diplodocus.org Git - nmh/blob - uip/ap.c

   1 /* ap.c -- parse addresses 822-style
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include <h/addrsbr.h>
  10 #include <h/fmt_scan.h>
  11 #include <h/mts.h>
  12 #include <h/utils.h>
  13
  14 #define NADDRS  100
  15
  16 #define WIDTH   78
  17
  18 #define FORMAT  "%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>"
  19
  20 #define AP_SWITCHES \
  21     X("form formatfile", 0, FORMSW) \
  22     X("format string", 5, FMTSW) \
  23     X("width columns", 0, WIDTHSW) \
  24     X("version", 0, VERSIONSW) \
  25     X("help", 0, HELPSW) \
  26
  27 #define X(sw, minchars, id) id,
  28 DEFINE_SWITCH_ENUM(AP);
  29 #undef X
  30
  31 #define X(sw, minchars, id) { sw, minchars, id },
  32 DEFINE_SWITCH_ARRAY(AP, switches);
  33 #undef X
  34
  35 static struct format *fmt;
  36
  37 static int dat[5];
  38
  39 /*
  40  * static prototypes
  41  */
  42 static int process (char *, int);
  43
  44
  45 int
  46 main (int argc, char **argv)
  47 {
  48     int addrp = 0;
  49     int width = -1, status = 0;
  50     char *cp, *form = NULL, *format = NULL, *nfs;
  51     char buf[BUFSIZ], **argp;
  52     char *addrs[NADDRS + 1]; /* Includes terminating NULL. */
  53
  54     if (nmh_init(argv[0], 2)) { return 1; }
  55
  56     mts_init ();
  57
  58     argp = getarguments (invo_name, argc, argv, 1);
  59     while ((cp = *argp++)) {
  60         if (*cp == '-') {
  61             switch (smatch (++cp, switches)) {
  62                 case AMBIGSW:
  63                     ambigsw (cp, switches);
  64                     done (1);
  65
  66                 case UNKWNSW:
  67                     adios (NULL, "-%s unknown", cp);
  68
  69                 case HELPSW:
  70                     snprintf (buf, sizeof(buf), "%s [switches] addrs ...",
  71                         invo_name);
  72                     print_help (buf, switches, 1);
  73                     done (0);
  74                 case VERSIONSW:
  75                     print_version (invo_name);
  76                     done (0);
  77
  78                 case FORMSW:
  79                     if (!(form = *argp++) || *form == '-')
  80                         adios (NULL, "missing argument to %s", argp[-2]);
  81                     format = NULL;
  82                     continue;
  83                 case FMTSW:
  84                     if (!(format = *argp++) || *format == '-')
  85                         adios (NULL, "missing argument to %s", argp[-2]);
  86                     form = NULL;
  87                     continue;
  88
  89                 case WIDTHSW:
  90                     if (!(cp = *argp++) || *cp == '-')
  91                         adios (NULL, "missing argument to %s", argp[-2]);
  92                     width = atoi (cp);
  93                     continue;
  94             }
  95         }
  96         if (addrp == NADDRS)
  97             adios (NULL, "more than %d addresses", NADDRS);
  98         addrs[addrp++] = cp;
  99     }
 100     addrs[addrp] = NULL;
 101
 102     if (addrp == 0)
 103         adios (NULL, "usage: %s [switches] addrs ...", invo_name);
 104
 105     /* get new format string */
 106     nfs = new_fs (form, format, FORMAT);
 107
 108     if (width == -1) {
 109         if ((width = sc_width ()) < WIDTH / 2) {
 110             /* Default:  width of the terminal, but at least WIDTH/2. */
 111             width = WIDTH / 2;
 112         }
 113         width -= 2;
 114     } else if (width == 0) {
 115         /* Unlimited width.  */
 116         width = INT_MAX;
 117     }
 118     fmt_compile (nfs, &fmt, 1);
 119
 120     dat[0] = 0;
 121     dat[1] = 0;
 122     dat[2] = 0;
 123     dat[3] = width;
 124     dat[4] = 0;
 125
 126     for (addrp = 0; addrs[addrp]; addrp++)
 127         status += process (addrs[addrp], width);
 128
 129     fmt_free (fmt, 1);
 130     done (status);
 131     return 1;
 132 }
 133
 134 struct pqpair {
 135     char *pq_text;
 136     char *pq_error;
 137     struct pqpair *pq_next;
 138 };
 139
 140
 141 static int
 142 process (char *arg, int length)
 143 {
 144     int status = 0;
 145     char *cp;
 146     char error[BUFSIZ];
 147     struct comp *cptr;
 148     struct pqpair *p, *q;
 149     struct pqpair pq;
 150     struct mailname *mp;
 151
 152     (q = &pq)->pq_next = NULL;
 153     while ((cp = getname (arg))) {
 154         NEW0(p);
 155         if ((mp = getm (cp, NULL, 0, error, sizeof(error))) == NULL) {
 156             p->pq_text = mh_xstrdup(cp);
 157             p->pq_error = mh_xstrdup(error);
 158             status++;
 159         }
 160         else {
 161             p->pq_text = getcpy (mp->m_text);
 162             mnfree (mp);
 163         }
 164         q = (q->pq_next = p);
 165     }
 166
 167     for (p = pq.pq_next; p; p = q) {
 168         charstring_t scanl =
 169             charstring_create (length < NMH_BUFSIZ ? length : NMH_BUFSIZ);
 170
 171         cptr = fmt_findcomp ("text");
 172         if (cptr) {
 173             mh_xfree(cptr->c_text);
 174             cptr->c_text = p->pq_text;
 175             p->pq_text = NULL;
 176         }
 177         cptr = fmt_findcomp ("error");
 178         if (cptr) {
 179             mh_xfree(cptr->c_text);
 180             cptr->c_text = p->pq_error;
 181             p->pq_error = NULL;
 182         }
 183
 184         fmt_scan (fmt, scanl, length, dat, NULL);
 185         fputs (charstring_buffer (scanl), stdout);
 186         charstring_free (scanl);
 187
 188         mh_xfree(p->pq_text);
 189         mh_xfree(p->pq_error);
 190         q = p->pq_next;
 191         free(p);
 192     }
 193
 194     return status;
 195 }