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Fix issues with stdio needed for Lua

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See #61
This commit is contained in:
Justine Tunney 2021-03-06 16:06:15 -08:00
parent c3ed8d6c7f
commit d769df3482
17 changed files with 102 additions and 155 deletions
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39
libc/stdio/fputc.c
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@ -17,25 +17,10 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/errno.h"
#include "libc/stdio/internal.h"
#include "libc/stdio/stdio.h"
static noinstrument noinline int __fputc(int c, FILE *f) {
if (f->beg < f->size) {
f->buf[f->beg++] = c;
if (f->beg == f->size || f->bufmode == _IONBF ||
(f->bufmode == _IOLBF && c == '\n')) {
if (f->writer) {
if (f->writer(f) == -1) return -1;
} else if (f->beg == f->size) {
f->beg = 0;
}
}
return c & 0xff;
} else {
return __fseteof(f);
}
}
#include "libc/sysv/consts/o.h"
/**
* Writes byte to stream.
@ -43,10 +28,22 @@ static noinstrument noinline int __fputc(int c, FILE *f) {
* @see putc() if called within loop
*/
noinstrument int fputc(int c, FILE *f) {
if (f->beg + 1 < f->size && f->bufmode == _IOFBF) {
f->buf[f->beg++] = c;
return c & 0xff;
if ((f->iomode & O_ACCMODE) != O_RDONLY) {
if (f->beg < f->size) {
f->buf[f->beg++] = c;
if (f->beg == f->size || f->bufmode == _IONBF ||
(f->bufmode == _IOLBF && c == '\n')) {
if (f->writer) {
if (f->writer(f) == -1) return -1;
} else if (f->beg == f->size) {
f->beg = 0;
}
}
return c & 0xff;
} else {
return __fseteof(f);
}
} else {
return __fputc(c, f);
return __fseterr(f, EBADF);
}
}