buffer);
               goto punt;
          }
          if (interrupt) goto punt;
     }

     if (!dsc_public.attending) {
          ss_perror(sci_idx, DISC_NO_MTG, "");
          goto punt;
     }

     if(!acl_is_subset("w", dsc_public.m_info.access_modes)) {
          ss_perror(sci_idx, 0,
                    "You do not have permission to create transactions in this meeting.");
          goto punt;
     }

     dsc_whoami(&dsc_public.nb, &myname, &code);
     if (interrupt) goto punt;
     if (code != 0) {
          ss_perror(sci_idx, code, "while checking for anonymity");
     } else {
          if (strncmp(myname, "???", 3) == 0) {
                printf("Entry will be anonymous.\n");
          }
     }
     free(myname);
     myname = NULL;

     (void) printf("Subject: ");
     if (fgets(subject,BUFSIZ,stdin) == (char *)NULL) {
          clearerr(stdin);
          if (interrupt) goto punt;
          ss_perror(sci_idx, errno, "Error reading subject.");
          goto punt;
     }
     if (interrupt) goto punt;
     subject[strlen(subject)-1] = '\0';         /* Get rid of NL */

     (void) unlink(temp_file);
     if ((code = edit(temp_file, editor)) != 0) {
          ss_perror(sci_idx, code,
                    "Error during edit; transaction not entered.");
          goto punt;
     }
     if (interrupt) goto punt;
     fd = open(temp_file, O_RDONLY, 0);
     if (fd < 0) {
          ss_perror(sci_idx, errno, "Can't read transaction");
          goto punt;
     }
     tf = unix_tfile(fd);
     dsc_add_trn(&dsc_public.nb, tf, subject, 0,
                 &txn_no, &code);
     if (code != 0) {
          ss_perror(sci_idx, code, "while adding transaction");
          close(fd);
          goto punt;
     }

     close(fd);
     (void) unlink(temp_file);

     (void) printf("Transaction [%04d] entered in the %s meeting.\n",
                    txn_no, dsc_public.mtg_name);

     if (dsc_public.current == 0)
         dsc_public.current = txn_no;

     /* and now a pragmatic definition of 'seen':  If you are up-to-date
        in a meeting, then you see transactions you enter. */
     if (dsc_public.highest_seen == txn_no -1) {
          dsc_public.highest_seen = txn_no;
     }

     /* update last */
     dsc_public.m_info.last = txn_no;
     dsc_public.m_info.highest = txn_no;
punt:
     dont_flag_interrupts();
}