/* * cp */ #include #define CHUNK_SIZE 4096 int main(int argc, char ** argv) { FILE * fd; FILE * fout; if (argc < 3) { fprintf(stderr, "usage: %s [source] [destination]\n", argv[0]); return 1; } fd = fopen(argv[1], "r"); if (!fd) { fprintf(stderr, "%s: %s: no such file or directory\n", argv[0], argv[1]); return 1; } fout = fopen(argv[2], "w"); size_t length; fseek(fd, 0, SEEK_END); length = ftell(fd); fseek(fd, 0, SEEK_SET); char buf[CHUNK_SIZE]; while (length > CHUNK_SIZE) { fread( buf, 1, CHUNK_SIZE, fd); fwrite(buf, 1, CHUNK_SIZE, fout); length -= CHUNK_SIZE; } if (length > 0) { fread( buf, 1, length, fd); fwrite(buf, 1, length, fout); } fclose(fd); fclose(fout); return 0; } /* * vim:tabstop=4 * vim:noexpandtab * vim:shiftwidth=4 */