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Fix stdio for character device regression

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Caused by ed93fc3dd7
This commit is contained in:
Justine Tunney 2024-05-25 05:58:09 -07:00
parent ce9aeb2aed
commit 1df4296208
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GPG key ID: BE714B4575D6E328
3 changed files with 19 additions and 9 deletions
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7
libc/stdio/fdopen.c
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@ -17,9 +17,11 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/stdio/internal.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/s.h"
#include "libc/sysv/errfuns.h"
#include "libc/thread/thread.h"
@ -33,9 +35,12 @@
*/
FILE *fdopen(int fd, const char *mode) {
FILE *f;
struct stat st;
if (fstat(fd, &st))
return 0;
if ((f = __stdio_alloc())) {
f->fd = fd;
f->bufmode = ischardev(fd) ? _IOLBF : _IOFBF;
f->bufmode = S_ISREG(st.st_mode) ? _IOFBF : _IONBF;
f->iomode = fopenflags(mode);
f->buf = f->mem;
f->size = BUFSIZ;