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Improve system call documentation

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This change also introduces partial faccessat() support for zipos and
makes some slight breaking changes in errno results. close() is fixed
to use `EBADF` rather than `EINVAL` and we're now using `ENOTSUP` not
`EOPNOTSUPP` to indicate that zipos doesn't support a system call yet
This commit is contained in:
Justine Tunney 2022-10-02 07:42:44 -07:00
parent 0b5f84dd20
commit ad97775370
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18 changed files with 273 additions and 67 deletions
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7
libc/calls/dup.c
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@ -32,15 +32,16 @@
*
* @param fd remains open afterwards
* @return some arbitrary new number for fd
* @raise EOPNOTSUPP if zipos file
* @raise EBADF if fd isn't open
* @raise EPERM if pledge() is in play without stdio
* @raise ENOTSUP if `fd` is a zip file descriptor
* @raise EBADF if `fd` is negative or not open
* @asyncsignalsafe
* @vforksafe
*/
int dup(int fd) {
int rc;
if (__isfdkind(fd, kFdZip)) {
rc = eopnotsupp();
rc = enotsup();
} else if (!IsWindows()) {
rc = sys_dup(fd);
} else {