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access(), Mac OS X, superuser, and X_OK; see PR 8700

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svn: r6323
This commit is contained in:
Matthew Flatt 2007-05-25 21:41:00 +00:00
parent 58f6de8c6b
commit bea1ee3cec
1 changed files with 8 additions and 3 deletions
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11
src/mzscheme/src/file.c
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@ -5257,7 +5257,7 @@ static Scheme_Object *file_or_dir_permissions(int argc, Scheme_Object *argv[])
ok = access(filename, R_OK);
} while ((ok == -1) && (errno == EINTR));
read = !ok;
if (ok && (errno != EACCES))
l = NULL;
else {
@ -5274,9 +5274,14 @@ static Scheme_Object *file_or_dir_permissions(int argc, Scheme_Object *argv[])
} while ((ok == -1) && (errno == EINTR));
execute = !ok;
if (ok && (errno != EACCES))
/* Don't fail at the exec step if the user is the
superuser and errno is EPERM; under Mac OS X,
at least, such a failure simply means tha the
file is not executable. */
if (ok && (errno != EACCES)
&& (uid || gid || (errno != EPERM))) {
l = NULL;
else {
} else {
if (read)
l = scheme_make_pair(read_symbol, l);
if (write)