rawttytestchild.c (1398B)
1 /* 2 3 rawttytestchild -- test program to be run with rawtty 4 5 Copyright (C) 2013 Tomas Hlavaty <tom at logand.com> 6 7 Permission is hereby granted, free of charge, to any person 8 obtaining a copy of this software and associated documentation files 9 (the "Software"), to deal in the Software without restriction, 10 including without limitation the rights to use, copy, modify, merge, 11 publish, distribute, sublicense, and/or sell copies of the Software, 12 and to permit persons to whom the Software is furnished to do so, 13 subject to the following conditions: 14 15 The above copyright notice and this permission notice shall be 16 included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 22 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 23 ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 25 SOFTWARE. 26 27 */ 28 29 #include <unistd.h> 30 #include <stdlib.h> 31 32 int main() { 33 unsigned char c; 34 while(0 < read(STDIN_FILENO, &c, 1)) { 35 if(c < 'a' || 'z' < c) break; 36 c += 'A' - 'a'; 37 write(STDOUT_FILENO, &c, 1); 38 } 39 return 0; 40 }