On 02/06/2018 07:28 PM, Mike Frysinger wrote: > On 06 Feb 2018 09:46, walter harms wrote: >> Am 05.02.2018 22:48, schrieb Mike Frysinger: >>> Make it clear that the delimiters in LD_PRELOAD, LD_LIBRARY_PATH, and >>> LD_AUDIT cannot be escaped so people don't try various methods (such >>> as \:) to workaround it. >>> >>> --- a/man8/ld.so.8 >>> +++ b/man8/ld.so.8 >>> @@ -271,7 +271,8 @@ This is useful when using a debugger. >>> .B LD_LIBRARY_PATH >>> A list of directories in which to search for >>> ELF libraries at execution time. >>> -The items in the list are separated by either colons or semicolons. >>> +The items in the list are separated by either colons or semicolons, >>> +and there is no support for escaping either separator. >>> Similar to the >>> .B PATH >>> environment variable. >>> @@ -310,7 +311,8 @@ as shell variables!) >>> .B LD_PRELOAD >>> A list of additional, user-specified, ELF shared >>> objects to be loaded before all others. >>> -The items of the list can be separated by spaces or colons. >>> +The items of the list can be separated by spaces or colons, >>> +and there is no support for escaping either separator. >>> This can be used to selectively override functions in other shared objects. >>> The objects are searched for using the rules given under DESCRIPTION. >>> .IP >>> @@ -352,7 +354,8 @@ many obsolete or only for internal use. >>> A colon-separated list of user-specified, ELF shared objects >>> to be loaded before all others in a separate linker namespace >>> (i.e., one that does not intrude upon the normal symbol bindings that >>> -would occur in the process). >>> +would occur in the process) >>> +and there is no support for escaping the separator. >>> These objects can be used to audit the operation of the dynamic linker. >>> .IP >>> .B LD_AUDIT >> >> Everything is alright. NTL i would suggest to make consequences more clear, e.g.: >> >> "There is \fBno way\rR to have libraryname like libfoo-1:2. In this case ld.so will >> always search for \fBibfoo-1\fR and \fB2\fR." > > could do. lets see what Michael thinks. I'm inclined to think we don't need to be more explicit, since it is a rather unusual thing to create files with names containing [;:]. Cheers, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
