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| Message-ID: | <54DA5890.8060609@towo.net> |
| Date: | Tue, 10 Feb 2015 20:14:24 +0100 |
| From: | Thomas Wolff <towo AT towo DOT net> |
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| To: | cygwin AT cygwin DOT com |
| Subject: | Re: execlp/execvp needs case-correct PATH |
| References: | <54D7EB8E DOT 8070308 AT towo DOT net> <20150209101747 DOT GA12131 AT calimero DOT vinschen DOT de> <54D91D54 DOT 5000705 AT towo DOT net> <20150210092756 DOT GC15989 AT calimero DOT vinschen DOT de> |
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Am 10.02.2015 um 10:27 schrieb Corinna Vinschen: > On Feb 9 21:49, Thomas Wolff wrote: >> 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 >>>> „The execlp(), execvp(), and execvpe() functions duplicate the actions >>>> of the shell in searching for an executable file …“ >>> ... >> 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. > Which makes sense, given that notepad is not in C:\Windows\System32, but in C:\Windows. On my systems (Windows 7 Professional/Ultimate) it’s in both C:\Windows and C:\Windows\System32 (otherwise the shell wouldn’t have found it after adding to the path). However, I could resolve the issue partly by putting /cygdrive/c/Windows (or ../System32) in the path *before* the bogus /cygdrive/c/WINDOWS - weird, but this way exec*p works. With the old setting (bogus first in path), apparently/assumedly exec*p somehow finds the file in /cygdrive/c/WINDOWS but then cannot start it from there because of the case mis-match. There’s still the inconsistency with shell behaviour. ------ Thomas --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. http://www.avast.com -- 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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