view auto/lib/sha1/make @ 4617:972642646f06

Rewrite: fixed escaping and possible segfault (ticket #162). The following code resulted in incorrect escaping of uri and possible segfault: location / { rewrite ^(.*) $1?c=$1; return 200 "$uri"; } If there were arguments in a rewrite's replacement string, and length was actually calculated (due to duplicate captures as in the example above, or variables present), the is_args flag was set and incorrectly copied after length calculation. This resulted in escaping applied to the uri part of the replacement, resulting in incorrect escaping. Additionally, buffer was allocated without escaping expected, thus this also resulted in buffer overrun and possible segfault.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 11 May 2012 13:19:22 +0000
parents d620f497c50f
children 78f8ac479735
line wrap: on
line source


# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


case "$NGX_CC_NAME" in

    msvc*)
        ngx_makefile=makefile.msvc
        ngx_opt="CPU_OPT=\"$CPU_OPT\" LIBC=$LIBC SHA1_ASM=$SHA1_ASM"
        ngx_sha1="SHA1=\"$SHA1\""
    ;;

    owc*)
        ngx_makefile=makefile.owc
        ngx_opt="CPU_OPT=\"$CPU_OPT\""
        ngx_sha1=`echo SHA1=\"$SHA1\" | sed -e "s/\//$ngx_regex_dirsep/g"`
    ;;

    bcc)
        ngx_makefile=makefile.bcc
        ngx_opt="-DCPU_OPT=\"$CPU_OPT\" -DSHA1_ASM=$SHA1_ASM"
        ngx_sha1=`echo \-DSHA1=\"$SHA1\" | sed -e "s/\//$ngx_regex_dirsep/g"`
    ;;

esac


done=NO


case "$NGX_PLATFORM" in

    win32)
        cat << END                                        >> $NGX_MAKEFILE

`echo "$SHA1/sha1.lib:	$NGX_MAKEFILE" | sed -e "s/\//$ngx_regex_dirsep/g"`
	\$(MAKE) -f auto/lib/sha1/$ngx_makefile $ngx_opt $ngx_sha1

END

        done=YES
    ;;

    SunOS:*:i86pc)
        if [ $SHA1_ASM = YES ]; then

            cat << END                                        >> $NGX_MAKEFILE

$SHA1/libsha.a:	$NGX_MAKEFILE
	cd $SHA1 \\
	&& \$(MAKE) CFLAGS="$SHA1_OPT -DSOL -DSHA1_ASM -DL_ENDIAN" \\
		CC="\$(CC)" CPP="\$(CPP)" \\
		SHA_ASM_OBJ=asm/sx86-sol.o clean libsha.a

END

            done=YES
        fi
    ;;

    # FreeBSD: i386
    # Linux: i686

    *:i386 | *:i686)
        if [ $SHA1_ASM = YES ]; then

            cat << END                                        >> $NGX_MAKEFILE

$SHA1/libsha.a:	$NGX_MAKEFILE
	cd $SHA1 \\
	&& \$(MAKE) CFLAGS="$SHA1_OPT -DELF -DSHA1_ASM -DL_ENDIAN" \\
		CC="\$(CC)" CPP="\$(CPP)" \\
		SHA_ASM_OBJ=asm/sx86-elf.o clean libsha.a

END

            done=YES
        fi
    ;;

esac


if [ $done = NO ]; then

    cat << END                                                >> $NGX_MAKEFILE

$SHA1/libsha.a:	$NGX_MAKEFILE
	cd $SHA1 \\
	&& \$(MAKE) CFLAGS="$SHA1_OPT" \\
		CC="\$(CC)" SHA_ASM_OBJ= clean libsha.a

END

fi