Hello
This is a simple program i carried out in my machine
i dont know how it is working
#include<alloc.h>
#include<stdio.h>
mian()
{
int *p,j;
p= (int*)malloc(1);
for(j=1;j<=580;j++)
{
*p=j;
++p;
}
p=p-580;
for(j=1;j<=580;j++)
{
printf("%d",*p);
} (7 Replies)
Hi All,
In my application malloc is returning NULL even though there is sufficient amount of free memory is available but swap memory is low.
Is this possible that, if free memory is high & swap memory is low, malloc will not be able to allocate memory & return NULL ?:)
Kindly look into... (5 Replies)
Hi All,:)
In my application malloc is returning NULL even though there is sufficient amount of free memory available but the swap memory is low.
Is this possible that, if free memory is high & swap memory is low, malloc will not be able to allocate memory & return NULL ?
Few details:
... (4 Replies)
Hi all,
I am very new to BASH shell programming. I need to return an integer from a function to the caller function. I did this:
but it keeps giving me wrong return:
Can someone help me out here, please?
Thanks (2 Replies)
Hi,
I am having an issue using getservbyport. Here is a little program to demonstrate the problem (removed the includes):
int
main(void) {
struct servent *service;
int memsize = sizeof(struct servent);
service = (struct servent *)malloc(memsize);
... (2 Replies)
Hi,
The following shell script returning null results could you please tell me whats the problem in script,
*********************************
#!/bin/ksh
. $HOME/conf/systemProperties/EnvSetup.properties
a=`date +"%y%m%d"`
set -x
for i in `cat... (2 Replies)
Hi All
In my script, I can call on several functions. I have a logging function that is called by any of these functions. What I would like is some way of identifying which function I am using and pass this to the log function as some parameter.
Is there some built in command or way of... (3 Replies)
In a 'C' program,when I am trying to allocate memory with the help of malloc () function, it is allocating the memory up to a certain limit for e.g. in my case, it is 670 MB (approx). malloc() returns NULL if I allocate more than this amount of memory.When I tried
to allocate memory in chunks of... (1 Reply)
OS : Solaris 10
When I try to get the "echo" service port, getservbyname is returning null.
I checked - /etc/services having an entry for echo -
echo 7/tcp (But still getservbyname returning null)
Any other config required to consider? (1 Reply)
I am calling getpwnam_r with all proper argument as below:-
rv = getpwnam_r(name, result, buffer, buflen);
This program runs fine on sol 8/9/10.
But on sol 11 it returns NULL with errno set to 25
(#define ENOTTY 25 /* Inappropriate ioctl for device */)
All boxes are... (2 Replies)
Discussion started by: Ranajit
2 Replies
LEARN ABOUT REDHAT
cap_free
CAP_INIT(3) Linux Programmer's Manual CAP_INIT(3)NAME
cap_init, cap_free, cap_dup - capability data object storage management
SYNOPSIS
#include <sys/capability.h>
cap_t cap_init(void);
int cap_free(void *obj_d);
cap_t cap_dup(cap_t cap_p);
USAGE
cc ... -lcap
DESCRIPTION
The capabilities associated with a file or process are never edited directly. Instead, working storage is allocated to contain a represen-
tation of the capability state. Capabilities are edited and manipulated only within this working storage area. Once editing of the capa-
bility state is complete, the updated capability state is used to replace the capability state associated with the file or process.
cap_init creates a capability state in working storage and return a pointer to the capability state. The initial value of all flags are
cleared. The caller should free any releasable memory, when the capability state in working storage is no longer required, by calling
cap_free with the cap_t as an argument.
cap_free liberates any releasable memory that has been allocated to the capability state identified by obj_d. The obj_d argument may iden-
tify either a cap_t entity, or a char * entity allocated by the cap_to_text function.
cap_dup returns a duplicate capability state in working storage given by the source object cap_p, allocating any memory necessary, and
returning a pointer to the newly created capability state. Once duplicated, no operation on either capability state affects the other in
any way.
RETURN VALUE
cap_init and cap_dup return a non-NULL value on success, and NULL on failure.
cap_free returns zero on success, and -1 on failure.
On failure, errno(3) is set to EINVAL, or ENOMEM.
CONFORMING TO
These functions are specified by POSIX.1e.
SEE ALSO cap_clear(3), cap_copy_ext(3), cap_from_text(3), cap_get_file(3), cap_get_proc(3)
26th May 1997 CAP_INIT(3)