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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | /* vi: set sw=4 ts=4: */ /* * Mini tee implementation for busybox * * * Copyright (C) 1999 by Lineo, inc. * Written by John Beppu <beppu@lineo.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include "internal.h" #include <stdio.h> static const char tee_usage[] = "tee [OPTION]... [FILE]...\n\n" "Copy standard input to each FILE, and also to standard output.\n\n" "Options:\n" "\t-a\tappend to the given FILEs, do not overwrite\n" #if 0 "\t-i\tignore interrupt signals\n" #endif ; /* FileList _______________________________________________________________ */ #define FL_MAX 1024 static FILE *FileList[FL_MAX]; static int FL_end; typedef void (FL_Function) (FILE * file, char c); /* apply a function to everything in FileList */ static void FL_apply(FL_Function * f, char c) { int i; for (i = 0; i <= FL_end; i++) { f(FileList[i], c); } } /* FL_Function for writing to files*/ static void tee_fwrite(FILE * file, char c) { fputc(c, file); } /* FL_Function for closing files */ static void tee_fclose(FILE * file, char c) { fclose(file); } /* ________________________________________________________________________ */ /* BusyBoxed tee(1) */ int tee_main(int argc, char **argv) { int i; char c; char opt; char opt_fopen[2] = "w"; FILE *file; /* parse argv[] */ for (i = 1; i < argc; i++) { if (argv[i][0] == '-') { opt = argv[i][1]; switch (opt) { case 'a': opt_fopen[0] = 'a'; break; #if 0 case 'i': fprintf(stderr, "ignore interrupt not implemented\n"); break; #endif default: usage(tee_usage); } } else { break; } } /* init FILE pointers */ FL_end = 0; FileList[0] = stdout; for (; i < argc; i++) { /* add a file to FileList */ file = fopen(argv[i], opt_fopen); if (!file) { continue; } if (FL_end < FL_MAX) { FileList[++FL_end] = file; } } /* read and redirect */ while ((c = (char) getchar()) && (!feof(stdin))) { FL_apply(tee_fwrite, c); } /* clean up */ FL_apply(tee_fclose, 0); exit(0); } /* $Id: tee.c,v 1.6 2000/02/08 19:58:47 erik Exp $ */ |