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Diffstat (limited to 'mcon/U/d_access.U')
| -rw-r--r-- | mcon/U/d_access.U | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/mcon/U/d_access.U b/mcon/U/d_access.U new file mode 100644 index 0000000..2e1db7d --- /dev/null +++ b/mcon/U/d_access.U @@ -0,0 +1,74 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic Licence, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic Licence; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: $Log: d_access.U,v $ +?RCS: Revision 3.0 1993/08/18 12:05:42 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_access: test +cc cat +cppflags h_fcntl h_sysfile rm Inlibc Findhdr +?MAKE: -pick add $@ %< +?S:d_access: +?S: This variable conditionally defines HAS_ACCESS if the access() system +?S: call is available to check for access permissions using real IDs. +?S:. +?C:HAS_ACCESS: +?C: This manifest constant lets the C program know that the access() +?C: system call is available to check for accessibility using real UID/GID. +?C: (always present on UNIX.) +?C:. +?H:#$d_access HAS_ACCESS /**/ +?H:. +?W:%<:R_OK W_OK X_OK F_OK +?LINT:set d_access +?LINT:change h_fcntl h_sysfile +: access call always available on UNIX +set access d_access +eval $inlibc + +: locate the flags for 'access()' +case "$d_access" in +"$define") + echo " " + $cat >access.c <<'EOCP' +#include <sys/types.h> +#ifdef I_FCNTL +#include <fcntl.h> +#endif +#ifdef I_SYS_FILE +#include <sys/file.h> +#endif +#ifdef I_UNISTD +#include <unistd.h> +#endif +int main() { + exit(R_OK); +} +EOCP + : check sys/file.h first, no particular reason here + if $test `./findhdr sys/file.h` && \ + $cc -o access $cppflags -DI_SYS_FILE access.c >/dev/null 2>&1 ; then + h_sysfile=true; + echo "<sys/file.h> defines the *_OK access constants." >&4 + elif $test `./findhdr fcntl.h` && \ + $cc -o access $cppflags -DI_FCNTL access.c >/dev/null 2>&1 ; then + h_fcntl=true; + echo "<fcntl.h> defines the *_OK access constants." >&4 +@if I_UNISTD + elif $test `./findhdr unistd.h` && \ + $cc -o access $cppflags -DI_UNISTD access.c >/dev/null 2>&1 ; then + echo "<unistd.h> defines the *_OK access constants." >&4 +@end + else + echo "I can't find the four *_OK access constants--I'll use mine." >&4 + fi + ;; +esac +$rm -f access* + |