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env: Add env_export() wrapper

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Implement env_export() wrapper, so that all implementers of saveenv() don't
have to call hexport_r(), crc32() etc. sequence . This trims down a bit of
code duplication.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut
2014-03-05 19:59:50 +01:00
committed by Tom Rini
parent b401b73d02
commit 7ce1526ed2
12 changed files with 65 additions and 116 deletions
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17
common/env_common.c
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@@ -172,6 +172,23 @@ int env_import(const char *buf, int check)
return 0;
}
/* Emport the environment and generate CRC for it. */
int env_export(env_t *env_out)
{
char *res;
ssize_t len;
res = (char *)env_out->data;
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
}
env_out->crc = crc32(0, env_out->data, ENV_SIZE);
return 0;
}
void env_relocate(void)
{
#if defined(CONFIG_NEEDS_MANUAL_RELOC)