mirror of
https://github.com/AsahiLinux/u-boot
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f7ae49fc4f
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
217 lines
4 KiB
C
217 lines
4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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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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#include <common.h>
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#include <command.h>
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#include <fs.h>
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#include <log.h>
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#define OP_INVALID 0
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#define OP_NOT 1
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#define OP_OR 2
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#define OP_AND 3
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#define OP_STR_EMPTY 4
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#define OP_STR_NEMPTY 5
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#define OP_STR_EQ 6
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#define OP_STR_NEQ 7
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#define OP_STR_LT 8
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#define OP_STR_GT 9
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#define OP_INT_EQ 10
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#define OP_INT_NEQ 11
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#define OP_INT_LT 12
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#define OP_INT_LE 13
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#define OP_INT_GT 14
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#define OP_INT_GE 15
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#define OP_FILE_EXISTS 16
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const struct {
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int arg;
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const char *str;
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int op;
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int adv;
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} op_adv[] = {
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{1, "=", OP_STR_EQ, 3},
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{1, "!=", OP_STR_NEQ, 3},
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{1, "<", OP_STR_LT, 3},
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{1, ">", OP_STR_GT, 3},
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{1, "-eq", OP_INT_EQ, 3},
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{1, "-ne", OP_INT_NEQ, 3},
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{1, "-lt", OP_INT_LT, 3},
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{1, "-le", OP_INT_LE, 3},
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{1, "-gt", OP_INT_GT, 3},
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{1, "-ge", OP_INT_GE, 3},
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{0, "!", OP_NOT, 1},
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{0, "-o", OP_OR, 1},
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{0, "-a", OP_AND, 1},
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{0, "-z", OP_STR_EMPTY, 2},
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{0, "-n", OP_STR_NEMPTY, 2},
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{0, "-e", OP_FILE_EXISTS, 4},
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};
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static int do_test(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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char * const *ap;
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int i, op, left, adv, expr, last_expr, last_unop, last_binop;
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/* args? */
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if (argc < 3)
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return 1;
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#ifdef DEBUG
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{
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debug("test(%d):", argc);
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left = 1;
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while (argv[left])
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debug(" '%s'", argv[left++]);
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}
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#endif
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left = argc - 1;
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ap = argv + 1;
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expr = 0;
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last_unop = OP_INVALID;
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last_binop = OP_INVALID;
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last_expr = -1;
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while (left > 0) {
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for (i = 0; i < ARRAY_SIZE(op_adv); i++) {
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if (left <= op_adv[i].arg)
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continue;
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if (!strcmp(ap[op_adv[i].arg], op_adv[i].str)) {
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op = op_adv[i].op;
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adv = op_adv[i].adv;
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break;
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}
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}
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if (i == ARRAY_SIZE(op_adv)) {
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expr = 1;
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break;
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}
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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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switch (op) {
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case OP_STR_EMPTY:
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expr = strlen(ap[1]) == 0 ? 1 : 0;
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break;
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case OP_STR_NEMPTY:
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expr = strlen(ap[1]) == 0 ? 0 : 1;
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break;
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case OP_STR_EQ:
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expr = strcmp(ap[0], ap[2]) == 0;
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break;
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case OP_STR_NEQ:
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expr = strcmp(ap[0], ap[2]) != 0;
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break;
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case OP_STR_LT:
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expr = strcmp(ap[0], ap[2]) < 0;
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break;
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case OP_STR_GT:
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expr = strcmp(ap[0], ap[2]) > 0;
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break;
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case OP_INT_EQ:
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expr = simple_strtol(ap[0], NULL, 0) ==
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simple_strtol(ap[2], NULL, 0);
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break;
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case OP_INT_NEQ:
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expr = simple_strtol(ap[0], NULL, 0) !=
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simple_strtol(ap[2], NULL, 0);
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break;
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case OP_INT_LT:
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expr = simple_strtol(ap[0], NULL, 0) <
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simple_strtol(ap[2], NULL, 0);
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break;
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case OP_INT_LE:
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expr = simple_strtol(ap[0], NULL, 0) <=
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simple_strtol(ap[2], NULL, 0);
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break;
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case OP_INT_GT:
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expr = simple_strtol(ap[0], NULL, 0) >
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simple_strtol(ap[2], NULL, 0);
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break;
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case OP_INT_GE:
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expr = simple_strtol(ap[0], NULL, 0) >=
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simple_strtol(ap[2], NULL, 0);
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break;
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case OP_FILE_EXISTS:
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expr = file_exists(ap[1], ap[2], ap[3], FS_TYPE_ANY);
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break;
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}
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switch (op) {
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case OP_OR:
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last_expr = expr;
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last_binop = OP_OR;
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break;
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case OP_AND:
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last_expr = expr;
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last_binop = OP_AND;
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break;
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case OP_NOT:
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if (last_unop == OP_NOT)
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last_unop = OP_INVALID;
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else
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last_unop = OP_NOT;
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break;
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default:
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if (last_unop == OP_NOT) {
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expr = !expr;
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last_unop = OP_INVALID;
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}
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if (last_binop == OP_OR)
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expr = last_expr || expr;
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else if (last_binop == OP_AND)
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expr = last_expr && expr;
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last_binop = OP_INVALID;
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break;
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}
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ap += adv; left -= adv;
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}
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expr = !expr;
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debug (": returns %d\n", expr);
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return expr;
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}
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#undef true
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#undef false
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U_BOOT_CMD(
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test, CONFIG_SYS_MAXARGS, 1, do_test,
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"minimal test like /bin/sh",
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"[args..]"
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);
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static int do_false(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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return 1;
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}
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U_BOOT_CMD(
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false, CONFIG_SYS_MAXARGS, 1, do_false,
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"do nothing, unsuccessfully",
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NULL
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);
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static int do_true(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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return 0;
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}
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U_BOOT_CMD(
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true, CONFIG_SYS_MAXARGS, 1, do_true,
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"do nothing, successfully",
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NULL
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);
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