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  • Committer: Bazaar Package Importer
  • Author(s): Oliver Grawert
  • Date: 2010-03-22 15:06:23 UTC
  • Revision ID: james.westby@ubuntu.com-20100322150623-i21g8rgiyl5dohag
Tags: upstream-2010.3git20100315
Import upstream version 2010.3git20100315

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common/cmd_test.c
 
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/*
 
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 * Copyright 2000-2009
 
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 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 
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 *
 
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 * See file CREDITS for list of people who contributed to this
 
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 * project.
 
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 *
 
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 * This program is free software; you can redistribute it and/or
 
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 * modify it under the terms of the GNU General Public License as
 
10
 * published by the Free Software Foundation; either version 2 of
 
11
 * the License, or (at your option) any later version.
 
12
 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
16
 * GNU General Public License for more details.
 
17
 *
 
18
 * You should have received a copy of the GNU General Public License
 
19
 * along with this program; if not, write to the Free Software
 
20
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 
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 * MA 02111-1307 USA
 
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 */
 
23
 
 
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#include <common.h>
 
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#include <command.h>
 
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int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
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{
 
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        char **ap;
 
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        int left, adv, expr, last_expr, neg, last_cmp;
 
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        /* args? */
 
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        if (argc < 3)
 
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                return 1;
 
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#if 0
 
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        {
 
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                printf("test:");
 
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                left = 1;
 
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                while (argv[left])
 
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                        printf(" %s", argv[left++]);
 
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        }
 
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#endif
 
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        last_expr = 0;
 
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        left = argc - 1; ap = argv + 1;
 
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        if (left > 0 && strcmp(ap[0], "!") == 0) {
 
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                neg = 1;
 
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                ap++;
 
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                left--;
 
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        } else
 
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                neg = 0;
 
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        expr = -1;
 
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        last_cmp = -1;
 
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        last_expr = -1;
 
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        while (left > 0) {
 
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                if (strcmp(ap[0], "-o") == 0 || strcmp(ap[0], "-a") == 0)
 
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                        adv = 1;
 
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                else if (strcmp(ap[0], "-z") == 0 || strcmp(ap[0], "-n") == 0)
 
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                        adv = 2;
 
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                else
 
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                        adv = 3;
 
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                if (left < adv) {
 
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                        expr = 1;
 
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                        break;
 
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                }
 
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                if (adv == 1) {
 
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                        if (strcmp(ap[0], "-o") == 0) {
 
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                                last_expr = expr;
 
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                                last_cmp = 0;
 
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                        } else if (strcmp(ap[0], "-a") == 0) {
 
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                                last_expr = expr;
 
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                                last_cmp = 1;
 
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                        } else {
 
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                                expr = 1;
 
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                                break;
 
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                        }
 
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                }
 
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                if (adv == 2) {
 
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                        if (strcmp(ap[0], "-z") == 0)
 
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                                expr = strlen(ap[1]) == 0 ? 1 : 0;
 
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                        else if (strcmp(ap[0], "-n") == 0)
 
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                                expr = strlen(ap[1]) == 0 ? 0 : 1;
 
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                        else {
 
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                                expr = 1;
 
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                                break;
 
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                        }
 
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                        if (last_cmp == 0)
 
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                                expr = last_expr || expr;
 
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                        else if (last_cmp == 1)
 
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                                expr = last_expr && expr;
 
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                        last_cmp = -1;
 
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                }
 
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                if (adv == 3) {
 
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                        if (strcmp(ap[1], "=") == 0)
 
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                                expr = strcmp(ap[0], ap[2]) == 0;
 
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                        else if (strcmp(ap[1], "!=") == 0)
 
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                                expr = strcmp(ap[0], ap[2]) != 0;
 
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                        else if (strcmp(ap[1], ">") == 0)
 
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                                expr = strcmp(ap[0], ap[2]) > 0;
 
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                        else if (strcmp(ap[1], "<") == 0)
 
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                                expr = strcmp(ap[0], ap[2]) < 0;
 
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                        else if (strcmp(ap[1], "-eq") == 0)
 
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                                expr = simple_strtol(ap[0], NULL, 10) == simple_strtol(ap[2], NULL, 10);
 
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                        else if (strcmp(ap[1], "-ne") == 0)
 
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                                expr = simple_strtol(ap[0], NULL, 10) != simple_strtol(ap[2], NULL, 10);
 
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                        else if (strcmp(ap[1], "-lt") == 0)
 
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                                expr = simple_strtol(ap[0], NULL, 10) < simple_strtol(ap[2], NULL, 10);
 
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                        else if (strcmp(ap[1], "-le") == 0)
 
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                                expr = simple_strtol(ap[0], NULL, 10) <= simple_strtol(ap[2], NULL, 10);
 
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                        else if (strcmp(ap[1], "-gt") == 0)
 
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                                expr = simple_strtol(ap[0], NULL, 10) > simple_strtol(ap[2], NULL, 10);
 
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                        else if (strcmp(ap[1], "-ge") == 0)
 
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                                expr = simple_strtol(ap[0], NULL, 10) >= simple_strtol(ap[2], NULL, 10);
 
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                        else {
 
123
                                expr = 1;
 
124
                                break;
 
125
                        }
 
126
 
 
127
                        if (last_cmp == 0)
 
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                                expr = last_expr || expr;
 
129
                        else if (last_cmp == 1)
 
130
                                expr = last_expr && expr;
 
131
                        last_cmp = -1;
 
132
                }
 
133
 
 
134
                ap += adv; left -= adv;
 
135
        }
 
136
 
 
137
        if (neg)
 
138
                expr = !expr;
 
139
 
 
140
        expr = !expr;
 
141
 
 
142
        debug (": returns %d\n", expr);
 
143
 
 
144
        return expr;
 
145
}
 
146
 
 
147
U_BOOT_CMD(
 
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        test,   CONFIG_SYS_MAXARGS,     1,      do_test,
 
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        "minimal test like /bin/sh",
 
150
        "[args..]"
 
151
);
 
152
 
 
153
int do_false(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
154
{
 
155
        return 1;
 
156
}
 
157
 
 
158
U_BOOT_CMD(
 
159
        false,  CONFIG_SYS_MAXARGS,     1,      do_false,
 
160
        "do nothing, unsuccessfully",
 
161
        NULL
 
162
);
 
163
 
 
164
int do_true(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
165
{
 
166
        return 0;
 
167
}
 
168
 
 
169
U_BOOT_CMD(
 
170
        true,   CONFIG_SYS_MAXARGS,     1,      do_true,
 
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        "do nothing, successfully",
 
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        NULL
 
173
);