Hi Fridjof, Please don't top-post.
On Nov 4 13:30, Fritjof Bornebusch wrote: > On Nov 4 13:57, marco atzeri wrote: >> On Fri, Nov 4, 2022 at 1:16 PM Fritjof Bornebusch wrote: >> > >> > Hi, >> > >> > I need to write files whose path exceed the maximum value of 260 >> > characters. >> > Using Windows paths, you can add \\?\ as prefix, e.g., >> > \\?\C:\Users\foo\bar\<file://%3f/C:/Users/foo/bar/>.... >> > >> > However, it seems like this is not the case in Cygwin. When I use >> > \\?\/home/foo/bar<file://%3f/home/foo/bar>, I get no file pointer back. >> > >> > Does someone have a clue how I can bypass this? >> > >> > Best, >> > Fritjof >> > >> >> Have you tried POSIX style ? >> /cygdrive/C/Users/foo/bar.. > > Jep, > > No success. Works for me: ====================================================================== $ cat > longp.sh <<EOF #!/bin/bash POSIX_MAX=4096 # 240 chars per path component DIRNAM="123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890" LPATH=/tmp cd /tmp while [ $(echo -n "$LPATH" | wc -c) -lt $POSIX_MAX ] do mkdir "$DIRNAM" || exit 1 LPATH="$LPATH/$DIRNAM" ls -d "$LPATH" || exit 2 cd "$LPATH" || exit 3 echo "Current length: $(echo -n $LPATH | wc -c)" sleep 1 done EOF $ chmod +x longp.sh $ ./longp.sh /tmp/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 Current length: 245 [...] 12345678901234567890/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 Current length: 4101 $ ====================================================================== If you have specific trouble, please provide a specific, simple testcase, preferredly in plain C or as shell script. Thanks, Corinna -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
