39 lines
656 B
C
39 lines
656 B
C
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/* Partial emulation of getcwd in terms of getwd. */
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#include <sys/param.h>
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#include <string.h>
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#include <errno.h>
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#ifndef errno
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extern int errno;
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#endif
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char *getwd();
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char *getcwd(buf, size)
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char *buf;
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int size; /* POSIX says this should be size_t */
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{
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if (size <= 0) {
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errno = EINVAL;
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return 0;
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}
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else {
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char mybuf[MAXPATHLEN];
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int saved_errno = errno;
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errno = 0;
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if (!getwd(mybuf)) {
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if (errno == 0)
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; /* what to do? */
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return 0;
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}
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errno = saved_errno;
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if (strlen(mybuf) + 1 > size) {
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errno = ERANGE;
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return 0;
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}
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strcpy(buf, mybuf);
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return buf;
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}
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}
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