From 7e0f021a9aec35fd8e6725e87e3313b101d26f5e Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Sun, 27 Jan 2008 11:37:44 +0100 Subject: Initial import (2.0.2-6) --- reference/C/CONTRIB/OR_USING_C/02.3.c | 50 +++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 reference/C/CONTRIB/OR_USING_C/02.3.c (limited to 'reference/C/CONTRIB/OR_USING_C/02.3.c') diff --git a/reference/C/CONTRIB/OR_USING_C/02.3.c b/reference/C/CONTRIB/OR_USING_C/02.3.c new file mode 100644 index 0000000..e669d00 --- /dev/null +++ b/reference/C/CONTRIB/OR_USING_C/02.3.c @@ -0,0 +1,50 @@ +#include + +main(argc, argv) +int argc; +char **argv; +{ + int n; + FILE *from, *to; + char buf[BUFSIZ]; + + /* + * Check our arguments. + */ + if (argc != 3) { + fprintf(stderr, "Usage: %s from-file to-file\n", *argv); + exit(1); + } + + /* + * Open the from-file for reading. + */ + if ((from = fopen(argv[1], "r")) == NULL) { + perror(argv[1]); + exit(1); + } + + /* + * Open the to-file for appending. If to-file does + * not exist, fopen will create it. + */ + if ((to = fopen(argv[2], "a")) == NULL) { + perror(argv[2]); + exit(1); + } + + /* + * Note that we only write the number of characters fread + * read in, rather than always writing BUFSIZ characters. + */ + while ((n = fread(buf, sizeof(char), BUFSIZ, from)) > 0) + fwrite(buf, sizeof(char), n, to); + + /* + * Now close the files. + */ + fclose(from); + fclose(to); + exit(0); +} + -- cgit v1.2.3-54-g00ecf