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Annotation of embedaddon/tmux/osdep-sunos.c, revision 1.1.1.1

1.1       misho       1: /* $OpenBSD$ */
                      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/param.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(__unused 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:        const char      *ttypath;
                     73:        ssize_t          n;
                     74:        pid_t            pgrp;
                     75:        int              retval, ttyfd;
                     76: 
                     77:        if ((ttypath = ptsname(fd)) == NULL)
                     78:                return (NULL);
                     79:        if ((ttyfd = open(ttypath, O_RDONLY|O_NOCTTY)) == -1)
                     80:                return (NULL);
                     81: 
                     82:        retval = ioctl(ttyfd, TIOCGPGRP, &pgrp);
                     83:        close(ttyfd);
                     84:        if (retval == -1)
                     85:                return (NULL);
                     86: 
                     87:        xasprintf(&path, "/proc/%u/path/cwd", (u_int) pgrp);
                     88:        n = readlink(path, target, MAXPATHLEN);
                     89:        free(path);
                     90:        if (n > 0) {
                     91:                target[n] = '\0';
                     92:                return (target);
                     93:        }
                     94:        return (NULL);
                     95: }
                     96: 
                     97: struct event_base *
                     98: osdep_event_init(void)
                     99: {
                    100:        return (event_init());
                    101: }