mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
061e2fb9a6
for everything _but_ the multi-user case now (it was the opposite before :-). That means adding packages with the 2.2-960511-SNAP boot floppy is busted. Feh.
146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/*
|
|
* The new sysinstall program.
|
|
*
|
|
* This is probably the last program in the `sysinstall' line - the next
|
|
* generation being essentially a complete rewrite.
|
|
*
|
|
* $Id: variable.c,v 1.10 1996/04/29 06:47:10 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"
|
|
|
|
/* Routines for dealing with variable lists */
|
|
|
|
static void
|
|
make_variable(char *var, char *value)
|
|
{
|
|
Variable *newvar;
|
|
|
|
/* Put it in the environment in any case */
|
|
setenv(var, value, 1);
|
|
|
|
/* Now search to see if it's already in the list */
|
|
for (newvar = VarHead; newvar; newvar = newvar->next) {
|
|
if (!strcmp(newvar->name, var)) {
|
|
if (isDebug())
|
|
msgDebug("variable %s was %s, now %s\n", newvar->name, newvar->value, value);
|
|
strncpy(newvar->value, value, VAR_VALUE_MAX);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* No? Create a new one */
|
|
newvar = (Variable *)safe_malloc(sizeof(Variable));
|
|
strncpy(newvar->name, var, VAR_NAME_MAX);
|
|
strncpy(newvar->value, value, VAR_VALUE_MAX);
|
|
newvar->next = VarHead;
|
|
VarHead = newvar;
|
|
if (isDebug())
|
|
msgDebug("Setting variable %s to %s\n", newvar->name, newvar->value);
|
|
}
|
|
|
|
void
|
|
variable_set(char *var)
|
|
{
|
|
char tmp[VAR_NAME_MAX + VAR_VALUE_MAX], *cp;
|
|
|
|
if (!var)
|
|
msgFatal("NULL variable name & value passed.");
|
|
else if (!*var)
|
|
msgDebug("Warning: Zero length name & value passed to variable_set()\n");
|
|
strncpy(tmp, var, VAR_NAME_MAX + VAR_VALUE_MAX);
|
|
if ((cp = index(tmp, '=')) == NULL)
|
|
msgFatal("Invalid variable format: %s", var);
|
|
*(cp++) = '\0';
|
|
make_variable(tmp, cp);
|
|
}
|
|
|
|
void
|
|
variable_set2(char *var, char *value)
|
|
{
|
|
if (!var || !value)
|
|
msgFatal("Null name or value passed to set_variable2!");
|
|
else if (!*var || !*value)
|
|
msgDebug("Warning: Zero length name or value passed to variable_set2()\n");
|
|
make_variable(var, value);
|
|
}
|
|
|
|
char *
|
|
variable_get(char *var)
|
|
{
|
|
return getenv(var);
|
|
}
|
|
|
|
void
|
|
variable_unset(char *var)
|
|
{
|
|
Variable *vp;
|
|
char name[VAR_NAME_MAX + 1], *cp;
|
|
|
|
unsetenv(var);
|
|
if ((cp = index(var, '=')) != NULL) {
|
|
strncpy(name, cp, cp - var);
|
|
name[cp - var] = '\0';
|
|
var = name;
|
|
}
|
|
|
|
/* Now search to see if it's in our list, if we have one.. */
|
|
if (!VarHead)
|
|
return;
|
|
else if (!VarHead->next && !strcmp(VarHead->name, var)) {
|
|
free(VarHead);
|
|
VarHead = NULL;
|
|
}
|
|
else {
|
|
for (vp = VarHead; vp; vp = vp->next) {
|
|
if (!strcmp(vp->name, var)) {
|
|
Variable *save = vp->next;
|
|
|
|
*vp = *save;
|
|
safe_free(save);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Prompt user for the name of a variable */
|
|
char *
|
|
variable_get_value(char *var, char *prompt)
|
|
{
|
|
char *cp;
|
|
|
|
if ((cp = msgGetInput(variable_get(var), prompt)) != NULL)
|
|
variable_set2(var, cp);
|
|
else
|
|
cp = NULL;
|
|
return cp;
|
|
}
|