lib/vroot/vroot.cc

10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/*
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * CDDL HEADER START
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * The contents of this file are subject to the terms of the
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Common Development and Distribution License (the "License").
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * You may not use this file except in compliance with the License.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * or http://www.opensolaris.org/os/licensing.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * See the License for the specific language governing permissions
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * and limitations under the License.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * When distributing Covered Code, include this CDDL HEADER in each
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * If applicable, add the following below this CDDL HEADER, with the
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * fields enclosed by brackets "[]" replaced with your own identifying
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * information: Portions Copyright [yyyy] [name of copyright owner]
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * CDDL HEADER END
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/*
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Use is subject to license terms.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <stdlib.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <string.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <vroot/vroot.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <vroot/args.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <string.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <sys/param.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <sys/file.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowetypedef struct {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    short       init;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    pathpt      vector;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    const char  *env_var;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} vroot_patht;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowetypedef struct {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_patht vroot;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_patht path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    char        full_path[MAXPATHLEN+1];
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    char        *vroot_start;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    char        *path_start;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    char        *filename_start;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    int     scan_vroot_first;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    int     cpp_style_path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} vroot_datat, *vroot_datapt;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowestatic vroot_datat  vroot_data= {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    { 0, NULL, "VIRTUAL_ROOT"},
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    { 0, NULL, "PATH"},
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    "", NULL, NULL, NULL, 0, 1};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweadd_dir_to_path(const char *path, register pathpt *pointer, register int position)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register int        size= 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register int        length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register char       *name;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register pathcellpt p;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    pathpt          new_path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (*pointer != NULL) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        for (p= &((*pointer)[0]); p->path != NULL; p++, size++);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (position < 0)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            position= size;}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    else
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (position < 0)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            position= 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (position >= size) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        new_path= (pathpt)calloc((unsigned)(position+2), sizeof(pathcellt));
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (*pointer != NULL) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            memcpy((char *)new_path,(char *)(*pointer),  size*sizeof(pathcellt));
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            free((char *)(*pointer));};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        *pointer= new_path;};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    length= strlen(path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    name= (char *)malloc((unsigned)(length+1));
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    (void)strcpy(name, path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if ((*pointer)[position].path != NULL)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        free((*pointer)[position].path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    (*pointer)[position].path= name;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    (*pointer)[position].length= length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowepathpt
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweparse_path_string(register char *string, register int remove_slash)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register char       *p;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    pathpt          result= NULL;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (string != NULL)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        for (; 1; string= p+1) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if (p= strchr(string, ':')) *p= 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if ((remove_slash == 1) && !strcmp(string, "/"))
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                add_dir_to_path("", &result, -1);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            else
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                add_dir_to_path(string, &result, -1);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if (p) *p= ':';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            else return(result);};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    return((pathpt)NULL);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweconst char *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweget_vroot_name(void)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    return(vroot_data.vroot.env_var);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweconst char *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweget_path_name(void)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    return(vroot_data.path.env_var);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweflush_path_cache(void)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.path.init= 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweflush_vroot_cache(void)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.vroot.init= 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowescan_path_first(void)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.scan_vroot_first= 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowescan_vroot_first(void)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.scan_vroot_first= 1;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweset_path_style(int style)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.cpp_style_path= style;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowechar *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweget_vroot_path(register char **vroot, register char **path, register char **filename)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (vroot != NULL) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if ((*vroot= vroot_data.vroot_start) == NULL)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if ((*vroot= vroot_data.path_start) == NULL)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        *vroot= vroot_data.filename_start;};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (path != NULL) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if ((*path= vroot_data.path_start) == NULL)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        *path= vroot_data.filename_start;};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (filename != NULL)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        *filename= vroot_data.filename_start;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    return(vroot_data.full_path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowetranslate_with_thunk(register char *filename, int (*thunk) (char *), pathpt path_vector, pathpt vroot_vector, rwt rw)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register pathcellt  *vp;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    pathcellt       *pp;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register pathcellt  *pp1;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    register char       *p;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    int         flags[256];
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/* Setup path to use */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (rw == rw_write)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        pp1= NULL;      /* Do not use path when writing */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    else {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (path_vector == VROOT_DEFAULT) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if (!vroot_data.path.init) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                vroot_data.path.init= 1;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                vroot_data.path.vector= parse_path_string(getenv(vroot_data.path.env_var), 0);};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            path_vector= vroot_data.path.vector;};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        pp1= path_vector == NULL ? NULL : &(path_vector)[0];};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/* Setup vroot to use */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (vroot_vector == VROOT_DEFAULT) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (!vroot_data.vroot.init) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            vroot_data.vroot.init= 1;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            vroot_data.vroot.vector= parse_path_string(getenv(vroot_data.vroot.env_var), 1);};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        vroot_vector= vroot_data.vroot.vector;};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vp= vroot_vector == NULL ? NULL : &(vroot_vector)[0];
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/* Setup to remember pieces */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.vroot_start= NULL;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.path_start= NULL;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    vroot_data.filename_start= NULL;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    int flen = strlen(filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if(flen >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    switch ((vp ?1:0) + (pp1 ? 2:0)) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        case 0: /* No path. No vroot. */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        use_name:
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void)strcpy(vroot_data.full_path, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        vroot_data.filename_start= vroot_data.full_path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void)(*thunk)(vroot_data.full_path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        case 1: /* No path. Vroot */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (filename[0] != '/') goto use_name;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        for (; vp->path != NULL; vp++) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if((1 + flen + vp->length) >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            p= vroot_data.full_path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            (void)strcpy(vroot_data.vroot_start= p, vp->path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            p+= vp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            (void)strcpy(vroot_data.filename_start= p, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if ((*thunk)(vroot_data.full_path)) return;};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void)strcpy(vroot_data.full_path, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        case 2: /* Path. No vroot. */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (vroot_data.cpp_style_path) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if (filename[0] == '/') goto use_name;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        } else {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if (strchr(filename, '/') != NULL) goto use_name;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        };
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        for (; pp1->path != NULL; pp1++) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            p= vroot_data.full_path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if((1 + flen + pp1->length) >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if (vroot_data.cpp_style_path) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                (void)strcpy(vroot_data.path_start= p, pp1->path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                p+= pp1->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                *p++= '/';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            } else {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                if (pp1->length != 0) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    (void)strcpy(vroot_data.path_start= p,
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        pp1->path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    p+= pp1->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    *p++= '/';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                };
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            };
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            (void)strcpy(vroot_data.filename_start= p, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            if ((*thunk)(vroot_data.full_path)) return;};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void)strcpy(vroot_data.full_path, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        case 3: {   /* Path. Vroot. */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            int *rel_path, path_len= 1;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        if (vroot_data.scan_vroot_first == 0) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            for (pp= pp1; pp->path != NULL; pp++) path_len++;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            rel_path= flags;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            for (path_len-= 2; path_len >= 0; path_len--) rel_path[path_len]= 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            for (; vp->path != NULL; vp++)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                for (pp= pp1, path_len= 0; pp->path != NULL; pp++, path_len++) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    int len = 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if (rel_path[path_len] == 1) continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if (pp->path[0] != '/') rel_path[path_len]= 1;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    p= vroot_data.full_path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if ((filename[0] == '/') || (pp->path[0] == '/')) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        if(vp->length >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        (void)strcpy(vroot_data.vroot_start= p, vp->path); p+= vp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        len += vp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    };
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if (vroot_data.cpp_style_path) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        if (filename[0] != '/') {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            if(1 + len + pp->length >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            (void)strcpy(vroot_data.path_start= p, pp->path); p+= pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            *p++= '/';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            len += 1 + pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        };
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    } else {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        if (strchr(filename, '/') == NULL) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            if (pp->length != 0) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                if(1 + len + pp->length >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                    errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                    continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                (void)strcpy(vroot_data.path_start= p,
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                    pp->path);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                p+= pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                *p++= '/';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                len += 1 + pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    };
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    (void)strcpy(vroot_data.filename_start= p, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if ((*thunk)(vroot_data.full_path)) return;};}
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        else { pathcellt *vp1= vp;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe            for (pp= pp1, path_len= 0; pp->path != NULL; pp++, path_len++)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                for (vp= vp1; vp->path != NULL; vp++) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    int len = 0;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    p= vroot_data.full_path;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if ((filename[0] == '/') || (pp->path[0] == '/')) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        if(vp->length >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        (void)strcpy(vroot_data.vroot_start= p, vp->path); p+= vp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        len += vp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if (vroot_data.cpp_style_path) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        if (filename[0] != '/') {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            if(1 + len + pp->length >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            (void)strcpy(vroot_data.path_start= p, pp->path); p+= pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            *p++= '/';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            len += 1 + pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    } else {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        if (strchr(filename, '/') == NULL) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            if(1 + len + pp->length >= MAXPATHLEN) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                errno = ENAMETOOLONG;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                                continue;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            (void)strcpy(vroot_data.path_start= p, pp->path); p+= pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            *p++= '/';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                            len += 1 + pp->length;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                        }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    }
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    (void)strcpy(vroot_data.filename_start= p, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe                    if ((*thunk)(vroot_data.full_path)) return;};};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void)strcpy(vroot_data.full_path, filename);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;};};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}