You're using too many *'s. Wherever you see * in front, imagine an [] at the end: ** would be an array of arrays.
sizeof(char **) doesn't make sense either. You want 5000 characters. How large is one character? sizeof(char). How large is 5000 of them? sizeof(char) * 5000.
Next, you don't need strncmp, strcmp() will do. fgets() and the like NULL-terminate their strings properly.
Last, how do you handle unlimited input? you can use realloc() to extend the size of an existing block of memory.
You can even call realloc() on a NULL pointer(pointer to nothing) -- it will know to just give you fresh data. So you can just run the exact same code every loop, the first time isn't anything special.
All,
How can I enable largefiles in one of the filesytems in Sun OS 5.9 ?
ls -l
-rw-r--r-- 1 oracle dba 2548163397 Dec 3 02:57 TT_TT_full.dmp.Z
cp -p TT_TT_full.dmp.Z /exports/tt/
cp: TT_TT_full.dmp.Z: File too large
ulimit -a
time(seconds) unlimited
file(blocks) ... (1 Reply)
I am trying to create a shell (ksh) which has two "read" commands, one which reads a line from a file and another which is inside a loop that reads user input from a keyboard. However, the "read" command inside the loop uses the input from the file and it does not get the user input from keyboard.... (3 Replies)
Hi,
as per my Unix admin all parameters in Ulimit are set to Unlimited in Hard limits but some how few profiles setting data segment part to limited number value. So i wanted to over write in my profile to set unlimited as hard limits are set to unlimited. What is the command to set ulimit for... (1 Reply)
Hi,
I want to set the coredump to unlimited, but it seems it does not work.
> ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) 1048576
stack(kbytes) 131072
memory(kbytes) unlimited
coredump(blocks) 4194303... (1 Reply)
Hi,
echo "Enter file name of input file list along with absolute path : "
read inputFileList
if
then
for string in `cat inputFileList`
do
echo $string
done
else
echo " file does not exist"
fi
From the above code, if the user enters a invalid file... (1 Reply)
i have a script which takes input from user, if user gives either Y/y then it should continue, else it should quit by displaying user cancelled.
#!/bin/sh
echo " Enter your choice to continue y/Y OR n/N to quit "
read A
if
then
echo " user requested to continue "
##some commands... (7 Replies)
I am trying to allow a user to enter in text and then store that text in a variable $gene to run in an awk command in which those values are used to run some calculations. I am getting syntax errors however, when I try. Thank you :).
The awk runs great if it is a pre-defined file that is used,... (7 Replies)
I was trying to generate core dump of a process.But it is not generated.
While digging up the issue I found that Core File Size is set to 0.
I set it with #ulimit -c unlimited.After that I found the core file size is set to 0 (ulimit -a).I exit that session and again logged in.But found the core... (12 Replies)
Discussion started by: Anjan Ganguly
12 Replies
LEARN ABOUT REDHAT
buf_mem_grow
buffer(3) OpenSSL buffer(3)NAME
BUF_MEM_new, BUF_MEM_free, BUF_MEM_grow, BUF_strdup - simple character arrays structure
SYNOPSIS
#include <openssl/buffer.h>
BUF_MEM *BUF_MEM_new(void);
void BUF_MEM_free(BUF_MEM *a);
int BUF_MEM_grow(BUF_MEM *str, int len);
char * BUF_strdup(const char *str);
DESCRIPTION
The buffer library handles simple character arrays. Buffers are used for various purposes in the library, most notably memory BIOs.
The library uses the BUF_MEM structure defined in buffer.h:
typedef struct buf_mem_st
{
int length; /* current number of bytes */
char *data;
int max; /* size of buffer */
} BUF_MEM;
length is the current size of the buffer in bytes, max is the amount of memory allocated to the buffer. There are three functions which
handle these and one "miscellaneous" function.
BUF_MEM_new() allocates a new buffer of zero size.
BUF_MEM_free() frees up an already existing buffer. The data is zeroed before freeing up in case the buffer contains sensitive data.
BUF_MEM_grow() changes the size of an already existing buffer to len. Any data already in the buffer is preserved if it increases in size.
BUF_strdup() copies a null terminated string into a block of allocated memory and returns a pointer to the allocated block. Unlike the
standard C library strdup() this function uses OPENSSL_malloc() and so should be used in preference to the standard library strdup()
because it can be used for memory leak checking or replacing the malloc() function.
The memory allocated from BUF_strdup() should be freed up using the OPENSSL_free() function.
RETURN VALUES
BUF_MEM_new() returns the buffer or NULL on error.
BUF_MEM_free() has no return value.
BUF_MEM_grow() returns zero on error or the new size (i.e. len).
SEE ALSO bio(3)HISTORY
BUF_MEM_new(), BUF_MEM_free() and BUF_MEM_grow() are available in all versions of SSLeay and OpenSSL. BUF_strdup() was added in SSLeay 0.8.
0.9.7a 2000-09-19 buffer(3)