@ -15,7 +15,7 @@
* *
* The " environment " is stored on external storage as a list of ' \0 ' * The " environment " is stored on external storage as a list of ' \0 '
* terminated " name=value " strings . The end of the list is marked by * terminated " name=value " strings . The end of the list is marked by
* a double ' \0 ' . The environment is precee ded by a 32 bit CRC over * a double ' \0 ' . The environment is preceded by a 32 bit CRC over
* the data part and , in case of redundant environment , a byte of * the data part and , in case of redundant environment , a byte of
* flags . * flags .
* *
@ -838,7 +838,7 @@ static int do_env_delete(cmd_tbl_t *cmdtp, int flag,
* With " -c " and size is NOT given , then the export command will * With " -c " and size is NOT given , then the export command will
* format the data as currently used for the persistent storage , * format the data as currently used for the persistent storage ,
* i . e . it will use CONFIG_ENV_SECT_SIZE as output block size and * i . e . it will use CONFIG_ENV_SECT_SIZE as output block size and
* prepend a valid CRC32 checksum and , in case of res undant * prepend a valid CRC32 checksum and , in case of red undant
* environment , a " current " redundancy flag . If size is given , this * environment , a " current " redundancy flag . If size is given , this
* value will be used instead of CONFIG_ENV_SECT_SIZE ; again , CRC32 * value will be used instead of CONFIG_ENV_SECT_SIZE ; again , CRC32
* checksum and redundancy flag will be inserted . * checksum and redundancy flag will be inserted .
@ -847,12 +847,12 @@ static int do_env_delete(cmd_tbl_t *cmdtp, int flag,
* terminating ' \0 ' byte ) will be written ; here the optional size * terminating ' \0 ' byte ) will be written ; here the optional size
* argument will be used to make sure not to overflow the user * argument will be used to make sure not to overflow the user
* provided buffer ; the command will abort if the size is not * provided buffer ; the command will abort if the size is not
* sufficient . Any remainig n space will be ' \0 ' padded . * sufficient . Any remaining space will be ' \0 ' padded .
* *
* On successful return , the variable " filesize " will be set . * On successful return , the variable " filesize " will be set .
* Note that filesize includes the trailing / terminating ' \0 ' byte ( s ) . * Note that filesize includes the trailing / terminating ' \0 ' byte ( s ) .
* *
* Usage sz enario : create a text snapshot / backup of the current settings : * Usage sc enario : create a text snapshot / backup of the current settings :
* *
* = > env export - t 100000 * = > env export - t 100000
* = > era $ { backup_addr } + $ { filesize } * = > era $ { backup_addr } + $ { filesize }
@ -970,7 +970,7 @@ sep_err:
/*
/*
* env import [ - d ] [ - t [ - r ] | - b | - c ] addr [ size ] * env import [ - d ] [ - t [ - r ] | - b | - c ] addr [ size ]
* - d : delete existing environment before importing ; * - d : delete existing environment before importing ;
* otherwise overwrite / append to existio n definitions * otherwise overwrite / append to existing definitions
* - t : assume text format ; either " size " must be given or the * - t : assume text format ; either " size " must be given or the
* text data must be ' \0 ' terminated * text data must be ' \0 ' terminated
* - r : handle CRLF like LF , that means exported variables with * - r : handle CRLF like LF , that means exported variables with
Robert P. J. Day
8 years ago
committed by
Tom Rini