Name
bitmap_parselist —
convert list format ASCII string to bitmap
Synopsis
int bitmap_parselist ( | const char * | bp, |
| | unsigned long * | maskp, |
| | int | nmaskbits); |
Arguments
bp
read nul-terminated user string from this buffer
maskp
write resulting mask here
nmaskbits
number of bits in mask to be written
Description
Input format is a comma-separated list of decimal numbers and
ranges. Consecutively set bits are shown as two hyphen-separated
decimal numbers, the smallest and largest bit numbers set in
the range.
Returns 0 on success, -errno on invalid input strings.
Error values
-EINVAL: second number in range smaller than first
-EINVAL: invalid character in string
-ERANGE: bit number specified too large for mask