/* * Copyright (c) 2008 Tim Post * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <stdio.h> #include <str.h> #include <stdarg.h> #include <stdlib.h> #include <vfs/vfs.h> #include <abi/errno.h> #include "config.h" #include "errors.h" #include "util.h" extern volatile int cli_errno; /* Count and return the # of elements in an array */ unsigned int cli_count_args(char **args) { unsigned int i; i = 0; while (args[i] != NULL) i++; return i; } /* * (re)allocates memory to store the current working directory, gets * and updates the current working directory, formats the prompt * string */ unsigned int cli_set_prompt(cliuser_t *usr) { usr->cwd = (char *) realloc(usr->cwd, PATH_MAX); if (NULL == usr->cwd) { cli_error(CL_ENOMEM, "Can not allocate cwd"); cli_errno = CL_ENOMEM; return 1; } if (vfs_cwd_get(usr->cwd, PATH_MAX) != EOK) snprintf(usr->cwd, PATH_MAX, "(unknown)"); if (usr->prompt) free(usr->prompt); asprintf(&usr->prompt, "%s # ", usr->cwd); return 0; } /* * Returns true if the string is a relative or an absolute path */ bool is_path(const char *cmd) { bool ret = str_lcmp(cmd, "/", 1) == 0; ret = ret || str_lcmp(cmd, "./", 2) == 0; ret = ret || str_lcmp(cmd, "../", 3) == 0; return ret; }