git.marmaro.de Git - mmh/blob - uip/comp.c

   1 /*
   2 ** comp.c -- compose a message
   3 **
   4 ** This code is Copyright (c) 2002, by the authors of nmh.  See the
   5 ** COPYRIGHT file in the root directory of the nmh distribution for
   6 ** complete copyright information.
   7 */
   8
   9 #include <h/mh.h>
  10 #include <h/utils.h>
  11 #include <fcntl.h>
  12 #include <unistd.h>
  13 #include <locale.h>
  14 #include <sysexits.h>
  15
  16 static struct swit switches[] = {
  17 #define EDITRSW  0
  18         { "editor editor", 0 },
  19 #define FORMSW  1
  20         { "form formfile", 0 },
  21 #define USESW  2
  22         { "use", 0 },
  23 #define NUSESW  3
  24         { "nouse", 2 },
  25 #define WHATSW  4
  26         { "whatnowproc program", 0 },
  27 #define VERSIONSW  5
  28         { "Version", 0 },
  29 #define HELPSW  6
  30         { "help", 0 },
  31         { NULL, 0 }
  32 };
  33
  34
  35 int
  36 main(int argc, char **argv)
  37 {
  38         int use = NOUSE;
  39         int in, out;
  40         char *cp, *cwd, *maildir;
  41         char *ed = NULL, *form = NULL;
  42         char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  43         char drft[BUFSIZ], **argp, **arguments;
  44         struct msgs *mp = NULL;
  45         char *fmtstr;
  46
  47         setlocale(LC_ALL, "");
  48         invo_name = mhbasename(argv[0]);
  49
  50         /* read user profile/context */
  51         context_read();
  52
  53         arguments = getarguments(invo_name, argc, argv, 1);
  54         argp = arguments;
  55
  56         while ((cp = *argp++)) {
  57                 if (*cp == '-') {
  58                         switch (smatch(++cp, switches)) {
  59                         case AMBIGSW:
  60                                 ambigsw(cp, switches);
  61                                 exit(EX_USAGE);
  62                         case UNKWNSW:
  63                                 adios(EX_USAGE, NULL, "-%s unknown", cp);
  64
  65                         case HELPSW:
  66                                 snprintf(buf, sizeof(buf), "%s [+folder] [msg] [switches]", invo_name);
  67                                 print_help(buf, switches, 1);
  68                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  69                         case VERSIONSW:
  70                                 print_version(invo_name);
  71                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  72
  73                         case EDITRSW:
  74                                 if (!(ed = *argp++) || *ed == '-') {
  75                                         adios(EX_USAGE, NULL, "missing argument to %s", argp[-2]);
  76                                 }
  77                                 continue;
  78
  79                         case WHATSW:
  80                                 if (!(whatnowproc = *argp++) || *whatnowproc == '-') {
  81                                         adios(EX_USAGE, NULL, "missing argument to %s", argp[-2]);
  82                                 }
  83                                 continue;
  84
  85                         case FORMSW:
  86                                 if (!(form = *argp++) || *form == '-') {
  87                                         adios(EX_USAGE, NULL, "missing argument to %s", argp[-2]);
  88                                 }
  89                                 continue;
  90
  91                         case USESW:
  92                                 use++;
  93                                 continue;
  94                         case NUSESW:
  95                                 use = NOUSE;
  96                                 continue;
  97                         }
  98                 }
  99                 if (*cp == '+' || *cp == '@') {
 100                         if (folder) {
 101                                 adios(EX_USAGE, NULL, "only one folder at a time!");
 102                         } else {
 103                                 folder = getcpy(expandfol(cp));
 104                         }
 105                 } else {
 106                         if (msg) {
 107                                 adios(EX_USAGE, NULL, "only one message at a time!");
 108                         } else {
 109                                 msg = cp;
 110                         }
 111                 }
 112         }
 113
 114         cwd = getcpy(pwd());
 115
 116         if (form && (folder || msg)) {
 117                 adios(EX_USAGE, NULL, "can't mix forms and folders/msgs");
 118         }
 119
 120         if (use && folder) {
 121                 adios(EX_USAGE, NULL, "can't mix -use and +folder");
 122         }
 123
 124         if (use) {
 125                 /* Don't copy; the draft shall get removed in the end. */
 126                 strncpy(drft, m_draft(msg ? msg : seq_cur), sizeof(drft));
 127
 128         } else if (folder || msg) {
 129                 /* Take a message as the "form" for the new message. */
 130                 if (!msg)
 131                         msg = seq_cur;
 132                 if (!folder)
 133                         folder = getcurfol();
 134                 maildir = toabsdir(folder);
 135                 if (chdir(maildir) == NOTOK) {
 136                         adios(EX_OSERR, maildir, "unable to change directory to");
 137                 }
 138                 /* read folder and create message structure */
 139                 if (!(mp = folder_read(folder))) {
 140                         adios(EX_IOERR, NULL, "unable to read folder %s", folder);
 141                 }
 142                 /* check for empty folder */
 143                 if (mp->nummsg == 0) {
 144                         adios(EX_DATAERR, NULL, "no messages in %s", folder);
 145                 }
 146                 /* parse the message range/sequence/name and set SELECTED */
 147                 if (!m_convert(mp, msg)) {
 148                         exit(EX_SOFTWARE);
 149                 }
 150                 seq_setprev(mp);  /* set the previous-sequence */
 151                 if (mp->numsel > 1) {
 152                         adios(EX_USAGE, NULL, "only one message at a time!");
 153                 }
 154                 if ((in = open(form = getcpy(m_name(mp->lowsel)),
 155                                 O_RDONLY)) == NOTOK) {
 156                         adios(EX_IOERR, form, "unable to open message");
 157                 }
 158
 159                 strncpy(drft, m_draft(seq_beyond), sizeof(drft));
 160                 if ((out = creat(drft, m_gmprot())) == NOTOK) {
 161                         adios(EX_CANTCREAT, drft, "unable to create");
 162                 }
 163                 cpydata(in, out, form, drft);
 164                 close(in);
 165                 close(out);
 166
 167         } else {
 168                 fmtstr = new_fs(form, components);
 169                 strncpy(drft, m_draft(seq_beyond), sizeof(drft));
 170                 if ((out = creat(drft, m_gmprot())) == NOTOK) {
 171                 adios(EX_CANTCREAT, drft, "unable to create");
 172                 }
 173                 if (write(out, fmtstr, strlen(fmtstr)) != (int)strlen(fmtstr)) {
 174                         adios(EX_IOERR, drft, "error writing");
 175                 }
 176                 close(out);
 177         }
 178
 179         context_save();
 180         what_now(ed, use, drft, NULL, 0, NULLMP, NULL, cwd);
 181         return EX_OSERR;
 182 }