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/* 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 "plgetopt.h"
#include "secutil.h"
#include "nssb64.h"
#include <errno.h>
#if defined(XP_WIN) || (defined(__sun) && !defined(SVR4))
#if !defined(WIN32)
extern int fread(char *, size_t, size_t, FILE *);
extern int fwrite(char *, size_t, size_t, FILE *);
extern int fprintf(FILE *, char *, ...);
#endif
#endif
#if defined(WIN32)
#include "fcntl.h"
#include "io.h"
#endif
static PRInt32
output_ascii(void *arg, const char *obuf, PRInt32 size)
{
FILE *outFile = arg;
int nb;
nb = fwrite(obuf, 1, size, outFile);
if (nb != size) {
PORT_SetError(SEC_ERROR_IO);
return -1;
}
return nb;
}
static SECStatus
encode_file(FILE *outFile, FILE *inFile)
{
NSSBase64Encoder *cx;
int nb;
SECStatus status = SECFailure;
unsigned char ibuf[4096];
cx = NSSBase64Encoder_Create(output_ascii, outFile);
if (!cx) {
return -1;
}
for (;;) {
if (feof(inFile))
break;
nb = fread(ibuf, 1, sizeof(ibuf), inFile);
if (nb != sizeof(ibuf)) {
if (nb == 0) {
if (ferror(inFile)) {
PORT_SetError(SEC_ERROR_IO);
goto loser;
}
/* eof */
break;
}
}
status = NSSBase64Encoder_Update(cx, ibuf, nb);
if (status != SECSuccess)
goto loser;
}
status = NSSBase64Encoder_Destroy(cx, PR_FALSE);
if (status != SECSuccess)
return status;
/*
* Add a trailing CRLF. Note this must be done *after* the call
* to Destroy above (because only then are we sure all data has
* been written out).
*/
fwrite("\r\n", 1, 2, outFile);
return SECSuccess;
loser:
(void)NSSBase64Encoder_Destroy(cx, PR_TRUE);
return status;
}
static void
Usage(char *progName)
{
fprintf(stderr,
"Usage: %s [-i input] [-o output]\n",
progName);
fprintf(stderr, "%-20s Define an input file to use (default is stdin)\n",
"-i input");
fprintf(stderr, "%-20s Define an output file to use (default is stdout)\n",
"-o output");
fprintf(stderr, "%-20s Wrap output in BEGIN/END lines and the given suffix\n",
"-w suffix");
fprintf(stderr, "%-20s (use \"c\" as a shortcut for suffix CERTIFICATE)\n",
"");
}
int
main(int argc, char **argv)
{
char *progName;
SECStatus rv;
FILE *inFile = NULL, *outFile = NULL;
PRBool closeIn = PR_TRUE, closeOut = PR_TRUE;
PLOptState *optstate = NULL;
PLOptStatus status;
char *suffix = NULL;
int exitCode = -1;
progName = strrchr(argv[0], '/');
if (!progName)
progName = strrchr(argv[0], '\\');
progName = progName ? progName + 1 : argv[0];
/* Parse command line arguments */
optstate = PL_CreateOptState(argc, argv, "i:o:w:");
PORT_Assert(optstate);
while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) {
switch (optstate->option) {
default:
Usage(progName);
goto loser;
break;
case 'i':
inFile = fopen(optstate->value, "rb");
if (!inFile) {
fprintf(stderr, "%s: unable to open \"%s\" for reading\n",
progName, optstate->value);
goto loser;
}
break;
case 'o':
outFile = fopen(optstate->value, "wb");
if (!outFile) {
fprintf(stderr, "%s: unable to open \"%s\" for writing\n",
progName, optstate->value);
goto loser;
}
break;
case 'w':
if (!strcmp(optstate->value, "c"))
suffix = strdup("CERTIFICATE");
else
suffix = strdup(optstate->value);
break;
}
}
if (status == PL_OPT_BAD)
Usage(progName);
if (!inFile) {
#if defined(WIN32)
/* If we're going to read binary data from stdin, we must put stdin
** into O_BINARY mode or else incoming \r\n's will become \n's.
*/
int smrv = _setmode(_fileno(stdin), _O_BINARY);
if (smrv == -1) {
fprintf(stderr,
"%s: Cannot change stdin to binary mode. Use -i option instead.\n",
progName);
goto loser;
}
#endif
inFile = stdin;
closeIn = PR_FALSE;
}
if (!outFile) {
#if defined(WIN32)
/* We're going to write binary data to stdout. We must put stdout
** into O_BINARY mode or else outgoing \r\n's will become \r\r\n's.
*/
int smrv = _setmode(_fileno(stdout), _O_BINARY);
if (smrv == -1) {
fprintf(stderr,
"%s: Cannot change stdout to binary mode. Use -o option instead.\n",
progName);
goto loser;
}
#endif
outFile = stdout;
closeOut = PR_FALSE;
}
if (suffix) {
fprintf(outFile, "-----BEGIN %s-----\n", suffix);
}
rv = encode_file(outFile, inFile);
if (rv != SECSuccess) {
fprintf(stderr, "%s: lossage: error=%d errno=%d\n",
progName, PORT_GetError(), errno);
goto loser;
}
if (suffix) {
fprintf(outFile, "-----END %s-----\n", suffix);
}
exitCode = 0;
loser:
PL_DestroyOptState(optstate);
if (inFile && closeIn) {
fclose(inFile);
}
if (outFile && closeOut) {
fclose(outFile);
}
return exitCode;
}