find or create directories in UNIX C

[Guest_imported]

I have an array of directories, for eg:
array1: dir1
array2: dir2
array3: dir3
array4: dir4
PATH: /dir1/dir2/dir3/dir4

I want to locate and create if necessary the directory structure as shown in the path.

Whats the best way to do this in UNIX C?

thanks

 

[rbobbitt]

The short program below leaves a lot to be desired, but it should give you the basic idea:


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

#define DIRSIZE 200

int main(void)
{
char *s[]={&quot;/dir1&quot;,&quot;/dir2&quot;,&quot;/dir3&quot;,&quot;/dir4&quot;};
char new_dir[DIRSIZE+1];
int i;

for (i=0;s;++i) {
/* insert buffer overflow checking here */
strcat(new_dir,s);
if (mkdir(new_dir,S_IRWXU)==-1) {
perror(&quot;Failed to create directory&quot;
} else {
printf(&quot;Created %s\n&quot;,new_dir);
}
}
return 0;
}

HTH, [sig]<p>Russ<br><a href=mailto:bobbitts@hotmail.com>bobbitts@hotmail.com</a><br><a href=

http://home.earthlink.net/~bobbitts>Bobbitt

is in</a><br>[/sig]

 

[Guest_imported]

thats great - thanks,

but how would you first check if the directory exists or not before creating.

otherwise, will that create it only if it doesnt exist?

 

[rbobbitt]

mkdir() fails if the directory already exists. [sig]<p>Russ<br><a href=mailto:bobbitts@hotmail.com>bobbitts@hotmail.com</a><br><a href=

http://home.earthlink.net/~bobbitts>Bobbitt

is in</a><br>[/sig]