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Implement getcwd() for XNU

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This commit is contained in:
Justine Tunney 2021-01-30 08:54:12 -08:00
parent 417797d218
commit 95173645a1
17 changed files with 239 additions and 77 deletions
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30
libc/calls/getcwd.c
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@ -19,8 +19,6 @@
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/sysv/errfuns.h"
/**
* Returns current working directory.
@ -34,28 +32,16 @@
* @error ERANGE, EINVAL
*/
char *(getcwd)(char *buf, size_t size) {
if (buf) {
buf[0] = '\0';
if (!IsWindows()) {
int olderr = errno;
if (getcwd$sysv(buf, size) != NULL) {
return buf;
} else if (IsXnu() && errno == ENOSYS) {
if (size >= 2) {
buf[0] = '.'; /* XXX: could put forth more effort */
buf[1] = '\0';
errno = olderr;
return buf;
} else {
erange();
}
}
return NULL;
if (buf && size) buf[0] = '\0';
if (!IsWindows()) {
if (IsXnu()) {
return getcwd$xnu(buf, size);
} else if (getcwd$sysv(buf, size) != (void *)-1) {
return buf;
} else {
return getcwd$nt(buf, size);
return NULL;
}
} else {
efault();
return NULL;
return getcwd$nt(buf, size);
}
}