Current Path : /usr/src/cddl/contrib/opensolaris/lib/libuutil/common/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //usr/src/cddl/contrib/opensolaris/lib/libuutil/common/uu_ident.c |
/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include "libuutil_common.h" #include <string.h> /* * We require names of the form: * [provider,]identifier[/[provider,]identifier]... * * Where provider is either a stock symbol (SUNW) or a java-style reversed * domain name (com.sun). * * Both providers and identifiers must start with a letter, and may * only contain alphanumerics, dashes, and underlines. Providers * may also contain periods. * * Note that we do _not_ use the macros in <ctype.h>, since they are affected * by the current locale settings. */ #define IS_ALPHA(c) \ (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z')) #define IS_DIGIT(c) \ ((c) >= '0' && (c) <= '9') static int is_valid_ident(const char *s, const char *e, int allowdot) { char c; if (s >= e) return (0); /* name is empty */ c = *s++; if (!IS_ALPHA(c)) return (0); /* does not start with letter */ while (s < e && (c = *s++) != 0) { if (IS_ALPHA(c) || IS_DIGIT(c) || c == '-' || c == '_' || (allowdot && c == '.')) continue; return (0); /* invalid character */ } return (1); } static int is_valid_component(const char *b, const char *e, uint_t flags) { char *sp; if (flags & UU_NAME_DOMAIN) { sp = strchr(b, ','); if (sp != NULL && sp < e) { if (!is_valid_ident(b, sp, 1)) return (0); b = sp + 1; } } return (is_valid_ident(b, e, 0)); } int uu_check_name(const char *name, uint_t flags) { const char *end = name + strlen(name); const char *p; if (flags & ~(UU_NAME_DOMAIN | UU_NAME_PATH)) { uu_set_error(UU_ERROR_UNKNOWN_FLAG); return (-1); } if (!(flags & UU_NAME_PATH)) { if (!is_valid_component(name, end, flags)) goto bad; return (0); } while ((p = strchr(name, '/')) != NULL) { if (!is_valid_component(name, p - 1, flags)) goto bad; name = p + 1; } if (!is_valid_component(name, end, flags)) goto bad; return (0); bad: uu_set_error(UU_ERROR_INVALID_ARGUMENT); return (-1); }