mirror of
https://git.proxmox.com/git/wasi-libc
synced 2025-06-15 10:29:47 +00:00
320054e84f
This incoporates pieces from musl-libc, cloudlibc, cloudabi, libpreopen, and dlmalloc, as well as a significant amount of new code.
23 lines
609 B
C
23 lines
609 B
C
#include <wasi/core.h>
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#include <__errno.h>
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#include <__function___isatty.h>
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int __isatty(int fd) {
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__wasi_fdstat_t statbuf;
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int r = __wasi_fd_fdstat_get(fd, &statbuf);
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if (r != 0) {
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errno = r;
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return 0;
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}
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// A tty is a character device that we can't seek or tell on.
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if (statbuf.fs_filetype != __WASI_FILETYPE_CHARACTER_DEVICE ||
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(statbuf.fs_rights_base & (__WASI_RIGHT_FD_SEEK | __WASI_RIGHT_FD_TELL)) != 0) {
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errno = __WASI_ENOTTY;
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return 0;
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}
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return 1;
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}
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extern __typeof(__isatty) isatty __attribute__((weak, alias("__isatty")));
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