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make _open_r more independent of interfaces&libraries version

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This commit is contained in:
Wolfgang Thaller 2017-10-09 15:43:52 +02:00
parent 4a78f4a90c
commit 1657cf599c
1 changed files with 12 additions and 0 deletions
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12
libretro/syscalls.c
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@ -30,6 +30,8 @@
#include <reent.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#include <MacMemory.h>
#include <Processes.h>
@ -83,7 +85,17 @@ ssize_t _read_r(struct _reent *reent, int fd, void *buf, size_t count)
int _open_r(struct _reent *reent, const char* name, int flags, int mode)
{
Str255 pname;
#if TARGET_API_MAC_CARBON
// Carbon has the new, sane version.
c2pstrcpy(pname,name);
#else
// It is also availble in various glue code libraries and
// in some versions of InterfaceLib, but it's confusing.
// Using the inplace variant, c2pstr, isn't much better than
// doing things by hand:
strncpy(&pname[1],name,255);
pname[0] = strlen(name);
#endif
short ref;
SInt8 permission;