/* vi: set sw=4 ts=4: */
/*
- * Copyright 2003, Glenn McGrath
+ * Copyright 2003, Glenn McGrath
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
- * Based on specification from
- * http://www.opengroup.org/onlinepubs/007904975/utilities/uuencode.html
+ * Based on specification from
+ * http://www.opengroup.org/onlinepubs/007904975/utilities/uuencode.html
*
- * Bugs: the spec doesn't mention anything about "`\n`\n" prior to the
- * "end" line
+ * Bugs: the spec doesn't mention anything about "`\n`\n" prior to the
+ * "end" line
*/
-
-
#include "libbb.h"
-static void read_stduu(FILE *src_stream, FILE *dst_stream)
+#if ENABLE_UUDECODE
+static void FAST_FUNC read_stduu(FILE *src_stream, FILE *dst_stream, int flags UNUSED_PARAM)
{
char *line;
}
bb_error_msg_and_die("short file");
}
+#endif
-static void read_base64(FILE *src_stream, FILE *dst_stream)
-{
- int term_count = 1;
-
- while (1) {
- char translated[4];
- int count = 0;
-
- while (count < 4) {
- char *table_ptr;
- int ch;
-
- /* Get next _valid_ character.
- * global vector bb_uuenc_tbl_base64[] contains this string:
- * "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n"
- */
- do {
- ch = fgetc(src_stream);
- if (ch == EOF) {
- bb_error_msg_and_die("short file");
- }
- table_ptr = strchr(bb_uuenc_tbl_base64, ch);
- } while (table_ptr == NULL);
-
- /* Convert encoded character to decimal */
- ch = table_ptr - bb_uuenc_tbl_base64;
-
- if (*table_ptr == '=') {
- if (term_count == 0) {
- translated[count] = '\0';
- break;
- }
- term_count++;
- } else if (*table_ptr == '\n') {
- /* Check for terminating line */
- if (term_count == 5) {
- return;
- }
- term_count = 1;
- continue;
- } else {
- translated[count] = ch;
- count++;
- term_count = 0;
- }
- }
-
- /* Merge 6 bit chars to 8 bit */
- if (count > 1) {
- fputc(translated[0] << 2 | translated[1] >> 4, dst_stream);
- }
- if (count > 2) {
- fputc(translated[1] << 4 | translated[2] >> 2, dst_stream);
- }
- if (count > 3) {
- fputc(translated[2] << 6 | translated[3], dst_stream);
- }
- }
-}
-
+#if ENABLE_UUDECODE
int uudecode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int uudecode_main(int argc UNUSED_PARAM, char **argv)
{
getopt32(argv, "o:", &outname);
argv += optind;
- if (!*argv)
+ if (!argv[0])
*--argv = (char*)"-";
- src_stream = xfopen_stdin(*argv);
+ src_stream = xfopen_stdin(argv[0]);
/* Search for the start of the encoding */
while ((line = xmalloc_fgetline(src_stream)) != NULL) {
- void (*decode_fn_ptr)(FILE *src, FILE *dst);
+ void FAST_FUNC (*decode_fn_ptr)(FILE *src, FILE *dst, int flags);
char *line_ptr;
FILE *dst_stream;
int mode;
}
dst_stream = stdout;
if (NOT_LONE_DASH(outname)) {
- dst_stream = xfopen(outname, "w");
+ dst_stream = xfopen_for_write(outname);
fchmod(fileno(dst_stream), mode & (S_IRWXU | S_IRWXG | S_IRWXO));
}
free(line);
- decode_fn_ptr(src_stream, dst_stream);
+ decode_fn_ptr(src_stream, dst_stream, /*flags:*/ BASE64_FLAG_UU_STOP + BASE64_FLAG_NO_STOP_CHAR);
/* fclose_if_not_stdin(src_stream); - redundant */
return EXIT_SUCCESS;
}
bb_error_msg_and_die("no 'begin' line");
}
+#endif
+
+//applet:IF_BASE64(APPLET(base64, BB_DIR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_BASE64) += uudecode.o
+
+//config:config BASE64
+//config: bool "base64"
+//config: default y
+//config: help
+//config: Base64 encode and decode
+
+//usage:#define base64_trivial_usage
+//usage: "[-d] [FILE]"
+//usage:#define base64_full_usage "\n\n"
+//usage: "Base64 encode or decode FILE to standard output"
+//usage: "\nOptions:"
+//usage: "\n -d Decode data"
+////usage: "\n -w COL Wrap lines at COL (default 76, 0 disables)"
+////usage: "\n -i When decoding, ignore non-alphabet characters"
+
+#if ENABLE_BASE64
+int base64_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int base64_main(int argc UNUSED_PARAM, char **argv)
+{
+ FILE *src_stream;
+ unsigned opts;
+
+ opt_complementary = "?1"; /* 1 argument max */
+ opts = getopt32(argv, "d");
+ argv += optind;
+
+ if (!argv[0])
+ *--argv = (char*)"-";
+ src_stream = xfopen_stdin(argv[0]);
+ if (opts) {
+ read_base64(src_stream, stdout, /*flags:*/ (char)EOF);
+ } else {
+ enum {
+ SRC_BUF_SIZE = 76/4*3, /* This *MUST* be a multiple of 3 */
+ DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3),
+ };
+ char src_buf[SRC_BUF_SIZE];
+ char dst_buf[DST_BUF_SIZE + 1];
+ int src_fd = fileno(src_stream);
+ while (1) {
+ size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE);
+ if (!size)
+ break;
+ if ((ssize_t)size < 0)
+ bb_perror_msg_and_die(bb_msg_read_error);
+ /* Encode the buffer we just read in */
+ bb_uuencode(dst_buf, src_buf, size, bb_uuenc_tbl_base64);
+ xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3));
+ bb_putchar('\n');
+ fflush(stdout);
+ }
+ }
+
+ fflush_stdout_and_exit(EXIT_SUCCESS);
+}
+#endif
/* Test script.
Put this into an empty dir with busybox binary, an run.
projects / oweals / busybox.git / blobdiff