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NetBSD/usr.sbin/sysinst/util.c

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/* $NetBSD: util.c,v 1.5 2014/10/14 16:35:20 christos Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
* All rights reserved.
*
* Written by Philip A. Nelson for Piermont Information Systems Inc.
*
* 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.
* 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. The name of Piermont Information Systems Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``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 PIERMONT INFORMATION SYSTEMS INC. 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, 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.
*
*/
/* util.c -- routines that don't really fit anywhere else... */
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <sys/mount.h>
#include <sys/disklabel.h>
#include <sys/dkio.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <isofs/cd9660/iso.h>
#include <curses.h>
#include <err.h>
#include <errno.h>
#include <dirent.h>
#include <util.h>
#include "defs.h"
#include "md.h"
#include "msg_defs.h"
#include "menu_defs.h"
#ifndef MD_SETS_SELECTED
#define MD_SETS_SELECTED SET_KERNEL_1, SET_SYSTEM, SET_X11, SET_MD
#endif
#ifndef MD_SETS_SELECTED_MINIMAL
#define MD_SETS_SELECTED_MINIMAL SET_KERNEL_1, SET_CORE
#endif
#ifndef MD_SETS_SELECTED_NOX
#define MD_SETS_SELECTED_NOX SET_KERNEL_1, SET_SYSTEM, SET_MD
#endif
#ifndef MD_SETS_VALID
#define MD_SETS_VALID SET_KERNEL, SET_SYSTEM, SET_X11, SET_MD, SET_SOURCE, SET_DEBUGGING
#endif
#define MAX_CD_DEVS 256 /* how many cd drives do we expect to attach */
#define ISO_BLKSIZE ISO_DEFAULT_BLOCK_SIZE
static const char *msg_yes, *msg_no, *msg_all, *msg_some, *msg_none;
static const char *msg_cur_distsets_row;
static int select_menu_width;
static uint8_t set_status[SET_GROUP_END];
#define SET_VALID 0x01
#define SET_SELECTED 0x02
#define SET_SKIPPED 0x04
#define SET_INSTALLED 0x08
struct tarstats {
int nselected;
int nfound;
int nnotfound;
int nerror;
int nsuccess;
int nskipped;
} tarstats;
distinfo dist_list[] = {
#ifdef SET_KERNEL_1_NAME
{SET_KERNEL_1_NAME, SET_KERNEL_1, MSG_set_kernel_1, NULL},
#endif
#ifdef SET_KERNEL_2_NAME
{SET_KERNEL_2_NAME, SET_KERNEL_2, MSG_set_kernel_2, NULL},
#endif
#ifdef SET_KERNEL_3_NAME
{SET_KERNEL_3_NAME, SET_KERNEL_3, MSG_set_kernel_3, NULL},
#endif
#ifdef SET_KERNEL_4_NAME
{SET_KERNEL_4_NAME, SET_KERNEL_4, MSG_set_kernel_4, NULL},
#endif
#ifdef SET_KERNEL_5_NAME
{SET_KERNEL_5_NAME, SET_KERNEL_5, MSG_set_kernel_5, NULL},
#endif
#ifdef SET_KERNEL_6_NAME
{SET_KERNEL_6_NAME, SET_KERNEL_6, MSG_set_kernel_6, NULL},
#endif
#ifdef SET_KERNEL_7_NAME
{SET_KERNEL_7_NAME, SET_KERNEL_7, MSG_set_kernel_7, NULL},
#endif
#ifdef SET_KERNEL_8_NAME
{SET_KERNEL_8_NAME, SET_KERNEL_8, MSG_set_kernel_8, NULL},
#endif
#ifdef SET_KERNEL_9_NAME
{SET_KERNEL_9_NAME, SET_KERNEL_9, MSG_set_kernel_9, NULL},
#endif
{"modules", SET_MODULES, MSG_set_modules, NULL},
{"base", SET_BASE, MSG_set_base, NULL},
{"etc", SET_ETC, MSG_set_system, NULL},
{"comp", SET_COMPILER, MSG_set_compiler, NULL},
{"games", SET_GAMES, MSG_set_games, NULL},
{"man", SET_MAN_PAGES, MSG_set_man_pages, NULL},
{"misc", SET_MISC, MSG_set_misc, NULL},
{"tests", SET_TESTS, MSG_set_tests, NULL},
{"text", SET_TEXT_TOOLS, MSG_set_text_tools, NULL},
{NULL, SET_GROUP, MSG_set_X11, NULL},
{"xbase", SET_X11_BASE, MSG_set_X11_base, NULL},
{"xcomp", SET_X11_PROG, MSG_set_X11_prog, NULL},
{"xetc", SET_X11_ETC, MSG_set_X11_etc, NULL},
{"xfont", SET_X11_FONTS, MSG_set_X11_fonts, NULL},
{"xserver", SET_X11_SERVERS, MSG_set_X11_servers, NULL},
{NULL, SET_GROUP_END, NULL, NULL},
#ifdef SET_MD_1_NAME
{SET_MD_1_NAME, SET_MD_1, MSG_set_md_1, NULL},
#endif
#ifdef SET_MD_2_NAME
{SET_MD_2_NAME, SET_MD_2, MSG_set_md_2, NULL},
#endif
#ifdef SET_MD_3_NAME
{SET_MD_3_NAME, SET_MD_3, MSG_set_md_3, NULL},
#endif
#ifdef SET_MD_4_NAME
{SET_MD_4_NAME, SET_MD_4, MSG_set_md_4, NULL},
#endif
{NULL, SET_GROUP, MSG_set_source, NULL},
{"syssrc", SET_SYSSRC, MSG_set_syssrc, NULL},
{"src", SET_SRC, MSG_set_src, NULL},
{"sharesrc", SET_SHARESRC, MSG_set_sharesrc, NULL},
{"gnusrc", SET_GNUSRC, MSG_set_gnusrc, NULL},
{"xsrc", SET_XSRC, MSG_set_xsrc, NULL},
{"debug", SET_DEBUG, MSG_set_debug, NULL},
{"xdebug", SET_X11_DEBUG, MSG_set_xdebug, NULL},
{NULL, SET_GROUP_END, NULL, NULL},
{NULL, SET_LAST, NULL, NULL},
};
#define MAX_CD_INFOS 16 /* how many media can be found? */
struct cd_info {
char device_name[16];
char menu[100];
};
static struct cd_info cds[MAX_CD_INFOS];
/*
* local prototypes
*/
static int check_for(unsigned int mode, const char *pathname);
static int get_iso9660_volname(int dev, int sess, char *volname);
static int get_available_cds(void);
void
init_set_status(int flags)
{
static const uint8_t sets_valid[] = {MD_SETS_VALID};
static const uint8_t sets_selected_full[] = {MD_SETS_SELECTED};
static const uint8_t sets_selected_minimal[] = {MD_SETS_SELECTED_MINIMAL};
static const uint8_t sets_selected_nox[] = {MD_SETS_SELECTED_NOX};
static const uint8_t *sets_selected;
unsigned int nelem_selected;
unsigned int i, len;
const char *longest;
if (flags & SFLAG_MINIMAL) {
sets_selected = sets_selected_minimal;
nelem_selected = nelem(sets_selected_minimal);
} else if (flags & SFLAG_NOX) {
sets_selected = sets_selected_nox;
nelem_selected = nelem(sets_selected_nox);
} else {
sets_selected = sets_selected_full;
nelem_selected = nelem(sets_selected_full);
}
for (i = 0; i < nelem(sets_valid); i++)
set_status[sets_valid[i]] = SET_VALID;
for (i = 0; i < nelem_selected; i++)
set_status[sets_selected[i]] |= SET_SELECTED;
set_status[SET_GROUP] = SET_VALID;
/* Lookup some strings we need lots of times */
msg_yes = msg_string(MSG_Yes);
msg_no = msg_string(MSG_No);
msg_all = msg_string(MSG_All);
msg_some = msg_string(MSG_Some);
msg_none = msg_string(MSG_None);
msg_cur_distsets_row = msg_string(MSG_cur_distsets_row);
/* Find longest and use it to determine width of selection menu */
len = strlen(msg_no); longest = msg_no;
i = strlen(msg_yes); if (i > len) {len = i; longest = msg_yes; }
i = strlen(msg_all); if (i > len) {len = i; longest = msg_all; }
i = strlen(msg_some); if (i > len) {len = i; longest = msg_some; }
i = strlen(msg_none); if (i > len) {len = i; longest = msg_none; }
select_menu_width = snprintf(NULL, 0, msg_cur_distsets_row, "",longest);
/* Give the md code a chance to choose the right kernel, etc. */
md_init_set_status(flags);
}
int
dir_exists_p(const char *path)
{
return file_mode_match(path, S_IFDIR);
}
int
file_exists_p(const char *path)
{
return file_mode_match(path, S_IFREG);
}
int
file_mode_match(const char *path, unsigned int mode)
{
struct stat st;
return (stat(path, &st) == 0 && (st.st_mode & S_IFMT) == mode);
}
uint
get_ramsize(void)
{
uint64_t ramsize;
size_t len = sizeof ramsize;
int mib[2] = {CTL_HW, HW_PHYSMEM64};
sysctl(mib, 2, &ramsize, &len, NULL, 0);
/* Find out how many Megs ... round up. */
return (ramsize + MEG - 1) / MEG;
}
void
run_makedev(void)
{
char *owd;
msg_display_add("\n\n");
msg_display_add(MSG_makedev);
owd = getcwd(NULL, 0);
/* make /dev, in case the user didn't extract it. */
make_target_dir("/dev");
target_chdir_or_die("/dev");
run_program(0, "/bin/sh MAKEDEV all");
chdir(owd);
free(owd);
}
/*
* Performs in-place replacement of a set of patterns in a file that lives
* inside the installed system. The patterns must be separated by a semicolon.
* For example:
*
* replace("/etc/some-file.conf", "s/prop1=NO/prop1=YES/;s/foo/bar/");
*/
void
replace(const char *path, const char *patterns, ...)
{
char *spatterns;
va_list ap;
va_start(ap, patterns);
vasprintf(&spatterns, patterns, ap);
va_end(ap);
if (spatterns == NULL)
err(1, "vasprintf(&spatterns, \"%s\", ...)", patterns);
run_program(RUN_CHROOT, "sed -an -e '%s;H;$!d;g;w %s' %s", spatterns,
path, path);
free(spatterns);
}
static int
floppy_fetch(const char *set_name)
{
char post[4];
msg errmsg;
int menu;
int status;
const char *write_mode = ">";
strcpy(post, "aa");
errmsg = "";
menu = MENU_fdok;
for (;;) {
umount_mnt2();
msg_display(errmsg);
msg_display_add(MSG_fdmount, set_name, post);
process_menu(menu, &status);
if (status != SET_CONTINUE)
return status;
menu = MENU_fdremount;
errmsg = MSG_fdremount;
if (run_program(0, "/sbin/mount -r -t %s %s /mnt2",
fd_type, fd_dev))
continue;
mnt2_mounted = 1;
errmsg = MSG_fdnotfound;
/* Display this because it might take a while.... */
if (run_program(RUN_DISPLAY,
"sh -c '/bin/cat /mnt2/%s.%s %s %s/%s/%s%s'",
set_name, post, write_mode,
target_prefix(), xfer_dir, set_name, dist_postfix))
/* XXX: a read error will give a corrupt file! */
continue;
/* We got that file, advance to next fragment */
if (post[1] < 'z')
post[1]++;
else
post[1] = 'a', post[0]++;
write_mode = ">>";
errmsg = "";
menu = MENU_fdok;
}
}
/*
* Load files from floppy. Requires a /mnt2 directory for mounting them.
*/
int
get_via_floppy(void)
{
yesno = -1;
process_menu(MENU_floppysource, NULL);
if (yesno == SET_RETRY)
return SET_RETRY;
fetch_fn = floppy_fetch;
/* Set ext_dir for absolute path. */
snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", target_prefix(), xfer_dir);
snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", target_prefix(), xfer_dir);
return SET_OK;
}
/*
* Get the volume name of a ISO9660 file system
*/
static int
get_iso9660_volname(int dev, int sess, char *volname)
{
int blkno, error, last;
char buf[ISO_BLKSIZE];
struct iso_volume_descriptor *vd = NULL;
struct iso_primary_descriptor *pd = NULL;
for (blkno = sess+16; blkno < sess+16+100; blkno++) {
error = pread(dev, buf, ISO_BLKSIZE, blkno*ISO_BLKSIZE);
if (error == -1)
return -1;
vd = (struct iso_volume_descriptor *)&buf;
if (memcmp(vd->id, ISO_STANDARD_ID, sizeof(vd->id)) != 0)
return -1;
if (isonum_711((const unsigned char *)&vd->type)
== ISO_VD_PRIMARY) {
pd = (struct iso_primary_descriptor*)buf;
strncpy(volname, pd->volume_id, sizeof pd->volume_id);
last = sizeof pd->volume_id-1;
while (last >= 0
&& (volname[last] == ' ' || volname[last] == 0))
last--;
volname[last+1] = 0;
return 0;
}
}
return -1;
}
/*
* Get a list of all available CD media (not drives!), return
* the number of entries collected.
*/
static int
get_available_cds(void)
{
char dname[16], volname[80];
struct cd_info *info = cds;
struct disklabel label;
int i, part, dev, error, sess, ready, count = 0;
for (i = 0; i < MAX_CD_DEVS; i++) {
sprintf(dname, "/dev/rcd%d%c", i, 'a'+RAW_PART);
dev = open(dname, O_RDONLY, 0);
if (dev == -1)
break;
ready = 0;
error = ioctl(dev, DIOCTUR, &ready);
if (error != 0 || ready == 0) {
close(dev);
continue;
}
error = ioctl(dev, DIOCGDINFO, &label);
close(dev);
if (error == 0) {
for (part = 0; part < label.d_npartitions; part++) {
if (label.d_partitions[part].p_fstype
== FS_UNUSED
|| label.d_partitions[part].p_size == 0)
continue;
if (label.d_partitions[part].p_fstype
== FS_ISO9660) {
sess = label.d_partitions[part]
.p_cdsession;
sprintf(dname, "/dev/rcd%d%c", i,
'a'+part);
dev = open(dname, O_RDONLY, 0);
if (dev == -1)
continue;
error = get_iso9660_volname(dev, sess,
volname);
close(dev);
if (error) continue;
sprintf(info->device_name, "cd%d%c",
i, 'a'+part);
sprintf(info->menu, "%s (%s)",
info->device_name,
volname);
} else {
/*
* All install CDs use partition
* a for the sets.
*/
if (part > 0)
continue;
sprintf(info->device_name, "cd%d%c",
i, 'a'+part);
strcpy(info->menu, info->device_name);
}
info++;
if (++count >= MAX_CD_INFOS)
break;
}
}
}
return count;
}
static int
cd_has_sets(void)
{
/* Mount it */
if (run_program(RUN_SILENT, "/sbin/mount -rt cd9660 /dev/%s /mnt2",
cdrom_dev) != 0)
return 0;
mnt2_mounted = 1;
snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", "/mnt2", set_dir_bin);
snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", "/mnt2", set_dir_src);
return dir_exists_p(ext_dir_bin);
}
/*
* Check whether we can remove the boot media.
* If it is not a local filesystem, return -1.
* If we can not decide for sure (can not tell MD content from plain ffs
* on hard disk, for example), return 0.
* If it is a CD/DVD, return 1.
*/
int
boot_media_still_needed(void)
{
struct statvfs sb;
if (statvfs("/", &sb) == 0) {
if (!(sb.f_flag & ST_LOCAL))
return -1;
if (strcmp(sb.f_fstypename, MOUNT_CD9660) == 0
|| strcmp(sb.f_fstypename, MOUNT_UDF) == 0)
return 1;
}
return 0;
}
/*
* Get from a CDROM distribution.
* Also used on "installation using bootable install media"
* as the default option in the "distmedium" menu.
*/
int
get_via_cdrom(void)
{
menu_ent cd_menu[MAX_CD_INFOS];
struct stat sb;
int num_cds, menu_cd, i, selected_cd = 0;
bool silent = false;
int mib[2];
char rootdev[SSTRSIZE] = "";
size_t varlen;
/* If root is not md(4) and we have set dir, skip this step. */
mib[0] = CTL_KERN;
mib[1] = KERN_ROOT_DEVICE;
varlen = sizeof(rootdev);
(void)sysctl(mib, 2, rootdev, &varlen, NULL, 0);
if (stat(set_dir_bin, &sb) == 0 && S_ISDIR(sb.st_mode) &&
strncmp("md", rootdev, 2) != 0) {
strlcpy(ext_dir_bin, set_dir_bin, sizeof ext_dir_bin);
strlcpy(ext_dir_src, set_dir_src, sizeof ext_dir_src);
return SET_OK;
}
num_cds = get_available_cds();
if (num_cds <= 0) {
silent = true;
} else if (num_cds == 1) {
/* single CD found, check for sets on it */
strcpy(cdrom_dev, cds[0].device_name);
if (cd_has_sets())
return SET_OK;
} else {
for (i = 0; i< num_cds; i++) {
cd_menu[i].opt_name = cds[i].menu;
cd_menu[i].opt_menu = OPT_NOMENU;
cd_menu[i].opt_flags = OPT_EXIT;
cd_menu[i].opt_action = set_menu_select;
}
/* create a menu offering available choices */
menu_cd = new_menu(MSG_Available_cds,
cd_menu, num_cds, -1, 4, 0, 0,
MC_SCROLL | MC_NOEXITOPT,
NULL, NULL, NULL, NULL, NULL);
if (menu_cd == -1)
return SET_RETRY;
msg_display(MSG_ask_cd);
process_menu(menu_cd, &selected_cd);
free_menu(menu_cd);
strcpy(cdrom_dev, cds[selected_cd].device_name);
if (cd_has_sets())
return SET_OK;
}
if (silent)
msg_display("");
else {
umount_mnt2();
msg_display(MSG_cd_path_not_found);
process_menu(MENU_ok, NULL);
}
/* ask for paths on the CD */
yesno = -1;
process_menu(MENU_cdromsource, NULL);
if (yesno == SET_RETRY)
return SET_RETRY;
if (cd_has_sets())
return SET_OK;
return SET_RETRY;
}
/*
* Get from a pathname inside an unmounted local filesystem
* (e.g., where sets were preloaded onto a local DOS partition)
*/
int
get_via_localfs(void)
{
/* Get device, filesystem, and filepath */
yesno = -1;
process_menu (MENU_localfssource, NULL);
if (yesno == SET_RETRY)
return SET_RETRY;
/* Mount it */
if (run_program(0, "/sbin/mount -rt %s /dev/%s /mnt2",
localfs_fs, localfs_dev))
return SET_RETRY;
mnt2_mounted = 1;
snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s/%s",
"/mnt2", localfs_dir, set_dir_bin);
snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s/%s",
"/mnt2", localfs_dir, set_dir_src);
return SET_OK;
}
/*
* Get from an already-mounted pathname.
*/
int
get_via_localdir(void)
{
/* Get filepath */
yesno = -1;
process_menu(MENU_localdirsource, NULL);
if (yesno == SET_RETRY)
return SET_RETRY;
/*
* We have to have an absolute path ('cos pax runs in a
* different directory), make it so.
*/
snprintf(ext_dir_bin, sizeof ext_dir_bin, "/%s/%s", localfs_dir, set_dir_bin);
snprintf(ext_dir_src, sizeof ext_dir_src, "/%s/%s", localfs_dir, set_dir_src);
return SET_OK;
}
/*
* Support for custom distribution fetches / unpacks.
*/
unsigned int
set_X11_selected(void)
{
int i;
for (i = SET_X11_FIRST; ++i < SET_X11_LAST;)
if (set_status[i] & SET_SELECTED)
return 1;
return 0;
}
unsigned int
get_kernel_set(void)
{
int i;
for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
if (set_status[i] & SET_SELECTED)
return i;
return SET_NONE;
}
void
set_kernel_set(unsigned int kernel_set)
{
int i;
/* only one kernel set is allowed */
for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
set_status[i] &= ~SET_SELECTED;
set_status[kernel_set] |= SET_SELECTED;
}
static int
set_toggle(menudesc *menu, void *arg)
{
distinfo **distp = arg;
int set = distp[menu->cursel]->set;
if (set > SET_KERNEL_FIRST && set < SET_KERNEL_LAST &&
!(set_status[set] & SET_SELECTED))
set_kernel_set(set);
else
set_status[set] ^= SET_SELECTED;
return 0;
}
static int
set_all_none(menudesc *menu, void *arg, int set, int clr)
{
distinfo **distp = arg;
distinfo *dist = *distp;
int nested;
for (nested = 0; dist->set != SET_GROUP_END || nested--; dist++) {
if (dist->set == SET_GROUP) {
nested++;
continue;
}
set_status[dist->set] = (set_status[dist->set] & ~clr) | set;
}
return 0;
}
static int
set_all(menudesc *menu, void *arg)
{
return set_all_none(menu, arg, SET_SELECTED, 0);
}
static int
set_none(menudesc *menu, void *arg)
{
return set_all_none(menu, arg, 0, SET_SELECTED);
}
static void
set_label(menudesc *menu, int opt, void *arg)
{
distinfo **distp = arg;
distinfo *dist = distp[opt];
const char *selected;
const char *desc;
int nested;
desc = dist->desc;
if (dist->set != SET_GROUP)
selected = set_status[dist->set] & SET_SELECTED ? msg_yes : msg_no;
else {
/* sub menu - display None/Some/All */
nested = 0;
selected = "unknown";
while ((++dist)->set != SET_GROUP_END || nested--) {
if (dist->set == SET_GROUP) {
nested++;
continue;
}
if (!(set_status[dist->set] & SET_VALID))
continue;
if (set_status[dist->set] & SET_SELECTED) {
if (selected == msg_none) {
selected = msg_some;
break;
}
selected = msg_all;
} else {
if (selected == msg_all) {
selected = msg_some;
break;
}
selected = msg_none;
}
}
}
wprintw(menu->mw, msg_cur_distsets_row, msg_string(desc), selected);
}
static int set_sublist(menudesc *menu, void *arg);
static int
initialise_set_menu(distinfo *dist, menu_ent *me, distinfo **de, int all_none)
{
int set;
int sets;
int nested;
for (sets = 0; ; dist++) {
set = dist->set;
if (set == SET_LAST || set == SET_GROUP_END)
break;
if (!(set_status[set] & SET_VALID))
continue;
*de = dist;
me->opt_menu = OPT_NOMENU;
me->opt_flags = 0;
me->opt_name = NULL;
if (set != SET_GROUP)
me->opt_action = set_toggle;
else {
/* Collapse sublist */
nested = 0;
while ((++dist)->set != SET_GROUP_END || nested--) {
if (dist->set == SET_GROUP)
nested++;
}
me->opt_action = set_sublist;
}
sets++;
de++;
me++;
}
if (all_none) {
me->opt_menu = OPT_NOMENU;
me->opt_flags = 0;
me->opt_name = MSG_select_all;
me->opt_action = set_all;
me++;
me->opt_menu = OPT_NOMENU;
me->opt_flags = 0;
me->opt_name = MSG_select_none;
me->opt_action = set_none;
sets += 2;
}
return sets;
}
static int
set_sublist(menudesc *menu, void *arg)
{
distinfo *de[SET_LAST];
menu_ent me[SET_LAST];
distinfo **dist = arg;
int menu_no;
int sets;
sets = initialise_set_menu(dist[menu->cursel] + 1, me, de, 1);
menu_no = new_menu(NULL, me, sets, 20, 10, 0, select_menu_width,
MC_SUBMENU | MC_SCROLL | MC_DFLTEXIT,
NULL, set_label, NULL, NULL,
MSG_install_selected_sets);
process_menu(menu_no, de);
free_menu(menu_no);
return 0;
}
void
customise_sets(void)
{
distinfo *de[SET_LAST];
menu_ent me[SET_LAST];
int sets;
int menu_no;
msg_display(MSG_cur_distsets);
msg_table_add(MSG_cur_distsets_header);
sets = initialise_set_menu(dist_list, me, de, 0);
menu_no = new_menu(NULL, me, sets, 0, 5, 0, select_menu_width,
MC_SCROLL | MC_NOBOX | MC_DFLTEXIT | MC_NOCLEAR,
NULL, set_label, NULL, NULL,
MSG_install_selected_sets);
process_menu(menu_no, de);
free_menu(menu_no);
}
/*
* Extract_file **REQUIRES** an absolute path in ext_dir. Any code
* that sets up xfer_dir for use by extract_file needs to put in the
* full path name to the directory.
*/
int
extract_file(distinfo *dist, int update)
{
char path[STRSIZE];
char *owd;
int rval;
/* If we might need to tidy up, ensure directory exists */
if (fetch_fn != NULL)
make_target_dir(xfer_dir);
(void)snprintf(path, sizeof path, "%s/%s%s",
ext_dir_for_set(dist->name), dist->name, dist_postfix);
owd = getcwd(NULL, 0);
/* Do we need to fetch the file now? */
if (fetch_fn != NULL) {
rval = fetch_fn(dist->name);
if (rval != SET_OK)
return rval;
}
/* check tarfile exists */
if (!file_exists_p(path)) {
#ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
/*
* Update path to use dist->name truncated to the first eight
* characters and check again
*/
(void)snprintf(path, sizeof path, "%s/%.8s%.4s", /* 4 as includes '.' */
ext_dir_for_set(dist->name), dist->name, dist_postfix);
if (!file_exists_p(path)) {
#endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
tarstats.nnotfound++;
msg_display(MSG_notarfile, path);
process_menu(MENU_ok, NULL);
return SET_RETRY;
}
#ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
}
#endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
tarstats.nfound++;
/* cd to the target root. */
if (update && (dist->set == SET_ETC || dist->set == SET_X11_ETC)) {
make_target_dir("/.sysinst");
target_chdir_or_die("/.sysinst");
} else if (dist->set == SET_PKGSRC)
target_chdir_or_die("/usr");
else
target_chdir_or_die("/");
/*
* /usr/X11R7/lib/X11/xkb/symbols/pc was a directory in 5.0
* but is a file in 5.1 and beyond, so on upgrades we need to
* delete it before extracting the xbase set.
*/
if (update && dist->set == SET_X11_BASE)
run_program(0, "rm -rf usr/X11R7/lib/X11/xkb/symbols/pc");
/* now extract set files into "./". */
rval = run_program(RUN_DISPLAY | RUN_PROGRESS,
"progress -zf %s tar --chroot -xhepf -", path);
chdir(owd);
free(owd);
/* Check rval for errors and give warning. */
if (rval != 0) {
tarstats.nerror++;
msg_display(MSG_tarerror, path);
process_menu(MENU_ok, NULL);
return SET_RETRY;
}
if (fetch_fn != NULL && clean_xfer_dir) {
run_program(0, "rm %s", path);
/* Plausibly we should unlink an empty xfer_dir as well */
}
set_status[dist->set] |= SET_INSTALLED;
tarstats.nsuccess++;
return SET_OK;
}
static void
skip_set(distinfo *dist, int skip_type)
{
int nested;
int set;
nested = 0;
while ((++dist)->set != SET_GROUP_END || nested--) {
set = dist->set;
if (set == SET_GROUP) {
nested++;
continue;
}
if (set == SET_LAST)
break;
if (set_status[set] == (SET_SELECTED | SET_VALID))
set_status[set] |= SET_SKIPPED;
tarstats.nskipped++;
}
}
/*
* Get and unpack the distribution.
* Show success_msg if installation completes.
* Otherwise show failure_msg and wait for the user to ack it before continuing.
* success_msg and failure_msg must both be 0-adic messages.
*/
int
get_and_unpack_sets(int update, msg setupdone_msg, msg success_msg, msg failure_msg)
{
distinfo *dist;
int status;
int set;
/* Ensure mountpoint for distribution files exists in current root. */
(void)mkdir("/mnt2", S_IRWXU| S_IRGRP|S_IXGRP | S_IROTH|S_IXOTH);
if (script)
(void)fprintf(script, "mkdir -m 755 /mnt2\n");
/* reset failure/success counters */
memset(&tarstats, 0, sizeof(tarstats));
/* Find out which files to "get" if we get files. */
/* Accurately count selected sets */
for (dist = dist_list; (set = dist->set) != SET_LAST; dist++) {
if ((set_status[set] & (SET_VALID | SET_SELECTED))
== (SET_VALID | SET_SELECTED))
tarstats.nselected++;
}
status = SET_RETRY;
for (dist = dist_list; ; dist++) {
set = dist->set;
if (set == SET_LAST)
break;
if (dist->name == NULL)
continue;
if (set_status[set] != (SET_VALID | SET_SELECTED))
continue;
if (status != SET_OK) {
/* This might force a redraw.... */
clearok(curscr, 1);
touchwin(stdscr);
wrefresh(stdscr);
/* Sort out the location of the set files */
do {
umount_mnt2();
msg_display(MSG_distmedium, tarstats.nselected,
tarstats.nsuccess + tarstats.nskipped,
dist->name);
fetch_fn = NULL;
process_menu(MENU_distmedium, &status);
} while (status == SET_RETRY);
if (status == SET_SKIP) {
set_status[set] |= SET_SKIPPED;
tarstats.nskipped++;
continue;
}
if (status == SET_SKIP_GROUP) {
skip_set(dist, status);
continue;
}
if (status != SET_OK) {
msg_display(failure_msg);
process_menu(MENU_ok, NULL);
return 1;
}
}
/* Try to extract this set */
status = extract_file(dist, update);
if (status == SET_RETRY)
dist--;
}
if (tarstats.nerror == 0 && tarstats.nsuccess == tarstats.nselected) {
msg_display(MSG_endtarok);
/* Give user a chance to see the success message */
sleep(1);
} else {
/* We encountered errors. Let the user know. */
msg_display(MSG_endtar,
tarstats.nselected, tarstats.nnotfound, tarstats.nskipped,
tarstats.nfound, tarstats.nsuccess, tarstats.nerror);
process_menu(MENU_ok, NULL);
msg_clear();
}
/*
* postinstall needs to be run after extracting all sets, because
* otherwise /var/db/obsolete will only have current information
* from the base, comp, and etc sets.
*/
if (update && (set_status[SET_ETC] & SET_INSTALLED)) {
int oldsendmail;
oldsendmail = run_program(RUN_DISPLAY | RUN_CHROOT |
RUN_ERROR_OK | RUN_PROGRESS,
"/usr/sbin/postinstall -s /.sysinst -d / check mailerconf");
if (oldsendmail == 1) {
msg_display(MSG_oldsendmail);
process_menu(MENU_yesno, NULL);
if (yesno) {
run_program(RUN_DISPLAY | RUN_CHROOT,
"/usr/sbin/postinstall -s /.sysinst -d / fix mailerconf");
}
}
run_program(RUN_DISPLAY | RUN_CHROOT,
"/usr/sbin/postinstall -s /.sysinst -d / fix");
/* Don't discard the system's old entropy if any */
run_program(RUN_CHROOT | RUN_SILENT,
"/etc/rc.d/random_seed start");
}
/* Configure the system */
if (set_status[SET_BASE] & SET_INSTALLED)
run_makedev();
if (!update) {
struct stat sb1, sb2;
if (stat(target_expand("/"), &sb1) == 0
&& stat(target_expand("/var"), &sb2) == 0
&& sb1.st_dev != sb2.st_dev) {
add_rc_conf("random_file=/etc/entropy-file\n");
if (target_file_exists_p("/boot.cfg")) {
run_program(RUN_CHROOT|RUN_FATAL,
"sh -c 'sed -e s./var/db/./etc/. "
"< /boot.cfg "
"> /tmp/boot.cfg.tmp'");
mv_within_target_or_die("/tmp/boot.cfg.tmp",
"/boot.cfg");
}
}
/* Save keyboard type */
save_kb_encoding();
/* Other configuration. */
mnt_net_config();
}
/* Mounted dist dir? */
umount_mnt2();
/* Save entropy -- on some systems it's ~all we'll ever get */
run_program(RUN_DISPLAY | RUN_CHROOT | RUN_FATAL | RUN_PROGRESS,
"/etc/rc.d/random_seed stop");
/* Install/Upgrade complete ... reboot or exit to script */
msg_display(success_msg);
process_menu(MENU_ok, NULL);
return 0;
}
void
umount_mnt2(void)
{
if (!mnt2_mounted)
return;
run_program(RUN_SILENT, "/sbin/umount /mnt2");
mnt2_mounted = 0;
}
/*
* Do a quick sanity check that the target can reboot.
* return 1 if everything OK, 0 if there is a problem.
* Uses a table of files we expect to find after a base install/upgrade.
*/
/* test flag and pathname to check for after unpacking. */
struct check_table { unsigned int mode; const char *path;} checks[] = {
{ S_IFREG, "/netbsd" },
{ S_IFDIR, "/etc" },
{ S_IFREG, "/etc/fstab" },
{ S_IFREG, "/sbin/init" },
{ S_IFREG, "/bin/sh" },
{ S_IFREG, "/etc/rc" },
{ S_IFREG, "/etc/rc.subr" },
{ S_IFREG, "/etc/rc.conf" },
{ S_IFDIR, "/dev" },
{ S_IFCHR, "/dev/console" },
/* XXX check for rootdev in target /dev? */
{ S_IFREG, "/sbin/fsck" },
{ S_IFREG, "/sbin/fsck_ffs" },
{ S_IFREG, "/sbin/mount" },
{ S_IFREG, "/sbin/mount_ffs" },
{ S_IFREG, "/sbin/mount_nfs" },
#if defined(DEBUG) || defined(DEBUG_CHECK)
{ S_IFREG, "/foo/bar" }, /* bad entry to exercise warning */
#endif
{ 0, 0 }
};
/*
* Check target for a single file.
*/
static int
check_for(unsigned int mode, const char *pathname)
{
int found;
found = (target_test(mode, pathname) == 0);
if (found == 0)
msg_display(MSG_rootmissing, pathname);
return found;
}
/*
* Check that all the files in check_table are present in the
* target root. Warn if not found.
*/
int
sanity_check(void)
{
int target_ok = 1;
struct check_table *p;
for (p = checks; p->path; p++) {
target_ok = target_ok && check_for(p->mode, p->path);
}
if (target_ok)
return 0;
/* Uh, oh. Something's missing. */
msg_display(MSG_badroot);
process_menu(MENU_ok, NULL);
return 1;
}
/*
* Some globals to pass things back from callbacks
*/
static char zoneinfo_dir[STRSIZE];
static int zonerootlen;
static char *tz_selected; /* timezonename (relative to share/zoneinfo */
const char *tz_default; /* UTC, or whatever /etc/localtime points to */
static char tz_env[STRSIZE];
static int save_cursel, save_topline;
/*
* Callback from timezone menu
*/
static int
set_tz_select(menudesc *m, void *arg)
{
time_t t;
char *new;
struct tm *tm;
if (m && strcmp(tz_selected, m->opts[m->cursel].opt_name) != 0) {
/* Change the displayed timezone */
new = strdup(m->opts[m->cursel].opt_name);
if (new == NULL)
return 0;
free(tz_selected);
tz_selected = new;
snprintf(tz_env, sizeof tz_env, "%.*s%s",
zonerootlen, zoneinfo_dir, tz_selected);
setenv("TZ", tz_env, 1);
}
if (m)
/* Warp curser to 'Exit' line on menu */
m->cursel = -1;
/* Update displayed time */
t = time(NULL);
tm = localtime(&t);
msg_display(MSG_choose_timezone,
tz_default, tz_selected, safectime(&t), tm ? tm->tm_zone :
"?");
return 0;
}
static int
set_tz_back(menudesc *m, void *arg)
{
zoneinfo_dir[zonerootlen] = 0;
m->cursel = save_cursel;
m->topline = save_topline;
return 0;
}
static int
set_tz_dir(menudesc *m, void *arg)
{
strlcpy(zoneinfo_dir + zonerootlen, m->opts[m->cursel].opt_name,
sizeof zoneinfo_dir - zonerootlen);
save_cursel = m->cursel;
save_topline = m->topline;
m->cursel = 0;
m->topline = 0;
return 0;
}
/*
* Alarm-handler to update example-display
*/
static void
/*ARGSUSED*/
timezone_sig(int sig)
{
set_tz_select(NULL, NULL);
alarm(60);
}
static int
tz_sort(const void *a, const void *b)
{
return strcmp(((const menu_ent *)a)->opt_name, ((const menu_ent *)b)->opt_name);
}
static void
tzm_set_names(menudesc *m, void *arg)
{
DIR *dir;
struct dirent *dp;
static int nfiles;
static int maxfiles = 32;
static menu_ent *tz_menu;
static char **tz_names;
void *p;
int maxfname;
char *fp;
struct stat sb;
if (tz_menu == NULL)
tz_menu = malloc(maxfiles * sizeof *tz_menu);
if (tz_names == NULL)
tz_names = malloc(maxfiles * sizeof *tz_names);
if (tz_menu == NULL || tz_names == NULL)
return; /* error - skip timezone setting */
while (nfiles > 0)
free(tz_names[--nfiles]);
dir = opendir(zoneinfo_dir);
fp = strchr(zoneinfo_dir, 0);
if (fp != zoneinfo_dir + zonerootlen) {
tz_names[0] = 0;
tz_menu[0].opt_name = msg_string(MSG_tz_back);
tz_menu[0].opt_menu = OPT_NOMENU;
tz_menu[0].opt_flags = 0;
tz_menu[0].opt_action = set_tz_back;
nfiles = 1;
}
maxfname = zoneinfo_dir + sizeof zoneinfo_dir - fp - 1;
if (dir != NULL) {
while ((dp = readdir(dir)) != NULL) {
if (dp->d_namlen > maxfname || dp->d_name[0] == '.')
continue;
strlcpy(fp, dp->d_name, maxfname);
if (stat(zoneinfo_dir, &sb) == -1)
continue;
if (nfiles >= maxfiles) {
p = realloc(tz_menu, 2 * maxfiles * sizeof *tz_menu);
if (p == NULL)
break;
tz_menu = p;
p = realloc(tz_names, 2 * maxfiles * sizeof *tz_names);
if (p == NULL)
break;
tz_names = p;
maxfiles *= 2;
}
if (S_ISREG(sb.st_mode))
tz_menu[nfiles].opt_action = set_tz_select;
else if (S_ISDIR(sb.st_mode)) {
tz_menu[nfiles].opt_action = set_tz_dir;
strlcat(fp, "/",
sizeof(zoneinfo_dir) - (fp - zoneinfo_dir));
} else
continue;
tz_names[nfiles] = strdup(zoneinfo_dir + zonerootlen);
tz_menu[nfiles].opt_name = tz_names[nfiles];
tz_menu[nfiles].opt_menu = OPT_NOMENU;
tz_menu[nfiles].opt_flags = 0;
nfiles++;
}
closedir(dir);
}
*fp = 0;
m->opts = tz_menu;
m->numopts = nfiles;
qsort(tz_menu, nfiles, sizeof *tz_menu, tz_sort);
}
void
get_tz_default(void)
{
char localtime_link[STRSIZE];
static char localtime_target[STRSIZE];
int rc;
strlcpy(localtime_link, target_expand("/etc/localtime"),
sizeof localtime_link);
/* Add sanity check that /mnt/usr/share/zoneinfo contains
* something useful
*/
rc = readlink(localtime_link, localtime_target,
sizeof(localtime_target) - 1);
if (rc < 0) {
/* error, default to UTC */
tz_default = "UTC";
} else {
localtime_target[rc] = '\0';
tz_default = strchr(strstr(localtime_target, "zoneinfo"), '/') + 1;
}
}
/*
* Choose from the files in usr/share/zoneinfo and set etc/localtime
*/
int
set_timezone(void)
{
char localtime_link[STRSIZE];
char localtime_target[STRSIZE];
time_t t;
struct tm *tm;
int menu_no;
strlcpy(zoneinfo_dir, target_expand("/usr/share/zoneinfo/"),
sizeof zoneinfo_dir - 1);
zonerootlen = strlen(zoneinfo_dir);
get_tz_default();
tz_selected = strdup(tz_default);
snprintf(tz_env, sizeof(tz_env), "%s%s", zoneinfo_dir, tz_selected);
setenv("TZ", tz_env, 1);
t = time(NULL);
tm = localtime(&t);
msg_display(MSG_choose_timezone,
tz_default, tz_selected, safectime(&t), tm ? tm->tm_zone :
"?");
signal(SIGALRM, timezone_sig);
alarm(60);
menu_no = new_menu(NULL, NULL, 14, 23, 9,
12, 32, MC_ALWAYS_SCROLL | MC_NOSHORTCUT,
tzm_set_names, NULL, NULL,
"\nPlease consult the install documents.", NULL);
if (menu_no < 0)
goto done; /* error - skip timezone setting */
process_menu(menu_no, NULL);
free_menu(menu_no);
signal(SIGALRM, SIG_IGN);
snprintf(localtime_target, sizeof(localtime_target),
"/usr/share/zoneinfo/%s", tz_selected);
strlcpy(localtime_link, target_expand("/etc/localtime"),
sizeof localtime_link);
unlink(localtime_link);
symlink(localtime_target, localtime_link);
done:
return 1;
}
void
scripting_vfprintf(FILE *f, const char *fmt, va_list ap)
{
if (f)
(void)vfprintf(f, fmt, ap);
if (script)
(void)vfprintf(script, fmt, ap);
}
void
scripting_fprintf(FILE *f, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
scripting_vfprintf(f, fmt, ap);
va_end(ap);
}
void
add_rc_conf(const char *fmt, ...)
{
FILE *f;
va_list ap;
va_start(ap, fmt);
f = target_fopen("/etc/rc.conf", "a");
if (f != 0) {
scripting_fprintf(NULL, "cat <<EOF >>%s/etc/rc.conf\n",
target_prefix());
scripting_vfprintf(f, fmt, ap);
fclose(f);
scripting_fprintf(NULL, "EOF\n");
}
va_end(ap);
}
int
del_rc_conf(const char *value)
{
FILE *fp, *nfp;
char buf[4096]; /* Ridiculously high, but should be enough in any way */
char *rcconf, *tempname = NULL, *bakname = NULL;
char *cp;
int done = 0;
int fd;
int retval = 0;
/* The paths might seem strange, but using /tmp would require copy instead
* of rename operations. */
if (asprintf(&rcconf, "%s", target_expand("/etc/rc.conf")) < 0
|| asprintf(&tempname, "%s", target_expand("/etc/rc.conf.tmp.XXXXXX")) < 0
|| asprintf(&bakname, "%s", target_expand("/etc/rc.conf.bak.XXXXXX")) < 0) {
if (rcconf)
free(rcconf);
if (tempname)
free(tempname);
msg_display(MSG_rcconf_delete_failed, value);
process_menu(MENU_ok, NULL);
return -1;
}
if ((fd = mkstemp(bakname)) < 0) {
msg_display(MSG_rcconf_delete_failed, value);
process_menu(MENU_ok, NULL);
return -1;
}
close(fd);
if (!(fp = fopen(rcconf, "r+")) || (fd = mkstemp(tempname)) < 0) {
if (fp)
fclose(fp);
msg_display(MSG_rcconf_delete_failed, value);
process_menu(MENU_ok, NULL);
return -1;
}
nfp = fdopen(fd, "w");
if (!nfp) {
fclose(fp);
close(fd);
msg_display(MSG_rcconf_delete_failed, value);
process_menu(MENU_ok, NULL);
return -1;
}
while (fgets(buf, sizeof buf, fp) != NULL) {
cp = buf + strspn(buf, " \t"); /* Skip initial spaces */
if (strncmp(cp, value, strlen(value)) == 0) {
cp += strlen(value);
if (*cp != '=')
scripting_fprintf(nfp, "%s", buf);
else
done = 1;
} else {
scripting_fprintf(nfp, "%s", buf);
}
}
fclose(fp);
fclose(nfp);
if (done) {
if (rename(rcconf, bakname)) {
msg_display(MSG_rcconf_backup_failed);
process_menu(MENU_noyes, NULL);
if (!yesno) {
retval = -1;
goto done;
}
}
if (rename(tempname, rcconf)) {
if (rename(bakname, rcconf)) {
msg_display(MSG_rcconf_restore_failed);
process_menu(MENU_ok, NULL);
} else {
msg_display(MSG_rcconf_delete_failed, value);
process_menu(MENU_ok, NULL);
}
} else {
(void)unlink(bakname);
}
}
done:
(void)unlink(tempname);
free(rcconf);
free(tempname);
free(bakname);
return retval;
}
void
add_sysctl_conf(const char *fmt, ...)
{
FILE *f;
va_list ap;
va_start(ap, fmt);
f = target_fopen("/etc/sysctl.conf", "a");
if (f != 0) {
scripting_fprintf(NULL, "cat <<EOF >>%s/etc/sysctl.conf\n",
target_prefix());
scripting_vfprintf(f, fmt, ap);
fclose(f);
scripting_fprintf(NULL, "EOF\n");
}
va_end(ap);
}
void
enable_rc_conf(void)
{
replace("/etc/rc.conf", "s/^rc_configured=NO/rc_configured=YES/");
}
int
check_lfs_progs(void)
{
#ifndef NO_LFS
return binary_available("fsck_lfs") && binary_available("mount_lfs")
&& binary_available("newfs_lfs");
#else
return 0;
#endif
}
int
set_is_source(const char *set_name) {
int len = strlen(set_name);
return len >= 3 && memcmp(set_name + len - 3, "src", 3) == 0;
}
const char *
set_dir_for_set(const char *set_name) {
if (strcmp(set_name, "pkgsrc") == 0)
return pkgsrc_dir;
return set_is_source(set_name) ? set_dir_src : set_dir_bin;
}
const char *
ext_dir_for_set(const char *set_name) {
if (strcmp(set_name, "pkgsrc") == 0)
return ext_dir_pkgsrc;
return set_is_source(set_name) ? ext_dir_src : ext_dir_bin;
}
void
do_coloring(unsigned int fg, unsigned int bg) {
if (bg > COLOR_WHITE)
bg = COLOR_BLUE;
if (fg > COLOR_WHITE)
fg = COLOR_WHITE;
if (fg != bg && has_colors()) {
init_pair(1, fg, bg);
wbkgd(stdscr, COLOR_PAIR(1));
wbkgd(mainwin, COLOR_PAIR(1));
wattrset(stdscr, COLOR_PAIR(1));
wattrset(mainwin, COLOR_PAIR(1));
}
/* redraw screen */
touchwin(stdscr);
touchwin(mainwin);
wrefresh(stdscr);
wrefresh(mainwin);
return;
}
int
set_menu_select(menudesc *m, void *arg)
{
*(int *)arg = m->cursel;
return 1;
}
/*
* check wether a binary is available somewhere in PATH,
* return 1 if found, 0 if not.
*/
int
binary_available(const char *prog)
{
char *p, tmp[MAXPATHLEN], *path = getenv("PATH");
if (path == NULL)
return access(prog, X_OK) == 0;
path = strdup(path);
if (path == NULL)
return 0;
while ((p = strsep(&path, ":")) != NULL) {
if (strlcpy(tmp, p, MAXPATHLEN) >= MAXPATHLEN)
continue;
if (strlcat(tmp, "/", MAXPATHLEN) >= MAXPATHLEN)
continue;
if (strlcat(tmp, prog, MAXPATHLEN) >= MAXPATHLEN)
continue;
if (access(tmp, X_OK) == 0) {
free(path);
return 1;
}
}
free(path);
return 0;
}
const char *
safectime(time_t *t)
{
const char *s = ctime(t);
if (s != NULL)
return s;
// Debugging.
fprintf(stderr, "Can't convert to localtime 0x%jx (%s)\n",
(intmax_t)*t, strerror(errno));
/*123456789012345678901234*/
return "preposterous clock time\n";
}
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