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Merge from gnulib.

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This commit is contained in:
Paul Eggert 2011-04-10 09:00:46 -07:00
parent 4073e53749
commit 69d9a57ddc
1 changed files with 10 additions and 6 deletions
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16
lib/careadlinkat.c
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@ -22,10 +22,9 @@
#include "careadlinkat.h" #include "careadlinkat.h"
#include "allocator.h"
#include <errno.h> #include <errno.h>
#include <limits.h> #include <limits.h>
#include <stdlib.h>
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
@ -38,15 +37,20 @@
# define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2)) # define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2))
#endif #endif
#include "allocator.h"
#if ! HAVE_READLINKAT #if ! HAVE_READLINKAT
/* Ignore FD. Get the symbolic link value of FILENAME and put it into /* Get the symbolic link value of FILENAME and put it into BUFFER, with
BUFFER, with size BUFFER_SIZE. This function acts like readlink size BUFFER_SIZE. This function acts like readlink but has
but has readlinkat's signature. */ readlinkat's signature. */
ssize_t ssize_t
careadlinkatcwd (int fd, char const *filename, char *buffer, careadlinkatcwd (int fd, char const *filename, char *buffer,
size_t buffer_size) size_t buffer_size)
{ {
(void) fd; /* FD must be AT_FDCWD here, otherwise the caller is using this
function in contexts for which it was not meant for. */
if (fd != AT_FDCWD)
abort ();
return readlink (filename, buffer, buffer_size); return readlink (filename, buffer, buffer_size);
} }
#endif #endif