osdep-cygwin.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
   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/param.h>
  20 #include <sys/stat.h>
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25
  26 #include "tmux.h"
  27
  28 char *
  29 osdep_get_name(int fd, __unused char *tty)
  30 {
  31         FILE    *f;
  32         char    *path, *buf;
  33         size_t   len;
  34         int      ch;
  35         pid_t    pgrp;
  36
  37         if ((pgrp = tcgetpgrp(fd)) == -1)
  38                 return (NULL);
  39
  40         xasprintf(&path, "/proc/%lld/cmdline", (long long) pgrp);
  41         if ((f = fopen(path, "r")) == NULL) {
  42                 free(path);
  43                 return (NULL);
  44         }
  45         free(path);
  46
  47         len = 0;
  48         buf = NULL;
  49         while ((ch = fgetc(f)) != EOF) {
  50                 if (ch == '\0')
  51                         break;
  52                 buf = xrealloc(buf, len + 2);
  53                 buf[len++] = ch;
  54         }
  55         if (buf != NULL)
  56                 buf[len] = '\0';
  57
  58         fclose(f);
  59         return (buf);
  60 }
  61
  62 char *
  63 osdep_get_cwd(int fd)
  64 {
  65         static char      target[MAXPATHLEN + 1];
  66         char            *path;
  67         pid_t            pgrp;
  68         ssize_t          n;
  69
  70         if ((pgrp = tcgetpgrp(fd)) == -1)
  71                 return (NULL);
  72
  73         xasprintf(&path, "/proc/%lld/cwd", (long long) pgrp);
  74         n = readlink(path, target, MAXPATHLEN);
  75         free(path);
  76         if (n > 0) {
  77                 target[n] = '\0';
  78                 return (target);
  79         }
  80         return (NULL);
  81 }
  82
  83 struct event_base *
  84 osdep_event_init(void)
  85 {
  86         return (event_init());
  87 }