diff options
Diffstat (limited to 'usr.bin/procstat/procstat_cred.c')
| -rw-r--r-- | usr.bin/procstat/procstat_cred.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/usr.bin/procstat/procstat_cred.c b/usr.bin/procstat/procstat_cred.c new file mode 100644 index 0000000..250747d --- /dev/null +++ b/usr.bin/procstat/procstat_cred.c @@ -0,0 +1,126 @@ +/*- + * Copyright (c) 2007-2008 Robert N. M. Watson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/sysctl.h> +#include <sys/user.h> + +#include <err.h> +#include <libprocstat.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +#include "procstat.h" + +static const char *get_umask(struct kinfo_proc *kipp); + +void +procstat_cred(struct kinfo_proc *kipp) +{ + int i; + int mib[4]; + int ngroups; + size_t len; + gid_t *groups = NULL; + + if (!hflag) + printf("%5s %-16s %5s %5s %5s %5s %5s %5s %5s %5s %-15s\n", + "PID", "COMM", "EUID", "RUID", "SVUID", "EGID", "RGID", + "SVGID", "UMASK", "FLAGS", "GROUPS"); + + printf("%5d ", kipp->ki_pid); + printf("%-16s ", kipp->ki_comm); + printf("%5d ", kipp->ki_uid); + printf("%5d ", kipp->ki_ruid); + printf("%5d ", kipp->ki_svuid); + printf("%5d ", kipp->ki_groups[0]); + printf("%5d ", kipp->ki_rgid); + printf("%5d ", kipp->ki_svgid); + printf("%5s ", get_umask(kipp)); + printf("%s", kipp->ki_cr_flags & CRED_FLAG_CAPMODE ? "C" : "-"); + printf(" "); + + /* + * We may have too many groups to fit in kinfo_proc's statically + * sized storage. If that occurs, attempt to retrieve them via + * sysctl. + */ + if (kipp->ki_cr_flags & KI_CRF_GRP_OVERFLOW) { + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + mib[2] = KERN_PROC_GROUPS; + mib[3] = kipp->ki_pid; + + ngroups = sysconf(_SC_NGROUPS_MAX) + 1; + len = ngroups * sizeof(gid_t); + if((groups = malloc(len)) == NULL) + err(-1, "malloc"); + + if (sysctl(mib, 4, groups, &len, NULL, 0) == -1) { + warn("sysctl: kern.proc.groups: %d " + "group list truncated", kipp->ki_pid); + free(groups); + groups = NULL; + } + ngroups = len / sizeof(gid_t); + } + if (groups == NULL) { + ngroups = kipp->ki_ngroups; + groups = kipp->ki_groups; + } + for (i = 0; i < ngroups; i++) + printf("%s%d", (i > 0) ? "," : "", groups[i]); + if (groups != kipp->ki_groups) + free(groups); + + printf("\n"); +} + +static const char * +get_umask(struct kinfo_proc *kipp) +{ + int error; + int mib[4]; + size_t len; + u_short fd_cmask; + static char umask[4]; + + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + mib[2] = KERN_PROC_UMASK; + mib[3] = kipp->ki_pid; + len = sizeof(fd_cmask); + error = sysctl(mib, 4, &fd_cmask, &len, NULL, 0); + if (error == 0) { + snprintf(umask, 4, "%03o", fd_cmask); + return (umask); + } else { + return ("-"); + } +} |
