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

   1 /*
   2 ** mhmail.c -- simple mail program
   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/signals.h>
  11 #include <h/utils.h>
  12 #include <signal.h>
  13 #include <fcntl.h>
  14
  15
  16 static struct swit switches[] = {
  17 #define BODYSW  0
  18         { "bodytext text", 0 },
  19 #define CCSW  1
  20         { "cc addrs ...", 0 },
  21 #define FROMSW  2
  22         { "from addr", 0 },
  23 #define SUBJSW  3
  24         { "subject text", 0 },
  25 #define VERSIONSW  4
  26         { "Version", 0 },
  27 #define HELPSW  5
  28         { "help", 0 },
  29         { NULL, 0 }
  30 };
  31
  32 static char tmpfil[BUFSIZ];
  33
  34 /*
  35 ** static prototypes
  36 */
  37 static void intrser(int);
  38
  39
  40 int
  41 main(int argc, char **argv)
  42 {
  43         int status, iscc = 0, nvec;
  44         char *cp, *tolist = NULL, *cclist = NULL, *subject = NULL;
  45         char *from = NULL, *body = NULL, **argp, **arguments;
  46         char *vec[5], buf[BUFSIZ];
  47         FILE *out;
  48         char *tfile = NULL;
  49
  50         setlocale(LC_ALL, "");
  51         invo_name = mhbasename(argv[0]);
  52
  53         /* Without arguments, exit. */
  54         if (argc == 1) {
  55                 adios(NULL, "no interactive mail shell. Use inc/scan/show instead.");
  56         }
  57
  58         context_read();
  59
  60         arguments = getarguments(invo_name, argc, argv, 0);
  61         argp = arguments;
  62
  63         while ((cp = *argp++)) {
  64                 if (*cp == '-') {
  65                         switch (smatch(++cp, switches)) {
  66                         case AMBIGSW:
  67                                 ambigsw(cp, switches);
  68                                 done(1);
  69                         case UNKWNSW:
  70                                 adios(NULL, "-%s unknown", cp);
  71
  72                         case HELPSW:
  73                                 snprintf(buf, sizeof(buf),
  74                                                 "%s addrs... [switches]",
  75                                                 invo_name);
  76                                 print_help(buf, switches, 0);
  77                                 done(1);
  78                         case VERSIONSW:
  79                                 print_version(invo_name);
  80                                 done(1);
  81
  82                         case FROMSW:
  83                                 if (!(from = *argp++) || *from == '-')
  84                                         adios(NULL, "missing argument to %s",
  85                                                         argp[-2]);
  86                                 continue;
  87
  88                         case BODYSW:
  89                                 if (!(body = *argp++) || *body == '-')
  90                                         adios(NULL, "missing argument to %s",
  91                                                         argp[-2]);
  92                                 continue;
  93
  94                         case CCSW:
  95                                 iscc++;
  96                                 continue;
  97
  98                         case SUBJSW:
  99                                 if (!(subject = *argp++) || *subject == '-')
 100                                         adios(NULL, "missing argument to %s",
 101                                                         argp[-2]);
 102                                 continue;
 103                         }
 104                 }
 105                 if (iscc)
 106                         cclist = cclist ? add(cp, add(", ", cclist)) :
 107                                         getcpy(cp);
 108                 else
 109                         tolist = tolist ? add(cp, add(", ", tolist)) :
 110                                         getcpy(cp);
 111         }
 112
 113         if (tolist == NULL)
 114                 adios(NULL, "usage: %s addrs ... [switches]", invo_name);
 115
 116         tfile = m_mktemp2("/tmp/", invo_name, NULL, &out);
 117         if (tfile == NULL)
 118                 adios("mhmail", "unable to create temporary file");
 119         chmod(tfile, 0600);
 120         strncpy(tmpfil, tfile, sizeof(tmpfil));
 121
 122         SIGNAL2(SIGINT, intrser);
 123
 124         fprintf(out, "To: %s\n", tolist);
 125         if (cclist)
 126                 fprintf(out, "Cc: %s\n", cclist);
 127         if (subject)
 128                 fprintf(out, "Subject: %s\n", subject);
 129         if (from)
 130                 fprintf(out, "From: %s\n", from);
 131         fputs("\n", out);
 132
 133         if (body) {
 134                 fprintf(out, "%s", body);
 135                 if (*body && body[strlen(body) - 1] != '\n')
 136                         fputs("\n", out);
 137         } else {
 138                 int empty = 1;
 139
 140                 while (fgets(buf, sizeof buf, stdin)) {
 141                         if (buf[0]=='.' && buf[1]=='\n') {
 142                                 /* A period alone on a line means EOF. */
 143                                 break;
 144                         }
 145                         empty = 0;
 146                         if (fputs(buf, out) == EOF) {
 147                                 adios(tmpfil, "error writing");
 148                         }
 149                 }
 150                 if (empty) {
 151                         unlink(tmpfil);
 152                         adios(NULL, "not sending message with empty body");
 153                 }
 154         }
 155         fclose(out);
 156
 157         nvec = 0;
 158         vec[nvec++] = "spost";
 159         vec[nvec++] = tmpfil;
 160         vec[nvec] = NULL;
 161
 162         if ((status = execprog(*vec, vec))) {
 163                 /* spost failed, save draft as dead.letter */
 164                 int in, out;
 165
 166                 in = open(tmpfil, O_RDONLY);
 167                 out = creat("dead.letter", 0600);
 168                 if (in == -1 || out == -1) {
 169                         fprintf(stderr, "Letter left at %s.\n",
 170                                         tmpfil);
 171                         done(status ? 1 : 0);
 172                 }
 173                 cpydata(in, out, tmpfil, "dead.letter");
 174                 close(in);
 175                 close(out);
 176                 fprintf(stderr, "Letter saved in dead.letter\n");
 177         }
 178         unlink(tmpfil);
 179         done(status ? 1 : 0);
 180         return 0;  /* dead code to satisfy the compiler */
 181 }
 182
 183
 184 static void
 185 intrser(int i)
 186 {
 187         unlink(tmpfil);
 188         done(i != 0 ? 1 : 0);
 189 }
 190