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scripts/wrapper.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jun 22 23:49:23 2010 +0200 (2010-06-22)
changeset 1992 eebcaff6626f
parent 1434 7e7290acccc1
permissions -rw-r--r--
scripts/wrapper: fix wrong test when checking access to the reall tool

In C, the proper syntax for a bit-wise OR is a single '|', not two.

It worked so far because all was well:
- X_OK == 1
- R_OK||X_OK == 1
- the file we searched for had the x-bit set
-> access( file, R_OK||X_OK ) worked
- inicidentally, the file we searched for also had the r-bit set,
but we were not testing that in fact. 
     1 #!/bin/sh

     2 

     3 # this wrapper will not work under BSD systems or others

     4 # not containig the GNU readlink.

     5 # Under those, wrapper.c will forcibly be used

     6 # regardless of the config file setting.

     7 

     8 canonicalizedname=$(readlink -nm "${0}")

     9 dirname="$(dirname "${canonicalizedname}")"

    10 basename="$(basename "${canonicalizedname}")"

    11 

    12 ld_lib_path="$(dirname "${dirname}")/lib"

    13 

    14 case ":${LD_LIBRARY_PATH}:" in

    15     *":${ld_lib_path}:"*)   ;;

    16     *)  LD_LIBRARY_PATH="${ld_lib_path}${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}";;

    17 esac

    18 

    19 export LD_LIBRARY_PATH

    20 exec "${dirname}/.${basename}" "$@"
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