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https://github.com/fluencelabs/musl
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899b13cae7
this is a popular extension some programs depend on, and by using a temporary buffer and strdup rather than malloc prior to the syscall, i've avoided the dependency on free and thus minimized the bloat cost of supporting this feature.
14 lines
293 B
C
14 lines
293 B
C
#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[PATH_MAX];
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if (!buf) buf = tmp, size = PATH_MAX;
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if (syscall(SYS_getcwd, buf, size) < 0) return 0;
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return buf == tmp ? strdup(buf) : buf;
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}
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