408 lines
8.4 KiB
C
408 lines
8.4 KiB
C
/*
|
|
* The new sysinstall program.
|
|
*
|
|
* This is probably the last attempt in the `sysinstall' line, the next
|
|
* generation being slated to essentially a complete rewrite.
|
|
*
|
|
* $Id: media_strategy.c,v 1.1 1995/05/17 14:39:53 jkh Exp $
|
|
*
|
|
* Copyright (c) 1995
|
|
* Jordan Hubbard. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer,
|
|
* verbatim and that no modifications are made prior to this
|
|
* point in the file.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Jordan Hubbard
|
|
* for the FreeBSD Project.
|
|
* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
|
|
* endorse or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include "sysinstall.h"
|
|
#include <ctype.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/file.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <sys/param.h>
|
|
#include <sys/dkbad.h>
|
|
#include <sys/mman.h>
|
|
|
|
#define MSDOSFS
|
|
#define CD9660
|
|
#define NFS
|
|
#include <sys/mount.h>
|
|
#undef MSDOSFS
|
|
#undef CD9660
|
|
#undef NFS
|
|
|
|
#define MAX_ATTRIBS 20
|
|
#define MAX_NAME 511
|
|
#define MAX_VALUE 4095
|
|
|
|
struct attribs {
|
|
char *name;
|
|
char *value;
|
|
};
|
|
|
|
static int lno;
|
|
static int num_attribs;
|
|
|
|
static int
|
|
attr_parse(struct attribs **attr, char *file)
|
|
{
|
|
char hold_n[MAX_NAME+1];
|
|
char hold_v[MAX_VALUE+1];
|
|
int n, v, ch = 0;
|
|
enum { LOOK, COMMENT, NAME, VALUE, COMMIT } state;
|
|
FILE *fp;
|
|
|
|
num_attribs = n = v = lno = 0;
|
|
state = LOOK;
|
|
|
|
if ((fp=fopen(file, "r")) == NULL)
|
|
{
|
|
msgFatal("Cannot open the information file `%s': %s (%d)", file, strerror(errno), errno);
|
|
return 0;
|
|
}
|
|
|
|
while (state == COMMIT || (ch = fgetc(fp)) != EOF) {
|
|
/* Count lines */
|
|
if (ch == '\n')
|
|
++lno;
|
|
switch(state) {
|
|
case LOOK:
|
|
if (isspace(ch))
|
|
continue;
|
|
/* Allow shell or lisp style comments */
|
|
else if (ch == '#' || ch == ';') {
|
|
state = COMMENT;
|
|
continue;
|
|
}
|
|
else if (isalpha(ch)) {
|
|
hold_n[n++] = ch;
|
|
state = NAME;
|
|
}
|
|
else {
|
|
msgConfirm("Invalid character '%c' at line %d\n", ch, lno);
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case COMMENT:
|
|
if (ch == '\n')
|
|
state = LOOK;
|
|
break;
|
|
|
|
case NAME:
|
|
if (ch == '\n') {
|
|
hold_n[n] = '\0';
|
|
hold_v[v = 0] = '\0';
|
|
state = COMMIT;
|
|
}
|
|
else if (isspace(ch))
|
|
continue;
|
|
else if (ch == '=') {
|
|
hold_n[n] = '\0';
|
|
state = VALUE;
|
|
}
|
|
else
|
|
hold_n[n++] = ch;
|
|
break;
|
|
|
|
case VALUE:
|
|
if (v == 0 && isspace(ch))
|
|
continue;
|
|
else if (ch == '{') {
|
|
/* multiline value */
|
|
while ((ch = fgetc(fp)) != '}') {
|
|
if (ch == EOF) {
|
|
msgConfirm("Unexpected EOF on line %d", lno);
|
|
return 0;
|
|
}
|
|
else {
|
|
if (v == MAX_VALUE) {
|
|
msgConfirm("Value length overflow at line %d",
|
|
lno);
|
|
return 0;
|
|
}
|
|
hold_v[v++] = ch;
|
|
}
|
|
}
|
|
hold_v[v] = '\0';
|
|
state = COMMIT;
|
|
}
|
|
else if (ch == '\n') {
|
|
hold_v[v] = '\0';
|
|
state = COMMIT;
|
|
}
|
|
else {
|
|
if (v == MAX_VALUE) {
|
|
msgConfirm("Value length overflow at line %d", lno);
|
|
return 0;
|
|
}
|
|
else
|
|
hold_v[v++] = ch;
|
|
}
|
|
break;
|
|
|
|
case COMMIT:
|
|
attr[num_attribs]->name = strdup(hold_n);
|
|
attr[num_attribs++]->value = strdup(hold_v);
|
|
state = LOOK;
|
|
v = n = 0;
|
|
break;
|
|
|
|
default:
|
|
msgConfirm("Unknown state at line %d??\n", lno);
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static const char *
|
|
attr_match(struct attribs *attr, char *name)
|
|
{
|
|
int n = 0;
|
|
|
|
while((strcmp(attr[n].name, name)!=0) && (n < num_attribs))
|
|
n++;
|
|
|
|
if (strcmp(attr[n].name, name))
|
|
return((const char *) attr[n].value);
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
genericGetDist(char *path, struct attribs *dist_attrib)
|
|
{
|
|
int fd;
|
|
char buf[512];
|
|
struct stat sb;
|
|
int pfd[2], pid, numchunks;
|
|
|
|
snprintf(buf, 512, "%s.tgz", path);
|
|
|
|
if (stat(buf, &sb) == 0)
|
|
{
|
|
fd = open(buf, O_RDONLY, 0);
|
|
return(fd);
|
|
}
|
|
|
|
snprintf(buf, 512, "%s.aa", path);
|
|
if (stat(buf, &sb) != 0)
|
|
{
|
|
msgConfirm("Cannot find file(s) for distribution in ``%s''!\n", path);
|
|
return 0;
|
|
}
|
|
|
|
numchunks = atoi(attr_match(dist_attrib, "pieces"));
|
|
pipe(pfd);
|
|
pid = fork();
|
|
if (!pid)
|
|
{
|
|
caddr_t memory;
|
|
int chunk = 0;
|
|
|
|
dup2(pfd[1], 1); close(pfd[1]);
|
|
close(pfd[0]);
|
|
|
|
while (chunk < numchunks)
|
|
{
|
|
int fd;
|
|
|
|
snprintf(buf, 512, "%s.%c%c", path, (chunk / 26), (chunk % 26));
|
|
if ((fd = open(buf, O_RDONLY)) == NULL)
|
|
msgFatal("Cannot find file `%s'!\n", buf);
|
|
|
|
fstat(fd, &sb);
|
|
memory = mmap(0, sb.st_size, PROT_READ, MAP_SHARED, fd, (off_t) 0);
|
|
if (memory == (caddr_t) -1)
|
|
msgFatal("mmap error: %s\n", strerror(errno));
|
|
|
|
write(1, memory, sb.st_size);
|
|
munmap(memory, sb.st_size);
|
|
++chunk;
|
|
}
|
|
}
|
|
close(pfd[1]);
|
|
return(pfd[0]);
|
|
}
|
|
|
|
/* Various media "strategy" routines */
|
|
|
|
Boolean
|
|
mediaInitCDROM(Device *dev)
|
|
{
|
|
struct iso_args args;
|
|
struct stat sb;
|
|
|
|
if (Mkdir("/mnt/cdrom", NULL))
|
|
return FALSE;
|
|
|
|
args.fspec = dev->devname;
|
|
if (mount(MOUNT_CD9660, "/mnt/cdrom", 0, (caddr_t) &args) == -1)
|
|
{
|
|
msgConfirm("Error mounting %s on /mnt/cdrom: %s\n",
|
|
dev, strerror(errno));
|
|
return FALSE;
|
|
}
|
|
|
|
/* Do a very simple check to see if this looks roughly like a 2.0.5 CDROM
|
|
Unfortunately FreeBSD won't let us read the ``label'' AFAIK, which is one
|
|
sure way of telling the disc version :-( */
|
|
if (stat("/mnt/cdrom/dists", &sb))
|
|
{
|
|
if (errno == ENOENT)
|
|
{
|
|
msgConfirm("Couldn't locate the directory `dists' on the cdrom\n\
|
|
Is this a 2.0.5 CDROM?\n");
|
|
return FALSE;
|
|
} else {
|
|
msgConfirm("Couldn't stat directory %s: %s", "/mnt/cdrom/dists", strerror(errno));
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
Boolean
|
|
mediaGetCDROM(char *dist)
|
|
{
|
|
char buf[PATH_MAX];
|
|
struct attribs *dist_attr;
|
|
|
|
dist_attr = safe_malloc(sizeof(struct attribs) * MAX_ATTRIBS);
|
|
|
|
snprintf(buf, PATH_MAX, "/mnt/stand/info/%s.inf", dist);
|
|
if (attr_parse(&dist_attr, buf) == 0)
|
|
{
|
|
msgConfirm("Cannot load information file for distribution\n");
|
|
return FALSE;
|
|
}
|
|
|
|
snprintf(buf, PATH_MAX, "/mnt/cdrom/%s", dist);
|
|
|
|
return genericGetDist(buf, dist_attr);
|
|
}
|
|
|
|
void
|
|
mediaCloseCDROM(Device *dev)
|
|
{
|
|
if (unmount("/mnt/cdrom", 0) != 0)
|
|
msgConfirm("Could not unmount the CDROM: %s\n", strerror(errno));
|
|
|
|
return;
|
|
}
|
|
|
|
Boolean
|
|
mediaInitFloppy(Device *dev)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
Boolean
|
|
mediaGetFloppy(char *dist)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
mediaCloseFloppy(Device *dev)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Boolean
|
|
mediaInitTape(Device *dev)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
Boolean
|
|
mediaGetTape(char *dist)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
mediaCloseTape(Device *dev)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Boolean
|
|
mediaInitNetwork(Device *dev)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
Boolean
|
|
mediaGetNetwork(char *dist)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
mediaCloseNetwork(Device *dev)
|
|
{
|
|
}
|
|
|
|
Boolean
|
|
mediaInitUFS(Device *dev)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
Boolean
|
|
mediaGetUFS(char *dist)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
/* UFS has no close routine since this is handled at the device level */
|
|
|
|
|
|
Boolean
|
|
mediaInitDOS(Device *dev)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
Boolean
|
|
mediaGetDOS(char *dist)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
mediaCloseDOS(Device *dev)
|
|
{
|
|
}
|