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vircommand: Parse /dev/fd on *BSD-like systems when looking for opened FDs

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On BSD-like systems "/dev/fd" serves the same purpose as
"/proc/self/fd". And since procfs is usually not mounted, on such
systems we can use "/dev/fd" instead.

Resolves: https://gitlab.com/libvirt/libvirt/-/issues/518
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
This commit is contained in:
Michal Privoznik 2023-08-29 08:49:27 +02:00
parent 4df8dc576f
commit 308ec0fb2c
1 changed files with 4 additions and 2 deletions
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6
src/util/vircommand.c
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@ -472,7 +472,7 @@ virExecCommon(virCommand *cmd, gid_t *groups, int ngroups)
return 0;
}
# ifdef __linux__
# if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
static int
virCommandMassCloseGetFDsDir(virBitmap *fds,
const char *dirName)
@ -502,7 +502,7 @@ virCommandMassCloseGetFDsDir(virBitmap *fds,
return 0;
}
# endif /* __linux__ */
# endif /* defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) */
static int
virCommandMassCloseGetFDs(virBitmap *fds)
@ -513,6 +513,8 @@ virCommandMassCloseGetFDs(virBitmap *fds)
* onto child process (well, the one we will exec soon since this
* is called from the child). */
return virCommandMassCloseGetFDsDir(fds, "/proc/self/fd");
# elif defined(__APPLE__) || defined(__FreeBSD__)
return virCommandMassCloseGetFDsDir(fds, "/dev/fd");
# else
virBitmapSetAll(fds);
return 0;