7aa3269a3f
Cleanup kconfig of bootargs and put everything in one menuconfig. Signed-off-by: Anas Nashif <anas.nashif@intel.com>
95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
/* SPDX-License-Identifier: Apache-2.0
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* Copyright The Zephyr Project contributors
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*/
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#include <zephyr/sys/util.h>
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#include <ctype.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_DECLARE(os, CONFIG_KERNEL_LOG_LEVEL);
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extern const char *get_bootargs(void);
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char **prepare_main_args(int *argc)
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{
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#ifdef CONFIG_DYNAMIC_BOOTARGS
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const char *bootargs = get_bootargs();
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#else
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const char bootargs[] = CONFIG_BOOTARGS_STRING;
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#endif
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/* beginning of the buffer contains argument's strings, end of it contains argvs */
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static char args_buf[CONFIG_BOOTARGS_ARGS_BUFFER_SIZE];
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char *strings_end = (char *)args_buf;
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char **argv_begin = (char **)WB_DN(
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args_buf + CONFIG_BOOTARGS_ARGS_BUFFER_SIZE - sizeof(char *));
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int i = 0;
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*argc = 0;
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*argv_begin = NULL;
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#ifdef CONFIG_DYNAMIC_BOOTARGS
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if (!bootargs) {
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return argv_begin;
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}
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#endif
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while (1) {
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while (isspace(bootargs[i])) {
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i++;
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}
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if (bootargs[i] == '\0') {
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return argv_begin;
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}
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if (strings_end + sizeof(char *) >= (char *)argv_begin) {
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LOG_WRN("not enough space in args buffer to accommodate all bootargs"
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" - bootargs truncated");
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return argv_begin;
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}
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argv_begin--;
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memmove(argv_begin, argv_begin + 1, *argc * sizeof(char *));
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argv_begin[*argc] = strings_end;
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bool quoted = false;
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if (bootargs[i] == '\"' || bootargs[i] == '\'') {
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char delimiter = bootargs[i];
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for (int j = i + 1; bootargs[j] != '\0'; j++) {
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if (bootargs[j] == delimiter) {
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quoted = true;
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break;
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}
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}
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}
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if (quoted) {
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char delimiter = bootargs[i];
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i++; /* strip quotes */
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while (bootargs[i] != delimiter
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&& strings_end < (char *)argv_begin) {
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*strings_end++ = bootargs[i++];
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}
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i++; /* strip quotes */
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} else {
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while (!isspace(bootargs[i])
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&& bootargs[i] != '\0'
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&& strings_end < (char *)argv_begin) {
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*strings_end++ = bootargs[i++];
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}
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}
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if (strings_end < (char *)argv_begin) {
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*strings_end++ = '\0';
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} else {
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LOG_WRN("not enough space in args buffer to accommodate all bootargs"
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" - bootargs truncated");
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argv_begin[*argc] = NULL;
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return argv_begin;
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}
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(*argc)++;
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}
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}
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