/* vi: set sw=4 ts=4: */
/*
- * Copyright (C) 2000 by Glenn McGrath
+ * Copyright (C) 2000 by Glenn McGrath
*
- * based on the function base64_encode from http.c in wget v1.6
- * Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+ * based on the function base64_encode from http.c in wget v1.6
+ * Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
*
- * 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.
*/
+//config:config UUENCODE
+//config: bool "uuencode (4.6 kb)"
+//config: default y
+//config: help
+//config: uuencode is used to uuencode a file.
+
+//applet:IF_UUENCODE(APPLET(uuencode, BB_DIR_USR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_UUENCODE) += uuencode.o
+
+//usage:#define uuencode_trivial_usage
+//usage: "[-m] [FILE] STORED_FILENAME"
+//usage:#define uuencode_full_usage "\n\n"
+//usage: "Uuencode FILE (or stdin) to stdout\n"
+//usage: "\n -m Use base64 encoding per RFC1521"
+//usage:
+//usage:#define uuencode_example_usage
+//usage: "$ uuencode busybox busybox\n"
+//usage: "begin 755 busybox\n"
+//usage: "<encoded file snipped>\n"
+//usage: "$ uudecode busybox busybox > busybox.uu\n"
+//usage: "$\n"
#include "libbb.h"
+enum {
+ SRC_BUF_SIZE = 15*3, /* This *MUST* be a multiple of 3 */
+ DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3),
+};
-#define SRC_BUF_SIZE 45 // This *MUST* be a multiple of 3
-#define DST_BUF_SIZE 4 * ((SRC_BUF_SIZE + 2) / 3)
-int uuencode_main(int argc, char **argv);
-int uuencode_main(int argc, char **argv)
+int uuencode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int uuencode_main(int argc UNUSED_PARAM, char **argv)
{
- const size_t src_buf_size = SRC_BUF_SIZE;
- const size_t dst_buf_size = DST_BUF_SIZE;
- size_t write_size = dst_buf_size;
struct stat stat_buf;
- FILE *src_stream = stdin;
+ int src_fd = STDIN_FILENO;
const char *tbl;
- size_t size;
mode_t mode;
- RESERVE_CONFIG_BUFFER(src_buf, SRC_BUF_SIZE + 1);
- RESERVE_CONFIG_BUFFER(dst_buf, DST_BUF_SIZE + 1);
+ char src_buf[SRC_BUF_SIZE];
+ char dst_buf[DST_BUF_SIZE + 1];
tbl = bb_uuenc_tbl_std;
- if (getopt32(argc, argv, "m") & 1) {
+ mode = 0666 & ~umask(0666);
+ if (getopt32(argv, "^" "m" "\0" "-1:?2"/*must have 1 or 2 args*/)) {
tbl = bb_uuenc_tbl_base64;
}
-
- switch (argc - optind) {
- case 2:
- src_stream = xfopen(argv[optind], "r");
- xstat(argv[optind], &stat_buf);
- mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
- if (src_stream == stdout) {
- puts("NULL");
- }
- break;
- case 1:
- mode = 0666 & ~umask(0666);
- break;
- default:
- bb_show_usage();
+ argv += optind;
+ if (argv[1]) {
+ src_fd = xopen(argv[0], O_RDONLY);
+ fstat(src_fd, &stat_buf);
+ mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
+ argv++;
}
- printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, argv[argc - 1]);
-
- while ((size = fread(src_buf, 1, src_buf_size, src_stream)) > 0) {
- if (size != src_buf_size) {
- /* write_size is always 60 until the last line */
- write_size = (4 * ((size + 2) / 3));
- /* pad with 0s so we can just encode extra bits */
- memset(&src_buf[size], 0, src_buf_size - size);
- }
+ printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, *argv);
+ 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((unsigned char*)src_buf, dst_buf, size, tbl);
-
- putchar('\n');
+ bb_uuencode(dst_buf, src_buf, size, tbl);
+ bb_putchar('\n');
if (tbl == bb_uuenc_tbl_std) {
- putchar(tbl[size]);
- }
- if (fwrite(dst_buf, 1, write_size, stdout) != write_size) {
- bb_perror_msg_and_die(bb_msg_write_error);
+ bb_putchar(tbl[size]);
}
+ fflush(stdout);
+ xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3));
}
printf(tbl == bb_uuenc_tbl_std ? "\n`\nend\n" : "\n====\n");
- die_if_ferror(src_stream, "source"); /* TODO - Fix this! */
-
fflush_stdout_and_exit(EXIT_SUCCESS);
}