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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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#define S_IFREG _S_IFREG
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#define S_IFMT _S_IFMT
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#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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#endif /* not S_ISREG */
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#define O_BINARY _O_BINARY
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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|O_BINARY);
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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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/* malloc will return NULL with nbytes == 0, handle files with size 0 */
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static const char c = '\0';
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processor(&c, 0, name, arg);
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fprintf(stderr, "%s: out of memory\n", name);
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n = read(fd, p, nbytes);
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fprintf(stderr, "%s: read unexpected number of bytes\n", name);
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processor(p, nbytes, name, arg);