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/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
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See the file COPYING for copying permission.
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filemap(const char *name,
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void (*processor)(const void *, size_t, const char *, void *arg),
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fd = open(name, O_RDONLY);
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if (fstat(fd, &sb) < 0) {
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if (!S_ISREG(sb.st_mode)) {
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fprintf(stderr, "%s: not a regular file\n", name);
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/* mmap fails for zero length files */
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static const char c = '\0';
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processor(&c, 0, name, arg);
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p = (void *)mmap((caddr_t)0, (size_t)nbytes, PROT_READ,
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MAP_FILE|MAP_PRIVATE, fd, (off_t)0);
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if (p == (void *)-1) {
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processor(p, nbytes, name, arg);
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munmap((caddr_t)p, nbytes);