adv_cmds/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
  37 #if 0
  38 #ifndef lint
  39 static char sccsid[] = "@(#)lprint.c    8.3 (Berkeley) 4/28/95";
  40 #endif
  41 #endif
  42
  43 #include <sys/cdefs.h>
  44 __FBSDID("$FreeBSD: src/usr.bin/finger/lprint.c,v 1.25 2004/03/14 06:43:34 jmallett Exp $");
  45
  46 #include <sys/types.h>
  47 #include <sys/socket.h>
  48 #include <sys/stat.h>
  49 #include <sys/time.h>
  50 #include <ctype.h>
  51 #include <db.h>
  52 #include <err.h>
  53 #include <fcntl.h>
  54 #include <langinfo.h>
  55 #include <paths.h>
  56 #include <pwd.h>
  57 #include <stdio.h>
  58 #include <string.h>
  59 #include <unistd.h>
  60 #include <utmpx.h>
  61 #include "finger.h"
  62 #include "pathnames.h"
  63
  64 #define LINE_LEN        80
  65 #define TAB_LEN         8               /* 8 spaces between tabs */
  66
  67 static int      demi_print(char *, int);
  68 static void     lprint(PERSON *);
  69 static void     vputc(unsigned char);
  70
  71 void
  72 lflag_print(void)
  73 {
  74         PERSON *pn;
  75         int sflag, r;
  76         PERSON *tmp;
  77         DBT data, key;
  78
  79         for (sflag = R_FIRST;; sflag = R_NEXT) {
  80                 r = (*db->seq)(db, &key, &data, sflag);
  81                 if (r == -1)
  82                         err(1, "db seq");
  83                 if (r == 1)
  84                         break;
  85                 memmove(&tmp, data.data, sizeof tmp);
  86                 pn = tmp;
  87                 if (sflag != R_FIRST)
  88                         putchar('\n');
  89                 lprint(pn);
  90                 if (!pplan) {
  91                         (void)show_text(pn->dir,
  92                             _PATH_FORWARD, "Mail forwarded to");
  93                         (void)show_text(pn->dir, _PATH_PROJECT, "Project");
  94                         if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
  95                                 (void)printf("No Plan.\n");
  96                         (void)show_text(pn->dir,
  97                             _PATH_PUBKEY, "Public key");
  98                 }
  99         }
 100 }
 101
 102 static void
 103 lprint(PERSON *pn)
 104 {
 105         struct tm *delta;
 106         WHERE *w;
 107         int cpr, len, maxlen;
 108         struct tm *tp;
 109         int oddfield;
 110         char t[80];
 111
 112         if (d_first < 0)
 113                 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
 114         /*
 115          * long format --
 116          *      login name
 117          *      real name
 118          *      home directory
 119          *      shell
 120          *      office, office phone, home phone if available
 121          *      mail status
 122          */
 123         (void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
 124             pn->name, pn->realname, pn->dir);
 125         (void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
 126
 127         if (gflag)
 128                 goto no_gecos;
 129         /*
 130          * try and print office, office phone, and home phone on one line;
 131          * if that fails, do line filling so it looks nice.
 132          */
 133 #define OFFICE_TAG              "Office"
 134 #define OFFICE_PHONE_TAG        "Office Phone"
 135         oddfield = 0;
 136         if (pn->office && pn->officephone &&
 137             strlen(pn->office) + strlen(pn->officephone) +
 138             sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
 139                 (void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
 140                     OFFICE_TAG, pn->office, prphone(pn->officephone));
 141                 oddfield = demi_print(tbuf, oddfield);
 142         } else {
 143                 if (pn->office) {
 144                         (void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
 145                             OFFICE_TAG, pn->office);
 146                         oddfield = demi_print(tbuf, oddfield);
 147                 }
 148                 if (pn->officephone) {
 149                         (void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
 150                             OFFICE_PHONE_TAG, prphone(pn->officephone));
 151                         oddfield = demi_print(tbuf, oddfield);
 152                 }
 153         }
 154         if (pn->homephone) {
 155                 (void)snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
 156                     prphone(pn->homephone));
 157                 oddfield = demi_print(tbuf, oddfield);
 158         }
 159         if (oddfield)
 160                 putchar('\n');
 161
 162 no_gecos:
 163         /*
 164          * long format con't:
 165          * if logged in
 166          *      terminal
 167          *      idle time
 168          *      if messages allowed
 169          *      where logged in from
 170          * if not logged in
 171          *      when last logged in
 172          */
 173         /* find out longest device name for this user for formatting */
 174         for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
 175                 if ((len = strlen(w->tty)) > maxlen)
 176                         maxlen = len;
 177         /* find rest of entries for user */
 178         for (w = pn->whead; w != NULL; w = w->next) {
 179                 if (w->info == LOGGEDIN) {
 180                         tp = localtime(&w->loginat);
 181                         strftime(t, sizeof(t),
 182                             d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
 183                             tp);
 184                         cpr = printf("On since %s on %s", t, w->tty);
 185                         /*
 186                          * idle time is tough; if have one, print a comma,
 187                          * then spaces to pad out the device name, then the
 188                          * idle time.  Follow with a comma if a remote login.
 189                          */
 190                         delta = gmtime(&w->idletime);
 191                         if (w->idletime != -1 && (delta->tm_yday ||
 192                             delta->tm_hour || delta->tm_min)) {
 193                                 cpr += printf("%-*s idle ",
 194                                     maxlen - (int)strlen(w->tty) + 1, ",");
 195                                 if (delta->tm_yday > 0) {
 196                                         cpr += printf("%d day%s ",
 197                                            delta->tm_yday,
 198                                            delta->tm_yday == 1 ? "" : "s");
 199                                 }
 200                                 cpr += printf("%d:%02d",
 201                                     delta->tm_hour, delta->tm_min);
 202                                 if (*w->host) {
 203                                         putchar(',');
 204                                         ++cpr;
 205                                 }
 206                         }
 207                         if (!w->writable)
 208                                 cpr += printf(" (messages off)");
 209                 } else if (w->loginat == 0) {
 210                         cpr = printf("Never logged in.");
 211                 } else {
 212                         tp = localtime(&w->loginat);
 213                         if (now - w->loginat > 86400 * 365 / 2) {
 214                                 strftime(t, sizeof(t),
 215                                          d_first ? "%a %e %b %R %Y (%Z)" :
 216                                                    "%a %b %e %R %Y (%Z)",
 217                                          tp);
 218                         } else {
 219                                 strftime(t, sizeof(t),
 220                                          d_first ? "%a %e %b %R (%Z)" :
 221                                                    "%a %b %e %R (%Z)",
 222                                          tp);
 223                         }
 224                         cpr = printf("Last login %s on %s", t, w->tty);
 225                 }
 226                 if (*w->host) {
 227                         if (LINE_LEN < (cpr + 6 + strlen(w->host)))
 228                                 (void)printf("\n   ");
 229                         (void)printf(" from %s", w->host);
 230                 }
 231                 putchar('\n');
 232         }
 233         if (pn->mailrecv == -1)
 234                 printf("No Mail.\n");
 235         else if (pn->mailrecv > pn->mailread) {
 236                 tp = localtime(&pn->mailrecv);
 237                 strftime(t, sizeof(t),
 238                          d_first ? "%a %e %b %R %Y (%Z)" :
 239                                    "%a %b %e %R %Y (%Z)",
 240                          tp);
 241                 printf("New mail received %s\n", t);
 242                 tp = localtime(&pn->mailread);
 243                 strftime(t, sizeof(t),
 244                          d_first ? "%a %e %b %R %Y (%Z)" :
 245                                    "%a %b %e %R %Y (%Z)",
 246                          tp);
 247                 printf("     Unread since %s\n", t);
 248         } else {
 249                 tp = localtime(&pn->mailread);
 250                 strftime(t, sizeof(t),
 251                          d_first ? "%a %e %b %R %Y (%Z)" :
 252                                    "%a %b %e %R %Y (%Z)",
 253                          tp);
 254                 printf("Mail last read %s\n", t);
 255         }
 256 }
 257
 258 static int
 259 demi_print(char *str, int oddfield)
 260 {
 261         static int lenlast;
 262         int lenthis, maxlen;
 263
 264         lenthis = strlen(str);
 265         if (oddfield) {
 266                 /*
 267                  * We left off on an odd number of fields.  If we haven't
 268                  * crossed the midpoint of the screen, and we have room for
 269                  * the next field, print it on the same line; otherwise,
 270                  * print it on a new line.
 271                  *
 272                  * Note: we insist on having the right hand fields start
 273                  * no less than 5 tabs out.
 274                  */
 275                 maxlen = 5 * TAB_LEN;
 276                 if (maxlen < lenlast)
 277                         maxlen = lenlast;
 278                 if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
 279                     lenthis) <= LINE_LEN) {
 280                         while(lenlast < (4 * TAB_LEN)) {
 281                                 putchar('\t');
 282                                 lenlast += TAB_LEN;
 283                         }
 284                         (void)printf("\t%s\n", str);    /* force one tab */
 285                 } else {
 286                         (void)printf("\n%s", str);      /* go to next line */
 287                         oddfield = !oddfield;   /* this'll be undone below */
 288                 }
 289         } else
 290                 (void)printf("%s", str);
 291         oddfield = !oddfield;                   /* toggle odd/even marker */
 292         lenlast = lenthis;
 293         return(oddfield);
 294 }
 295
 296 int
 297 show_text(const char *directory, const char *file_name, const char *header)
 298 {
 299         struct stat sb;
 300         FILE *fp;
 301         int ch, cnt;
 302         char *p, lastc;
 303         int fd, nr;
 304
 305         lastc = '\0';
 306
 307         (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
 308         if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
 309             sb.st_size == 0)
 310                 return(0);
 311
 312         /* If short enough, and no newlines, show it on a single line.*/
 313         if (sb.st_size <= LINE_LEN - strlen(header) - 5) {
 314                 nr = read(fd, tbuf, sizeof(tbuf));
 315                 if (nr <= 0) {
 316                         (void)close(fd);
 317                         return(0);
 318                 }
 319                 for (p = tbuf, cnt = nr; cnt--; ++p)
 320                         if (*p == '\n')
 321                                 break;
 322                 if (cnt <= 1) {
 323                         if (*header != '\0')
 324                                 (void)printf("%s: ", header);
 325                         for (p = tbuf, cnt = nr; cnt--; ++p)
 326                                 if (*p != '\r')
 327                                         vputc(lastc = *p);
 328                         if (lastc != '\n')
 329                                 (void)putchar('\n');
 330                         (void)close(fd);
 331                         return(1);
 332                 }
 333                 else
 334                         (void)lseek(fd, 0L, SEEK_SET);
 335         }
 336         if ((fp = fdopen(fd, "r")) == NULL)
 337                 return(0);
 338         if (*header != '\0')
 339                 (void)printf("%s:\n", header);
 340         while ((ch = getc(fp)) != EOF)
 341                 if (ch != '\r')
 342                         vputc(lastc = ch);
 343         if (lastc != '\n')
 344                 (void)putchar('\n');
 345         (void)fclose(fp);
 346         return(1);
 347 }
 348
 349 static void
 350 vputc(unsigned char ch)
 351 {
 352         int meta;
 353
 354         if (!isprint(ch) && !isascii(ch)) {
 355                 (void)putchar('M');
 356                 (void)putchar('-');
 357                 ch = toascii(ch);
 358                 meta = 1;
 359         } else
 360                 meta = 0;
 361         if (isprint(ch) || (!meta && (ch == ' ' || ch == '\t' || ch == '\n')))
 362                 (void)putchar(ch);
 363         else {
 364                 (void)putchar('^');
 365                 (void)putchar(ch == '\177' ? '?' : ch | 0100);
 366         }
 367 }