collecting stat info from a module

**Sue Paterniti** · 05-08-2002

I have a pgm calling a function in a module.

The program is to pass a file name to the module function - and then the module function will collect the stat information and return the stat info to the calling program.

I have written the following in my calling pgm:

Code:

struct stat file_info;

&file_info = statfile(filename);

and then in my module function:

Code:

file_info statfile(name_type filename) {
      stat(filename, &file_info);
      return(file_info); }

I am getting a compile error saying:
incompatible types in return

Can anyone suggest a solution?
Sue

**fyodor** · 05-08-2002

Code:

file_info statfile(name_type filename) {
      stat(filename, &file_info);
      return(file_info); }

It looks as if you are declaring a function that returns type file_info. Therefore, "&file_info" doesnt really make any sense in the stat() call. It is analogous to calling some function funct(&int), which may be the case in your situation but I doubt it. Also, returning file_info is not very meaninful either. Or I am an idiot and/or am intepreting your code incorrectly...

**Sue Paterniti** · 05-08-2002

No - I think I am the idiot here!!

The calling pgm has the requirement to collect stat information for selected files and write the information to another file.

So - I thought I would call the initial pgm and pass the file name in as a command parameter.

Then pass the parameter to the function in the module - which should collect the stat info - and pass it back to the calling pgm - which then copies it to the fields in the output file.

Am I making hard work of this?

Is there another way?

Should I just call the function in the module and move all my other code (ie the field copies, and file writes) into the module?

Your thoughts would be appreciated...
Thanks
Sue

**Hammer** · 05-08-2002

I dont think you really need to put the stat() call in a seperate function of its own. Here's some sample code for you to review and amend to suit:

Code:

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>

int main(int argc, char *argv[])
{
	struct stat mystat;
	
	if (argc != 2)
	{
		printf("Invalid args\n");
		return(1);
	}
	
	if (stat(argv[1], &mystat) == -1)
	{
		perror(argv[1]);
		return (1);
	}
	
	printf("stat worked, is ");
	
	if (S_ISREG(mystat.st_mode))		// can be done better
		printf("a regular file\n");
	else
		printf("not a regular file\n");
	return (0);
}

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