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  */
  35
  36 #include <sys/types.h>
  37 #include <sys/socket.h>
  38 #include <sys/stat.h>
  39 #include <sys/time.h>
  40 #include <ctype.h>
  41 #include <db.h>
  42 #include <err.h>
  43 #include <fcntl.h>
  44 #include <langinfo.h>
  45 #include <paths.h>
  46 #include <pwd.h>
  47 #include <stdio.h>
  48 #include <string.h>
  49 #include <unistd.h>
  50 #include "finger.h"
  51 #include "pathnames.h"
  52 #include "extern.h"
  53
  54 #define LINE_LEN        80
  55 #define TAB_LEN         8               /* 8 spaces between tabs */
  56
  57 static int      demi_print(char *, int);
  58 static void     lprint(PERSON *);
  59 static void     vputc(unsigned char);
  60
  61 void
  62 lflag_print(void)
  63 {
  64         PERSON *pn;
  65         int sflag, r;
  66         PERSON *tmp;
  67         DBT data, key;
  68
  69         for (sflag = R_FIRST;; sflag = R_NEXT) {
  70                 r = (*db->seq)(db, &key, &data, sflag);
  71                 if (r == -1)
  72                         err(1, "db seq");
  73                 if (r == 1)
  74                         break;
  75                 memmove(&tmp, data.data, sizeof tmp);
  76                 pn = tmp;
  77                 if (sflag != R_FIRST)
  78                         putchar('\n');
  79                 lprint(pn);
  80                 if (!pplan) {
  81                         show_text(pn->dir,
  82                             _PATH_FORWARD, "Mail forwarded to");
  83                         show_text(pn->dir, _PATH_PROJECT, "Project");
  84                         if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
  85                                 (void)printf("No Plan.\n");
  86                         show_text(pn->dir,
  87                             _PATH_PUBKEY, "Public key");
  88                 }
  89         }
  90 }
  91
  92 static void
  93 lprint(PERSON *pn)
  94 {
  95         struct tm *delta;
  96         WHERE *w;
  97         int cpr, len, maxlen;
  98         struct tm *tp;
  99         int oddfield;
 100         char t[80];
 101
 102         if (d_first < 0)
 103                 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
 104         /*
 105          * long format --
 106          *      login name
 107          *      real name
 108          *      home directory
 109          *      shell
 110          *      office, office phone, home phone if available
 111          *      mail status
 112          */
 113         printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
 114             pn->name, pn->realname, pn->dir);
 115         printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
 116
 117         if (gflag)
 118                 goto no_gecos;
 119         /*
 120          * try and print office, office phone, and home phone on one line;
 121          * if that fails, do line filling so it looks nice.
 122          */
 123 #define OFFICE_TAG              "Office"
 124 #define OFFICE_PHONE_TAG        "Office Phone"
 125         oddfield = 0;
 126         if (pn->office && pn->officephone &&
 127             strlen(pn->office) + strlen(pn->officephone) +
 128             sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
 129                 snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
 130                     OFFICE_TAG, pn->office, prphone(pn->officephone));
 131                 oddfield = demi_print(tbuf, oddfield);
 132         } else {
 133                 if (pn->office) {
 134                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 135                             OFFICE_TAG, pn->office);
 136                         oddfield = demi_print(tbuf, oddfield);
 137                 }
 138                 if (pn->officephone) {
 139                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 140                             OFFICE_PHONE_TAG, prphone(pn->officephone));
 141                         oddfield = demi_print(tbuf, oddfield);
 142                 }
 143         }
 144         if (pn->homephone) {
 145                 snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
 146                     prphone(pn->homephone));
 147                 oddfield = demi_print(tbuf, oddfield);
 148         }
 149         if (oddfield)
 150                 putchar('\n');
 151
 152 no_gecos:
 153         /*
 154          * long format con't:
 155          * if logged in
 156          *      terminal
 157          *      idle time
 158          *      if messages allowed
 159          *      where logged in from
 160          * if not logged in
 161          *      when last logged in
 162          */
 163         /* find out longest device name for this user for formatting */
 164         for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
 165                 if ((len = strlen(w->tty)) > maxlen)
 166                         maxlen = len;
 167         /* find rest of entries for user */
 168         for (w = pn->whead; w != NULL; w = w->next) {
 169                 if (w->info == LOGGEDIN) {
 170                         tp = localtime(&w->loginat);
 171                         strftime(t, sizeof(t),
 172                             d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
 173                             tp);
 174                         cpr = printf("On since %s on %s", t, w->tty);
 175                         /*
 176                          * idle time is tough; if have one, print a comma,
 177                          * then spaces to pad out the device name, then the
 178                          * idle time.  Follow with a comma if a remote login.
 179                          */
 180                         delta = gmtime(&w->idletime);
 181                         if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
 182                                 cpr += printf("%-*s idle ",
 183                                     maxlen - (int)strlen(w->tty) + 1, ",");
 184                                 if (delta->tm_yday > 0) {
 185                                         cpr += printf("%d day%s ",
 186                                            delta->tm_yday,
 187                                            delta->tm_yday == 1 ? "" : "s");
 188                                 }
 189                                 cpr += printf("%d:%02d",
 190                                     delta->tm_hour, delta->tm_min);
 191                                 if (*w->host) {
 192                                         putchar(',');
 193                                         ++cpr;
 194                                 }
 195                         }
 196                         if (!w->writable)
 197                                 cpr += printf(" (messages off)");
 198                 } else if (w->loginat == 0) {
 199                         cpr = printf("Never logged in.");
 200                 } else {
 201                         tp = localtime(&w->loginat);
 202                         if (now - w->loginat > 86400 * 365 / 2) {
 203                                 strftime(t, sizeof(t),
 204                                          d_first ? "%a %e %b %R %Y (%Z)" :
 205                                                    "%a %b %e %R %Y (%Z)",
 206                                          tp);
 207                         } else {
 208                                 strftime(t, sizeof(t),
 209                                          d_first ? "%a %e %b %R (%Z)" :
 210                                                    "%a %b %e %R (%Z)",
 211                                          tp);
 212                         }
 213                         cpr = printf("Last login %s on %s", t, w->tty);
 214                 }
 215                 if (*w->host) {
 216                         if (LINE_LEN < (cpr + 6 + strlen(w->host)))
 217                                 (void)printf("\n   ");
 218                         (void)printf(" from %s", w->host);
 219                 }
 220                 putchar('\n');
 221         }
 222         if (pn->mailrecv == -1)
 223                 printf("No Mail.\n");
 224         else if (pn->mailrecv > pn->mailread) {
 225                 tp = localtime(&pn->mailrecv);
 226                 strftime(t, sizeof(t),
 227                          d_first ? "%a %e %b %R %Y (%Z)" :
 228                                    "%a %b %e %R %Y (%Z)",
 229                          tp);
 230                 printf("New mail received %s\n", t);
 231                 tp = localtime(&pn->mailread);
 232                 strftime(t, sizeof(t),
 233                          d_first ? "%a %e %b %R %Y (%Z)" :
 234                                    "%a %b %e %R %Y (%Z)",
 235                          tp);
 236                 printf("     Unread since %s\n", t);
 237         } else {
 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("Mail last read %s\n", t);
 244         }
 245 }
 246
 247 static int
 248 demi_print(char *str, int oddfield)
 249 {
 250         static int lenlast;
 251         int lenthis, maxlen;
 252
 253         lenthis = strlen(str);
 254         if (oddfield) {
 255                 /*
 256                  * We left off on an odd number of fields.  If we haven't
 257                  * crossed the midpoint of the screen, and we have room for
 258                  * the next field, print it on the same line; otherwise,
 259                  * print it on a new line.
 260                  *
 261                  * Note: we insist on having the right hand fields start
 262                  * no less than 5 tabs out.
 263                  */
 264                 maxlen = 5 * TAB_LEN;
 265                 if (maxlen < lenlast)
 266                         maxlen = lenlast;
 267                 if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
 268                     lenthis) <= LINE_LEN) {
 269                         while(lenlast < (4 * TAB_LEN)) {
 270                                 putchar('\t');
 271                                 lenlast += TAB_LEN;
 272                         }
 273                         printf("\t%s\n", str);  /* force one tab */
 274                 } else {
 275                         printf("\n%s", str);    /* go to next line */
 276                         oddfield = !oddfield;   /* this'll be undone below */
 277                 }
 278         } else
 279                 printf("%s", str);
 280         oddfield = !oddfield;                   /* toggle odd/even marker */
 281         lenlast = lenthis;
 282         return(oddfield);
 283 }
 284
 285 int
 286 show_text(const char *directory, const char *file_name, const char *header)
 287 {
 288         struct stat sb;
 289         FILE *fp;
 290         int ch, cnt;
 291         char *p, lastc;
 292         int fd, nr;
 293
 294         lastc = '\0';
 295
 296         (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
 297         if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
 298             sb.st_size == 0)
 299                 return(0);
 300
 301         /* If short enough, and no newlines, show it on a single line.*/
 302         if ((uintptr_t)sb.st_size <= LINE_LEN - strlen(header) - 5) {
 303                 nr = read(fd, tbuf, sizeof(tbuf));
 304                 if (nr <= 0) {
 305                         (void)close(fd);
 306                         return(0);
 307                 }
 308                 for (p = tbuf, cnt = nr; cnt--; ++p)
 309                         if (*p == '\n')
 310                                 break;
 311                 if (cnt <= 1) {
 312                         if (*header != '\0')
 313                                 (void)printf("%s: ", header);
 314                         for (p = tbuf, cnt = nr; cnt--; ++p)
 315                                 if (*p != '\r')
 316                                         vputc(lastc = *p);
 317                         if (lastc != '\n')
 318                                 (void)putchar('\n');
 319                         (void)close(fd);
 320                         return(1);
 321                 }
 322                 else
 323                         (void)lseek(fd, 0L, SEEK_SET);
 324         }
 325         if ((fp = fdopen(fd, "r")) == NULL)
 326                 return(0);
 327         if (*header != '\0')
 328                 (void)printf("%s:\n", header);
 329         while ((ch = getc(fp)) != EOF)
 330                 if (ch != '\r')
 331                         vputc(lastc = ch);
 332         if (lastc != '\n')
 333                 (void)putchar('\n');
 334         (void)fclose(fp);
 335         return(1);
 336 }
 337
 338 static void
 339 vputc(unsigned char ch)
 340 {
 341         int meta;
 342
 343         if (!isprint(ch) && !isascii(ch)) {
 344                 putchar('M');
 345                 putchar('-');
 346                 ch = toascii(ch);
 347                 meta = 1;
 348         } else
 349                 meta = 0;
 350         if (eightflag || isprint(ch) ||
 351             (!meta && (ch == ' ' || ch == '\t' || ch == '\n'))) {
 352                 putchar(ch);
 353         } else {
 354                 putchar('^');
 355                 putchar(ch == '\177' ? '?' : ch | 0100);
 356         }
 357 }