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HEAD
remove unused weak definition of __tl_sync in membarrier.c
[musl]
/
src
/
unistd
/
getcwd.c
1
#include <unistd.h>
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#include <errno.h>
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#include <limits.h>
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#include <string.h>
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#include "syscall.h"
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char *getcwd(char *buf, size_t size)
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{
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char tmp[buf ? 1 : PATH_MAX];
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if (!buf) {
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buf = tmp;
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size = sizeof tmp;
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} else if (!size) {
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errno = EINVAL;
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return 0;
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}
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long ret = syscall(SYS_getcwd, buf, size);
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if (ret < 0)
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return 0;
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if (ret == 0 || buf[0] != '/') {
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errno = ENOENT;
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return 0;
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}
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return buf == tmp ? strdup(buf) : buf;
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}