#include "uthash.h"

#include <stdlib.h>   /* malloc */

#include <errno.h>    /* perror */

#include <stdio.h>    /* printf */

#define BUFLEN 20

#if 0

/* Print a message if the hash's no-expand flag is set. */

#undef uthash_noexpand_fyi 

#undef uthash_expand_fyi 

#define uthash_noexpand_fyi(tbl) printf("noexpand set\n");

#define uthash_expand_fyi(tbl) printf("hash expanded\n");

#endif

typedef struct name_rec {

    char boy_name[BUFLEN];

    UT_hash_handle hh;

} name_rec;

int namecmp(void *_a, void *_b) {

    name_rec *a = (name_rec*)_a;

    name_rec *b = (name_rec*)_b;

    return strcmp(a->boy_name,b->boy_name);

}

int main(int argc,char *argv[]) {

    name_rec *name, *names=NULL;

    char linebuf[BUFLEN];

    FILE *file;

    if ( (file = fopen( "test11.dat", "r" )) == NULL ) {

        perror("can't open: "); 

        exit(-1);

    }

    while (fgets(linebuf,BUFLEN,file) != NULL) {

        if ( (name = (name_rec*)malloc(sizeof(name_rec))) == NULL) exit(-1);

        strncpy(name->boy_name,linebuf,BUFLEN);

        HASH_ADD_STR(names,boy_name,name);

    }

    fclose(file);

    HASH_SORT(names,namecmp);

    for(name=names;name;name=(name_rec*)(name->hh.next)) 

      printf("%s",name->boy_name);

   return 0;

}