diff options
| author | Codrin Ciubotariu <codrin.ciubotariu@freescale.com> | 2015-09-09 18:00:51 +0300 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-09-21 08:29:47 -0700 |
| commit | 0118e83ba4e1811515dc944a826758cad8a394b7 (patch) | |
| tree | 6231b27301056b7507bf17afc85b5570d2d5d559 /common | |
| parent | 68c929da6bf754ace639b2159e2d5b9e22323aaa (diff) | |
common/env_flags.c: Add function to validate a MAC address
The code that checks if a string has the format of a MAC address has been
moved to a separate function called eth_validate_ethaddr_str().
This has been done to allow other components (such as vsc9953 driver)
to validate a MAC address.
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'common')
| -rw-r--r-- | common/env_flags.c | 40 |
1 files changed, 27 insertions, 13 deletions
diff --git a/common/env_flags.c b/common/env_flags.c index 5189f5b2dd..e682d85178 100644 --- a/common/env_flags.c +++ b/common/env_flags.c @@ -187,6 +187,31 @@ static void skip_num(int hex, const char *value, const char **end, *end = value; } +#ifdef CONFIG_CMD_NET +int eth_validate_ethaddr_str(const char *addr) +{ + const char *end; + const char *cur; + int i; + + cur = addr; + for (i = 0; i < 6; i++) { + skip_num(1, cur, &end, 2); + if (cur == end) + return -1; + if (cur + 2 == end && is_hex_prefix(cur)) + return -1; + if (i != 5 && *end != ':') + return -1; + if (i == 5 && *end != '\0') + return -1; + cur = end + 1; + } + + return 0; +} +#endif + /* * Based on the declared type enum, validate that the value string complies * with that format @@ -239,19 +264,8 @@ static int _env_flags_validate_type(const char *value, } break; case env_flags_vartype_macaddr: - cur = value; - for (i = 0; i < 6; i++) { - skip_num(1, cur, &end, 2); - if (cur == end) - return -1; - if (cur + 2 == end && is_hex_prefix(cur)) - return -1; - if (i != 5 && *end != ':') - return -1; - if (i == 5 && *end != '\0') - return -1; - cur = end + 1; - } + if (eth_validate_ethaddr_str(value)) + return -1; break; #endif case env_flags_vartype_end: |