Retro68/hfsutils/hfsutil.c

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2012-03-29 08:28:43 +00:00
/*
* hfsutils - tools for reading and writing Macintosh HFS volumes
* Copyright (C) 1996-1998 Robert Leslie
*
* 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
* (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: hfsutil.c,v 1.9 1998/09/28 23:21:49 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include <time.h>
# include <ctype.h>
# include <errno.h>
# include <sys/stat.h>
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# else
char *getcwd(char *buf, size_t size);
# endif
# include "hfs.h"
# include "hcwd.h"
# include "hfsutil.h"
# include "suid.h"
# include "glob.h"
# include "version.h"
# include "hattrib.h"
# include "hcd.h"
# include "hcopy.h"
# include "hdel.h"
# include "hformat.h"
# include "hls.h"
# include "hmkdir.h"
# include "hmount.h"
# include "hpwd.h"
# include "hrename.h"
# include "hrmdir.h"
# include "humount.h"
# include "hvol.h"
const char *argv0, *bargv0;
/*
* NAME: main()
* DESCRIPTION: program entry dispatch
*/
int main(int argc, char *argv[])
{
int i, len;
const char *dot;
struct {
const char *name;
int (*func)(int, char *[]);
} list[] = {
{ "hattrib", hattrib_main },
{ "hcd", hcd_main },
{ "hcopy", hcopy_main },
{ "hdel", hdel_main },
{ "hdir", hls_main },
{ "hformat", hformat_main },
{ "hls", hls_main },
{ "hmkdir", hmkdir_main },
{ "hmount", hmount_main },
{ "hpwd", hpwd_main },
{ "hrename", hrename_main },
{ "hrmdir", hrmdir_main },
{ "humount", humount_main },
{ "hvol", hvol_main },
{ 0, 0 }
};
suid_init();
if (argc == 2)
{
if (strcmp(argv[1], "--version") == 0)
{
printf("%s - %s\n", hfsutils_version, hfsutils_copyright);
printf("`%s --license' for licensing information.\n", argv[0]);
return 0;
}
else if (strcmp(argv[1], "--license") == 0)
{
printf("\n%s", hfsutils_license);
return 0;
}
}
argv0 = argv[0];
bargv0 = strrchr(argv0, '/');
if (bargv0 == 0)
bargv0 = argv0;
else
++bargv0;
dot = strchr(bargv0, '.');
len = dot ? dot - bargv0 : strlen(bargv0);
for (i = 0; list[i].name; ++i)
{
if (strncmp(bargv0, list[i].name, len) == 0)
{
int result;
bargv0 = list[i].name;
if (hcwd_init() == -1)
{
perror("Failed to initialize HFS working directories");
return 1;
}
result = list[i].func(argc, argv);
if (hcwd_finish() == -1)
{
perror("Failed to save working directory state");
return 1;
}
return result;
}
}
fprintf(stderr, "%s: Unknown operation `%s'\n", argv0, bargv0);
return 1;
}
/*
* NAME: hfsutil->perror()
* DESCRIPTION: output an HFS error
*/
void hfsutil_perror(const char *msg)
{
const char *str = strerror(errno);
if (hfs_error == 0)
fprintf(stderr, "%s: %s: %c%s\n", argv0, msg, tolower(*str), str + 1);
else
fprintf(stderr, "%s: %s: %s (%s)\n", argv0, msg, hfs_error, str);
}
/*
* NAME: hfsutil->perrorp()
* DESCRIPTION: output an HFS error for a pathname
*/
void hfsutil_perrorp(const char *path)
{
const char *str = strerror(errno);
if (hfs_error == 0)
fprintf(stderr, "%s: \"%s\": %c%s\n", argv0, path, tolower(*str), str + 1);
else
fprintf(stderr, "%s: \"%s\": %s (%s)\n", argv0, path, hfs_error, str);
}
/*
* NAME: hfsutil->remount()
* DESCRIPTION: mount a volume as though it were still mounted
*/
hfsvol *hfsutil_remount(mountent *ment, int flags)
{
hfsvol *vol;
hfsvolent vent;
if (ment == 0)
{
fprintf(stderr, "%s: No volume is current; use `hmount' or `hvol'\n",
argv0);
return 0;
}
suid_enable();
vol = hfs_mount(ment->path, ment->partno, flags);
suid_disable();
if (vol == 0)
{
hfsutil_perror(ment->path);
return 0;
}
hfs_vstat(vol, &vent);
if (strcmp(vent.name, ment->vname) != 0)
{
fprintf(stderr, "%s: Expected volume \"%s\" not found\n",
argv0, ment->vname);
fprintf(stderr, "%s: Replace media on %s or use `hmount'\n",
argv0, ment->path);
hfs_umount(vol);
return 0;
}
if (hfs_chdir(vol, ment->cwd) == -1)
{
fprintf(stderr, "%s: Current HFS directory \"%s%s:\" no longer exists\n",
argv0, ment->vname, ment->cwd);
}
return vol;
}
/*
* NAME: hfsutil->unmount()
* DESCRIPTION: unmount a volume
*/
void hfsutil_unmount(hfsvol *vol, int *result)
{
if (hfs_umount(vol) == -1 && *result == 0)
{
hfsutil_perror("Error closing HFS volume");
*result = 1;
}
}
/*
* NAME: hfsutil->pinfo()
* DESCRIPTION: print information about a volume
*/
void hfsutil_pinfo(hfsvolent *ent)
{
printf("Volume name is \"%s\"%s\n", ent->name,
(ent->flags & HFS_ISLOCKED) ? " (locked)" : "");
printf("Volume was created on %s", ctime(&ent->crdate));
printf("Volume was last modified on %s", ctime(&ent->mddate));
printf("Volume has %lu bytes free\n", ent->freebytes);
}
/*
* NAME: hfsutil->glob()
* DESCRIPTION: perform filename globbing
*/
char **hfsutil_glob(hfsvol *vol, int argc, char *argv[],
int *nelts, int *result)
{
char **fargv;
fargv = hfs_glob(vol, argc, argv, nelts);
if (fargv == 0 && *result == 0)
{
fprintf(stderr, "%s: globbing error\n", argv0);
*result = 1;
}
return fargv;
}
/*
* NAME: hfsutil->getcwd()
* DESCRIPTION: return full path to current directory (must be free()'d)
*/
char *hfsutil_getcwd(hfsvol *vol)
{
char *path, name[HFS_MAX_FLEN + 1 + 1];
long cwd;
int pathlen;
path = malloc(1);
path[0] = 0;
pathlen = 0;
cwd = hfs_getcwd(vol);
while (cwd != HFS_CNID_ROOTPAR)
{
char *new;
int namelen, i;
if (hfs_dirinfo(vol, &cwd, name) == -1)
return 0;
if (pathlen)
strcat(name, ":");
namelen = strlen(name);
new = realloc(path, namelen + pathlen + 1);
if (new == 0)
{
free(path);
ERROR(ENOMEM, 0);
return 0;
}
if (pathlen == 0)
new[0] = 0;
path = new;
/* push string down to make room for path prefix (memmove()-ish) */
i = pathlen + 1;
for (new = path + namelen + pathlen; i--; new--)
*new = *(new - namelen);
memcpy(path, name, namelen);
pathlen += namelen;
}
return path;
}
/*
* NAME: hfsutil->samepath()
* DESCRIPTION: return 1 iff paths refer to same object
*/
int hfsutil_samepath(const char *path1, const char *path2)
{
struct stat sbuf1, sbuf2;
return
stat(path1, &sbuf1) == 0 &&
stat(path2, &sbuf2) == 0 &&
sbuf1.st_dev == sbuf2.st_dev &&
sbuf1.st_ino == sbuf2.st_ino;
}
/*
* NAME: hfsutil->abspath()
* DESCRIPTION: make given UNIX path absolute (must be free()'d)
*/
char *hfsutil_abspath(const char *path)
{
char *cwd, *buf;
size_t len;
if (path[0] == '/')
return strdup(path);
cwd = getenv("PWD");
if (cwd && hfsutil_samepath(cwd, "."))
{
buf = malloc(strlen(cwd) + 1 + strlen(path) + 1);
if (buf == 0)
return 0;
strcpy(buf, cwd);
}
else
{
len = 32;
cwd = malloc(len);
if (cwd == 0)
return 0;
while (getcwd(cwd, len) == 0)
{
if (errno != ERANGE)
{
free(cwd);
return 0;
}
len <<= 1;
buf = realloc(cwd, len);
if (buf == 0)
{
free(cwd);
return 0;
}
cwd = buf;
}
buf = realloc(cwd, strlen(cwd) + 1 + strlen(path) + 1);
if (buf == 0)
{
free(cwd);
return 0;
}
}
strcat(buf, "/");
strcat(buf, path);
return buf;
}