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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /security/nss/cmd/atob/atob.c | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'security/nss/cmd/atob/atob.c')
-rw-r--r-- | security/nss/cmd/atob/atob.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/security/nss/cmd/atob/atob.c b/security/nss/cmd/atob/atob.c new file mode 100644 index 0000000000..3e15ceadb0 --- /dev/null +++ b/security/nss/cmd/atob/atob.c @@ -0,0 +1,188 @@ +/* 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_binary(void *arg, const unsigned 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 PRBool +isBase64Char(char c) +{ + return ((c >= 'A' && c <= 'Z') || + (c >= 'a' && c <= 'z') || + (c >= '0' && c <= '9') || + c == '+' || c == '/' || + c == '='); +} + +static SECStatus +decode_file(FILE *outFile, FILE *inFile) +{ + NSSBase64Decoder *cx; + SECStatus status = SECFailure; + char ibuf[4096]; + const char *ptr; + + cx = NSSBase64Decoder_Create(output_binary, outFile); + if (!cx) { + return -1; + } + + for (;;) { + if (feof(inFile)) + break; + if (!fgets(ibuf, sizeof(ibuf), inFile)) { + if (ferror(inFile)) { + PORT_SetError(SEC_ERROR_IO); + goto loser; + } + /* eof */ + break; + } + for (ptr = ibuf; *ptr; ++ptr) { + char c = *ptr; + if (c == '\n' || c == '\r') { + break; /* found end of line */ + } + if (!isBase64Char(c)) { + ptr = ibuf; /* ignore line */ + break; + } + } + if (ibuf == ptr) { + continue; /* skip empty or non-base64 line */ + } + + status = NSSBase64Decoder_Update(cx, ibuf, ptr - ibuf); + if (status != SECSuccess) + goto loser; + } + + return NSSBase64Decoder_Destroy(cx, PR_FALSE); + +loser: + (void)NSSBase64Decoder_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"); +} + +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; + int exitCode = -1; + + progName = strrchr(argv[0], '/'); + progName = progName ? progName + 1 : argv[0]; + + /* Parse command line arguments */ + optstate = PL_CreateOptState(argc, argv, "?hi:o:"); + while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) { + switch (optstate->option) { + case '?': + case 'h': + Usage(progName); + goto loser; + break; + + case 'i': + inFile = fopen(optstate->value, "r"); + 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; + } + } + if (!inFile) { + inFile = stdin; + closeIn = PR_FALSE; + } + if (!outFile) { +#if defined(WIN32) + 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; + } + rv = decode_file(outFile, inFile); + if (rv != SECSuccess) { + fprintf(stderr, "%s: lossage: error=%d errno=%d\n", + progName, PORT_GetError(), errno); + goto loser; + } + exitCode = 0; +loser: + if (optstate) { + PL_DestroyOptState(optstate); + } + if (inFile && closeIn) { + fclose(inFile); + } + if (outFile && closeOut) { + fclose(outFile); + } + return exitCode; +} |