718 lines
17 KiB
C
718 lines
17 KiB
C
/*
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* The new sysinstall program.
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*
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* This is probably the last attempt in the `sysinstall' line, the next
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* generation being slated to essentially a complete rewrite.
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*
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* $Id: media_strategy.c,v 1.18 1995/05/24 18:21:49 jkh Exp $
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*
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* Copyright (c) 1995
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* Jordan Hubbard. All rights reserved.
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* Copyright (c) 1995
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* Gary J Palmer. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jordan Hubbard
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* for the FreeBSD Project.
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* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <stdio.h>
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#include "sysinstall.h"
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#include <ctype.h>
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#include <sys/stat.h>
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#include <sys/errno.h>
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#include <sys/file.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/param.h>
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#include <sys/dkbad.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include "ftp.h"
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#define MSDOSFS
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#define CD9660
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#define NFS
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#include <sys/mount.h>
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#undef MSDOSFS
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#undef CD9660
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#undef NFS
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#define MAX_ATTRIBS 200
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#define MAX_NAME 511
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#define MAX_VALUE 4095
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struct attribs {
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char *name;
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char *value;
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};
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static int lno;
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static int num_attribs;
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static int
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attr_parse(struct attribs **attr, char *file)
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{
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char hold_n[MAX_NAME+1];
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char hold_v[MAX_VALUE+1];
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int n, v, ch = 0;
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enum { LOOK, COMMENT, NAME, VALUE, COMMIT } state;
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FILE *fp;
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num_attribs = n = v = lno = 0;
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state = LOOK;
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if ((fp=fopen(file, "r")) == NULL)
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{
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msgConfirm("Cannot open the information file `%s': %s (%d)", file, strerror(errno), errno);
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return 0;
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}
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while (state == COMMIT || (ch = fgetc(fp)) != EOF) {
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/* Count lines */
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if (ch == '\n')
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++lno;
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switch(state) {
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case LOOK:
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if (isspace(ch))
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continue;
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/* Allow shell or lisp style comments */
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else if (ch == '#' || ch == ';') {
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state = COMMENT;
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continue;
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}
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else if (isalpha(ch)) {
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hold_n[n++] = ch;
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state = NAME;
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}
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else
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msgFatal("Invalid character '%c' at line %d\n", ch, lno);
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break;
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case COMMENT:
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if (ch == '\n')
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state = LOOK;
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break;
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case NAME:
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if (ch == '\n') {
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hold_n[n] = '\0';
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hold_v[v = 0] = '\0';
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state = COMMIT;
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}
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else if (isspace(ch))
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continue;
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else if (ch == '=') {
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hold_n[n] = '\0';
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state = VALUE;
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}
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else
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hold_n[n++] = ch;
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break;
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case VALUE:
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if (v == 0 && isspace(ch))
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continue;
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else if (ch == '{') {
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/* multiline value */
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while ((ch = fgetc(fp)) != '}') {
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if (ch == EOF)
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msgFatal("Unexpected EOF on line %d", lno);
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else {
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if (v == MAX_VALUE)
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msgFatal("Value length overflow at line %d", lno);
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hold_v[v++] = ch;
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}
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}
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hold_v[v] = '\0';
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state = COMMIT;
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}
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else if (ch == '\n') {
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hold_v[v] = '\0';
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state = COMMIT;
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}
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else {
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if (v == MAX_VALUE)
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msgFatal("Value length overflow at line %d", lno);
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else
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hold_v[v++] = ch;
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}
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break;
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case COMMIT:
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(*attr)[num_attribs].name = strdup(hold_n);
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(*attr)[num_attribs++].value = strdup(hold_v);
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state = LOOK;
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v = n = 0;
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break;
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default:
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msgFatal("Unknown state at line %d??\n", lno);
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}
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}
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fclose(fp);
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return 1;
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}
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static const char *
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attr_match(struct attribs *attr, char *name)
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{
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int n = 0;
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while((strcasecmp(attr[n].name, name)!=0) && (n < num_attribs) && (n < 20))
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n++;
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if (strcasecmp(attr[n].name, name)==0)
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return((const char *) attr[n].value);
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return NULL;
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}
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static pid_t getDistpid = 0;
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static int
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genericGetDist(char *path, struct attribs *dist_attrib)
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{
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int fd;
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char buf[512];
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struct stat sb;
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int pfd[2], numchunks;
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const char *tmp;
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snprintf(buf, 512, "%s.tgz", path);
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if (stat(buf, &sb) == 0)
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{
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fd = open(buf, O_RDONLY, 0);
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return(fd);
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}
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snprintf(buf, 512, "%s.aa", path);
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if (stat(buf, &sb) != 0)
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{
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msgConfirm("Cannot find file(s) for distribution in ``%s''!\n", path);
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return -1;
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}
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tmp = attr_match(dist_attrib, "pieces");
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numchunks = atoi(tmp);
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/* reap the previous child corpse - yuck! */
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if (getDistpid) {
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int i, j;
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i = waitpid(getDistpid, &j, 0);
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if (i < 0 || WEXITSTATUS(j)) {
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msgNotify("Warning: Previous extraction returned status code %d.", WEXITSTATUS(j));
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getDistpid = 0;
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return -1;
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}
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getDistpid = 0;
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}
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msgDebug("Attempting to extract distribution from %u files\n", numchunks);
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pipe(pfd);
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getDistpid = fork();
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if (!getDistpid) {
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caddr_t memory;
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int chunk;
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int retval;
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dup2(pfd[1], 1); close(pfd[1]);
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close(pfd[0]);
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for (chunk = 0; chunk < numchunks; chunk++) {
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int fd;
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snprintf(buf, 512, "%s.%c%c", path, (chunk / 26) + 'a', (chunk % 26) + 'a');
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if ((fd = open(buf, O_RDONLY)) == -1)
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msgFatal("Cannot find file `%s'!", buf);
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fstat(fd, &sb);
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msgDebug("mmap()ing %s (%d)\n", buf, fd);
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memory = mmap(0, sb.st_size, PROT_READ, MAP_SHARED, fd, (off_t) 0);
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if (memory == (caddr_t) -1)
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msgFatal("mmap error: %s\n", strerror(errno));
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retval = write(1, memory, sb.st_size);
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if (retval != sb.st_size)
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{
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msgConfirm("write didn't write out the complete file!\n(wrote %d bytes of %d bytes)", retval, sb.st_size);
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exit(1);
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}
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retval = munmap(memory, sb.st_size);
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if (retval != 0)
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{
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msgConfirm("munmap() returned %d", retval);
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exit(1);
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}
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close(fd);
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}
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close(1);
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msgDebug("Extract of %s finished!!!\n", path);
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exit(0);
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}
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close(pfd[1]);
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return(pfd[0]);
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}
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/* Various media "strategy" routines */
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static Boolean cdromMounted;
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Boolean
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mediaInitCDROM(Device *dev)
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{
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struct iso_args args;
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struct stat sb;
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if (cdromMounted)
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return TRUE;
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if (Mkdir("/cdrom", NULL))
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return FALSE;
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args.fspec = dev->devname;
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args.flags = 0;
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if (mount(MOUNT_CD9660, "/cdrom", MNT_RDONLY, (caddr_t) &args) == -1)
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{
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msgConfirm("Error mounting %s on /cdrom: %s (%u)\n",
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dev, strerror(errno), errno);
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return FALSE;
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}
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/* Do a very simple check to see if this looks roughly like a 2.0.5 CDROM
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Unfortunately FreeBSD won't let us read the ``label'' AFAIK, which is one
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sure way of telling the disc version :-( */
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if (stat("/cdrom/dists", &sb))
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{
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if (errno == ENOENT)
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{
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msgConfirm("Couldn't locate the directory `dists' on the cdrom\n\
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Is this a 2.0.5 CDROM?\n");
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return FALSE;
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} else {
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msgConfirm("Couldn't stat directory %s: %s", "/cdrom/dists", strerror(errno));
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return FALSE;
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}
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}
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cdromMounted = TRUE;
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return TRUE;
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}
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int
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mediaGetCDROM(char *dist)
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{
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char buf[PATH_MAX];
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struct attribs *dist_attr;
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int retval;
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dist_attr = safe_malloc(sizeof(struct attribs) * MAX_ATTRIBS);
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snprintf(buf, PATH_MAX, "/stand/info/%s.inf", dist);
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if (attr_parse(&dist_attr, buf) == 0)
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{
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msgConfirm("Cannot load information file for %s distribution!\nPlease verify that your media is valid and try again.", dist);
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return FALSE;
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}
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snprintf(buf, PATH_MAX, "/cdrom/dists/%s", dist);
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retval = genericGetDist(buf, dist_attr);
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free(dist_attr);
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return retval;
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}
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void
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mediaShutdownCDROM(Device *dev)
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{
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msgDebug("In mediaShutdownCDROM\n");
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if (getDistpid) {
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int i, j;
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i = waitpid(getDistpid, &j, 0);
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if (i < 0 || WEXITSTATUS(j)) {
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msgConfirm("Warning: Last extraction returned status code %d.", WEXITSTATUS(j));
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getDistpid = 0;
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}
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getDistpid = 0;
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}
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if (unmount("/cdrom", 0) != 0)
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msgConfirm("Could not unmount the CDROM: %s\n", strerror(errno));
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msgDebug("Unmount returned\n");
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cdromMounted = FALSE;
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return;
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}
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Boolean
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mediaInitFloppy(Device *dev)
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{
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if (Mkdir("/mnt", NULL))
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return FALSE;
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return TRUE;
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}
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int
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mediaGetFloppy(char *dist)
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{
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char buf[PATH_MAX];
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struct attribs *dist_attr;
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int retval;
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dist_attr = safe_malloc(sizeof(struct attribs) * MAX_ATTRIBS);
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snprintf(buf, PATH_MAX, "/stand/info/%s.inf", dist);
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if (attr_parse(&dist_attr, buf) == 0)
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{
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msgConfirm("Cannot load information file for %s distribution!\nPlease verify that your media is valid and try again.", dist);
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return FALSE;
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}
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snprintf(buf, PATH_MAX, "/mnt/%s", dist);
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retval = genericGetDist(buf, dist_attr);
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free(dist_attr);
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return retval;
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}
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void
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mediaShutdownFloppy(Device *dev)
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{
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return;
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}
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Boolean
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mediaInitTape(Device *dev)
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{
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return TRUE;
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}
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static Boolean networkInitialized;
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Boolean
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mediaInitNetwork(Device *dev)
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{
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int i;
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char *rp;
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if (networkInitialized)
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return TRUE;
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configResolv();
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if (!strncmp("cuaa", dev->name, 4)) {
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if (tcpStartPPP()) {
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msgConfirm("You have selected a serial device as your network installation device.\nThe PPP dialer is now running on the 3rd screen (type ALT-F3 to interact\nwith it) and should be used to establish the link BEFORE YOU HIT RETURN\nhere! Once you hit return in this screen (type ALT-F1 to return to this\nscreen from the PPP screen) the installation will assume that your link\nis set up and begin transfering the distributions over PPP.");
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}
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else {
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msgConfirm("Unable to start PPP! This installation method\ncannot be used.");
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return FALSE;
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}
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}
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else {
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char *cp, ifconfig[64];
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snprintf(ifconfig, 64, "%s%s", VAR_IFCONFIG, dev->name);
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cp = getenv(ifconfig);
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if (!cp) {
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msgConfirm("The %s device is not configured. You will need to do so\nin the Networking configuration menu before proceeding.");
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return FALSE;
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}
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i = vsystem("ifconfig %s %s", dev->name, cp);
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if (i) {
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msgConfirm("Unable to configure the %s interface!\nThis installation method cannot be used.", dev->name);
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return FALSE;
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}
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}
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rp = getenv(VAR_GATEWAY);
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if (!rp)
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msgConfirm("No gateway has been set. You will not be able to access hosts\n
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not on the local network\n");
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else
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vsystem("route add default %s", rp);
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networkInitialized = TRUE;
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return TRUE;
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}
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int
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mediaGetTape(char *dist)
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{
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return -1;
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}
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void
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mediaShutdownTape(Device *dev)
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{
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return;
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}
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void
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mediaShutdownNetwork(Device *dev)
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{
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char *cp;
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if (!networkInitialized)
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return;
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if (!strncmp("cuaa", dev->name, 4)) {
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msgConfirm("You may now go to the 3rd screen (ALT-F3) and shut down\nyour PPP connection. It shouldn't be needed any longer\n(unless you wish to create a shell by typing ESC and\nexperiment with it further, in which case go right ahead!)");
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return;
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}
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else {
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int i;
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char ifconfig[64];
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snprintf(ifconfig, 64, "%s%s", VAR_IFCONFIG, dev->name);
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cp = getenv(ifconfig);
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if (!cp)
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return;
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i = vsystem("ifconfig %s down", dev->name);
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if (i)
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msgConfirm("Warning: Unable to down the %s interface properly", dev->name);
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}
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cp = getenv(VAR_GATEWAY);
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if (cp)
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vsystem("route delete default");
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networkInitialized = FALSE;
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}
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static FTP_t ftp;
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Boolean
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mediaInitFTP(Device *dev)
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{
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int i;
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char *url, *hostname, *dir;
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char *my_name, email[BUFSIZ];
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Device *netDevice = (Device *)dev->private;
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if (netDevice->init)
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(*netDevice->init)(netDevice);
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if ((ftp = FtpInit()) == NULL) {
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msgConfirm("FTP initialisation failed!");
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return FALSE;
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}
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url = getenv("ftp");
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if (!url)
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return FALSE;
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if (!strcmp(url, "other")) {
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url = msgGetInput(NULL, "Please specify the URL of a FreeBSD distribution on a\nremote ftp site. This site must accept anonymous ftp!");
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if (!url)
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return FALSE;
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}
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my_name = getenv(VAR_HOSTNAME);
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if (strncmp("ftp://", url, 6) != NULL) {
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msgConfirm("Invalid URL (`%s') passed to FTP routines!\n(must start with `ftp://')", url);
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return FALSE;
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}
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msgDebug("Using URL `%s'\n", url);
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hostname = url + 6;
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dir = index(hostname, '/');
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*(dir++) = '\0';
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msgDebug("hostname = `%s'\n", hostname);
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msgDebug("dir = `%s'\n", dir);
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msgNotify("Looking up host %s..", hostname);
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if ((gethostbyname(hostname) == NULL) && (inet_addr(hostname) == INADDR_NONE)) {
|
|
msgConfirm("Cannot resolve hostname `%s'! Are you sure your name server\nand/or gateway values are set properly?", hostname);
|
|
return FALSE;
|
|
}
|
|
|
|
snprintf(email, BUFSIZ, "installer@%s", my_name);
|
|
msgDebug("Using fake e-mail `%s'\n", email);
|
|
|
|
msgNotify("Logging in as anonymous.");
|
|
if ((i = FtpOpen(ftp, hostname, "anonymous", email)) != 0) {
|
|
msgConfirm("Couldn't open FTP connection to %s: %s (%u)\n", hostname, strerror(i), i);
|
|
return FALSE;
|
|
}
|
|
|
|
if (getenv("ftpPassive"))
|
|
FtpPassive(ftp, 1);
|
|
FtpBinary(ftp, 1);
|
|
if (*dir != '\0') {
|
|
msgNotify("CD to distribution in ~ftp/%s", dir);
|
|
FtpChdir(ftp, dir);
|
|
}
|
|
msgDebug("leaving mediaInitFTP!\n");
|
|
return TRUE;
|
|
}
|
|
|
|
static pid_t ftppid = 0;
|
|
|
|
int
|
|
mediaGetFTP(char *dist)
|
|
{
|
|
int fd;
|
|
char buf[512];
|
|
int pfd[2], numchunks;
|
|
const char *tmp;
|
|
struct attribs *dist_attr;
|
|
|
|
msgNotify("Attempting to retreive distribution `%s' over FTP", dist);
|
|
dist_attr = safe_malloc(sizeof(struct attribs) * MAX_ATTRIBS);
|
|
|
|
snprintf(buf, PATH_MAX, "/stand/info/%s.inf", dist);
|
|
|
|
msgDebug("Parsing attributes file for %s\n", dist);
|
|
if (attr_parse(&dist_attr, buf) == 0)
|
|
{
|
|
msgConfirm("Cannot load information file for %s distribution!\nPlease verify that your media is valid and try again.", dist);
|
|
return -1;
|
|
}
|
|
|
|
msgDebug("Looking for attribute `pieces'\n");
|
|
tmp = attr_match(dist_attr, "pieces");
|
|
numchunks = atoi(tmp);
|
|
msgDebug("Attempting to extract distribution from %u files\n", numchunks);
|
|
|
|
if (numchunks == 1)
|
|
{
|
|
snprintf(buf, 512, "%s.aa", dist);
|
|
return(FtpGet(ftp, buf));
|
|
}
|
|
|
|
/* reap the previous child corpse - yuck! */
|
|
if (ftppid) {
|
|
int i, j;
|
|
|
|
i = waitpid(ftppid, &j, 0);
|
|
if (i < 0 || WEXITSTATUS(j)) {
|
|
msgConfirm("Previous FTP transaction returned status code %d - aborting\ntransfer.", WEXITSTATUS(j));
|
|
ftppid = 0;
|
|
return -1;
|
|
}
|
|
ftppid = 0;
|
|
}
|
|
pipe(pfd);
|
|
ftppid = fork();
|
|
if (!ftppid) {
|
|
int chunk;
|
|
int retval;
|
|
|
|
dup2(pfd[1], 1); close(pfd[1]);
|
|
close(pfd[0]);
|
|
|
|
for (chunk = 0; chunk < numchunks; chunk++) {
|
|
char buffer[10240];
|
|
int n;
|
|
|
|
snprintf(buf, 512, "%s.%c%c", dist, (chunk / 26) + 'a', (chunk % 26) + 'a');
|
|
fd = FtpGet(ftp, buf);
|
|
|
|
if (fd < 0)
|
|
{
|
|
msgConfirm("FtpGet failed to retreive piece `%s' in the %s distribution!\nAborting the transfer", chunk, dist);
|
|
exit(1);
|
|
}
|
|
|
|
while ((n = read(fd, buffer, 10240))>0)
|
|
{
|
|
retval = write(1, buffer, n);
|
|
if (retval != n)
|
|
{
|
|
msgConfirm("Write failure on transfer! (wrote %d bytes of %d bytes)", retval, n);
|
|
exit(1);
|
|
}
|
|
|
|
}
|
|
FtpEOF(ftp);
|
|
}
|
|
close(1);
|
|
msgDebug("Extract of %s finished with success!!!\n", dist);
|
|
exit(0);
|
|
}
|
|
close(pfd[1]);
|
|
return(pfd[0]);
|
|
}
|
|
|
|
void
|
|
mediaShutdownFTP(Device *dev)
|
|
{
|
|
Device *netdev = (Device *)dev->private;
|
|
|
|
if (ftp != NULL) {
|
|
FtpClose(ftp);
|
|
ftp = NULL;
|
|
}
|
|
if (ftppid) {
|
|
int i, j;
|
|
|
|
i = waitpid(ftppid, &j, 0);
|
|
if (i < 0 || WEXITSTATUS(j))
|
|
msgConfirm("Warning: Last FTP transaction returned status code %d.", WEXITSTATUS(j));
|
|
ftppid = 0;
|
|
}
|
|
if (netdev->shutdown)
|
|
(*netdev->shutdown)(netdev);
|
|
}
|
|
|
|
Boolean
|
|
mediaInitUFS(Device *dev)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
mediaGetUFS(char *dist)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
/* UFS has no Shutdown routine since this is handled at the device level */
|
|
|
|
|
|
Boolean
|
|
mediaInitDOS(Device *dev)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
mediaGetDOS(char *dist)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
void
|
|
mediaShutdownDOS(Device *dev)
|
|
{
|
|
}
|