diff options
Diffstat (limited to 'include/common.h')
| -rw-r--r-- | include/common.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h index 76c79ae..28aa4b9 100644 --- a/include/common.h +++ b/include/common.h @@ -352,6 +352,19 @@ int envmatch (uchar *, int); char *getenv (const char *); int getenv_f (const char *name, char *buf, unsigned len); ulong getenv_ulong(const char *name, int base, ulong default_val); + +/** + * getenv_hex() - Return an environment variable as a hex value + * + * Decode an environment as a hex number (it may or may not have a 0x + * prefix). If the environment variable cannot be found, or does not start + * with hex digits, the default value is returned. + * + * @varname: Variable to decode + * @default_val: Value to return on error + */ +ulong getenv_hex(const char *varname, ulong default_val); + /* * Read an environment variable as a boolean * Return -1 if variable does not exist (default to true) |