38 lines
881 B
C
38 lines
881 B
C
/* $OpenBSD: util.h,v 1.6 2019/01/25 00:19:26 millert Exp $ */
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/*
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* Placed in the public domain by Todd C. Miller <millert@openbsd.org>
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* on October 9, 2004.
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*/
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#define MMAP(ptr, len, prot, flags, fd, off) do { \
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if ((ptr = mmap(NULL, len, prot, flags, fd, off)) == MAP_FAILED) { \
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usemmap = 0; \
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if (errno != EINVAL) \
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warn("mmap"); \
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else if ((ptr = malloc(len)) == NULL) { \
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ptr = MAP_FAILED; \
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warn("malloc"); \
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} else if (pread(fd, ptr, len, off) != len) { \
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free(ptr); \
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ptr = MAP_FAILED; \
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warn("pread"); \
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} \
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} \
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} while (0)
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#define MUNMAP(addr, len) do { \
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if (usemmap) \
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munmap(addr, len); \
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else \
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free(addr); \
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addr = NULL; \
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} while (0)
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extern int usemmap;
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extern int dynamic_only;
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struct xnlist {
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struct nlist nl;
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unsigned long n_size;
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};
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