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. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * @(#)lprint.c 8.3 (Berkeley) 4/28/95
  37  * $FreeBSD: src/usr.bin/finger/lprint.c,v 1.10.2.4 2002/07/03 01:14:24 des Exp $
  38  * $DragonFly: src/usr.bin/finger/lprint.c,v 1.4 2004/09/03 21:13:23 dillon Exp $
  39  */
  40
  41 #include <sys/types.h>
  42 #include <sys/stat.h>
  43 #include <sys/time.h>
  44 #include <ctype.h>
  45 #include <db.h>
  46 #include <err.h>
  47 #include <fcntl.h>
  48 #include <langinfo.h>
  49 #include <paths.h>
  50 #include <pwd.h>
  51 #include <stdio.h>
  52 #include <string.h>
  53 #include <unistd.h>
  54 #include <utmp.h>
  55 #include "finger.h"
  56 #include "pathnames.h"
  57 #include "extern.h"
  58
  59 #define LINE_LEN        80
  60 #define TAB_LEN         8               /* 8 spaces between tabs */
  61
  62 static int      demi_print(char *, int);
  63 static void     lprint(PERSON *);
  64 static void     vputc(unsigned char);
  65
  66 void
  67 lflag_print(void)
  68 {
  69         extern int pplan;
  70         PERSON *pn;
  71         int sflag, r;
  72         PERSON *tmp;
  73         DBT data, key;
  74
  75         for (sflag = R_FIRST;; sflag = R_NEXT) {
  76                 r = (*db->seq)(db, &key, &data, sflag);
  77                 if (r == -1)
  78                         err(1, "db seq");
  79                 if (r == 1)
  80                         break;
  81                 memmove(&tmp, data.data, sizeof tmp);
  82                 pn = tmp;
  83                 if (sflag != R_FIRST)
  84                         putchar('\n');
  85                 lprint(pn);
  86                 if (!pplan) {
  87                         show_text(pn->dir,
  88                             _PATH_FORWARD, "Mail forwarded to");
  89                         show_text(pn->dir, _PATH_PROJECT, "Project");
  90                         if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
  91                                 (void)printf("No Plan.\n");
  92                         show_text(pn->dir,
  93                             _PATH_PUBKEY, "Public key");
  94                 }
  95         }
  96 }
  97
  98 static void
  99 lprint(PERSON *pn)
 100 {
 101         extern time_t now;
 102         struct tm *delta;
 103         WHERE *w;
 104         int cpr, len, maxlen;
 105         struct tm *tp;
 106         int oddfield;
 107         char t[80];
 108
 109         if (d_first < 0)
 110                 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
 111         /*
 112          * long format --
 113          *      login name
 114          *      real name
 115          *      home directory
 116          *      shell
 117          *      office, office phone, home phone if available
 118          *      mail status
 119          */
 120         printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
 121             pn->name, pn->realname, pn->dir);
 122         printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
 123
 124         if (gflag)
 125                 goto no_gecos;
 126         /*
 127          * try and print office, office phone, and home phone on one line;
 128          * if that fails, do line filling so it looks nice.
 129          */
 130 #define OFFICE_TAG              "Office"
 131 #define OFFICE_PHONE_TAG        "Office Phone"
 132         oddfield = 0;
 133         if (pn->office && pn->officephone &&
 134             strlen(pn->office) + strlen(pn->officephone) +
 135             sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
 136                 snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
 137                     OFFICE_TAG, pn->office, prphone(pn->officephone));
 138                 oddfield = demi_print(tbuf, oddfield);
 139         } else {
 140                 if (pn->office) {
 141                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 142                             OFFICE_TAG, pn->office);
 143                         oddfield = demi_print(tbuf, oddfield);
 144                 }
 145                 if (pn->officephone) {
 146                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 147                             OFFICE_PHONE_TAG, prphone(pn->officephone));
 148                         oddfield = demi_print(tbuf, oddfield);
 149                 }
 150         }
 151         if (pn->homephone) {
 152                 snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
 153                     prphone(pn->homephone));
 154                 oddfield = demi_print(tbuf, oddfield);
 155         }
 156         if (oddfield)
 157                 putchar('\n');
 158
 159 no_gecos:
 160         /*
 161          * long format con't:
 162          * if logged in
 163          *      terminal
 164          *      idle time
 165          *      if messages allowed
 166          *      where logged in from
 167          * if not logged in
 168          *      when last logged in
 169          */
 170         /* find out longest device name for this user for formatting */
 171         for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
 172                 if ((len = strlen(w->tty)) > maxlen)
 173                         maxlen = len;
 174         /* find rest of entries for user */
 175         for (w = pn->whead; w != NULL; w = w->next) {
 176                 if (w->info == LOGGEDIN) {
 177                         tp = localtime(&w->loginat);
 178                         strftime(t, sizeof(t),
 179                             d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
 180                             tp);
 181                         cpr = printf("On since %s on %s", t, w->tty);
 182                         /*
 183                          * idle time is tough; if have one, print a comma,
 184                          * then spaces to pad out the device name, then the
 185                          * idle time.  Follow with a comma if a remote login.
 186                          */
 187                         delta = gmtime(&w->idletime);
 188                         if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
 189                                 cpr += printf("%-*s idle ",
 190                                     maxlen - (int)strlen(w->tty) + 1, ",");
 191                                 if (delta->tm_yday > 0) {
 192                                         cpr += printf("%d day%s ",
 193                                            delta->tm_yday,
 194                                            delta->tm_yday == 1 ? "" : "s");
 195                                 }
 196                                 cpr += printf("%d:%02d",
 197                                     delta->tm_hour, delta->tm_min);
 198                                 if (*w->host) {
 199                                         putchar(',');
 200                                         ++cpr;
 201                                 }
 202                         }
 203                         if (!w->writable)
 204                                 cpr += printf(" (messages off)");
 205                 } else if (w->loginat == 0) {
 206                         cpr = printf("Never logged in.");
 207                 } else {
 208                         tp = localtime(&w->loginat);
 209                         if (now - w->loginat > 86400 * 365 / 2) {
 210                                 strftime(t, sizeof(t),
 211                                          d_first ? "%a %e %b %R %Y (%Z)" :
 212                                                    "%a %b %e %R %Y (%Z)",
 213                                          tp);
 214                         } else {
 215                                 strftime(t, sizeof(t),
 216                                          d_first ? "%a %e %b %R (%Z)" :
 217                                                    "%a %b %e %R (%Z)",
 218                                          tp);
 219                         }
 220                         cpr = printf("Last login %s on %s", t, w->tty);
 221                 }
 222                 if (*w->host) {
 223                         if (LINE_LEN < (cpr + 6 + strlen(w->host)))
 224                                 (void)printf("\n   ");
 225                         (void)printf(" from %s", w->host);
 226                 }
 227                 putchar('\n');
 228         }
 229         if (pn->mailrecv == -1)
 230                 printf("No Mail.\n");
 231         else if (pn->mailrecv > pn->mailread) {
 232                 tp = localtime(&pn->mailrecv);
 233                 strftime(t, sizeof(t),
 234                          d_first ? "%a %e %b %R %Y (%Z)" :
 235                                    "%a %b %e %R %Y (%Z)",
 236                          tp);
 237                 printf("New mail received %s\n", t);
 238                 tp = localtime(&pn->mailread);
 239                 strftime(t, sizeof(t),
 240                          d_first ? "%a %e %b %R %Y (%Z)" :
 241                                    "%a %b %e %R %Y (%Z)",
 242                          tp);
 243                 printf("     Unread since %s\n", t);
 244         } else {
 245                 tp = localtime(&pn->mailread);
 246                 strftime(t, sizeof(t),
 247                          d_first ? "%a %e %b %R %Y (%Z)" :
 248                                    "%a %b %e %R %Y (%Z)",
 249                          tp);
 250                 printf("Mail last read %s\n", t);
 251         }
 252 }
 253
 254 static int
 255 demi_print(char *str, int oddfield)
 256 {
 257         static int lenlast;
 258         int lenthis, maxlen;
 259
 260         lenthis = strlen(str);
 261         if (oddfield) {
 262                 /*
 263                  * We left off on an odd number of fields.  If we haven't
 264                  * crossed the midpoint of the screen, and we have room for
 265                  * the next field, print it on the same line; otherwise,
 266                  * print it on a new line.
 267                  *
 268                  * Note: we insist on having the right hand fields start
 269                  * no less than 5 tabs out.
 270                  */
 271                 maxlen = 5 * TAB_LEN;
 272                 if (maxlen < lenlast)
 273                         maxlen = lenlast;
 274                 if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
 275                     lenthis) <= LINE_LEN) {
 276                         while(lenlast < (4 * TAB_LEN)) {
 277                                 putchar('\t');
 278                                 lenlast += TAB_LEN;
 279                         }
 280                         printf("\t%s\n", str);  /* force one tab */
 281                 } else {
 282                         printf("\n%s", str);    /* go to next line */
 283                         oddfield = !oddfield;   /* this'll be undone below */
 284                 }
 285         } else
 286                 printf("%s", str);
 287         oddfield = !oddfield;                   /* toggle odd/even marker */
 288         lenlast = lenthis;
 289         return(oddfield);
 290 }
 291
 292 int
 293 show_text(const char *directory, const char *file_name, const char *header)
 294 {
 295         struct stat sb;
 296         FILE *fp;
 297         int ch, cnt;
 298         char *p, lastc;
 299         int fd, nr;
 300
 301         lastc = '\0';
 302
 303         (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
 304         if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
 305             sb.st_size == 0)
 306                 return(0);
 307
 308         /* If short enough, and no newlines, show it on a single line.*/
 309         if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
 310                 nr = read(fd, tbuf, sizeof(tbuf));
 311                 if (nr <= 0) {
 312                         (void)close(fd);
 313                         return(0);
 314                 }
 315                 for (p = tbuf, cnt = nr; cnt--; ++p)
 316                         if (*p == '\n')
 317                                 break;
 318                 if (cnt <= 1) {
 319                         if (*header != '\0')
 320                                 (void)printf("%s: ", header);
 321                         for (p = tbuf, cnt = nr; cnt--; ++p)
 322                                 if (*p != '\r')
 323                                         vputc(lastc = *p);
 324                         if (lastc != '\n')
 325                                 (void)putchar('\n');
 326                         (void)close(fd);
 327                         return(1);
 328                 }
 329                 else
 330                         (void)lseek(fd, 0L, SEEK_SET);
 331         }
 332         if ((fp = fdopen(fd, "r")) == NULL)
 333                 return(0);
 334         if (*header != '\0')
 335                 (void)printf("%s:\n", header);
 336         while ((ch = getc(fp)) != EOF)
 337                 if (ch != '\r')
 338                         vputc(lastc = ch);
 339         if (lastc != '\n')
 340                 (void)putchar('\n');
 341         (void)fclose(fp);
 342         return(1);
 343 }
 344
 345 static void
 346 vputc(unsigned char ch)
 347 {
 348         int meta;
 349
 350         if (!isprint(ch) && !isascii(ch)) {
 351                 putchar('M');
 352                 putchar('-');
 353                 ch = toascii(ch);
 354                 meta = 1;
 355         } else
 356                 meta = 0;
 357         if (eightflag || isprint(ch) ||
 358             (!meta && (ch == ' ' || ch == '\t' || ch == '\n'))) {
 359                 putchar(ch);
 360         } else {
 361                 putchar('^');
 362                 putchar(ch == '\177' ? '?' : ch | 0100);
 363         }
 364 }