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Diffstat (limited to 'cpukit/libcsupport/src/hosterr.c')
-rw-r--r-- | cpukit/libcsupport/src/hosterr.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/hosterr.c b/cpukit/libcsupport/src/hosterr.c new file mode 100644 index 0000000000..d842cc072a --- /dev/null +++ b/cpukit/libcsupport/src/hosterr.c @@ -0,0 +1,42 @@ +/* + * Routines to access a host errno + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + */ + +#include <rtems.h> +#include <errno.h> + +int host_errno(void); + +/* + * copy host errno, if any to thread aware errno, if any + */ + +void fix_syscall_errno(void) +{ + errno = host_errno(); +} + +/* + * Get the host system errno, if any + * When using newlib (or possibly other libc's) on top of UNIX + * the errno returned by system calls may be unavailable due + * to trickery of making errno thread aware. + * This provides a kludge of getting at it. + */ + +#undef errno +extern int errno; +int host_errno(void) +{ + return errno; +} + |