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Remove printf() linking hack

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Justine Tunney 2023-06-17 10:13:50 -07:00
parent ba03cd95c5
commit b881c0ec9e
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107 changed files with 1520 additions and 2577 deletions
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libc/stdio/vdprintf.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=8 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/iovec.internal.h"
#include "libc/dce.h"
#include "libc/fmt/fmt.h"
#include "libc/limits.h"
#include "libc/macros.internal.h"
#include "libc/nt/files.h"
#include "libc/sock/sock.h"
#include "libc/str/str.h"
#include "libc/sysv/errfuns.h"
struct VdprintfState {
int n, t, fd;
char b[1024];
};
static int vdprintf_putc(const char *s, struct VdprintfState *t, size_t n) {
struct iovec iov[2];
if (n) {
if (t->n + n < sizeof(t->b)) {
memcpy(t->b + t->n, s, n);
t->n += n;
} else {
iov[0].iov_base = t->b;
iov[0].iov_len = t->n;
iov[1].iov_base = s;
iov[1].iov_len = n;
if (WritevUninterruptible(t->fd, iov, 2) == -1) {
return -1;
}
t->t += t->n;
t->n = 0;
}
}
return 0;
}
/**
* Formats string directly to system i/o device.
* @asyncsignalsafe
* @vforksafe
*/
int(vdprintf)(int fd, const char *fmt, va_list va) {
struct iovec iov[1];
struct VdprintfState t;
t.n = 0;
t.t = 0;
t.fd = fd;
if (__fmt(vdprintf_putc, &t, fmt, va) == -1) return -1;
if (t.n) {
iov[0].iov_base = t.b;
iov[0].iov_len = t.n;
if (WritevUninterruptible(t.fd, iov, 1) == -1) {
return -1;
}
t.t += t.n;
}
return t.t;
}