#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

#ifdef __linux
#include <attr/xattr.h>
#include <sys/types.h>
#endif
#ifdef __APPLE__
#include <sys/xattr.h>
#define getxattr(file, name, buffer, size) \
	getxattr((file), (name), (buffer), (size), 0, 0)
#define listxattr(file, buffer, size) \
	listxattr((file), (buffer), (size), 0)
#endif

#define MAXATTR 1023
char buffer[MAXATTR+1];
char names[MAXATTR+1];

int main (int argc, char **argv ) {
	char *name;

	if (argc != 2 || !argv[1] ) {
		printf("Bad invocation!\n"
			"Usage: dumpxattrs FILENAME\n");
		exit(1);
	}

	int size = listxattr(argv[1], names, MAXATTR);

	if (size == -1) {
		perror("listxattr() failed");
		exit(2);
	}
	if (size==0) {
		printf("%s: No xattrs\n", argv[1]);
		return(0);
	}
	names[size]='\0';


	for (name = names; name != NULL && name-names<size; ) {

		int vsize = getxattr(argv[1], name, buffer, MAXATTR);

		if (vsize == -1) {
			printf("getxattr(\"%s\", \"%s\", ...) failed: %s\n", argv[1], name,
          strerror(errno));
			exit(2);
		}

		buffer[vsize]='\0';
		printf("%s: `%s'=`%s'\n", argv[1], name, buffer);

		name = (char*)memchr(name, '\0', size - (name-names));
		if (name) name++;
	}

	return 0;
}