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* gdbint.texinfo (Host Definition): Remove description of R_OK.
[deliverable/binutils-gdb.git]
/
libiberty
/
rename.c
1
/* rename -- rename a file
2
This function is in the public domain. */
3
4
/* Rename a file. */
5
6
#ifdef HAVE_CONFIG_H
7
#include
"config.h"
8
#endif
9
#include <errno.h>
10
#ifdef HAVE_UNISTD_H
11
#include <unistd.h>
12
#endif
13
14
int
15
rename
(
zfrom
,
zto
)
16
char
*
zfrom
;
17
char
*
zto
;
18
{
19
if
(
link
(
zfrom
,
zto
) <
0
)
20
{
21
if
(
errno
!=
EEXIST
)
22
return
-
1
;
23
if
(
unlink
(
zto
) <
0
24
||
link
(
zfrom
,
zto
) <
0
)
25
return
-
1
;
26
}
27
return
unlink
(
zfrom
);
28
}
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