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setup2.cxx
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setup2.cxx
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//
// ESP Software Installation Wizard main entry for the ESP Package Manager (EPM).
//
// Copyright 1999-2017 by Michael R Sweet
// Copyright 1999-2010 by Easy Software Products.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
#define _DEFINE_GLOBALS_
#include "setup.h"
#include <FL/Fl_GIF_Image.H>
#include <FL/Fl_JPEG_Image.H>
#include <FL/Fl_PNG_Image.H>
#include <FL/Fl_XPM_Image.H>
#include <FL/x.H>
#include <FL/filename.H>
#include <FL/fl_ask.H>
#include <errno.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif // HAVE_SYS_PARAM_H
#ifdef HAVE_SYS_MOUNT_H
# include <sys/mount.h>
#endif // HAVE_SYS_MOUNT_H
#ifdef HAVE_SYS_STATFS_H
# include <sys/statfs.h>
#endif // HAVE_SYS_STATFS_H
#ifdef HAVE_SYS_VFS_H
# include <sys/vfs.h>
#endif // HAVE_SYS_VFS_H
#ifdef __osf__
// No prototype for statfs under Tru64...
extern "C" {
extern int statfs(const char *, struct statfs *);
}
#endif // __osf__
#ifdef __APPLE__
# include <CoreFoundation/CoreFoundation.h>
# include <Security/Authorization.h>
# include <Security/AuthorizationTags.h>
AuthorizationRef SetupAuthorizationRef;
#endif // __APPLE__
//
// Panes...
//
#define PANE_WELCOME 0
#define PANE_TYPE 1
#define PANE_SELECT 2
#define PANE_CONFIRM 3
#define PANE_LICENSE 4
#define PANE_INSTALL 5
//
// Define a C API function type for comparisons...
//
extern "C" {
typedef int (*compare_func_t)(const void *, const void *);
}
//
// Local functions...
//
void get_dists(const char *d);
int install_dist(const gui_dist_t *dist);
int license_dist(const gui_dist_t *dist);
void load_image(void);
void load_readme(void);
void load_types(void);
void log_cb(int fd, int *fdptr);
void update_sizes(void);
//
// 'main()' - Main entry for software wizard...
//
int // O - Exit status
main(int argc, // I - Number of command-line arguments
char *argv[]) // I - Command-line arguments
{
Fl_Window *w; // Main window...
const char *distdir = "."; // Distribution directory
// Use GTK+ scheme for all operating systems...
Fl::background(230, 230, 230);
Fl::scheme("gtk+");
#ifdef __APPLE__
// macOS uses the setup program in a bundle, so get the bundle's directory.
CFBundleRef mainBundle = CFBundleGetMainBundle();
char mainPath[1024] = "";
if (mainBundle)
{
CFURLRef mainURL = CFBundleCopyBundleURL(mainBundle);
CFStringRef mainCFPath = CFURLCopyFileSystemPath(mainURL, kCFURLPOSIXPathStyle);
if (CFStringGetCString(mainCFPath, mainPath, sizeof(mainPath), kCFStringEncodingUTF8))
{
strlcat(mainPath, "/Contents/Resources", sizeof(mainPath));
fprintf(stderr, "Using \"%s\" as the distribution directory.\n", mainPath);
distdir = mainPath;
}
CFRelease(mainCFPath);
CFRelease(mainURL);
}
else
#endif // __APPLE__
// Get the directory that has the software in it...
if (argc > 1 && argv[1][0] != '-')
distdir = argv[1];
w = make_window();
Pane[PANE_WELCOME]->show();
PrevButton->deactivate();
NextButton->deactivate();
gui_get_installed();
get_dists(distdir);
load_image();
load_readme();
load_types();
w->show();
while (!w->visible())
Fl::wait();
#ifdef __APPLE__
OSStatus status;
status = AuthorizationCreate(NULL, kAuthorizationEmptyEnvironment,
kAuthorizationFlagDefaults,
&SetupAuthorizationRef);
if (status != errAuthorizationSuccess)
{
fl_alert("You must have administrative priviledges to install this software!");
return (1);
}
AuthorizationItem items = { kAuthorizationRightExecute, 0, NULL, 0 };
AuthorizationRights rights = { 1, &items };
status = AuthorizationCopyRights(SetupAuthorizationRef, &rights, NULL,
kAuthorizationFlagDefaults |
kAuthorizationFlagInteractionAllowed |
kAuthorizationFlagPreAuthorize |
kAuthorizationFlagExtendRights, NULL);
if (status != errAuthorizationSuccess)
{
fl_alert("You must have administrative priviledges to install this software!");
return (1);
}
#else
if (getuid() != 0)
{
fl_alert("You must be logged in as root to run setup!");
return (1);
}
#endif // __APPLE__
NextButton->activate();
Fl::run();
#ifdef __APPLE__
AuthorizationFree(SetupAuthorizationRef, kAuthorizationFlagDefaults);
#endif // __APPLE__
return (0);
}
//
// 'get_dists()' - Get a list of available software products.
//
void
get_dists(const char *d) // I - Directory to look in
{
int i; // Looping var
int num_files; // Number of files
dirent **files; // Files
const char *ext; // Extension
gui_dist_t *temp, // Pointer to current distribution
*installed; // Pointer to installed product
FILE *fp; // File to read from
char line[1024], // Line from file...
product[64]; // Product name...
int lowver, hiver; // Version numbers for dependencies
// Get the files in the specified directory...
if (chdir(d))
{
fprintf(stderr, "setup: Unable to change to distribution directory \"%s\": %s\n", d, strerror(errno));
exit(1);
}
if ((num_files = fl_filename_list(".", &files)) == 0)
{
fputs("setup: Error - no software products found!\n", stderr);
exit(1);
}
// Build a distribution list...
NumDists = 0;
Dists = (gui_dist_t *)0;
for (i = 0; i < num_files; i ++)
{
ext = fl_filename_ext(files[i]->d_name);
if (!strcmp(ext, ".install") || !strcmp(ext, ".patch"))
{
// Found a .install script...
if ((fp = fopen(files[i]->d_name, "r")) == NULL)
{
perror("setup: Unable to open installation script");
exit(1);
}
// Add a new distribution entry...
temp = gui_add_dist(&NumDists, &Dists);
temp->type = PACKAGE_PORTABLE;
temp->filename = strdup(files[i]->d_name);
strncpy(temp->product, files[i]->d_name, sizeof(temp->product) - 1);
*strrchr(temp->product, '.') = '\0'; // Drop .install
// Read info from the installation script...
while (fgets(line, sizeof(line), fp) != NULL)
{
// Only read distribution info lines...
if (strncmp(line, "#%", 2))
continue;
// Drop the trailing newline...
line[strlen(line) - 1] = '\0';
// Copy data as needed...
if (strncmp(line, "#%product ", 10) == 0)
strncpy(temp->name, line + 10, sizeof(temp->name) - 1);
else if (strncmp(line, "#%version ", 10) == 0)
sscanf(line + 10, "%31s%d", temp->version, &(temp->vernumber));
else if (strncmp(line, "#%rootsize ", 11) == 0)
temp->rootsize = atoi(line + 11);
else if (strncmp(line, "#%usrsize ", 10) == 0)
temp->usrsize = atoi(line + 10);
else if (strncmp(line, "#%incompat ", 11) == 0 ||
strncmp(line, "#%requires ", 11) == 0)
{
lowver = 0;
hiver = 0;
if (sscanf(line + 11, "%s%*s%d%*s%d", product, &lowver, &hiver) > 0)
gui_add_depend(temp, (line[2] == 'i') ? DEPEND_INCOMPAT :
DEPEND_REQUIRES,
product, lowver, hiver);
}
}
fclose(fp);
}
else if (!strcmp(ext, ".rpm"))
{
// Found an RPM package...
char *version, // Version number
*size, // Size of package
*description; // Summary string
// Get the package information...
snprintf(line, sizeof(line),
"rpm -qp --qf '%%{NAME}|%%{VERSION}|%%{SIZE}|%%{SUMMARY}\\n' %s",
files[i]->d_name);
if ((fp = popen(line, "r")) == NULL)
{
free(files[i]);
continue;
}
if (!fgets(line, sizeof(line), fp))
{
free(files[i]);
continue;
}
// Drop the trailing newline...
line[strlen(line) - 1] = '\0';
// Grab the different fields...
if ((version = strchr(line, '|')) == NULL)
continue;
*version++ = '\0';
if ((size = strchr(version, '|')) == NULL)
continue;
*size++ = '\0';
if ((description = strchr(size, '|')) == NULL)
continue;
*description++ = '\0';
// Add a new distribution entry...
temp = gui_add_dist(&NumDists, &Dists);
temp->type = PACKAGE_RPM;
temp->filename = strdup(files[i]->d_name);
strlcpy(temp->product, line, sizeof(temp->product));
strlcpy(temp->name, description, sizeof(temp->name));
strlcpy(temp->version, version, sizeof(temp->version));
temp->vernumber = get_vernumber(version);
temp->rootsize = (int)(atof(size) / 1024.0 + 0.5);
pclose(fp);
}
free(files[i]);
}
free(files);
if (NumDists == 0)
{
// fl_alert("No software found to install!");
fl_alert("No software found to install in \"%s\".", d);
exit(1);
}
if (NumDists > 1)
qsort(Dists, NumDists, sizeof(gui_dist_t), (compare_func_t)gui_sort_dists);
for (i = 0, temp = Dists; i < NumDists; i ++, temp ++)
{
sprintf(line, "%s v%s", temp->name, temp->version);
if ((installed = gui_find_dist(temp->product, NumInstalled,
Installed)) == NULL)
{
strcat(line, " (new)");
SoftwareList->add(line, 0);
}
else if (installed->vernumber > temp->vernumber)
{
strcat(line, " (downgrade)");
SoftwareList->add(line, 0);
}
else if (installed->vernumber == temp->vernumber)
{
strcat(line, " (installed)");
SoftwareList->add(line, 0);
}
else
{
strcat(line, " (upgrade)");
SoftwareList->add(line, 1);
}
}
update_sizes();
}
//
// 'install_dist()' - Install a distribution...
//
int // O - Install status
install_dist(const gui_dist_t *dist) // I - Distribution to install
{
char command[1024]; // Command string
int fds[2]; // Pipe FDs
int status = 0; // Exit status
#ifndef __APPLE__
int pid; // Process ID
#endif // !__APPLE__
sprintf(command, "**** %s ****", dist->name);
InstallLog->add(command);
#ifdef __APPLE__
// Run the install script using Apple's authorization API...
FILE *fp = NULL;
char *args[2] = { (char *)"now", NULL };
OSStatus astatus;
astatus = AuthorizationExecuteWithPrivileges(SetupAuthorizationRef,
dist->filename,
kAuthorizationFlagDefaults,
args, &fp);
if (astatus != errAuthorizationSuccess)
{
InstallLog->add("Failed to execute install script!");
return (1);
}
fds[0] = fileno(fp);
#else
// Fork the command and redirect errors and info to stdout...
pipe(fds);
if ((pid = fork()) == 0)
{
// Child comes here; start by redirecting stdout and stderr...
close(1);
close(2);
dup(fds[1]);
dup(fds[1]);
// Close the original pipes...
close(fds[0]);
close(fds[1]);
// Execute the command; if an error occurs, return it...
if (dist->type == PACKAGE_PORTABLE)
execl(dist->filename, dist->filename, "now", (char *)0);
else
execlp("rpm", "rpm", "-U", "--nodeps", dist->filename, (char *)0);
exit(errno);
}
else if (pid < 0)
{
// Unable to fork!
sprintf(command, "Unable to install %s:", dist->name);
InstallLog->add(command);
sprintf(command, "\t%s", strerror(errno));
InstallLog->add(command);
close(fds[0]);
close(fds[1]);
return (1);
}
// Close the output pipe (used by the child)...
close(fds[1]);
#endif // __APPLE__
// Listen for data on the input pipe...
Fl::add_fd(fds[0], (void (*)(int, void *))log_cb, fds);
// Show the user that we're busy...
SetupWindow->cursor(FL_CURSOR_WAIT);
// Loop until the child is done...
while (fds[0]) // log_cb() will close and zero fds[0]...
{
// Wait for events...
Fl::wait();
#ifndef __APPLE__
// Check to see if the child went away...
if (waitpid(0, &status, WNOHANG) == pid)
break;
#endif // !__APPLE__
}
#ifdef __APPLE__
fclose(fp);
#endif // __APPLE__
if (fds[0])
{
// Close the pipe - have all the data from the child...
Fl::remove_fd(fds[0]);
close(fds[0]);
}
else
{
// Get the child's exit status...
wait(&status);
}
// Show the user that we're ready...
SetupWindow->cursor(FL_CURSOR_DEFAULT);
// Return...
return (status);
}
//
// 'license_dist()' - Show the license for a distribution...
//
int // O - 0 if accepted, 1 if not
license_dist(const gui_dist_t *dist) // I - Distribution to license
{
char licfile[1024]; // License filename
struct stat licinfo; // License file info
static int liclength = 0; // Size of license file
static char liclabel[1024]; // Label for license pane
// See if we need to show the license file...
sprintf(licfile, "%s.license", dist->product);
if (!stat(licfile, &licinfo) && licinfo.st_size != liclength)
{
// Save this license's length...
liclength = licinfo.st_size;
// Set the title string...
snprintf(liclabel, sizeof(liclabel), "Software License for %s:", dist->name);
LicenseFile->label(liclabel);
// Load the license into the viewer...
LicenseFile->textfont(FL_HELVETICA);
LicenseFile->textsize(14);
gui_load_file(LicenseFile, licfile);
// Show the license window and wait for the user...
Pane[PANE_LICENSE]->show();
Title[PANE_LICENSE]->activate();
LicenseAccept->clear();
LicenseDecline->clear();
NextButton->deactivate();
CancelButton->activate();
while (Pane[PANE_LICENSE]->visible())
Fl::wait();
Title[PANE_INSTALL]->deactivate();
CancelButton->deactivate();
NextButton->deactivate();
if (LicenseDecline->value())
{
// Can't install without acceptance...
char message[1024]; // Message for log
liclength = 0;
snprintf(message, sizeof(message), "License not accepted for %s!",
dist->name);
InstallLog->add(message);
return (1);
}
}
return (0);
}
//
// 'list_cb()' - Handle selections in the software list.
//
void
list_cb(Fl_Check_Browser *, void *)
{
int i, j, k;
gui_dist_t *dist,
*dist2;
gui_depend_t *depend;
if (SoftwareList->nchecked() == 0)
{
update_sizes();
NextButton->deactivate();
return;
}
for (i = 0, dist = Dists; i < NumDists; i ++, dist ++)
if (SoftwareList->checked(i + 1))
{
// Check for required/incompatible products...
for (j = 0, depend = dist->depends; j < dist->num_depends; j ++, depend ++)
switch (depend->type)
{
case DEPEND_REQUIRES :
if ((dist2 = gui_find_dist(depend->product, NumDists,
Dists)) != NULL)
{
// Software is in the list, is it selected?
k = dist2 - Dists;
if (SoftwareList->checked(k + 1))
continue;
// Nope, select it unless we're unchecked another selection...
if (SoftwareList->value() != (k + 1))
SoftwareList->checked(k + 1, 1);
else
{
SoftwareList->checked(i + 1, 0);
break;
}
}
else if ((dist2 = gui_find_dist(depend->product, NumInstalled,
Installed)) == NULL)
{
// Required but not installed or available!
fl_alert("%s requires %s to be installed, but it is not available "
"for installation.", dist->name, depend->product);
SoftwareList->checked(i + 1, 0);
break;
}
break;
case DEPEND_INCOMPAT :
if ((dist2 = gui_find_dist(depend->product, NumInstalled,
Installed)) != NULL)
{
// Already installed!
fl_alert("%s is incompatible with %s. Please remove it before "
"installing this software.", dist->name, dist2->name);
SoftwareList->checked(i + 1, 0);
break;
}
else if ((dist2 = gui_find_dist(depend->product, NumDists,
Dists)) != NULL)
{
// Software is in the list, is it selected?
k = dist2 - Dists;
// Software is in the list, is it selected?
if (!SoftwareList->checked(k + 1))
continue;
// Yes, tell the user...
fl_alert("%s is incompatible with %s. Please deselect it before "
"installing this software.", dist->name, dist2->name);
SoftwareList->checked(i + 1, 0);
break;
}
default :
break;
}
}
update_sizes();
if (SoftwareList->nchecked())
NextButton->activate();
else
NextButton->deactivate();
}
//
// 'load_image()' - Load the setup image file (setup.gif/xpm)...
//
void
load_image(void)
{
Fl_Image *img; // New image
if (!access("setup.xpm", 0))
img = new Fl_XPM_Image("setup.xpm");
else if (!access("setup.gif", 0))
img = new Fl_GIF_Image("setup.gif");
else if (!access("setup.jpg", 0))
img = new Fl_JPEG_Image("setup.jpg");
else if (!access("setup.png", 0))
img = new Fl_PNG_Image("setup.png");
else
img = NULL;
if (img)
WelcomeImage->image(img);
}
//
// 'load_readme()' - Load the readme file...
//
void
load_readme(void)
{
ReadmeFile->textfont(FL_HELVETICA);
ReadmeFile->textsize(14);
if (access("setup.readme", 0))
{
int i; // Looping var
gui_dist_t *dist; // Current distribution
char *buffer, // Text buffer
*ptr; // Pointer into buffer
buffer = new char[1024 + NumDists * 300];
strcpy(buffer,
"This program allows you to install the following software:\n"
"<ul>\n");
ptr = buffer + strlen(buffer);
for (i = NumDists, dist = Dists; i > 0; i --, dist ++)
{
sprintf(ptr, "<li>%s, %s\n", dist->name, dist->version);
ptr += strlen(ptr);
}
strcpy(ptr, "</ul>");
ReadmeFile->value(buffer);
delete[] buffer;
}
else
gui_load_file(ReadmeFile, "setup.readme");
}
//
// 'load_types()' - Load the installation types from the setup.types file.
//
void
load_types(void)
{
int i; // Looping var
FILE *fp; // File to read from
char line[1024], // Line from file
*lineptr, // Pointer into line
*sep; // Separator
gui_intype_t *dt; // Current install type
gui_dist_t *dist; // Distribution
NumInstTypes = 0;
if ((fp = fopen("setup.types", "r")) != NULL)
{
dt = NULL;
while (fgets(line, sizeof(line), fp) != NULL)
{
if (line[0] == '#' || line[0] == '\n')
continue;
lineptr = line + strlen(line) - 1;
if (*lineptr == '\n')
*lineptr = '\0';
if (!strncasecmp(line, "TYPE", 4) && isspace(line[4]))
{
// New type...
if (NumInstTypes >= (int)(sizeof(InstTypes) / sizeof(InstTypes[0])))
{
fprintf(stderr, "setup: Too many TYPEs (> %d) in setup.types!\n",
(int)(sizeof(InstTypes) / sizeof(InstTypes[0])));
fclose(fp);
exit(1);
}
// Skip whitespace...
for (lineptr = line + 5; isspace(*lineptr); lineptr ++);
// Copy name and label string...
dt = InstTypes + NumInstTypes;
NumInstTypes ++;
memset(dt, 0, sizeof(gui_intype_t));
if ((sep = strchr(lineptr, '/')) != NULL)
*sep++ = '\0';
else
sep = lineptr;
strncpy(dt->name, lineptr, sizeof(dt->name));
strncpy(dt->label, sep, sizeof(dt->label) - 10);
}
else if (!strncasecmp(line, "INSTALL", 7) && dt && isspace(line[7]))
{
// Install a product...
if (dt->num_products >= (int)(sizeof(dt->products) / sizeof(dt->products[0])))
{
fprintf(stderr, "setup: Too many INSTALLs (> %d) in setup.types!\n",
(int)(sizeof(dt->products) / sizeof(dt->products[0])));
fclose(fp);
exit(1);
}
// Skip whitespace...
for (lineptr = line + 8; isspace(*lineptr); lineptr ++);
// Add product to list...
if ((dist = gui_find_dist(lineptr, NumDists, Dists)) != NULL)
{
dt->products[dt->num_products] = dist - Dists;
dt->num_products ++;
dt->size += dist->rootsize + dist->usrsize;
if ((dist = gui_find_dist(lineptr, NumInstalled, Installed)) != NULL)
dt->size -= dist->rootsize + dist->usrsize;
}
else
fprintf(stderr, "setup: Unable to find product \"%s\" for \"%s\"!\n",
lineptr, dt->label);
}
else
{
fprintf(stderr, "setup: Bad line - %s\n", line);
fclose(fp);
exit(1);
}
}
fclose(fp);
}
else
{
Title[PANE_TYPE]->hide();
Title[PANE_SELECT]->position(10, 35);
Title[PANE_CONFIRM]->position(10, 60);
Title[PANE_LICENSE]->position(10, 85);
Title[PANE_INSTALL]->position(10, 110);
}
for (i = 0, dt = InstTypes; i < NumInstTypes; i ++, dt ++)
{
if (dt->size >= 1024)
sprintf(dt->label + strlen(dt->label), " (+%.1fm disk space)",
dt->size / 1024.0);
else if (dt->size)
sprintf(dt->label + strlen(dt->label), " (+%dk disk space)", dt->size);
if ((lineptr = strchr(dt->label, '/')) != NULL)
TypeButton[i]->label(lineptr + 1);
else
TypeButton[i]->label(dt->label);
TypeButton[i]->show();
}
for (; i < (int)(sizeof(TypeButton) / sizeof(TypeButton[0])); i ++)
TypeButton[i]->hide();
}
//
// 'log_cb()' - Add one or more lines of text to the installation log.
//
void
log_cb(int fd, // I - Pipe to read from
int *fdptr) // O - Pipe to read from
{
int bytes; // Bytes read/to read
char *bufptr; // Pointer into buffer
static int bufused = 0; // Number of bytes used
static char buffer[8193]; // Buffer
bytes = 8192 - bufused;
if ((bytes = read(fd, buffer + bufused, bytes)) <= 0)
{
// End of file; zero the FD to tell the install_dist() function to
// stop...
Fl::remove_fd(fd);
close(fd);
*fdptr = 0;
if (bufused > 0)
{
// Add remaining text...
buffer[bufused] = '\0';
InstallLog->add(buffer);
bufused = 0;
}
}
else
{
// Add bytes to the buffer, then add lines as needed...
bufused += bytes;
buffer[bufused] = '\0';
while ((bufptr = strchr(buffer, '\n')) != NULL)
{
*bufptr++ = '\0';
InstallLog->add(buffer);
strcpy(buffer, bufptr);
bufused -= bufptr - buffer;
}
}
InstallLog->bottomline(InstallLog->size());
}
//
// 'next_cb()' - Show software selections or install software.
//
void
next_cb(Fl_Button *, void *)
{
int i; // Looping var
int progress; // Progress so far...
int error; // Errors?
static char message[1024]; // Progress message...
static char install_type[1024]; // EPM_INSTALL_TYPE env variable
static int installing = 0; // Installing software?
Wizard->next();
PrevButton->deactivate();
if (Wizard->value() == Pane[PANE_TYPE])
{
if (NumInstTypes == 0)
Wizard->next();
}
else if (Wizard->value() == Pane[PANE_SELECT])
{
if (NumInstTypes)
PrevButton->activate();
// Figure out which type is chosen...
for (i = 0; i < (int)(sizeof(TypeButton) / sizeof(TypeButton[0])); i ++)
if (TypeButton[i]->value())
break;
if (i < (int)(sizeof(TypeButton) / sizeof(TypeButton[0])))
{
// Set the EPM_INSTALL_TYPE environment variable...
snprintf(install_type, sizeof(install_type), "EPM_INSTALL_TYPE=%s",
InstTypes[i].name);
putenv(install_type);
// Skip product selection if this type has a list already...
if (InstTypes[i].num_products > 0)
Wizard->next();
}
}
if (Wizard->value() == Pane[PANE_CONFIRM])
{
ConfirmList->clear();
PrevButton->activate();
for (i = 0; i < NumDists; i ++)
if (SoftwareList->checked(i + 1))
ConfirmList->add(SoftwareList->text(i + 1));
}
else if (Wizard->value() == Pane[PANE_LICENSE])
Wizard->next();
if (Wizard->value() == Pane[PANE_INSTALL] && !installing)
{
// Show the licenses for each of the selected software packages...
installing = 1;
for (i = 0, progress = 0, error = 0; i < NumDists; i ++)
if (SoftwareList->checked(i + 1) && license_dist(Dists + i))
{
InstallPercent->label("Installation Canceled!");
Pane[PANE_INSTALL]->redraw();