Find out the error Post: 302479102

Sponsored Content

Top Forums Programming Find out the error Post 302479102 by gokult on Thursday 9th of December 2010 09:19:49 PM

12-09-2010

Registered User

Find out the error

Please see the error below

Program:

Code:

#include<stdio.h>
#include<sys/types.h>
#include<sys/mman.h>
#include<stdlib.h>
#include<fcntl.h>
#include<sys/stat.h>
#include<unistd.h>
#include<signal.h>
#include<string.h>

main(int argc, char *argv[])
{
int fd,changes,i,random_spot,kids[2];
struct stat buf;
char *the_file,*starting_string="using mmap() can be fun\nandinformative!";

if (argc!=2)
{
fprintf(stderr, "Usage %s file_name \n",*argv);
exit(1);
}
if((fd=open(argv[1], O_CREAT | O_RDWR,0666))<0)
{
fprintf(stderr,"open error on file %s\n",*argv);
exit(3);
}
write(fd,starting_string,strlen(starting_string));
if(fstat(fd,&buf)<0)
{
fprintf(stderr,"fstat error on file %s\n",*argv);
exit(4);
}
if((the_file=mmap(0,(size_t)
buf.st_size,PROT_READ|PROT_WRITE,MAP_SHARED,fd,0))==(caddr_t)-1)
{
fprintf(stderr,"mmap failure\n");
exit(5);
}
for(i=0;i< strlen(the_file);++i)
{
If(*(the_file+i)>='0' && *(the_file+i)<='9')
*(the_file+i)='*';
sleep(1);
}
printf("Parent done with changes\n");
 printf("The file now contains:\n%s\n",the_file);
exit(0);
}

sample.c: In function `main':
sample.c:42: invalid operands to binary *

Last edited by jim mcnamara; 12-10-2010 at 07:25 AM.. Reason: code tags please

gokult

View Public Profile for gokult

Find all posts by gokult

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Error when using if [ find '

I am trying to issue the following command in script: if ; then and I am getting the following error: bad number Any ideas Rgds Joe

2. UNIX for Dummies Questions & Answers

2 AIX servers (AIX 5.3). From local server, I need to manage remote files. But I have some errors with find : # rsh remoteserver find /directory -name filename is OK : I can see the remote file BUT : # rsh remoteserver find /directory -name filename -exec ls -l {} \; fails : I have : find :...

3. AIX

Error: could not find any of these C compilers

Hi, While trying to configure Apache Web Server on P630 Server i am getting the below message "Creating Makefile in src + configured for AIX 5.2 platform Error: could not find any of these C compilers anywhere in your PATH: gcc cc acc c89 Configure terminated" when i did a "lslpp -l...

4. Shell Programming and Scripting

find error

I have a directory that our applications are continuely generate new file to it , some files hv a word "error" in content , I would like to find out which file hv this word and send me notify mail to inform me which file hv this word , currently , I have a stupid script to grep the word , the...

5. Shell Programming and Scripting

syntax error not able to find why

Hi Guru's here is part of my shell script where the error is coming. function daemon_start { daemon="" clear :<<COMMENT Meenakshi 25-Jun Code Cleanup IA - code comented - Start echo " `date` ...

6. UNIX for Advanced & Expert Users

error with find

for FNAME in `find . -type f -exec grep -il unixs317 {} \;`; do C=`grep -c unixs317 ${FNAME}`; echo "${C}:${FNAME}" >> output.txt; done When I run this command and a directory is empty it is returning an error and just does nothing more. How can I continue with my search even when it find...

7. UNIX for Dummies Questions & Answers

find - link - error

Have a random question: In simple terms I have a find command on a dir: /path/user/data/ /path/user is a link to: /tmp/storage/ The find command outputs the files it finds as: /path/user/data/file What I need is: /tmp/storage/file Is there a way to "resolve" the Unix...

8. Shell Programming and Scripting

find error?? find / -name "something.txt" 2>/dev/null

why is this giving me errors? i type this in: find / -name "something.txt" 2>/dev/null i get the following error messages: find: bad option 2 find: path-list predicate-list :confused:

9. Shell Programming and Scripting

find command error

Hi, We have a shell script which looks into a directroy for any folder older than 30 days and removes them. The command being used is find $ARCHIVE_DIR -type d -mtime +$PURGE_HIST_DAYS -exec rm -rf {} \; It removes some folders but then throw below errors for others: find:...

10. Shell Programming and Scripting

Cannot find Error

Today is my first day in shell scripting. I am not able to find error. Need Help! Error is :- syntax error near unexpected token `then' test.sh: line 50: ` if; then echo "Enter Path o(if empty file will be unzipped to /var/www/):" read path echo...

LEARN ABOUT XFREE86

bswap

BSWAP(3)						     Linux Programmer's Manual							  BSWAP(3)

NAME

       bswap_16, bswap_32, bswap_64 - reverse order of bytes

SYNOPSIS

       #include <byteswap.h>

       bswap_16(x);
       bswap_32(x);
       bswap_64(x);

DESCRIPTION

       These macros return a value in which the order of the bytes in their 2-, 4-, or 8-byte arguments is reversed.

RETURN VALUE

       These macros return the value of their argument with the bytes reversed.

ERRORS

       These macros always succeed.

CONFORMING TO

       These macros are GNU extensions.

EXAMPLE

       The  program  below  swaps the bytes of the 8-byte integer supplied as its command-line argument.  The following shell session demonstrates
       the use of the program:

	   $ ./a.out 0x0123456789abcdef
	   0x123456789abcdef ==> 0xefcdab8967452301

   Program source

       #include <stdio.h>
       #include <stdint.h>
       #include <stdlib.h>
       #include <inttypes.h>
       #include <byteswap.h>

       int
       main(int argc, char *argv[])
       {
	   uint64_t x;

	   if (argc != 2) {
	       fprintf(stderr, "Usage: %s <num>
", argv[0]);
	       exit(EXIT_FAILURE);
	   }

	   x = strtoul(argv[1], NULL, 0);
	   printf("0x%" PRIx64 " ==> 0x%" PRIx64 "
", x, bswap_64(x));

	   exit(EXIT_SUCCESS);
       }

SEE ALSO

       byteorder(3), endian(3)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Linux								    2017-09-15								  BSWAP(3)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Error when using if [ find '

Discussion started by: berminator

2. UNIX for Dummies Questions & Answers

error in a remote find

Discussion started by: annemar

3. AIX

Error: could not find any of these C compilers

Discussion started by: cherryven

4. Shell Programming and Scripting

find error

Discussion started by: ust