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Diffstat (limited to 'Build/source/utils/lzma/tests/mkdtemp')
-rwxr-xr-x | Build/source/utils/lzma/tests/mkdtemp | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/Build/source/utils/lzma/tests/mkdtemp b/Build/source/utils/lzma/tests/mkdtemp deleted file mode 100755 index 08f85aa2abc..00000000000 --- a/Build/source/utils/lzma/tests/mkdtemp +++ /dev/null @@ -1,109 +0,0 @@ -#!/bin/sh -# Create a temporary directory, sort of like mktemp -d does. -# Usage: mkdtemp /tmp phoey.XXXXXXXXXX - -# First, try to use the mktemp program. -# Failing that, we'll roll our own mktemp-like function: -# - try to get random bytes from /dev/urandom -# - failing that, generate output from a combination of quickly-varying -# sources and gzip. Ignore non-varying gzip header, and extract -# "random" bits from there. -# - given those bits, map to file-name bytes using tr, and try to create -# the desired directory. -# - make only $MAX_TRIES attempts - -ME=`basename "$0"` -die() { echo >&2 "$ME: $@"; exit 1; } - -MAX_TRIES=4 - -rand_bytes() -{ - n=$1 - - chars=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 - - dev_rand=/dev/urandom - if test -r "$dev_rand"; then - # Note: 256-length($chars) == 194; 3 copies of $chars is 186 + 8 = 194. - dd ibs=$n count=1 if="$dev_rand" | tr -c $chars 01234567$chars$chars$chars - return - fi - - cmds='date; date +%N; free; who -a; w; ps auxww; ps ef; netstat -n' - data=` (eval "$cmds") 2>&1 | gzip ` - - n_plus_50=`expr $n + 50` - - # Ensure that $data has length at least 50+$n - while :; do - len=`echo "$data"|wc -c` - test $n_plus_50 -le $len && break; - data=` (echo "$data"; eval "$cmds") 2>&1 | gzip ` - done - - echo "$data" \ - | dd bs=1 skip=50 count=$n 2>/dev/null \ - | tr -c $chars 01234567$chars$chars$chars -} - -mkdtemp() -{ - case $# in - 2);; - *) die "Usage: $ME DIR TEMPLATE";; - esac - - destdir=$1 - template=$2 - - case $template in - *XXXX) ;; - *) die "invalid template: $template (must have a suffix of at least 4 X's)";; - esac - - fail=0 - - # First, try to use mktemp. - d=`env -u TMPDIR mktemp -d -t -p "$destdir" "$template" 2>/dev/null` \ - || fail=1 - - # The resulting name must be in the specified directory. - case $d in "$destdir"*);; *) fail=1;; esac - - # It must have created the directory. - test -d "$d" || fail=1 - - # It must have 0700 permissions. - perms=`ls -dgo "$d" 2>/dev/null` || fail=1 - case $perms in drwx------*) ;; *) fail=1;; esac - - test $fail = 0 && { - echo "$d" - return - } - - # If we reach this point, we'll have to create a directory manually. - - # Get a copy of the template without its suffix of X's. - base_template=`echo "$template"|sed 's/XX*$//'` - - # Calculate how many X's we've just removed. - template_length=`echo "$template" | wc -c` - nx=`echo "$base_template" | wc -c` - nx=`expr $template_length - $nx` - - err= - i=1 - while :; do - X=`rand_bytes $nx` - candidate_dir="$destdir/$base_template$X" - err=`mkdir -m 0700 "$candidate_dir" 2>&1` \ - && { echo "$candidate_dir"; return; } - test $MAX_TRIES -le $i && break; - i=`expr $i + 1` - done - die "$err" -} - -mkdtemp "$@" |