/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "signtool.h"
#include "prio.h"
#include "prmem.h"
#include "nss.h"

static int	is_dir (char *filename);

/***********************************************************
 * Nasty hackish function definitions
 */

long	*mozilla_event_queue = 0;

#ifndef XP_WIN
char	*XP_GetString (int i)
{
    return SECU_Strerror (i);
}
#endif

void	FE_SetPasswordEnabled()
{
}


void	/*MWContext*/ *FE_GetInitContext (void)
{
    return 0;
}


void	/*MWContext*/ *XP_FindSomeContext()
{
    /* No windows context in command tools */
    return NULL;
}


void	ET_moz_CallFunction()
{
}


/*
 *  R e m o v e A l l A r c
 *
 *  Remove .arc directories that are lingering
 *  from a previous run of signtool.
 *
 */
int
RemoveAllArc(char *tree)
{
    PRDir * dir;
    PRDirEntry * entry;
    char	*archive = NULL;
    int	retval = 0;

    dir = PR_OpenDir (tree);
    if (!dir) 
	return - 1;

    for (entry = PR_ReadDir (dir, 0); entry; entry = PR_ReadDir (dir,
         0)) {

	if (entry->name[0] == '.') {
	    continue;
	}

	if (archive) 
	    PR_Free(archive);
	archive = PR_smprintf("%s/%s", tree, entry->name);

	if (PL_strcaserstr (entry->name, ".arc")
	     == (entry->name + strlen(entry->name) - 4) ) {

	    if (verbosity >= 0) {
		PR_fprintf(outputFD, "removing: %s\n", archive);
	    }

	    if (rm_dash_r(archive)) {
		PR_fprintf(errorFD, "Error removing %s\n", archive);
		errorCount++;
		retval = -1;
		goto finish;
	    }
	} else if (is_dir(archive)) {
	    if (RemoveAllArc(archive)) {
		retval = -1;
		goto finish;
	    }
	}
    }

finish:
    PR_CloseDir (dir);
    if (archive) 
	PR_Free(archive);

    return retval;
}


/*
 *  r m _ d a s h _ r
 *
 *  Remove a file, or a directory recursively.
 *
 */
int	rm_dash_r (char *path)
{
    PRDir	 * dir;
    PRDirEntry * entry;
    PRFileInfo fileinfo;
    char	filename[FNSIZE];

    if (PR_GetFileInfo(path, &fileinfo) != PR_SUCCESS) {
	/*fprintf(stderr, "Error: Unable to access %s\n", filename);*/
	return - 1;
    }
    if (fileinfo.type == PR_FILE_DIRECTORY) {

	dir = PR_OpenDir(path);
	if (!dir) {
	    PR_fprintf(errorFD, "Error: Unable to open directory %s.\n", path);
	    errorCount++;
	    return - 1;
	}

	/* Recursively delete all entries in the directory */
	while ((entry = PR_ReadDir(dir, PR_SKIP_BOTH)) != NULL) {
	    sprintf(filename, "%s/%s", path, entry->name);
	    if (rm_dash_r(filename)) 
		return - 1;
	}

	if (PR_CloseDir(dir) != PR_SUCCESS) {
	    PR_fprintf(errorFD, "Error: Could not close %s.\n", path);
	    errorCount++;
	    return - 1;
	}

	/* Delete the directory itself */
	if (PR_RmDir(path) != PR_SUCCESS) {
	    PR_fprintf(errorFD, "Error: Unable to delete %s\n", path);
	    errorCount++;
	    return - 1;
	}
    } else {
	if (PR_Delete(path) != PR_SUCCESS) {
	    PR_fprintf(errorFD, "Error: Unable to delete %s\n", path);
	    errorCount++;
	    return - 1;
	}
    }
    return 0;
}


/*
 *  u s a g e 
 * 
 *  Print some useful help information
 *
 */


void
Usage (void)
{
#define FPS PR_fprintf(outputFD,
    FPS "%s %s -a signing tool for jar files\n", LONG_PROGRAM_NAME,NSS_VERSION);
    FPS "\n\nType %s -H for more detailed descriptions\n", PROGRAM_NAME);
    FPS "\nUsage:  %s -k keyName [-b basename] [-c Compression Level]\n"
        "\t\t [-d cert-dir] [-i installer script] [-m metafile] [-x name]\n"
        "\t\t [-e extension] [-o] [-z] [-X] [--outfile] [--verbose value]\n"
        "\t\t [--norecurse] [--leavearc] [-j directory] [-Z jarfile] [-O]\n"
        "\t\t [-p password] directory-tree\n", PROGRAM_NAME);
    FPS "\t%s -J -k keyName [-b basename] [-c Compression Level]\n"
        "\t\t [-d cert-dir][-i installer script] [-m metafile] [-x name]\n"
        "\t\t [-e extension] [-o] [-z] [-X] [--outfile] [--verbose value]\n"
        "\t\t [--norecurse] [--leavearc] [-j directory] [-p password] [-O] \n"
        "\t\t directory-tree\n", PROGRAM_NAME);
    FPS "\t%s -h \n", PROGRAM_NAME);
    FPS "\t%s -H \n", PROGRAM_NAME);
    FPS "\t%s -l [-k keyName] [-d cert-dir] [--outfile] [-O] \n", PROGRAM_NAME);
    FPS "\t%s -L [-k keyName] [-d cert-dir] [--outfile] [-O] \n", PROGRAM_NAME);
    FPS "\t%s -M [--outfile] [-O] \n", PROGRAM_NAME);
    FPS "\t%s -v [-d cert-dir] [--outfile] [-O] archive\n", PROGRAM_NAME);
    FPS "\t%s -w [--outfile] [-O] archive\n" , PROGRAM_NAME);
    FPS "\t%s -G nickname [--keysize|-s size] [-t |--token tokenname]\n"
        "\t\t [--outfile] [-O] \n", PROGRAM_NAME);
    FPS "\t%s -f filename\n" , PROGRAM_NAME);
    exit (ERRX);
}

void 
LongUsage(void)
{
    FPS "%s %s -a signing tool for jar files\n", LONG_PROGRAM_NAME,NSS_VERSION);
    FPS "\n%-20s  Signs the directory-tree\n",
        "signtool directory-tree");
    FPS "%-30s Nickname (key) of the certificate to sign with\n",
        "   -k keyname");
    FPS "%-30s Base filename for the .rsa and.sf files in the\n",
        "   -b basename");
    FPS "%-30s META-INF directory\n"," ");
    FPS "%-30s Set the compression level. 0-9, 0=none\n", 
	"   -c CompressionLevel");
    FPS "%-30s Certificate database directory containing cert*db\n",
	"   -d certificate directory");
    FPS "%-30s and key*db\n"," ");
    FPS "%-30s Name of the installer script for SmartUpdate\n",
	"   -i installer script");
    FPS "%-30s Name of a metadata control file\n",
	"   -m metafile");
    FPS "%-30s For optimizing the archive for size.\n",
	"   -o");
    FPS "%-30s Omit Optional Headers\n"," ");
    FPS "%-30s Excludes the specified directory or file from\n",
	"   -x  directory or file name");
    FPS "%-30s signing\n"," ");
    FPS "%-30s To not store the signing time in digital\n",
	"   -z  directory or file name");
    FPS "%-30s signature\n"," ");
    FPS "%-30s Create XPI Compatible Archive. It requires -Z\n",
	"   -X  directory or file name");
    FPS "%-30s option\n"," ");
    FPS "%-30s Sign only files with the given extension\n",
	"   -e");
    FPS "%-30s Causes the specified directory to be signed and\n",
	"   -j");
    FPS "%-30s tags its entries as inline JavaScript\n"," ");
    FPS "%-30s Creates a JAR file with the specified name.\n",
	"   -Z");
    FPS "%-30s -Z option cannot be used with -J option\n"," ");
    FPS "%-30s Specifies a password for the private-key database\n",
	"   -p");
    FPS "%-30s (insecure)\n"," ");
    FPS "%-30s File to receive redirected output\n",
    	"   --outfile filename");
    FPS "%-30s Sets the quantity of information generated in\n",
	"   --verbosity value");
    FPS "%-30s operation\n"," ");
    FPS "%-30s Blocks recursion into subdirectories\n",
	"   --norecurse");
    FPS "%-30s Retains the temporary .arc (archive) directories\n",
	"   --leavearc");
    FPS "%-30s -J option creates\n"," ");

    FPS "\n%-20s Signs a directory of HTML files containing JavaScript and\n",
	"-J" );
    FPS "%-20s creates as many archive files as are in the HTML tags.\n"," ");

    FPS "%-20s The options are same as without any command option given\n"," ");
    FPS "%-20s above. -Z and -J options are not allowed together\n"," ");
    
    FPS "\n%-20s Generates a new private-public key pair and corresponding\n",
	"-G nickname");
    FPS "%-20s object-signing certificates with the given nickname\n"," ");
    FPS "%-30s Specifies the size of the key for generated \n",
	"   --keysize|-s keysize");
    FPS "%-30s certificate\n"," ");
    FPS "%-30s Specifies which available token should generate\n",
	"   --token|-t token name ");
    FPS "%-30s the key and receive the certificate\n"," ");
    FPS "%-30s Specifies a file to receive redirected output\n",
	"   --outfile filename ");
    
    FPS "\n%-20s Display signtool help\n",
	"-h ");
    
    FPS "\n%-20s Display signtool help(Detailed)\n",
	"-H ");
    
    FPS "\n%-20s Lists signing certificates, including issuing CAs\n",
	"-l ");
    FPS "%-30s Certificate database directory containing cert*db\n",
	"   -d certificate directory");
    FPS "%-30s and key*db\n"," ");

    FPS "%-30s Specifies a file to receive redirected output\n",
	"   --outfile filename ");
    FPS "%-30s Specifies the nickname (key) of the certificate\n",
	"   -k keyname");

    
    FPS "\n%-20s Lists the certificates in your database\n",
	"-L ");
    FPS "%-30s Certificate database directory containing cert*db\n",
	"   -d certificate directory");
    FPS "%-30s and key*db\n"," ");

    FPS "%-30s Specifies a file to receive redirected output\n",
	"   --outfile filename ");
    FPS "%-30s Specifies the nickname (key) of the certificate\n",
	"   -k keyname");
    
    FPS "\n%-20s Lists the PKCS #11 modules available to signtool\n",
	"-M ");
   
    FPS "\n%-20s Displays the contents of an archive and verifies\n",
	"-v archive");
    FPS "%-20s cryptographic integrity\n"," ");
    FPS "%-30s Certificate database directory containing cert*db\n",
	"   -d certificate directory");
    FPS "%-30s and key*db\n"," ");
    FPS "%-30s Specifies a file to receive redirected output\n",
	"   --outfile filename ");
    
    FPS "\n%-20s Displays the names of signers in the archive\n",
	"-w archive");
    FPS "%-30s Specifies a file to receive redirected output\n",
	"   --outfile filename ");

    
    FPS "\n%-30s Common option to all the above.\n",
	"   -O");
    FPS "%-30s Enable OCSP checking\n"," ");
    
    FPS "\n%-20s Specifies a text file containing options and arguments in\n",
	"-f command-file");
    FPS "%-20s keyword=value format. Commands are taken from this file\n"," ");

    FPS  "\n\n\n");
    FPS  "Example:\n");
    FPS  "%-10s -d \"certificate directory\" -k \"certnickname\" \\",
         PROGRAM_NAME);
    FPS  "\n%-10s -p \"password\"  -X -Z \"file.xpi\" directory-tree\n"," " );
    FPS  "Common syntax to create an XPInstall compatible"
         " signed archive\n\n"," ");
    FPS  "\nCommand File Keywords and Example:\n");
    FPS "\nKeyword\t\tValue\n");
    FPS "basename\tSame as -b option\n");
    FPS "compression\tSame as -c option\n");
    FPS "certdir\t\tSame as -d option\n");
    FPS "extension\tSame as -e option\n");
    FPS "generate\tSame as -G option\n");
    FPS "installscript\tSame as -i option\n");
    FPS "javascriptdir\tSame as -j option\n");
    FPS "htmldir\t\tSame as -J option\n");
    FPS "certname\tNickname of certificate, as with -k  option\n");
    FPS "signdir\t\tThe directory to be signed, as with -k option\n");
    FPS "list\t\tSame as -l option. Value is ignored,\n"
        "    \t\tbut = sign must be present\n");
    FPS "listall\t\tSame as -L option. Value is ignored\n"
        "       \t\tbut = sign must be present\n");
    FPS "metafile\tSame as -m option\n");
    FPS "modules\t\tSame as -M option. Value is ignored,\n"
        "       \t\tbut = sign must be present\n");
    FPS "optimize\tSame as -o option. Value is ignored,\n" 
        "        \tbut = sign must be present\n");
    FPS "ocsp\t\tSame as -O option\n");
    FPS "password\tSame as -p option\n");
    FPS "verify\t\tSame as -v option\n");
    FPS "who\t\tSame as -w option\n");
    FPS "exclude\t\tSame as -x option\n");
    FPS "notime\t\tSame as -z option. Value is ignored,\n"
        "      \t\tbut = sign must be present\n");
    FPS "jarfile\t\tSame as -Z option\n");
    FPS "outfile\t\tSame as --outfile option. The argument\n");
    FPS "       \t\tis the name of a file to which output\n");
    FPS "       \t\tof a file and error messages will be  \n");
    FPS "       \t\tredirected\n");
    FPS "leavearc\tSame as --leavearc option\n");
    FPS "verbosity\tSame as --verbosity option\n");
    FPS "keysize\t\tSame as -s option\n");
    FPS "token\t\tSame as -t option\n");
    FPS "xpi\t\tSame as -X option\n");
    FPS "\n\n");
    FPS "Here's an example of the use of the command file. The command\n\n");
    FPS "   signtool -d c:\\netscape\\users\\james -k mycert -Z myjar.jar \\\n"
        "   signdir > output.txt\n\n"); 
    FPS "becomes\n\n");
    FPS "   signtool -f somefile\n\n");
    FPS "where somefile contains the following lines:\n\n");
    FPS "   certdir=c:\\netscape\\users\\james\n"," "); 
    FPS "   certname=mycert\n"," "); 
    FPS "   jarfile=myjar.jar\n"," "); 
    FPS "   signdir=signdir\n"," "); 
    FPS "   outfile=output.txt\n"," "); 
    exit (ERRX);
#undef FPS
}

/*
 *  p r i n t _ e r r o r
 *
 *  For the undocumented -E function. If an older version
 *  of communicator gives you a numeric error, we can see what
 *  really happened without doing hex math.
 *
 */

void
print_error (int err)
{
    PR_fprintf(errorFD, "Error %d: %s\n", err, JAR_get_error (err));
    errorCount++;
    give_help (err);
}


/*
 *  o u t _ o f _ m e m o r y
 *
 *  Out of memory, exit Signtool.
 * 
 */
void
out_of_memory (void)
{
    PR_fprintf(errorFD, "%s: out of memory\n", PROGRAM_NAME);
    errorCount++;
    exit (ERRX);
}


/*
 *  V e r i f y C e r t D i r
 *
 *  Validate that the specified directory
 *  contains a certificate database
 *
 */
void
VerifyCertDir(char *dir, char *keyName)
{
    char	fn [FNSIZE];

    /* don't try verifying if we don't have a local directory */
    if (strncmp(dir, "multiaccess:", sizeof("multiaccess:") - 1) == 0) {
	return;
    }
    /* this function is truly evil. Tools and applications should not have
     * any knowledge of actual cert databases! */
    return;

    /* This code is really broken because it makes underlying assumptions about
   * how the NSS profile directory is laid out, but these names can change
   * from release to release. */
    sprintf (fn, "%s/cert8.db", dir);

    if (PR_Access (fn, PR_ACCESS_EXISTS)) {
	PR_fprintf(errorFD, "%s: No certificate database in \"%s\"\n",
			 PROGRAM_NAME, dir);
	PR_fprintf(errorFD, "%s: Check the -d arguments that you gave\n",
	     		PROGRAM_NAME);
	errorCount++;
	exit (ERRX);
    }

    if (verbosity >= 0) {
	PR_fprintf(outputFD, "using certificate directory: %s\n", dir);
    }

    if (keyName == NULL)
	return;

    /* if the user gave the -k key argument, verify that 
     a key database already exists */

    sprintf (fn, "%s/key3.db", dir);

    if (PR_Access (fn, PR_ACCESS_EXISTS)) {
	PR_fprintf(errorFD, "%s: No private key database in \"%s\"\n",
	     PROGRAM_NAME,
	    dir);
	PR_fprintf(errorFD, "%s: Check the -d arguments that you gave\n",
	     		PROGRAM_NAME);
	errorCount++;
	exit (ERRX);
    }
}


/*
 *  f o r e a c h 
 * 
 *  A recursive function to loop through all names in
 *  the specified directory, as well as all subdirectories.
 *
 *  FIX: Need to see if all platforms allow multiple
 *  opendir's to be called.
 *
 */

int
foreach(char *dirname, char *prefix, 
int (*fn)(char *relpath, char *basedir, char *reldir, char *filename,
void*arg),
PRBool recurse, PRBool includeDirs, void *arg) 
{
    char	newdir [FNSIZE];
    int	retval = 0;

    PRDir * dir;
    PRDirEntry * entry;

    strcpy (newdir, dirname);
    if (*prefix) {
	strcat (newdir, "/");
	strcat (newdir, prefix);
    }

    dir = PR_OpenDir (newdir);
    if (!dir) 
	return - 1;

    for (entry = PR_ReadDir (dir, 0); entry; entry = PR_ReadDir (dir, 0)) {
	if ( strcmp(entry->name, ".") == 0   || 
	    strcmp(entry->name, "..") == 0 ) {
	    /* no infinite recursion, please */
	    continue;
	}

	/* can't sign self */
	if (!strcmp (entry->name, "META-INF"))
	    continue;

	/* -x option */
	if (PL_HashTableLookup(excludeDirs, entry->name))
	    continue;

	strcpy (newdir, dirname);
	if (*dirname)
	    strcat (newdir, "/");

	if (*prefix) {
	    strcat (newdir, prefix);
	    strcat (newdir, "/");
	}
	strcat (newdir, entry->name);

	if (!is_dir(newdir) || includeDirs) {
	    char	newpath [FNSIZE];

	    strcpy (newpath, prefix);
	    if (*newpath)
		strcat (newpath, "/");
	    strcat (newpath, entry->name);

	    if ( (*fn) (newpath, dirname, prefix, (char *) entry->name,
	         arg)) {
		retval = -1;
		break;
	    }
	}

	if (is_dir (newdir)) {
	    if (recurse) {
		char	newprefix [FNSIZE];

		strcpy (newprefix, prefix);
		if (*newprefix) {
		    strcat (newprefix, "/");
		}
		strcat (newprefix, entry->name);

		if (foreach (dirname, newprefix, fn, recurse,
		     includeDirs, arg)) {
		    retval = -1;
		    break;
		}
	    }
	}

    }

    PR_CloseDir (dir);

    return retval;
}


/*
 *  i s _ d i r
 *
 *  Return 1 if file is a directory.
 *  Wonder if this runs on a mac, trust not.
 *
 */
static int	is_dir (char *filename)
{
    PRFileInfo	finfo;

    if ( PR_GetFileInfo(filename, &finfo) != PR_SUCCESS ) {
	printf("Unable to get information about %s\n", filename);
	return 0;
    }

    return ( finfo.type == PR_FILE_DIRECTORY );
}


/***************************************************************
 *
 * s e c E r r o r S t r i n g
 *
 * Returns an error string corresponding to the given error code.
 * Doesn't cover all errors; returns a default for many.
 * Returned string is only valid until the next call of this function.
 */
const char	*
secErrorString(long code)
{
    static char	errstring[80]; /* dynamically constructed error string */
    char	*c; /* the returned string */

    switch (code) {
    case SEC_ERROR_IO: 
	c = "io error";
	break;
    case SEC_ERROR_LIBRARY_FAILURE: 
	c = "security library failure";
	break;
    case SEC_ERROR_BAD_DATA: 
	c = "bad data";
	break;
    case SEC_ERROR_OUTPUT_LEN: 
	c = "output length";
	break;
    case SEC_ERROR_INPUT_LEN: 
	c = "input length";
	break;
    case SEC_ERROR_INVALID_ARGS: 
	c = "invalid args";
	break;
    case SEC_ERROR_EXPIRED_CERTIFICATE: 
	c = "expired certificate";
	break;
    case SEC_ERROR_REVOKED_CERTIFICATE: 
	c = "revoked certificate";
	break;
    case SEC_ERROR_INADEQUATE_KEY_USAGE: 
	c = "inadequate key usage";
	break;
    case SEC_ERROR_INADEQUATE_CERT_TYPE: 
	c = "inadequate certificate type";
	break;
    case SEC_ERROR_UNTRUSTED_CERT: 
	c = "untrusted cert";
	break;
    case SEC_ERROR_NO_KRL: 
	c = "no key revocation list";
	break;
    case SEC_ERROR_KRL_BAD_SIGNATURE: 
	c = "key revocation list: bad signature";
	break;
    case SEC_ERROR_KRL_EXPIRED: 
	c = "key revocation list expired";
	break;
    case SEC_ERROR_REVOKED_KEY: 
	c = "revoked key";
	break;
    case SEC_ERROR_CRL_BAD_SIGNATURE:
	c = "certificate revocation list: bad signature";
	break;
    case SEC_ERROR_CRL_EXPIRED: 
	c = "certificate revocation list expired";
	break;
    case SEC_ERROR_CRL_NOT_YET_VALID:
	c = "certificate revocation list not yet valid";
	break;
    case SEC_ERROR_UNKNOWN_ISSUER: 
	c = "unknown issuer";
	break;
    case SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE: 
	c = "expired issuer certificate";
	break;
    case SEC_ERROR_BAD_SIGNATURE: 
	c = "bad signature";
	break;
    case SEC_ERROR_BAD_KEY: 
	c = "bad key";
	break;
    case SEC_ERROR_NOT_FORTEZZA_ISSUER: 
	c = "not fortezza issuer";
	break;
    case SEC_ERROR_CA_CERT_INVALID:
	c = "Certificate Authority certificate invalid";
	break;
    case SEC_ERROR_EXTENSION_NOT_FOUND: 
	c = "extension not found";
	break;
    case SEC_ERROR_CERT_NOT_IN_NAME_SPACE: 
	c = "certificate not in name space";
	break;
    case SEC_ERROR_UNTRUSTED_ISSUER: 
	c = "untrusted issuer";
	break;
    default:
	sprintf(errstring, "security error %ld", code);
	c = errstring;
	break;
    }

    return c;
}


/***************************************************************
 *
 * d i s p l a y V e r i f y L o g
 *
 * Prints the log of a cert verification.
 */
void
displayVerifyLog(CERTVerifyLog *log)
{
    CERTVerifyLogNode	 * node;
    CERTCertificate		 * cert;
    char	*name;

    if ( !log  || (log->count <= 0) ) {
	return;
    }

    for (node = log->head; node != NULL; node = node->next) {

	if ( !(cert = node->cert) ) {
	    continue;
	}

	/* Get a name for this cert */
	if (cert->nickname != NULL) {
	    name = cert->nickname;
	} else if (cert->emailAddr && cert->emailAddr[0]) {
	    name = cert->emailAddr;
	} else {
	    name = cert->subjectName;
	}

	printf( "%s%s:\n", name,
	    (node->depth > 0) ? " [Certificate Authority]" : "");

	printf("\t%s\n", secErrorString(node->error));

    }
}


/*
 *  J a r L i s t M o d u l e s
 *
 *  Print a list of the PKCS11 modules that are
 *  available. This is useful for smartcard people to
 *  make sure they have the drivers loaded.
 *
 */
void
JarListModules(void)
{
    int	i;
    int	count = 0;

    SECMODModuleList * modules = NULL;
    static SECMODListLock *moduleLock = NULL;

    SECMODModuleList * mlp;

    if ((moduleLock = SECMOD_GetDefaultModuleListLock()) == NULL) {
	/* this is the wrong text */
	PR_fprintf(errorFD, "%s: unable to acquire lock on module list\n",
	     		PROGRAM_NAME);
	errorCount++;
	exit (ERRX);
    }

    SECMOD_GetReadLock (moduleLock);

    modules = SECMOD_GetDefaultModuleList();

    if (modules == NULL) {
	SECMOD_ReleaseReadLock (moduleLock);
	PR_fprintf(errorFD, "%s: Can't get module list\n", PROGRAM_NAME);
	errorCount++;
	exit (ERRX);
    }

    PR_fprintf(outputFD, "\nListing of PKCS11 modules\n");
    PR_fprintf(outputFD, "-----------------------------------------------\n");

    for (mlp = modules; mlp != NULL; mlp = mlp->next) {
	count++;
	PR_fprintf(outputFD, "%3d. %s\n", count, mlp->module->commonName);

	if (mlp->module->internal)
	    PR_fprintf(outputFD, "          (this module is internally loaded)\n");
	else
	    PR_fprintf(outputFD, "          (this is an external module)\n");

	if (mlp->module->dllName)
	    PR_fprintf(outputFD, "          DLL name: %s\n",
	        mlp->module->dllName);

	if (mlp->module->slotCount == 0)
	    PR_fprintf(outputFD, "          slots: There are no slots attached to this module\n");
	else
	    PR_fprintf(outputFD, "          slots: %d slots attached\n",
	         mlp->module->slotCount);

	if (mlp->module->loaded == 0)
	    PR_fprintf(outputFD, "          status: Not loaded\n");
	else
	    PR_fprintf(outputFD, "          status: loaded\n");

	for (i = 0; i < mlp->module->slotCount; i++) {
	    PK11SlotInfo * slot = mlp->module->slots[i];

	    PR_fprintf(outputFD, "\n");
	    PR_fprintf(outputFD, "    slot: %s\n", PK11_GetSlotName(slot));
	    PR_fprintf(outputFD, "   token: %s\n", PK11_GetTokenName(slot));
	}
    }

    PR_fprintf(outputFD, "-----------------------------------------------\n");

    if (count == 0)
	PR_fprintf(outputFD,
	    "Warning: no modules were found (should have at least one)\n");

    SECMOD_ReleaseReadLock (moduleLock);
}


/**********************************************************************
 * c h o p
 *
 * Eliminates leading and trailing whitespace.  Returns a pointer to the 
 * beginning of non-whitespace, or an empty string if it's all whitespace.
 */
char*
chop(char *str)
{
    char	*start, *end;

    if (str) {
	start = str;

	/* Nip leading whitespace */
	while (isspace(*start)) {
	    start++;
	}

	/* Nip trailing whitespace */
	if (*start) {
	    end = start + strlen(start) - 1;
	    while (isspace(*end) && end > start) {
		end--;
	    }
	    *(end + 1) = '\0';
	}

	return start;
    } else {
	return NULL;
    }
}


/***********************************************************************
 *
 * F a t a l E r r o r
 *
 * Outputs an error message and bails out of the program.
 */
void
FatalError(char *msg)
{
    if (!msg) 
	msg = "";

    PR_fprintf(errorFD, "FATAL ERROR: %s\n", msg);
    errorCount++;
    exit(ERRX);
}


/*************************************************************************
 *
 * I n i t C r y p t o
 */
int
InitCrypto(char *cert_dir, PRBool readOnly)
{
    SECStatus rv;
    static int	prior = 0;
    PK11SlotInfo * slotinfo;

    if (prior == 0) {
	/* some functions such as OpenKeyDB expect this path to be
	 * implicitly set prior to calling */
	if (readOnly) {
	    rv = NSS_Init(cert_dir);
	} else {
	    rv = NSS_InitReadWrite(cert_dir);
	}
	if (rv != SECSuccess) {
	    SECU_PrintPRandOSError(PROGRAM_NAME);
	    exit(-1);
	}

	SECU_ConfigDirectory (cert_dir);

	/* Been there done that */
	prior++;

        PK11_SetPasswordFunc(SECU_GetModulePassword);

	/* Must login to FIPS before you do anything else */
	if (PK11_IsFIPS()) {
	    slotinfo = PK11_GetInternalSlot();
	    if (!slotinfo) {
		fprintf(stderr, "%s: Unable to get PKCS #11 Internal Slot."
				    "\n", PROGRAM_NAME);
		return - 1;
	    }
	    if (PK11_Authenticate(slotinfo, PR_FALSE /*loadCerts*/,
	         			  &pwdata) != SECSuccess) {
		fprintf(stderr, "%s: Unable to authenticate to %s.\n",
				    PROGRAM_NAME, PK11_GetSlotName(slotinfo));
		PK11_FreeSlot(slotinfo);
		return - 1;
	    }
	    PK11_FreeSlot(slotinfo);
	}

	/* Make sure there is a password set on the internal key slot */
	slotinfo = PK11_GetInternalKeySlot();
	if (!slotinfo) {
	    fprintf(stderr, "%s: Unable to get PKCS #11 Internal Key Slot."
	        "\n", PROGRAM_NAME);
	    return - 1;
	}
	if (PK11_NeedUserInit(slotinfo)) {
	    PR_fprintf(errorFD,
	        "\nWARNING: No password set on internal key database.  Most operations will fail."
	        "\nYou must create a password.\n");
	    warningCount++;
	}

	/* Make sure we can authenticate to the key slot in FIPS mode */
	if (PK11_IsFIPS()) {
	    if (PK11_Authenticate(slotinfo, PR_FALSE /*loadCerts*/,
	         			  &pwdata) != SECSuccess) {
		fprintf(stderr, "%s: Unable to authenticate to %s.\n",
				PROGRAM_NAME, PK11_GetSlotName(slotinfo));
		PK11_FreeSlot(slotinfo);
		return - 1;
	    }
	}
	PK11_FreeSlot(slotinfo);
    }

    return 0;
}


/* Windows foolishness is now in the secutil lib */

/*****************************************************************
 *  g e t _ d e f a u l t _ c e r t _ d i r
 *
 *  Attempt to locate a certificate directory.
 *  Failing that, complain that the user needs to
 *  use the -d(irectory) parameter.
 *
 */
char	*get_default_cert_dir (void)
{
    char	*home;

    char	*cd = NULL;
    static char	db [FNSIZE];

#ifdef XP_UNIX
    home = getenv ("HOME");

    if (home && *home) {
	sprintf (db, "%s/.netscape", home);
	cd = db;
    }
#endif

#ifdef XP_PC
    FILE * fp;

    /* first check the environment override */

    home = getenv ("JAR_HOME");

    if (home && *home) {
	sprintf (db, "%s/cert7.db", home);

	if ((fp = fopen (db, "r")) != NULL) {
	    fclose (fp);
	    cd = home;
	}
    }

    /* try the old navigator directory */

    if (cd == NULL) {
	home = "c:/Program Files/Netscape/Navigator";

	sprintf (db, "%s/cert7.db", home);

	if ((fp = fopen (db, "r")) != NULL) {
	    fclose (fp);
	    cd = home;
	}
    }

    /* Try the current directory, I wonder if this
     is really a good idea. Remember, Windows only.. */

    if (cd == NULL) {
	home = ".";

	sprintf (db, "%s/cert7.db", home);

	if ((fp = fopen (db, "r")) != NULL) {
	    fclose (fp);
	    cd = home;
	}
    }

#endif

    if (!cd) {
	PR_fprintf(errorFD,
	    "You must specify the location of your certificate directory\n");
	PR_fprintf(errorFD,
	    "with the -d option. Example: -d ~/.netscape in many cases with Unix.\n");
	errorCount++;
	exit (ERRX);
    }

    return cd;
}


/************************************************************************
 * g i v e _ h e l p
 */
void	give_help (int status)
{
    if (status == SEC_ERROR_UNKNOWN_ISSUER) {
	PR_fprintf(errorFD,
	    "The Certificate Authority (CA) for this certificate\n");
	PR_fprintf(errorFD,
	    "does not appear to be in your database. You should contact\n");
	PR_fprintf(errorFD,
	    "the organization which issued this certificate to obtain\n");
	PR_fprintf(errorFD, "a copy of its CA Certificate.\n");
    }
}


/**************************************************************************
 *
 * p r _ f g e t s
 *
 * fgets implemented with NSPR.
 */
char*
pr_fgets(char *buf, int size, PRFileDesc *file)
{
    int	i;
    int	status;
    char	c;

    i = 0;
    while (i < size - 1) {
	status = PR_Read(file, &c, 1);
	if (status == -1) {
	    return NULL;
	} else if (status == 0) {
	    if (i == 0) {
		return NULL;
	    }
	    break;
	}
	buf[i++] = c;
	if (c == '\n') {
	    break;
	}
    }
    buf[i] = '\0';

    return buf;
}