1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2009 Joshua Elsasser <josh@elsasser.org> 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/sysctl.h> 21 22 #include <Availability.h> 23 #include <libproc.h> 24 #include <stdlib.h> 25 #include <string.h> 26 #include <unistd.h> 27 28 #include "compat.h" 29 30 char *osdep_get_name(int, char *); 31 char *osdep_get_cwd(int); 32 struct event_base *osdep_event_init(void); 33 34 #ifndef __unused 35 #define __unused __attribute__ ((__unused__)) 36 #endif 37 38 char * 39 osdep_get_name(int fd, __unused char *tty) 40 { 41 #ifdef __MAC_10_7 42 struct proc_bsdshortinfo bsdinfo; 43 pid_t pgrp; 44 int ret; 45 46 if ((pgrp = tcgetpgrp(fd)) == -1) 47 return (NULL); 48 49 ret = proc_pidinfo(pgrp, PROC_PIDT_SHORTBSDINFO, 0, 50 &bsdinfo, sizeof bsdinfo); 51 if (ret == sizeof bsdinfo && *bsdinfo.pbsi_comm != '\0') 52 return (strdup(bsdinfo.pbsi_comm)); 53 return (NULL); 54 #else 55 int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, 0 }; 56 size_t size; 57 struct kinfo_proc kp; 58 59 if ((mib[3] = tcgetpgrp(fd)) == -1) 60 return (NULL); 61 62 size = sizeof kp; 63 if (sysctl(mib, 4, &kp, &size, NULL, 0) == -1) 64 return (NULL); 65 if (size != (sizeof kp) || *kp.kp_proc.p_comm == '\0') 66 return (NULL); 67 68 return (strdup(kp.kp_proc.p_comm)); 69 #endif 70 } 71 72 char * 73 osdep_get_cwd(int fd) 74 { 75 static char wd[PATH_MAX]; 76 struct proc_vnodepathinfo pathinfo; 77 pid_t pgrp; 78 int ret; 79 80 if ((pgrp = tcgetpgrp(fd)) == -1) 81 return (NULL); 82 83 ret = proc_pidinfo(pgrp, PROC_PIDVNODEPATHINFO, 0, 84 &pathinfo, sizeof pathinfo); 85 if (ret == sizeof pathinfo) { 86 strlcpy(wd, pathinfo.pvi_cdir.vip_path, sizeof wd); 87 return (wd); 88 } 89 return (NULL); 90 } 91 92 struct event_base * 93 osdep_event_init(void) 94 { 95 struct event_base *base; 96 97 /* 98 * On OS X, kqueue and poll are both completely broken and don't 99 * work on anything except socket file descriptors (yes, really). 100 */ 101 setenv("EVENT_NOKQUEUE", "1", 1); 102 setenv("EVENT_NOPOLL", "1", 1); 103 104 base = event_init(); 105 unsetenv("EVENT_NOKQUEUE"); 106 unsetenv("EVENT_NOPOLL"); 107 return (base); 108 } 109