1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation. 3 * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org> 4 * All rights reserved. 5 */ 6 7 #include <stdio.h> 8 #include <inttypes.h> 9 #include <stdarg.h> 10 #include <errno.h> 11 #include <ctype.h> 12 #include <string.h> 13 #include <netinet/in.h> 14 15 #include <cmdline_parse.h> 16 #include <cmdline_parse_ipaddr.h> 17 18 #include <rte_string_fns.h> 19 20 #include "parse_obj_list.h" 21 22 /* This file is an example of extension of libcmdline. It provides an 23 * example of objects stored in a list. */ 24 25 struct cmdline_token_ops token_obj_list_ops = { 26 .parse = parse_obj_list, 27 .complete_get_nb = complete_get_nb_obj_list, 28 .complete_get_elt = complete_get_elt_obj_list, 29 .get_help = get_help_obj_list, 30 }; 31 32 int 33 parse_obj_list(cmdline_parse_token_hdr_t *tk, const char *buf, void *res, 34 unsigned ressize) 35 { 36 struct token_obj_list *tk2 = (struct token_obj_list *)tk; 37 struct token_obj_list_data *tkd = &tk2->obj_list_data; 38 struct object *o; 39 unsigned int token_len = 0; 40 41 if (*buf == 0) 42 return -1; 43 44 if (res && ressize < sizeof(struct object *)) 45 return -1; 46 47 while(!cmdline_isendoftoken(buf[token_len])) 48 token_len++; 49 50 SLIST_FOREACH(o, tkd->list, next) { 51 if (token_len != strnlen(o->name, OBJ_NAME_LEN_MAX)) 52 continue; 53 if (strncmp(buf, o->name, token_len)) 54 continue; 55 break; 56 } 57 if (!o) /* not found */ 58 return -1; 59 60 /* store the address of object in structure */ 61 if (res) 62 *(struct object **)res = o; 63 64 return token_len; 65 } 66 67 int complete_get_nb_obj_list(cmdline_parse_token_hdr_t *tk) 68 { 69 struct token_obj_list *tk2 = (struct token_obj_list *)tk; 70 struct token_obj_list_data *tkd = &tk2->obj_list_data; 71 struct object *o; 72 int ret = 0; 73 74 SLIST_FOREACH(o, tkd->list, next) { 75 ret ++; 76 } 77 return ret; 78 } 79 80 int complete_get_elt_obj_list(cmdline_parse_token_hdr_t *tk, 81 int idx, char *dstbuf, unsigned int size) 82 { 83 struct token_obj_list *tk2 = (struct token_obj_list *)tk; 84 struct token_obj_list_data *tkd = &tk2->obj_list_data; 85 struct object *o; 86 int i = 0; 87 unsigned len; 88 89 SLIST_FOREACH(o, tkd->list, next) { 90 if (i++ == idx) 91 break; 92 } 93 if (!o) 94 return -1; 95 96 len = strnlen(o->name, OBJ_NAME_LEN_MAX); 97 if ((len + 1) > size) 98 return -1; 99 100 if (dstbuf) 101 snprintf(dstbuf, size, "%s", o->name); 102 103 return 0; 104 } 105 106 107 int get_help_obj_list(__attribute__((unused)) cmdline_parse_token_hdr_t *tk, 108 char *dstbuf, unsigned int size) 109 { 110 snprintf(dstbuf, size, "Obj-List"); 111 return 0; 112 } 113