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| author | Marek Vasut <marex@denx.de> | 2014-03-05 19:59:50 +0100 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-03-21 16:43:59 -0400 |
| commit | 7ce1526ed2bf7a7499a843d38b30095fa2894659 (patch) | |
| tree | 4cfcf6050115137a4ff027e21ab2fcbf61c58359 /common/env_common.c | |
| parent | b401b73d02bb4f97197830e565f19a65577fecc6 (diff) | |
| download | talos-obmc-uboot-7ce1526ed2bf7a7499a843d38b30095fa2894659.tar.gz talos-obmc-uboot-7ce1526ed2bf7a7499a843d38b30095fa2894659.zip | |
env: Add env_export() wrapper
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>
Diffstat (limited to 'common/env_common.c')
| -rw-r--r-- | common/env_common.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/common/env_common.c b/common/env_common.c index c0bfc2f5db..fe35ff4360 100644 --- a/common/env_common.c +++ b/common/env_common.c @@ -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) |
