diff options
Diffstat (limited to 'sys/etc/envgeti.x')
-rw-r--r-- | sys/etc/envgeti.x | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sys/etc/envgeti.x b/sys/etc/envgeti.x new file mode 100644 index 00000000..a3e14190 --- /dev/null +++ b/sys/etc/envgeti.x @@ -0,0 +1,26 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +include <syserr.h> +include <mach.h> + +# ENVGETI -- Fetch an environment variable and try to interpret its value +# as an integer. Abort if variable is not found or cannot be converted to +# a number. + +int procedure envgeti (varname) + +char varname[ARB] + +int ival, ip +char val[MAX_DIGITS] +int ctoi(), envfind() +errchk envfind, syserrs + +begin + ip = 1 + if (envfind (varname, val, MAX_DIGITS) > 0) + if (ctoi (val, ip, ival) > 0) + return (ival) + + call syserrs (SYS_ENVNNUM, varname) +end |