/* vi: set sw=4 ts=4: *//* * feature.c --- convert between features and strings * * Copyright (C) 1999  Theodore Ts'o <tytso@mit.edu> * * This file can be redistributed under the terms of the GNU Library General * Public License * */#include <stdio.h>#include <stdlib.h>#include <string.h>#include <ctype.h>#include <errno.h>#include "e2p.h"struct hash {	int num;	const char *string;};static const struct hash hash_list[] = {	{ EXT2_HASH_LEGACY,   "legacy" },	{ EXT2_HASH_HALF_MD4, "half_md4" },	{ EXT2_HASH_TEA,      "tea" },	{ 0, 0 },};const char *e2p_hash2string(int num){	const struct hash *p;	static char buf[20];	for (p = hash_list; p->string; p++) {		if (num == p->num)			return p->string;	}	sprintf(buf, "HASHALG_%d", num);	return buf;}/* * Returns the hash algorithm, or -1 on error */int e2p_string2hash(char *string){	const struct hash *p;	char *eptr;	int num;	for (p = hash_list; p->string; p++) {		if (!strcasecmp(string, p->string)) {			return p->num;		}	}	if (strncasecmp(string, "HASHALG_", 8))		return -1;	if (string[8] == 0)		return -1;	num = strtol(string+8, &eptr, 10);	if (num > 255 || num < 0)		return -1;	if (*eptr)		return -1;	return num;}