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which: check AT_EACCESS

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A file is executable only if the effective user
have permission to execute it. The real user's
permissions do not matter.

Signed-off-by: Mattias Andrée <maandree@kth.se>
This commit is contained in:
Mattias Andrée 2019-07-27 22:29:10 +02:00 committed by Michael Forney
parent be34c4a24d
commit 7315b8686f
1 changed files with 1 additions and 1 deletions
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2
which.c
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@ -20,7 +20,7 @@ canexec(int fd, const char *name)
if (fstatat(fd, name, &st, 0) < 0 || !S_ISREG(st.st_mode)) if (fstatat(fd, name, &st, 0) < 0 || !S_ISREG(st.st_mode))
return 0; return 0;
return faccessat(fd, name, X_OK, 0) == 0; return faccessat(fd, name, X_OK, AT_EACCESS) == 0;
} }
static int static int