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89 lines
1.9 KiB
C
89 lines
1.9 KiB
C
/*
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* Frontend command-line utility for Linux NVRAM layer
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*
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* Copyright 2004, Broadcom Corporation
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* All Rights Reserved.
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*
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* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
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* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
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* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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*
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* $Id$
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <typedefs.h>
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#include <bcmnvram.h>
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static void
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usage(void)
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{
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fprintf(stderr, "usage: nvram [get name] [set name=value] [unset name] [show]\n");
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exit(0);
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}
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/* hack for some PMON default nvram values which have '\r' appended */
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void
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puts_trim_cr(char *str)
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{
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int len= strlen(str);
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if (len && (str[len-1] == '\r')) len--;
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printf("%.*s\n", len, str);
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}
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/* NVRAM utility */
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int
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main(int argc, char **argv)
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{
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char *name, *value, buf[NVRAM_SPACE];
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int size;
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/* Skip program name */
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--argc;
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++argv;
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if (!*argv)
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usage();
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/* Process the remaining arguments. */
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for (; *argv; argv++) {
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if (!strncmp(*argv, "get", 3)) {
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if (*++argv) {
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if ((value = nvram_get(*argv))) {
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puts_trim_cr(value);
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}
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}
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}
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else if (!strncmp(*argv, "set", 3)) {
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if (*++argv) {
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strncpy(value = buf, *argv, sizeof(buf));
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name = strsep(&value, "=");
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nvram_set(name, value);
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}
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}
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else if (!strncmp(*argv, "unset", 5)) {
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if (*++argv)
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nvram_unset(*argv);
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}
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else if (!strncmp(*argv, "commit", 5)) {
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nvram_commit();
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}
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else if (!strncmp(*argv, "show", 4) ||
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!strncmp(*argv, "getall", 6)) {
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nvram_getall(buf, sizeof(buf));
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for (name = buf; *name; name += strlen(name) + 1)
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puts_trim_cr(name);
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size = sizeof(struct nvram_header) + (int) name - (int) buf;
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fprintf(stderr, "size: %d bytes (%d left)\n", size, NVRAM_SPACE - size);
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}
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if (!*argv)
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break;
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}
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return 0;
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}
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