On Fri, 13 Feb 2009, Jean Delvare wrote: > On Thu, 12 Feb 2009 23:23:12 -0600 (CST), Matt Roberds wrote: >> On Wed, 11 Feb 2009, Jean Delvare wrote: >>> + char path[16 + NAME_MAX]; >> >> This says that the maximum length of the path to the config files is >> 16 characters? Seems kind of short. > > Not really. There is no strong delimiter between the directory name > and the configuration file name, what is limited is the total length. Ah, right. As long as NAME_MAX is huge this might not be a big deal. > Even including the full board manufacturer and model names in the > configuration file name is hardly going to exceed 50 characters. A well-known businessman once said something about 640 KB. :) > I don't know the exact semantics of PATH_MAX but I suspect it includes > all the directory names _and_ the file name, so adding MAX_NAME to it > doesn't make sense. The GNU libc docs at http://www.gnu.org/software/libtool/manual/libc/Limits-for-Files.html#Limits-for-Files spell it out, citing POSIX. Note that it can be different for different filesystems; you can ask at runtime if you really want to know: http://www.gnu.org/software/libtool/manual/libc/Pathconf.html#Pathconf On the other hand, the man page for pathconf on my system says "Some returned values may be huge; they are not suitable for allocating memory." Matt Roberds
