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get_starttime: add support for GNU Hurd using the mach task_info call.

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This is currently Hurd-specific but could be made Mach-generic as
long as the equivalent of pid2task() is available.
This commit is contained in:
Todd C. Miller
2023-02-19 07:18:37 -07:00
parent 0b000aab86
commit a72bc5e6bf
2 changed files with 32 additions and 1 deletions
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2
plugins/sudoers/regress/starttime/check_starttime.c
View File

@@ -32,7 +32,7 @@
sudo_dso_public int main(int argc, char *argv[]);
#if defined(sudo_kinfo_proc) || defined(__linux__) || defined(HAVE_STRUCT_PSINFO_PR_TTYDEV) || defined(HAVE_PSTAT_GETPROC)
#if defined(sudo_kinfo_proc) || defined(__linux__) || defined(HAVE_STRUCT_PSINFO_PR_TTYDEV) || defined(HAVE_PSTAT_GETPROC) || defined(__gnu_hurd__)
#ifdef __linux__
static int

31
plugins/sudoers/starttime.c
View File

@@ -47,6 +47,12 @@
# include <sys/pstat.h>
#endif
#if defined(__gnu_hurd__)
# include <hurd.h>
# include <mach/task_info.h>
# include <mach/time_value.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -298,6 +304,31 @@ get_starttime(pid_t pid, struct timespec *starttime)
"unable to get start time for %d via pstat_getproc", (int)pid);
debug_return_int(-1);
}
#elif defined(__gnu_hurd__)
int
get_starttime(pid_t pid, struct timespec *starttime)
{
mach_msg_type_number_t count;
struct task_basic_info info;
kern_return_t error;
task_t target;
debug_decl(get_starttime, SUDOERS_DEBUG_UTIL);
target = pid2task(pid);
if (target != MACH_PORT_NULL) {
count = sizeof(info) / sizeof(integer_t);
error = task_info(target, TASK_BASIC_INFO, (task_info_t)&info, &count);
if (error == KERN_SUCCESS) {
starttime->tv_sec = info.creation_time.seconds;
starttime->tv_nsec = info.creation_time.microseconds * 1000;
debug_return_int(0);
}
}
sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|SUDO_DEBUG_ERRNO,
"unable to get start time for %d via task_info", (int)pid);
debug_return_int(-1);
}
#else
int
get_starttime(pid_t pid, struct timespec *starttime)