1 /*- 2 * Copyright (c) 2007-2008 Robert N. M. Watson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/sysctl.h> 31 #include <sys/user.h> 32 33 #include <err.h> 34 #include <libprocstat.h> 35 #include <stdlib.h> 36 #include <stdio.h> 37 #include <unistd.h> 38 39 #include "procstat.h" 40 41 void 42 procstat_cred(struct kinfo_proc *kipp) 43 { 44 int i; 45 int mib[4]; 46 int ngroups; 47 size_t len; 48 gid_t *groups = NULL; 49 50 if (!hflag) 51 printf("%5s %-16s %5s %5s %5s %5s %5s %5s %5s %-15s\n", "PID", 52 "COMM", "EUID", "RUID", "SVUID", "EGID", "RGID", "SVGID", 53 "FLAGS", "GROUPS"); 54 55 printf("%5d ", kipp->ki_pid); 56 printf("%-16s ", kipp->ki_comm); 57 printf("%5d ", kipp->ki_uid); 58 printf("%5d ", kipp->ki_ruid); 59 printf("%5d ", kipp->ki_svuid); 60 printf("%5d ", kipp->ki_groups[0]); 61 printf("%5d ", kipp->ki_rgid); 62 printf("%5d ", kipp->ki_svgid); 63 printf("%s", kipp->ki_cr_flags & CRED_FLAG_CAPMODE ? "C" : "-"); 64 printf(" "); 65 66 /* 67 * We may have too many groups to fit in kinfo_proc's statically 68 * sized storage. If that occurs, attempt to retrieve them via 69 * sysctl. 70 */ 71 if (kipp->ki_cr_flags & KI_CRF_GRP_OVERFLOW) { 72 mib[0] = CTL_KERN; 73 mib[1] = KERN_PROC; 74 mib[2] = KERN_PROC_GROUPS; 75 mib[3] = kipp->ki_pid; 76 77 ngroups = sysconf(_SC_NGROUPS_MAX) + 1; 78 len = ngroups * sizeof(gid_t); 79 if((groups = malloc(len)) == NULL) 80 err(-1, "malloc"); 81 82 if (sysctl(mib, 4, groups, &len, NULL, 0) == -1) { 83 warn("sysctl: kern.proc.groups: %d " 84 "group list truncated", kipp->ki_pid); 85 free(groups); 86 groups = NULL; 87 } 88 ngroups = len / sizeof(gid_t); 89 } 90 if (groups == NULL) { 91 ngroups = kipp->ki_ngroups; 92 groups = kipp->ki_groups; 93 } 94 for (i = 0; i < ngroups; i++) 95 printf("%s%d", (i > 0) ? "," : "", groups[i]); 96 if (groups != kipp->ki_groups) 97 free(groups); 98 99 printf("\n"); 100 } 101