diff options
| -rwxr-xr-x | afl-cmin.awk | 40 | ||||
| -rwxr-xr-x | test/test.sh | 2 |
2 files changed, 33 insertions, 9 deletions
diff --git a/afl-cmin.awk b/afl-cmin.awk index fcdfb71f..967c4e87 100755 --- a/afl-cmin.awk +++ b/afl-cmin.awk @@ -1,5 +1,28 @@ #!/usr/bin/awk -f +# awk script to minimize a test corpus of input files +# +# based on afl-cmin bash script written by Michal Zalewski +# rewritten by Heiko Eißfeldt (hexcoder-) +# +# uses getopt.awk package from Arnold Robbins +# +# external tools used by this script: +# test +# grep +# rm +# mkdir +# ln +# cp +# pwd +# which +# cd +# find +# stat +# sort +# cut +# and afl-showmap from this project :-) + # getopt.awk --- Do C library getopt(3) function in awk # External variables: @@ -285,11 +308,10 @@ BEGIN { if (!ENVIRON["AFL_PATH"]) { if (0 == system("test -f afl-cmin.awk")) { - path = "." + showmap = "./afl-showmap" } else { - "which afl-showmap 2>/dev/null" | getline path + "which afl-showmap 2>/dev/null" | getline showmap } - showmap = path "/afl-showmap" } else { showmap = ENVIRON["AFL_PATH"] "/afl-showmap" } @@ -301,12 +323,14 @@ BEGIN { # get list of input filenames sorted by size i = 0 - # yuck, gnu stat is incompatible to bsd stat - if ("stat --version 2>/dev/null" !~ /GNU coreutils/) { - # I dont get it why this does not work, output is "stat (GNU coreutils) 8.30" and still it goes here ... - stat_format = "-c '%s %n'" + # yuck, gnu stat is option incompatible to bsd stat + # we use a heuristic to differentiate between + # GNU stat and other stats + "stat --version 2>/dev/null" | getline statversion + if (statversion ~ /GNU coreutils/) { + stat_format = "-c '%s %n'" # GNU } else { - stat_format = "-f '%z %N'" + stat_format = "-f '%z %N'" # *BSD, MacOS } while ("cd "in_dir" && find . -type f -exec stat "stat_format" \\{\\} \\; | sort -n | cut -d' ' -f2-" | getline) { infilesSmallToBig[i++] = $0 diff --git a/test/test.sh b/test/test.sh index 0ae6fd09..cc7fe224 100755 --- a/test/test.sh +++ b/test/test.sh @@ -150,7 +150,7 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" && { } echo 000000000000000000000000 > in/in2 mkdir -p in2 - ../afl-cmin -i in -o in2 -- ./test-instr.plain > /dev/null 2>&1 + ../afl-cmin -i in -o in2 -- ./test-instr.plain CNT=`ls in2/ | wc -l` case "$CNT" in 1| *1) $ECHO "$GREEN[+] afl-cmin correctly minimized testcase numbers" ;; |