minix/commands/dirname/dirname.c

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2005-04-21 16:53:53 +02:00
/* dirname - extract the directory name from a path Author: Peter Holzer */
/* Dirname -- extract directory part from a path name
*
* Peter Holzer (hp@vmars.tuwien.ac.at)
*
* $Log$
* Revision 1.1 2005/04/21 14:55:21 beng
* Initial revision
*
* Revision 1.1.1.1 2005/04/20 13:33:30 beng
* Initial import of minix 2.0.4
*
* Revision 1.1 1994/02/12 16:15:02 hjp
* Initial revision
*
*/
#include <string.h>
#include <stdio.h>
int main(int argc, char **argv)
{
char *p;
char *path;
if (argc != 2) {
fprintf(stderr, "Usage: %s path\n", argv[0]);
return(1);
}
path = argv[1];
p = path + strlen(path);
while (p > path && p[-1] == '/') p--; /* trailing slashes */
while (p > path && p[-1] != '/') p--; /* last component */
while (p > path && p[-1] == '/') p--; /* trailing slashes */
if (p == path) {
printf(path[0] == '/' ? "/\n" : ".\n");
} else {
printf("%.*s\n", (int) (p - path), path);
}
return(0);
}