#include <env.h>
#include <env_internal.h>
#include <log.h>
-#include <net.h>
#include <search.h>
#include <errno.h>
#include <malloc.h>
#include <mapmem.h>
+#include <asm/global_data.h>
#include <linux/bitops.h>
#include <u-boot/crc.h>
-#include <watchdog.h>
#include <linux/stddef.h>
#include <asm/byteorder.h>
#include <asm/io.h>
/* Delete only ? */
if (argc < 3 || argv[2] == NULL) {
int rc = hdelete_r(name, &env_htab, env_flag);
- return !rc;
+
+ /* If the variable didn't exist, don't report an error */
+ return rc && rc != -ENOENT ? 1 : 0;
}
/*
return _do_env_set(0, 3, (char * const *)argv, H_PROGRAMMATIC);
}
-/**
- * Set an environment variable to an integer value
- *
- * @param varname Environment variable to set
- * @param value Value to set it to
- * @return 0 if ok, 1 on error
- */
-int env_set_ulong(const char *varname, ulong value)
-{
- /* TODO: this should be unsigned */
- char *str = simple_itoa(value);
-
- return env_set(varname, str);
-}
-
-/**
- * Set an environment variable to an value in hex
- *
- * @param varname Environment variable to set
- * @param value Value to set it to
- * @return 0 if ok, 1 on error
- */
-int env_set_hex(const char *varname, ulong value)
-{
- char str[17];
-
- sprintf(str, "%lx", value);
- return env_set(varname, str);
-}
-
-ulong env_get_hex(const char *varname, ulong default_val)
-{
- const char *s;
- ulong value;
- char *endp;
-
- s = env_get(varname);
- if (s)
- value = simple_strtoul(s, &endp, 16);
- if (!s || endp == s)
- return default_val;
-
- return value;
-}
-
-int eth_env_get_enetaddr(const char *name, uint8_t *enetaddr)
-{
- string_to_enetaddr(env_get(name), enetaddr);
- return is_valid_ethaddr(enetaddr);
-}
-
-int eth_env_set_enetaddr(const char *name, const uint8_t *enetaddr)
-{
- char buf[ARP_HLEN_ASCII + 1];
-
- if (eth_env_get_enetaddr(name, (uint8_t *)buf))
- return -EEXIST;
-
- sprintf(buf, "%pM", enetaddr);
-
- return env_set(name, buf);
-}
-
#ifndef CONFIG_SPL_BUILD
static int do_env_set(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
* the size. Otherwise we echo it as part of the
* message.
*/
- i = simple_strtoul(argv[argc - 1], &endptr, 10);
+ i = dectoul(argv[argc - 1], &endptr);
if (*endptr != '\0') { /* no size */
size = CONFIG_SYS_CBSIZE - 1;
} else { /* size given */
}
}
#endif /* CONFIG_CMD_EDITENV */
-#endif /* CONFIG_SPL_BUILD */
-
-/*
- * Look up variable from environment,
- * return address of storage for that variable,
- * or NULL if not found
- */
-char *env_get(const char *name)
-{
- if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */
- struct env_entry e, *ep;
-
- WATCHDOG_RESET();
-
- e.key = name;
- e.data = NULL;
- hsearch_r(e, ENV_FIND, &ep, &env_htab, 0);
-
- return ep ? ep->data : NULL;
- }
-
- /* restricted capabilities before import */
- if (env_get_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0)
- return (char *)(gd->env_buf);
-
- return NULL;
-}
-
-/*
- * Like env_get, but prints an error if envvar isn't defined in the
- * environment. It always returns what env_get does, so it can be used in
- * place of env_get without changing error handling otherwise.
- */
-char *from_env(const char *envvar)
-{
- char *ret;
-
- ret = env_get(envvar);
-
- if (!ret)
- printf("missing environment variable: %s\n", envvar);
- return ret;
-}
-
-/*
- * Look up variable from environment for restricted C runtime env.
- */
-int env_get_f(const char *name, char *buf, unsigned len)
-{
- int i, nxt, c;
-
- for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
- int val, n;
-
- for (nxt = i; (c = env_get_char(nxt)) != '\0'; ++nxt) {
- if (c < 0)
- return c;
- if (nxt >= CONFIG_ENV_SIZE)
- return -1;
- }
-
- val = env_match((uchar *)name, i);
- if (val < 0)
- continue;
-
- /* found; copy out */
- for (n = 0; n < len; ++n, ++buf) {
- c = env_get_char(val++);
- if (c < 0)
- return c;
- *buf = c;
- if (*buf == '\0')
- return n;
- }
-
- if (n)
- *--buf = '\0';
-
- printf("env_buf [%u bytes] too small for value of \"%s\"\n",
- len, name);
-
- return n;
- }
-
- return -1;
-}
-
-/**
- * Decode the integer value of an environment variable and return it.
- *
- * @param name Name of environment variable
- * @param base Number base to use (normally 10, or 16 for hex)
- * @param default_val Default value to return if the variable is not
- * found
- * @return the decoded value, or default_val if not found
- */
-ulong env_get_ulong(const char *name, int base, ulong default_val)
-{
- /*
- * We can use env_get() here, even before relocation, since the
- * environment variable value is an integer and thus short.
- */
- const char *str = env_get(name);
-
- return str ? simple_strtoul(str, NULL, base) : default_val;
-}
-
-#ifndef CONFIG_SPL_BUILD
#if defined(CONFIG_CMD_SAVEENV) && defined(ENV_IS_IN_DEVICE)
static int do_env_save(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
#endif /* CONFIG_SPL_BUILD */
-int env_match(uchar *s1, int i2)
-{
- if (s1 == NULL)
- return -1;
-
- while (*s1 == env_get_char(i2++))
- if (*s1++ == '=')
- return i2;
-
- if (*s1 == '\0' && env_get_char(i2-1) == '=')
- return i2;
-
- return -1;
-}
-
#ifndef CONFIG_SPL_BUILD
static int do_env_default(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
while (--argc > 0) {
char *name = *++argv;
- if (!hdelete_r(name, &env_htab, env_flag))
+ if (hdelete_r(name, &env_htab, env_flag))
ret = 1;
}
case 's': /* size given */
if (--argc <= 0)
return cmd_usage(cmdtp);
- size = simple_strtoul(*++argv, NULL, 16);
+ size = hextoul(*++argv, NULL);
goto NXTARG;
case 't': /* text format */
if (fmt++)
if (argc < 1)
return CMD_RET_USAGE;
- addr = simple_strtoul(argv[0], NULL, 16);
+ addr = hextoul(argv[0], NULL);
ptr = map_sysmem(addr, size);
if (size)
if (sep != '\n' && crlf_is_lf )
crlf_is_lf = 0;
- addr = simple_strtoul(argv[0], NULL, 16);
+ addr = hextoul(argv[0], NULL);
ptr = map_sysmem(addr, 0);
if (argc >= 2 && strcmp(argv[1], "-")) {
- size = simple_strtoul(argv[1], NULL, 16);
+ size = hextoul(argv[1], NULL);
} else if (chk) {
puts("## Error: external checksum format must pass size\n");
return CMD_RET_FAILURE;
}
#endif
+#if defined(CONFIG_CMD_NVEDIT_INDIRECT)
+static int do_env_indirect(struct cmd_tbl *cmdtp, int flag,
+ int argc, char *const argv[])
+{
+ char *to = argv[1];
+ char *from = argv[2];
+ char *default_value = NULL;
+ int ret = 0;
+
+ if (argc < 3 || argc > 4) {
+ return CMD_RET_USAGE;
+ }
+
+ if (argc == 4) {
+ default_value = argv[3];
+ }
+
+ if (env_get(from) == NULL && default_value == NULL) {
+ printf("## env indirect: Environment variable for <from> (%s) does not exist.\n", from);
+
+ return CMD_RET_FAILURE;
+ }
+
+ if (env_get(from) == NULL) {
+ ret = env_set(to, default_value);
+ }
+ else {
+ ret = env_set(to, env_get(from));
+ }
+
+ if (ret == 0) {
+ return CMD_RET_SUCCESS;
+ }
+ else {
+ return CMD_RET_FAILURE;
+ }
+}
+#endif
+
#if defined(CONFIG_CMD_NVEDIT_INFO)
/*
* print_env_info - print environment information
#if defined(CONFIG_CMD_IMPORTENV)
U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""),
#endif
+#if defined(CONFIG_CMD_NVEDIT_INDIRECT)
+ U_BOOT_CMD_MKENT(indirect, 3, 0, do_env_indirect, "", ""),
+#endif
#if defined(CONFIG_CMD_NVEDIT_INFO)
U_BOOT_CMD_MKENT(info, 3, 0, do_env_info, "", ""),
#endif
#if defined(CONFIG_CMD_IMPORTENV)
"env import [-d] [-t [-r] | -b | -c] addr [size] [var ...] - import environment\n"
#endif
+#if defined(CONFIG_CMD_NVEDIT_INDIRECT)
+ "env indirect <to> <from> [default] - sets <to> to the value of <from>, using [default] when unset\n"
+#endif
#if defined(CONFIG_CMD_NVEDIT_INFO)
"env info - display environment information\n"
"env info [-d] [-p] [-q] - evaluate environment information\n"
projects / platform / kernel / u-boot.git / blobdiff