79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/alg/arraylist2.h"
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#include "libc/calls/calls.h"
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#include "libc/errno.h"
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#include "libc/fmt/fmt.h"
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#include "libc/mem/mem.h"
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#include "libc/str/tpencode.h"
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#include "tool/build/lib/buffer.h"
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void AppendChar(struct Buffer *b, char c) {
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APPEND(&b->p, &b->i, &b->n, &c);
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}
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void AppendData(struct Buffer *b, char *data, size_t len) {
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CONCAT(&b->p, &b->i, &b->n, data, len);
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}
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void AppendStr(struct Buffer *b, const char *s) {
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AppendData(b, s, strlen(s));
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}
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void AppendWide(struct Buffer *b, wint_t wc) {
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char cbuf[8];
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AppendData(b, cbuf, tpencode(cbuf, 8, wc, false));
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}
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void AppendFmt(struct Buffer *b, const char *fmt, ...) {
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int size;
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char *tmp;
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va_list va;
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tmp = NULL;
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va_start(va, fmt);
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size = vasprintf(&tmp, fmt, va);
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va_end(va);
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if (size != -1) AppendData(b, tmp, size);
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free(tmp);
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}
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/**
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* Writes buffer until completion, interrupt, or error occurs.
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*/
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ssize_t WriteBuffer(struct Buffer *b, int fd) {
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char *p;
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ssize_t rc;
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size_t wrote, n;
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p = b->p;
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n = b->i;
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do {
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if ((rc = write(fd, p, n)) != -1) {
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wrote = rc;
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p += wrote;
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n -= wrote;
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} else if (errno == EINTR) {
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break;
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} else {
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return -1;
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}
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} while (n);
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return 0;
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}
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