31 lines
675 B
C
31 lines
675 B
C
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#include <mlvalues.h>
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#include <alloc.h>
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#include "unix.h"
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#ifdef HAS_UNISTD
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#include <unistd.h>
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#else
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#include <sys/file.h>
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#ifndef R_OK
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#define R_OK 4/* test for read permission */
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#define W_OK 2/* test for write permission */
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#define X_OK 1/* test for execute (search) permission */
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#define F_OK 0/* test for presence of file */
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#endif
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#endif
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static int access_permission_table[] = {
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R_OK, W_OK, X_OK, F_OK
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};
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value unix_access(path, perms) /* ML */
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value path, perms;
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{
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int ret;
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ret = access(String_val(path),
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convert_flag_list(perms, access_permission_table));
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if (ret == -1)
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uerror("access", path);
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return Val_unit;
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}
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