/*
* Miscellaneous support routines..
*
* $Id: misc.c,v 1.17 1996/04/23 01:29:29 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.
*
* 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 "sysinstall.h"
#include <ctype.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/errno.h>
#include <sys/file.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/wait.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/reboot.h>
#include <sys/dkbad.h>
#include <sys/disklabel.h>
/* Quick check to see if a file is readable */
Boolean
file_readable(char *fname)
{
if (!access(fname, F_OK))
return TRUE;
return FALSE;
}
/* Quick check to see if a file is executable */
Boolean
file_executable(char *fname)
{
if (!access(fname, X_OK))
return TRUE;
return FALSE;
}
/* Concatenate two strings into static storage */
char *
string_concat(char *one, char *two)
{
static char tmp[FILENAME_MAX];
/* Yes, we're deliberately cavalier about not checking for overflow */
strcpy(tmp, one);
strcat(tmp, two);
return tmp;
}
/* Concatenate three strings into static storage */
char *
string_concat3(char *one, char *two, char *three)
{
static char tmp[FILENAME_MAX];
/* Yes, we're deliberately cavalier about not checking for overflow */
strcpy(tmp, one);
strcat(tmp, two);
strcat(tmp, three);
return tmp;
}
/* Clip the whitespace off the end of a string */
char *
string_prune(char *str)
{
int len = str ? strlen(str) : 0;
while (len && isspace(str[len - 1]))
str[--len] = '\0';
return str;
}
/* run the whitespace off the front of a string */
char *
string_skipwhite(char *str)
{
while (*str && isspace(*str))
++str;
return str;
}
/* copy optionally and allow second arg to be null */
char *
string_copy(char *s1, char *s2)
{
if (!s1)
return NULL;
if (!s2)
s1[0] = '\0';
else
strcpy(s1, s2);
return s1;
}
Boolean
directory_exists(const char *dirname)
{
DIR *tptr;
if (!dirname)
return FALSE;
if (!strlen(dirname))
return FALSE;
tptr = opendir(dirname);
if (!tptr)
return (FALSE);
closedir(tptr);
return (TRUE);
}
char *
pathBaseName(const char *path)
{
char *pt;
char *ret = (char *)path;
pt = strrchr(path,(int)'/');
if (pt != 0) /* if there is a slash */
{
ret = ++pt; /* start the file after it */
}
return(ret);
}
/* A free guaranteed to take NULL ptrs */
void
safe_free(void *ptr)
{
if (ptr)
free(ptr);
}
/* A malloc that checks errors */
void *
safe_malloc(size_t size)
{
void *ptr;
if (size <= 0)
msgFatal("Invalid malloc size of %d!", size);
ptr = malloc(size);
if (!ptr)
msgFatal("Out of memory!");
bzero(ptr, size);
return ptr;
}
/* A realloc that checks errors */
void *
safe_realloc(void *orig, size_t size)
{
void *ptr;
if (size <= 0)
msgFatal("Invalid realloc size of %d!", size);
ptr = realloc(orig, size);
if (!ptr)
msgFatal("Out of memory!");
return ptr;
}
/*
* These next routines are kind of specialized just for building string lists
* for dialog_menu().
*/
/* Add an item to an item list */
dialogMenuItem *
item_add(dialogMenuItem *list, char *prompt, char *title,
int (*checked)(dialogMenuItem *self),
int (*fire)(dialogMenuItem *self),
void (*selected)(dialogMenuItem *self, int is_selected),
void *data, int aux, int *curr, int *max)
{
dialogMenuItem *d;
if (*curr == *max) {
*max += 20;
list = (dialogMenuItem *)realloc(list, sizeof(dialogMenuItem) * *max);
}
d = &list[(*curr)++];
bzero(d, sizeof(*d));
d->prompt = prompt ? strdup(prompt) : NULL;
d->title = title ? strdup(title) : NULL;
d->checked = checked;
d->fire = fire;
d->selected = selected;
d->data = data;
d->aux = aux;
return list;
}
/* Toss the items out */
void
items_free(dialogMenuItem *list, int *curr, int *max)
{
int i;
for (i = 0; list[i].prompt; i++) {
safe_free(list[i].prompt);
safe_free(list[i].title);
}
safe_free(list);
*curr = *max = 0;
}
int
Mkdir(char *ipath, void *data)
{
struct stat sb;
int final=0;
char *p, *path;
if (file_readable(ipath))
return DITEM_SUCCESS;
path = strdup(ipath);
if (isDebug())
msgDebug("mkdir(%s)\n", path);
p = path;
if (p[0] == '/') /* Skip leading '/'. */
++p;
for (;!final; ++p) {
if (p[0] == '\0' || (p[0] == '/' && p[1] == '\0'))
final++;
else if (p[0] != '/')
continue;
*p = '\0';
if (stat(path, &sb)) {
if (errno != ENOENT) {
msgConfirm("Couldn't stat directory %s: %s", path, strerror(errno));
return DITEM_FAILURE;
}
if (isDebug())
msgDebug("mkdir(%s..)\n", path);
if (mkdir(path, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
msgConfirm("Couldn't create directory %s: %s", path,strerror(errno));
return DITEM_FAILURE;
}
}
*p = '/';
}
free(path);
return DITEM_SUCCESS;
}
int
Mount(char *mountp, void *dev)
{
struct ufs_args ufsargs;
char device[80];
char mountpoint[FILENAME_MAX];
if (*((char *)dev) != '/') {
sprintf(device, "/mnt/dev/%s", (char *)dev);
sprintf(mountpoint, "/mnt%s", mountp);
}
else {
strcpy(device, dev);
strcpy(mountpoint, mountp);
}
memset(&ufsargs,0,sizeof ufsargs);
if (Mkdir(mountpoint, NULL)) {
msgConfirm("Unable to make directory mountpoint for %s!", mountpoint);
return DITEM_FAILURE;
}
if (isDebug())
msgDebug("mount %s %s\n", device, mountpoint);
ufsargs.fspec = device;
if (mount(MOUNT_UFS, mountpoint, MNT_ASYNC, (caddr_t)&ufsargs) == -1) {
msgConfirm("Error mounting %s on %s : %s", device, mountpoint, strerror(errno));
return DITEM_FAILURE;
}
return DITEM_SUCCESS;
}
WINDOW *
savescr(void)
{
WINDOW *w;
w = dupwin(newscr);
return w;
}
void
restorescr(WINDOW *w)
{
touchwin(w);
wrefresh(w);
delwin(w);
}
