diff options
Diffstat (limited to 'security/nss/cmd/btoa/btoa.c')
| -rw-r--r-- | security/nss/cmd/btoa/btoa.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/security/nss/cmd/btoa/btoa.c b/security/nss/cmd/btoa/btoa.c new file mode 100644 index 000000000..2a5e6d4c6 --- /dev/null +++ b/security/nss/cmd/btoa/btoa.c @@ -0,0 +1,203 @@ +/* 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", + ""); + exit(-1); +} + +int +main(int argc, char **argv) +{ + char *progName; + SECStatus rv; + FILE *inFile, *outFile; + PLOptState *optstate; + PLOptStatus status; + char *suffix = NULL; + + inFile = 0; + outFile = 0; + 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:"); + while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) { + switch (optstate->option) { + default: + Usage(progName); + break; + + case 'i': + inFile = fopen(optstate->value, "rb"); + if (!inFile) { + fprintf(stderr, "%s: unable to open \"%s\" for reading\n", + progName, optstate->value); + return -1; + } + break; + + case 'o': + outFile = fopen(optstate->value, "wb"); + if (!outFile) { + fprintf(stderr, "%s: unable to open \"%s\" for writing\n", + progName, optstate->value); + return -1; + } + 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); + return smrv; + } +#endif + inFile = stdin; + } + 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); + return smrv; + } +#endif + outFile = stdout; + } + 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); + return -1; + } + if (suffix) { + fprintf(outFile, "-----END %s-----\n", suffix); + } + return 0; +} |