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/* vi: set sw=4 ts=4: */ /* * 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. * * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ #include "libbb.h" #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) { 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; 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); tbl = bb_uuenc_tbl_std; if (getopt32(argc, argv, "m") & 1) { 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(); } 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); } /* Encode the buffer we just read in */ bb_uuencode((unsigned char*)src_buf, dst_buf, size, tbl); 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); } } 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); } |