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Am 09.02.2015 um 11:17 schrieb Corinna Vinschen:
On Feb 9 00:04, Thomas Wolff wrote:With a Windows case sensitive file system (and according mount flags for /cygdrive), the PATH does not properly reflect casing of the actual directories (e.g. C:\WINDOWS vs. C:\Windows, thanks MS...). However, the shell finds programs anyway, like e.g. notepad. The exec*p system calls, on the other hand, do not find a program in this case as demonstrated by the attached test program. This is in contrast to the Linux (and POSIX?) manual page which claims âThe execlp(), execvp(), and execvpe() functions duplicate the actions of the shell in searching for an executable file ââI can't reproduce this. If I change my cygdrive mounts to case-sensitive, my shell doesn't start notepad anymore: $ cat /etc/fstab none /mnt cygdrive binary,posix=1,user 0 0 $ echo $SHELL /bin/tcsh $ echo $path /usr/bin /mnt/c/WINDOWS/system32 /mnt/c/WINDOWS /mnt/c/WINDOWS/System32/Wbem /mnt/c/WINDOWS/System32/WindowsPowerShell/v1.0 /usr/lib/lapack $ notepad notepad: Command not found. $ /mnt/c/Windows/notepad <works> $
Sorry, I forgot one detail: I added /cygdrive/c/Windows/System32 to my path so the shell will find it, but yet execlp does not find it. #include <unistd.h> #include <string.h> #include <errno.h> #include <stdio.h> int main (int argc, char * * argv) { char * prog = argc > 1 ? argv [1] : "notepad"; int res; printf ("Calling exec %s\n", prog); res = execlp (prog, "-", 0); if (res < 0) { fprintf (stderr, "errno %d - ", errno); perror ("exec"); } } -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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