1/* vi: set sw=4 ts=4: */ 2/* 3 * Copyright (C) 2000 by Glenn McGrath 4 * 5 * based on the function base64_encode from http.c in wget v1.6 6 * Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc. 7 * 8 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. 9 */ 10 11#include "libbb.h" 12 13enum { 14 SRC_BUF_SIZE = 45, /* This *MUST* be a multiple of 3 */ 15 DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3), 16}; 17 18int uuencode_main(int argc, char **argv); 19int uuencode_main(int argc, char **argv) 20{ 21 struct stat stat_buf; 22 int src_fd = STDIN_FILENO; 23 const char *tbl; 24 mode_t mode; 25 char src_buf[SRC_BUF_SIZE]; 26 char dst_buf[DST_BUF_SIZE + 1]; 27 28 tbl = bb_uuenc_tbl_std; 29 mode = 0666 & ~umask(0666); 30 opt_complementary = "-1:?2"; /* must have 1 or 2 args */ 31 if (getopt32(argv, "m")) { 32 tbl = bb_uuenc_tbl_base64; 33 } 34 argv += optind; 35 if (argc == optind + 2) { 36 src_fd = xopen(*argv, O_RDONLY); 37 fstat(src_fd, &stat_buf); 38 mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 39 argv++; 40 } 41 42 printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, *argv); 43 while (1) { 44 size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE); 45 if (!size) 46 break; 47 if ((ssize_t)size < 0) 48 bb_perror_msg_and_die(bb_msg_read_error); 49 /* Encode the buffer we just read in */ 50 bb_uuencode(dst_buf, src_buf, size, tbl); 51 putchar('\n'); 52 if (tbl == bb_uuenc_tbl_std) { 53 putchar(tbl[size]); 54 } 55 fflush(stdout); 56 xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3)); 57 } 58 printf(tbl == bb_uuenc_tbl_std ? "\n`\nend\n" : "\n====\n"); 59 60 fflush_stdout_and_exit(EXIT_SUCCESS); 61} 62