dir.c File Reference

Genericised directory functions. More...

#include "ctl/ctldef.h"
#include "ctl/dir.h"
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/stat.h>
#include <stdio.h>
#include "ctl/ctlstring.h"
#include "unit/unit.h"

Include dependency graph for dir.c:

Go to the source code of this file.

Functions
char *	ctl_cwd (char *buffer, size_t cMax)
	Get current working directory.
bool	ctl_chdir (const char *path)
	Change working directory.
void	ctl_move (const char *src, const char *dst)
	Change an existing file's name and/or location.
void	ctl_copy (const char *src, const char *dst)
	Copy a file.
void	ctl_unlink (const char *path)
	Remove a file.
void	ctl_rmdir (const char *path)
	Remove an EMPTY directory.
void	ctl_mkdir (const char *path)
	Make a directory.

---

Detailed Description

Genericised directory functions.

Author:

David Mace

Definition in file dir.c.

---

Function Documentation

bool ctl_chdir

(

const char *

path

)

Change working directory.

Parameters:

path

New path to change app's working directory to

Definition at line 65 of file dir.c.

References assertconst.

{
    assertconst(path,1);
#ifdef WIN32
    return (bool)SetCurrentDirectory(path);
#else
    return (bool)(0 != chdir(path));
#endif
}

void ctl_copy	(	const char *	src,
		const char *	dst
	)

Copy a file.

Parameters:

	src	Path to original file
	dst	Path to destination, including the file name

Definition at line 98 of file dir.c.

References assertconst.

{
    assertconst(src,1);
    assertconst(dst,1);
#ifdef WIN32
    CopyFile( src, dst, FALSE );
#else
    int srcfd = open ( src, O_RDONLY|O_BINARY );
    if (srcfd >= 0)
    {
        int destfd = open( dst, O_CREAT|O_TRUNC|O_RDWR|O_BINARY, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH );
        if (destfd >= 0)
        {
            char buff[32768];
            ssize_t nread = read(srcfd, buff, sizeof (buff));
            ssize_t nwrote;
            while (nread > 0)
            {
                nwrote = write(destfd, buff, nread);
                if( nwrote != nread )
                    break;
                nread = read(srcfd, buff, sizeof (buff));
            }
            close(destfd);
        }
        close(srcfd);
    }
#endif
}

char* ctl_cwd	(	char *	buffer,
		size_t	cMax
	)

Get current working directory.

Parameters:

	buffer	Character string to receive working folder
	cMax	Maximum count of characters

Definition at line 35 of file dir.c.

References assertptr.

{
    char* result;
    assertptr(buffer,cMax);
#ifdef WIN32
    GetCurrentDirectory( (DWORD)cMax, buffer );
#else
    result = getcwd( buffer, cMax );
#endif
    if( NULL != result )
    {
        char* p = ctl_eattrailingslash( buffer );
#ifdef WIN32
        if( (size_t)(p - buffer) < cMax )
            *p++ = '\\';
#else
        if( (size_t)(p - buffer) < cMax )
            *p++ = '/';
#endif
        if( (size_t)(p - buffer) < cMax )
            *p = 0;
    }
    return result;
}

void ctl_mkdir

(

const char *

path

)

Make a directory.

Parameters:

path

Path to create

Definition at line 163 of file dir.c.

References assertconst.

{
    assertconst(path,1);
#ifdef WIN32
    CreateDirectory(path,NULL);
#else
    /* Let this user and his whole group play with it (assuming umask permits it) */
    mkdir( path, S_IRWXU | S_IRWXG );
#endif
}

void ctl_move	(	const char *	src,
		const char *	dst
	)

Change an existing file's name and/or location.

Parameters:

	src	Path to original file
	dst	Path to destination, including the file name

Definition at line 81 of file dir.c.

References assertconst.

{
    assertconst(src,1);
    assertconst(dst,1);
#ifdef WIN32
    MoveFileEx( src, dst, MOVEFILE_COPY_ALLOWED|MOVEFILE_REPLACE_EXISTING );
#else
    rename( src, dst );
#endif
}

void ctl_rmdir

(

const char *

path

)

Remove an EMPTY directory.

Parameters:

path

Path to remove (won't remove it if path isn't empty)

Definition at line 148 of file dir.c.

References assertconst.

{
    assertconst(path,1);
#ifdef WIN32
    RemoveDirectory(path);
#else
    rmdir(path);
#endif
}

void ctl_unlink

(

const char *

path

)

Remove a file.

Parameters:

path

Path to destroy

Definition at line 133 of file dir.c.

References assertconst.

{
    assertconst(path,1);
#ifdef WIN32
    DeleteFile( path );
#else
    unlink( path );
#endif
}