external/bsd/tmux/dist/osdep-sunos.c

   1 /* Id */
   2
   3 /*
   4  * Copyright (c) 2009 Todd Carson <toc@daybefore.net>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20 #include <sys/stat.h>
  21
  22 #include <event.h>
  23 #include <fcntl.h>
  24 #include <procfs.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28
  29 #include "tmux.h"
  30
  31 char *
  32 osdep_get_name(int fd, char *tty)
  33 {
  34         struct psinfo    p;
  35         struct stat      st;
  36         char            *path;
  37         ssize_t          bytes;
  38         int              f;
  39         pid_t            pgrp;
  40
  41         if ((f = open(tty, O_RDONLY)) < 0)
  42                 return (NULL);
  43
  44         if (fstat(f, &st) != 0 || ioctl(f, TIOCGPGRP, &pgrp) != 0) {
  45                 close(f);
  46                 return (NULL);
  47         }
  48         close(f);
  49
  50         xasprintf(&path, "/proc/%u/psinfo", (u_int) pgrp);
  51         f = open(path, O_RDONLY);
  52         free(path);
  53         if (f < 0)
  54                 return (NULL);
  55
  56         bytes = read(f, &p, sizeof(p));
  57         close(f);
  58         if (bytes != sizeof(p))
  59                 return (NULL);
  60
  61         if (p.pr_ttydev != st.st_rdev)
  62                 return (NULL);
  63
  64         return (xstrdup(p.pr_fname));
  65 }
  66
  67 char *
  68 osdep_get_cwd(int fd)
  69 {
  70         static char      target[MAXPATHLEN + 1];
  71         char            *path;
  72         ssize_t          n;
  73         pid_t            pgrp;
  74
  75         if ((pgrp = tcgetpgrp(fd)) == -1)
  76                 return (NULL);
  77
  78         xasprintf(&path, "/proc/%u/path/cwd", (u_int) pgrp);
  79         n = readlink(path, target, MAXPATHLEN);
  80         free(path);
  81         if (n > 0) {
  82                 target[n] = '\0';
  83                 return (target);
  84         }
  85         return (NULL);
  86 }
  87
  88 struct event_base *
  89 osdep_event_init(void)
  90 {
  91         return (event_init());
  92 }