From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/ipxe/src/net/oncrpc/nfs_uri.c | 148 ++++++++++++++++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 qemu/roms/ipxe/src/net/oncrpc/nfs_uri.c (limited to 'qemu/roms/ipxe/src/net/oncrpc/nfs_uri.c') diff --git a/qemu/roms/ipxe/src/net/oncrpc/nfs_uri.c b/qemu/roms/ipxe/src/net/oncrpc/nfs_uri.c new file mode 100644 index 000000000..c4c3f21e9 --- /dev/null +++ b/qemu/roms/ipxe/src/net/oncrpc/nfs_uri.c @@ -0,0 +1,148 @@ +/* + * Copyright (C) 2014 Marin Hannache . + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include +#include +#include +#include +#include + +/** @file + * + * Network File System protocol URI handling functions + * + */ + +int nfs_uri_init ( struct nfs_uri *nfs_uri, const struct uri *uri ) { + if ( ! ( nfs_uri->mountpoint = strdup ( uri->path ) ) ) + return -ENOMEM; + + nfs_uri->filename = basename ( nfs_uri->mountpoint ); + if ( strchr ( uri->path, '/' ) != NULL ) + nfs_uri->mountpoint = dirname ( nfs_uri->mountpoint ); + + if ( nfs_uri->filename[0] == '\0' ) { + free ( nfs_uri->mountpoint ); + return -EINVAL; + } + + if ( ! ( nfs_uri->path = strdup ( nfs_uri->filename ) ) ) { + free ( nfs_uri->mountpoint ); + return -ENOMEM; + } + nfs_uri->lookup_pos = nfs_uri->path; + + return 0; +} + +char *nfs_uri_mountpoint ( const struct nfs_uri *uri ) { + if ( uri->mountpoint + 1 == uri->filename || + uri->mountpoint == uri->filename ) + return "/"; + + return uri->mountpoint; +} + +int nfs_uri_next_mountpoint ( struct nfs_uri *uri ) { + char *sep; + + if ( uri->mountpoint + 1 == uri->filename || + uri->mountpoint == uri->filename ) + return -ENOENT; + + sep = strrchr ( uri->mountpoint, '/' ); + uri->filename[-1] = '/'; + uri->filename = sep + 1; + *sep = '\0'; + + free ( uri->path ); + if ( ! ( uri->path = strdup ( uri->filename ) ) ) { + uri->path = NULL; + return -ENOMEM; + } + uri->lookup_pos = uri->path; + + return 0; +} + +int nfs_uri_symlink ( struct nfs_uri *uri, const char *symlink ) { + size_t len; + char *new_path; + + if ( ! uri->path ) + return -EINVAL; + + if ( *symlink == '/' ) + { + if ( strncmp ( symlink, uri->mountpoint, + strlen ( uri->mountpoint ) ) != 0 ) + return -EINVAL; + + len = strlen ( uri->lookup_pos ) + strlen ( symlink ) - \ + strlen ( uri->mountpoint ); + if ( ! ( new_path = malloc ( len * sizeof ( char ) ) ) ) + return -ENOMEM; + + strcpy ( new_path, symlink + strlen ( uri->mountpoint ) ); + strcpy ( new_path + strlen ( new_path ), uri->lookup_pos ); + + } else { + len = strlen ( uri->lookup_pos ) + strlen ( symlink ); + if ( ! ( new_path = malloc ( len * sizeof ( char ) ) ) ) + return -ENOMEM; + + + strcpy ( new_path, symlink ); + strcpy ( new_path + strlen ( new_path ), uri->lookup_pos ); + } + + free ( uri->path ); + uri->lookup_pos = uri->path = new_path; + + return 0; +} + +char *nfs_uri_next_path_component ( struct nfs_uri *uri ) { + char *sep; + char *start; + + if ( ! uri->path ) + return NULL; + + for ( sep = uri->lookup_pos ; *sep != '\0' && *sep != '/'; sep++ ) + ; + + start = uri->lookup_pos; + uri->lookup_pos = sep; + if ( *sep != '\0' ) { + uri->lookup_pos++; + *sep = '\0'; + if ( *start == '\0' ) + return nfs_uri_next_path_component ( uri ); + } + + return start; +} + +void nfs_uri_free ( struct nfs_uri *uri ) { + free ( uri->mountpoint ); + free ( uri->path ); + uri->mountpoint = NULL; + uri->path = NULL; +} -- cgit 1.2.3-korg