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 #include <h/utils.h>
  15
  16 #define NADDRS  100
  17
  18 #define WIDTH   78
  19
  20 #define FORMAT  "%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>"
  21
  22 #define AP_SWITCHES \
  23     X("form formatfile", 0, FORMSW) \
  24     X("format string", 5, FMTSW) \
  25     X("width columns", 0, WIDTHSW) \
  26     X("version", 0, VERSIONSW) \
  27     X("help", 0, HELPSW) \
  28
  29 #define X(sw, minchars, id) id,
  30 DEFINE_SWITCH_ENUM(AP);
  31 #undef X
  32
  33 #define X(sw, minchars, id) { sw, minchars, id },
  34 DEFINE_SWITCH_ARRAY(AP, switches);
  35 #undef X
  36
  37 static struct format *fmt;
  38
  39 static int dat[5];
  40
  41 /*
  42  * static prototypes
  43  */
  44 static int process (char *, int);
  45
  46
  47 int
  48 main (int argc, char **argv)
  49 {
  50     int addrp = 0;
  51     int width = -1, status = 0;
  52     char *cp, *form = NULL, *format = NULL, *nfs;
  53     char buf[BUFSIZ], **argp;
  54     char **arguments, *addrs[NADDRS];
  55
  56     if (nmh_init(argv[0], 1)) { return 1; }
  57
  58     mts_init (invo_name);
  59     arguments = getarguments (invo_name, argc, argv, 1);
  60     argp = arguments;
  61
  62     while ((cp = *argp++)) {
  63         if (*cp == '-') {
  64             switch (smatch (++cp, switches)) {
  65                 case AMBIGSW:
  66                     ambigsw (cp, switches);
  67                     done (1);
  68
  69                 case UNKWNSW:
  70                     adios (NULL, "-%s unknown", cp);
  71
  72                 case HELPSW:
  73                     snprintf (buf, sizeof(buf), "%s [switches] addrs ...",
  74                         invo_name);
  75                     print_help (buf, switches, 1);
  76                     done (0);
  77                 case VERSIONSW:
  78                     print_version (invo_name);
  79                     done (0);
  80
  81                 case FORMSW:
  82                     if (!(form = *argp++) || *form == '-')
  83                         adios (NULL, "missing argument to %s", argp[-2]);
  84                     format = NULL;
  85                     continue;
  86                 case FMTSW:
  87                     if (!(format = *argp++) || *format == '-')
  88                         adios (NULL, "missing argument to %s", argp[-2]);
  89                     form = NULL;
  90                     continue;
  91
  92                 case WIDTHSW:
  93                     if (!(cp = *argp++) || *cp == '-')
  94                         adios (NULL, "missing argument to %s", argp[-2]);
  95                     width = atoi (cp);
  96                     continue;
  97             }
  98         }
  99         if (addrp > NADDRS)
 100             adios (NULL, "more than %d addresses", NADDRS);
 101         else
 102             addrs[addrp++] = cp;
 103     }
 104     addrs[addrp] = NULL;
 105
 106     if (addrp == 0)
 107         adios (NULL, "usage: %s [switches] addrs ...", invo_name);
 108
 109     /* get new format string */
 110     nfs = new_fs (form, format, FORMAT);
 111
 112     if (width == -1) {
 113         if ((width = sc_width ()) < WIDTH / 2) {
 114             /* Default:  width of the terminal, but at least WIDTH/2. */
 115             width = WIDTH / 2;
 116         }
 117         width -= 2;
 118     } else if (width == 0) {
 119         /* Unlimited width.  */
 120         width = INT_MAX;
 121     }
 122     fmt_compile (nfs, &fmt, 1);
 123
 124     dat[0] = 0;
 125     dat[1] = 0;
 126     dat[2] = 0;
 127     dat[3] = width;
 128     dat[4] = 0;
 129
 130     for (addrp = 0; addrs[addrp]; addrp++)
 131         status += process (addrs[addrp], width);
 132
 133     fmt_free (fmt, 1);
 134     done (status);
 135     return 1;
 136 }
 137
 138 struct pqpair {
 139     char *pq_text;
 140     char *pq_error;
 141     struct pqpair *pq_next;
 142 };
 143
 144
 145 static int
 146 process (char *arg, int length)
 147 {
 148     int status = 0;
 149     register char *cp;
 150     char error[BUFSIZ];
 151     register struct comp *cptr;
 152     register struct pqpair *p, *q;
 153     struct pqpair pq;
 154     register struct mailname *mp;
 155
 156     (q = &pq)->pq_next = NULL;
 157     while ((cp = getname (arg))) {
 158         if ((p = (struct pqpair *) mh_xcalloc ((size_t) 1, sizeof(*p))) == NULL)
 159             adios (NULL, "unable to allocate pqpair memory");
 160         if ((mp = getm (cp, NULL, 0, error, sizeof(error))) == NULL) {
 161             p->pq_text = getcpy (cp);
 162             p->pq_error = getcpy (error);
 163             status++;
 164         }
 165         else {
 166             p->pq_text = getcpy (mp->m_text);
 167             mnfree (mp);
 168         }
 169         q = (q->pq_next = p);
 170     }
 171
 172     for (p = pq.pq_next; p; p = q) {
 173         charstring_t scanl =
 174             charstring_create (length < NMH_BUFSIZ ? length : NMH_BUFSIZ);
 175
 176         cptr = fmt_findcomp ("text");
 177         if (cptr) {
 178             if (cptr->c_text)
 179                 free(cptr->c_text);
 180             cptr->c_text = p->pq_text;
 181             p->pq_text = NULL;
 182         }
 183         cptr = fmt_findcomp ("error");
 184         if (cptr) {
 185             if (cptr->c_text)
 186                 free(cptr->c_text);
 187             cptr->c_text = p->pq_error;
 188             p->pq_error = NULL;
 189         }
 190
 191         fmt_scan (fmt, scanl, length, dat, NULL);
 192         fputs (charstring_buffer (scanl), stdout);
 193         charstring_free (scanl);
 194
 195         if (p->pq_text)
 196             free (p->pq_text);
 197         if (p->pq_error)
 198             free (p->pq_error);
 199         q = p->pq_next;
 200         free ((char *) p);
 201     }
 202
 203     return status;
 204 }