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