usr.bin/finger/lprint.c

   1 /*
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * @(#)lprint.c 8.3 (Berkeley) 4/28/95
  33  * $FreeBSD: src/usr.bin/finger/lprint.c,v 1.10.2.4 2002/07/03 01:14:24 des Exp $
  34  * $DragonFly: src/usr.bin/finger/lprint.c,v 1.4 2004/09/03 19:13:23 dillon Exp $
  35  */
  36
  37 #include <sys/types.h>
  38 #include <sys/socket.h>
  39 #include <sys/stat.h>
  40 #include <sys/time.h>
  41 #include <ctype.h>
  42 #include <db.h>
  43 #include <err.h>
  44 #include <fcntl.h>
  45 #include <langinfo.h>
  46 #include <paths.h>
  47 #include <pwd.h>
  48 #include <stdio.h>
  49 #include <string.h>
  50 #include <unistd.h>
  51 #include <utmp.h>
  52 #include "finger.h"
  53 #include "pathnames.h"
  54 #include "extern.h"
  55
  56 #define LINE_LEN        80
  57 #define TAB_LEN         8               /* 8 spaces between tabs */
  58
  59 static int      demi_print(char *, int);
  60 static void     lprint(PERSON *);
  61 static void     vputc(unsigned char);
  62
  63 void
  64 lflag_print(void)
  65 {
  66         PERSON *pn;
  67         int sflag, r;
  68         PERSON *tmp;
  69         DBT data, key;
  70
  71         for (sflag = R_FIRST;; sflag = R_NEXT) {
  72                 r = (*db->seq)(db, &key, &data, sflag);
  73                 if (r == -1)
  74                         err(1, "db seq");
  75                 if (r == 1)
  76                         break;
  77                 memmove(&tmp, data.data, sizeof tmp);
  78                 pn = tmp;
  79                 if (sflag != R_FIRST)
  80                         putchar('\n');
  81                 lprint(pn);
  82                 if (!pplan) {
  83                         show_text(pn->dir,
  84                             _PATH_FORWARD, "Mail forwarded to");
  85                         show_text(pn->dir, _PATH_PROJECT, "Project");
  86                         if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
  87                                 (void)printf("No Plan.\n");
  88                         show_text(pn->dir,
  89                             _PATH_PUBKEY, "Public key");
  90                 }
  91         }
  92 }
  93
  94 static void
  95 lprint(PERSON *pn)
  96 {
  97         struct tm *delta;
  98         WHERE *w;
  99         int cpr, len, maxlen;
 100         struct tm *tp;
 101         int oddfield;
 102         char t[80];
 103
 104         if (d_first < 0)
 105                 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
 106         /*
 107          * long format --
 108          *      login name
 109          *      real name
 110          *      home directory
 111          *      shell
 112          *      office, office phone, home phone if available
 113          *      mail status
 114          */
 115         printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
 116             pn->name, pn->realname, pn->dir);
 117         printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
 118
 119         if (gflag)
 120                 goto no_gecos;
 121         /*
 122          * try and print office, office phone, and home phone on one line;
 123          * if that fails, do line filling so it looks nice.
 124          */
 125 #define OFFICE_TAG              "Office"
 126 #define OFFICE_PHONE_TAG        "Office Phone"
 127         oddfield = 0;
 128         if (pn->office && pn->officephone &&
 129             strlen(pn->office) + strlen(pn->officephone) +
 130             sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
 131                 snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
 132                     OFFICE_TAG, pn->office, prphone(pn->officephone));
 133                 oddfield = demi_print(tbuf, oddfield);
 134         } else {
 135                 if (pn->office) {
 136                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 137                             OFFICE_TAG, pn->office);
 138                         oddfield = demi_print(tbuf, oddfield);
 139                 }
 140                 if (pn->officephone) {
 141                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 142                             OFFICE_PHONE_TAG, prphone(pn->officephone));
 143                         oddfield = demi_print(tbuf, oddfield);
 144                 }
 145         }
 146         if (pn->homephone) {
 147                 snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
 148                     prphone(pn->homephone));
 149                 oddfield = demi_print(tbuf, oddfield);
 150         }
 151         if (oddfield)
 152                 putchar('\n');
 153
 154 no_gecos:
 155         /*
 156          * long format con't:
 157          * if logged in
 158          *      terminal
 159          *      idle time
 160          *      if messages allowed
 161          *      where logged in from
 162          * if not logged in
 163          *      when last logged in
 164          */
 165         /* find out longest device name for this user for formatting */
 166         for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
 167                 if ((len = strlen(w->tty)) > maxlen)
 168                         maxlen = len;
 169         /* find rest of entries for user */
 170         for (w = pn->whead; w != NULL; w = w->next) {
 171                 if (w->info == LOGGEDIN) {
 172                         tp = localtime(&w->loginat);
 173                         strftime(t, sizeof(t),
 174                             d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
 175                             tp);
 176                         cpr = printf("On since %s on %s", t, w->tty);
 177                         /*
 178                          * idle time is tough; if have one, print a comma,
 179                          * then spaces to pad out the device name, then the
 180                          * idle time.  Follow with a comma if a remote login.
 181                          */
 182                         delta = gmtime(&w->idletime);
 183                         if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
 184                                 cpr += printf("%-*s idle ",
 185                                     maxlen - (int)strlen(w->tty) + 1, ",");
 186                                 if (delta->tm_yday > 0) {
 187                                         cpr += printf("%d day%s ",
 188                                            delta->tm_yday,
 189                                            delta->tm_yday == 1 ? "" : "s");
 190                                 }
 191                                 cpr += printf("%d:%02d",
 192                                     delta->tm_hour, delta->tm_min);
 193                                 if (*w->host) {
 194                                         putchar(',');
 195                                         ++cpr;
 196                                 }
 197                         }
 198                         if (!w->writable)
 199                                 cpr += printf(" (messages off)");
 200                 } else if (w->loginat == 0) {
 201                         cpr = printf("Never logged in.");
 202                 } else {
 203                         tp = localtime(&w->loginat);
 204                         if (now - w->loginat > 86400 * 365 / 2) {
 205                                 strftime(t, sizeof(t),
 206                                          d_first ? "%a %e %b %R %Y (%Z)" :
 207                                                    "%a %b %e %R %Y (%Z)",
 208                                          tp);
 209                         } else {
 210                                 strftime(t, sizeof(t),
 211                                          d_first ? "%a %e %b %R (%Z)" :
 212                                                    "%a %b %e %R (%Z)",
 213                                          tp);
 214                         }
 215                         cpr = printf("Last login %s on %s", t, w->tty);
 216                 }
 217                 if (*w->host) {
 218                         if (LINE_LEN < (cpr + 6 + strlen(w->host)))
 219                                 (void)printf("\n   ");
 220                         (void)printf(" from %s", w->host);
 221                 }
 222                 putchar('\n');
 223         }
 224         if (pn->mailrecv == -1)
 225                 printf("No Mail.\n");
 226         else if (pn->mailrecv > pn->mailread) {
 227                 tp = localtime(&pn->mailrecv);
 228                 strftime(t, sizeof(t),
 229                          d_first ? "%a %e %b %R %Y (%Z)" :
 230                                    "%a %b %e %R %Y (%Z)",
 231                          tp);
 232                 printf("New mail received %s\n", t);
 233                 tp = localtime(&pn->mailread);
 234                 strftime(t, sizeof(t),
 235                          d_first ? "%a %e %b %R %Y (%Z)" :
 236                                    "%a %b %e %R %Y (%Z)",
 237                          tp);
 238                 printf("     Unread since %s\n", t);
 239         } else {
 240                 tp = localtime(&pn->mailread);
 241                 strftime(t, sizeof(t),
 242                          d_first ? "%a %e %b %R %Y (%Z)" :
 243                                    "%a %b %e %R %Y (%Z)",
 244                          tp);
 245                 printf("Mail last read %s\n", t);
 246         }
 247 }
 248
 249 static int
 250 demi_print(char *str, int oddfield)
 251 {
 252         static int lenlast;
 253         int lenthis, maxlen;
 254
 255         lenthis = strlen(str);
 256         if (oddfield) {
 257                 /*
 258                  * We left off on an odd number of fields.  If we haven't
 259                  * crossed the midpoint of the screen, and we have room for
 260                  * the next field, print it on the same line; otherwise,
 261                  * print it on a new line.
 262                  *
 263                  * Note: we insist on having the right hand fields start
 264                  * no less than 5 tabs out.
 265                  */
 266                 maxlen = 5 * TAB_LEN;
 267                 if (maxlen < lenlast)
 268                         maxlen = lenlast;
 269                 if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
 270                     lenthis) <= LINE_LEN) {
 271                         while(lenlast < (4 * TAB_LEN)) {
 272                                 putchar('\t');
 273                                 lenlast += TAB_LEN;
 274                         }
 275                         printf("\t%s\n", str);  /* force one tab */
 276                 } else {
 277                         printf("\n%s", str);    /* go to next line */
 278                         oddfield = !oddfield;   /* this'll be undone below */
 279                 }
 280         } else
 281                 printf("%s", str);
 282         oddfield = !oddfield;                   /* toggle odd/even marker */
 283         lenlast = lenthis;
 284         return(oddfield);
 285 }
 286
 287 int
 288 show_text(const char *directory, const char *file_name, const char *header)
 289 {
 290         struct stat sb;
 291         FILE *fp;
 292         int ch, cnt;
 293         char *p, lastc;
 294         int fd, nr;
 295
 296         lastc = '\0';
 297
 298         (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
 299         if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
 300             sb.st_size == 0)
 301                 return(0);
 302
 303         /* If short enough, and no newlines, show it on a single line.*/
 304         if ((uintptr_t)sb.st_size <= LINE_LEN - strlen(header) - 5) {
 305                 nr = read(fd, tbuf, sizeof(tbuf));
 306                 if (nr <= 0) {
 307                         (void)close(fd);
 308                         return(0);
 309                 }
 310                 for (p = tbuf, cnt = nr; cnt--; ++p)
 311                         if (*p == '\n')
 312                                 break;
 313                 if (cnt <= 1) {
 314                         if (*header != '\0')
 315                                 (void)printf("%s: ", header);
 316                         for (p = tbuf, cnt = nr; cnt--; ++p)
 317                                 if (*p != '\r')
 318                                         vputc(lastc = *p);
 319                         if (lastc != '\n')
 320                                 (void)putchar('\n');
 321                         (void)close(fd);
 322                         return(1);
 323                 }
 324                 else
 325                         (void)lseek(fd, 0L, SEEK_SET);
 326         }
 327         if ((fp = fdopen(fd, "r")) == NULL)
 328                 return(0);
 329         if (*header != '\0')
 330                 (void)printf("%s:\n", header);
 331         while ((ch = getc(fp)) != EOF)
 332                 if (ch != '\r')
 333                         vputc(lastc = ch);
 334         if (lastc != '\n')
 335                 (void)putchar('\n');
 336         (void)fclose(fp);
 337         return(1);
 338 }
 339
 340 static void
 341 vputc(unsigned char ch)
 342 {
 343         int meta;
 344
 345         if (!isprint(ch) && !isascii(ch)) {
 346                 putchar('M');
 347                 putchar('-');
 348                 ch = toascii(ch);
 349                 meta = 1;
 350         } else
 351                 meta = 0;
 352         if (eightflag || isprint(ch) ||
 353             (!meta && (ch == ' ' || ch == '\t' || ch == '\n'))) {
 354                 putchar(ch);
 355         } else {
 356                 putchar('^');
 357                 putchar(ch == '\177' ? '?' : ch | 0100);
 358         }
 359 }