KRB5_IS_THREAD_SAFE(3) BSD Library Functions Manual KRB5_IS_THREAD_SAFE(3)NAME
krb5_is_thread_safe -- is the Kerberos library compiled with multithread support
LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
SYNOPSIS
#include <krb5.h>
krb5_boolean
krb5_is_thread_safe(void);
DESCRIPTION
krb5_is_thread_safe returns TRUE if the library was compiled with with multithread support. If the library isn't compiled, the consumer have
to use a global lock to make sure Kerboros functions are not called at the same time by different threads.
SEE ALSO krb5_create_checksum(3), krb5_encrypt(3)HEIMDAL May 5, 2006 HEIMDAL
Check Out this Related Man Page
KRB5_TIMEOFDAY(3) BSD Library Functions Manual KRB5_TIMEOFDAY(3)NAME
krb5_timeofday, krb5_set_real_time, krb5_us_timeofday, krb5_format_time, krb5_string_to_deltat -- Kerberos 5 time handling functions
LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
SYNOPSIS
#include <krb5.h>
krb5_timestamp;
krb5_deltat;
krb5_error_code
krb5_set_real_time(krb5_context context, krb5_timestamp sec, int32_t usec);
krb5_error_code
krb5_timeofday(krb5_context context, krb5_timestamp *timeret);
krb5_error_code
krb5_us_timeofday(krb5_context context, krb5_timestamp *sec, int32_t *usec);
krb5_error_code
krb5_format_time(krb5_context context, time_t t, char *s, size_t len, krb5_boolean include_time);
krb5_error_code
krb5_string_to_deltat(const char *string, krb5_deltat *deltat);
DESCRIPTION
krb5_set_real_time sets the absolute time that the caller knows the KDC has. With this the Kerberos library can calculate the relative dif-
ference between the KDC time and the local system time and store it in the context. With this information the Kerberos library can adjust
all time stamps in Kerberos packages.
krb5_timeofday() returns the current time, but adjusted with the time difference between the local host and the KDC. krb5_us_timeofday()
also returns microseconds.
krb5_format_time formats the time t into the string s of length len. If include_time is set, the time is set include_time.
krb5_string_to_deltat parses delta time string into deltat.
SEE ALSO gettimeofday(2), krb5(3)HEIMDAL Sepember 16, 2006 HEIMDAL
Introduction
Originally, we only had one shell on unix. When ran a command, the shell would attempt to invoke one of the exec() system calls on it. It the command was an executable, the exec would succeed and the command would run. If the exec() failed, the shell would not give up, instead it... (3 Replies)
FreeBSD Kernel Internals, Dr. Marshall Kirk McKusick
nwbqBdghh6E
The first hour of Marshall Kirk McKusick's course on FreeBSD kernel internals based on his book, The Design and Implementation of the FreeBSD Operating System. (0 Replies)
Introduction
I have seen some misinformation regarding Unix file permissions. I will try to set the record straight. Take a look at this example of some output from ls:
$ ls -ld /usr/bin /usr/bin/cat
drwxrwxr-x 3 root bin 8704 Sep 23 2004 /usr/bin
-r-xr-xr-x 1 bin bin ... (6 Replies)
Suppose I have a main() function with only one malloc statement allocating say some 1 gb memory. Also say my system has 1 gb of ram.
main()
{
malloc(1gb)
return(0)
}
The program above exits without freeing the memory.
In this case will the 1 gb of heap memory be returned... (9 Replies)
I see lot of ad-hoc shell scripts in our servers which don't have a shebang at the beginning .
Does this mean that it will run on any shell ?
Is it a good practice to create scripts (even ad-hoc ones) without shebang ? (16 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
A shout out to Scott who gave me a helping hand to turn a simple sample Vue.js app I wrote yesterday into a Vue.js component:
Vue.component("unix-time", {
template: `<div class="time">{{unixtime}}</div>`,
data() {
return {
unixtime: ""
};
},
methods: {
... (1 Reply)
i read here that linux provides no way to determine when a directory was created.
https://www.unix.com/shell-programming-and-scripting/157874-creation-date-directory.htmlI have a directory /home/andy/scripts that had a README file in it.
That file says
I put the script in that directory and... (3 Replies)
Hello.
I can use any particular (stupid or not) format when using bash date command.
Example :
~> date --date "now" '+%Y-%m-%d %H!%M!%S'
2019-06-03 12!55!33or
~> date --date "now" '+%Y£%m£%d %H¤%M¤%S'
2019£06£03 12¤57¤36
or
~> date --date "now" '+%Y-%m-%d %H-%M-%S'
2019-06-03 12-58-51
... (4 Replies)
Morning All
So, I am starting looking into the world of UNIX for a new job (luckily not my primary function!) and I am looking to get stared. Like anything I seem to learn best by trying things out first in an environment but I have a key question:
Currently I use Oracle VirtualBox, can... (8 Replies)
I've installed Slack 14.2 on /dev/sda1 (/dev/sda2 is swap) and FreeBSD 12 on /dev/sda3 and lilo is the boot manager.
FreeBSD slices are as follows;
/ on /dev/ada0S3a, swap on /dev/ada0s3e, /var on /dev/ada0s3b, /tmp on /dev/ada0s3d and /usr on /dev/ada0s3f.
I hesitate to install Solaris 10... (2 Replies)
I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement?
for i in 1 2 3; do
echo "Ready?"
sleep 2
... (10 Replies)