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

   1
   2 /*
   3  * ap.c -- parse addresses 822-style
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/addrsbr.h>
  12 #include <h/fmt_scan.h>
  13 #include <h/mts.h>
  14
  15 #define NADDRS  100
  16
  17 #define WIDTH   78
  18
  19 #define FORMAT  "%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>"
  20
  21 #define AP_SWITCHES \
  22     X("form formatfile", 0, FORMSW) \
  23     X("format string", 5, FMTSW) \
  24     X("width columns", 0, WIDTHSW) \
  25     X("version", 0, VERSIONSW) \
  26     X("help", 0, HELPSW) \
  27
  28 #define X(sw, minchars, id) id,
  29 DEFINE_SWITCH_ENUM(AP);
  30 #undef X
  31
  32 #define X(sw, minchars, id) { sw, minchars, id },
  33 DEFINE_SWITCH_ARRAY(AP, switches);
  34 #undef X
  35
  36 static struct format *fmt;
  37
  38 static int dat[5];
  39
  40 /*
  41  * static prototypes
  42  */
  43 static int process (char *, int);
  44
  45
  46 int
  47 main (int argc, char **argv)
  48 {
  49     int addrp = 0;
  50     int width = -1, status = 0;
  51     char *cp, *form = NULL, *format = NULL, *nfs;
  52     char buf[BUFSIZ], **argp;
  53     char **arguments, *addrs[NADDRS];
  54
  55     if (nmh_init(argv[0], 1)) { return 1; }
  56
  57     mts_init (invo_name);
  58     arguments = getarguments (invo_name, argc, argv, 1);
  59     argp = arguments;
  60
  61     while ((cp = *argp++)) {
  62         if (*cp == '-') {
  63             switch (smatch (++cp, switches)) {
  64                 case AMBIGSW:
  65                     ambigsw (cp, switches);
  66                     done (1);
  67
  68                 case UNKWNSW:
  69                     adios (NULL, "-%s unknown", cp);
  70
  71                 case HELPSW:
  72                     snprintf (buf, sizeof(buf), "%s [switches] addrs ...",
  73                         invo_name);
  74                     print_help (buf, switches, 1);
  75                     done (0);
  76                 case VERSIONSW:
  77                     print_version (invo_name);
  78                     done (0);
  79
  80                 case FORMSW:
  81                     if (!(form = *argp++) || *form == '-')
  82                         adios (NULL, "missing argument to %s", argp[-2]);
  83                     format = NULL;
  84                     continue;
  85                 case FMTSW:
  86                     if (!(format = *argp++) || *format == '-')
  87                         adios (NULL, "missing argument to %s", argp[-2]);
  88                     form = NULL;
  89                     continue;
  90
  91                 case WIDTHSW:
  92                     if (!(cp = *argp++) || *cp == '-')
  93                         adios (NULL, "missing argument to %s", argp[-2]);
  94                     width = atoi (cp);
  95                     continue;
  96             }
  97         }
  98         if (addrp > NADDRS)
  99             adios (NULL, "more than %d addresses", NADDRS);
 100         else
 101             addrs[addrp++] = cp;
 102     }
 103     addrs[addrp] = NULL;
 104
 105     if (addrp == 0)
 106         adios (NULL, "usage: %s [switches] addrs ...", invo_name);
 107
 108     /* get new format string */
 109     nfs = new_fs (form, format, FORMAT);
 110
 111     if (width == -1) {
 112         if ((width = sc_width ()) < WIDTH / 2) {
 113             /* Default:  width of the terminal, but at least WIDTH/2. */
 114             width = WIDTH / 2;
 115         } else if (width == 0) {
 116             /* Unlimited width. */
 117             width = INT_MAX;
 118         }
 119         width -= 2;
 120     }
 121     fmt_compile (nfs, &fmt, 1);
 122
 123     dat[0] = 0;
 124     dat[1] = 0;
 125     dat[2] = 0;
 126     dat[3] = width;
 127     dat[4] = 0;
 128
 129     for (addrp = 0; addrs[addrp]; addrp++)
 130         status += process (addrs[addrp], width);
 131
 132     fmt_free (fmt, 1);
 133     done (status);
 134     return 1;
 135 }
 136
 137 struct pqpair {
 138     char *pq_text;
 139     char *pq_error;
 140     struct pqpair *pq_next;
 141 };
 142
 143
 144 static int
 145 process (char *arg, int length)
 146 {
 147     int status = 0;
 148     register char *cp;
 149     char error[BUFSIZ];
 150     register struct comp *cptr;
 151     register struct pqpair *p, *q;
 152     struct pqpair pq;
 153     register struct mailname *mp;
 154
 155     (q = &pq)->pq_next = NULL;
 156     while ((cp = getname (arg))) {
 157         if ((p = (struct pqpair *) calloc ((size_t) 1, sizeof(*p))) == NULL)
 158             adios (NULL, "unable to allocate pqpair memory");
 159         if ((mp = getm (cp, NULL, 0, error, sizeof(error))) == NULL) {
 160             p->pq_text = getcpy (cp);
 161             p->pq_error = getcpy (error);
 162             status++;
 163         }
 164         else {
 165             p->pq_text = getcpy (mp->m_text);
 166             mnfree (mp);
 167         }
 168         q = (q->pq_next = p);
 169     }
 170
 171     for (p = pq.pq_next; p; p = q) {
 172         charstring_t scanl = charstring_create (length);
 173
 174         cptr = fmt_findcomp ("text");
 175         if (cptr) {
 176             if (cptr->c_text)
 177                 free(cptr->c_text);
 178             cptr->c_text = p->pq_text;
 179             p->pq_text = NULL;
 180         }
 181         cptr = fmt_findcomp ("error");
 182         if (cptr) {
 183             if (cptr->c_text)
 184                 free(cptr->c_text);
 185             cptr->c_text = p->pq_error;
 186             p->pq_error = NULL;
 187         }
 188
 189         fmt_scan (fmt, scanl, length, dat, NULL);
 190         fputs (charstring_buffer (scanl), stdout);
 191         charstring_free (scanl);
 192
 193         if (p->pq_text)
 194             free (p->pq_text);
 195         if (p->pq_error)
 196             free (p->pq_error);
 197         q = p->pq_next;
 198         free ((char *) p);
 199     }
 200
 201     return status;
 202 }