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-rw-r--r--lib/libc/src/stdio/vsnprintf.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/lib/libc/src/stdio/vsnprintf.c b/lib/libc/src/stdio/vsnprintf.c
deleted file mode 100644
index 112ed1f..0000000
--- a/lib/libc/src/stdio/vsnprintf.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Hyra nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/types.h>
-#include <stdint.h>
-#include <stdio.h>
-
-static inline void
-printc(char *buf, size_t size, size_t *off, char c)
-{
- if (*off < size - 1) {
- buf[(*off)++] = c;
- }
- buf[*off] = 0;
-}
-
-static void
-printstr(char *buf, size_t size, size_t *off, const char *s)
-{
- while (*off < size - 1 && *s != '\0') {
- buf[(*off)++] = *(s)++;
- }
- buf[*off] = 0;
-}
-
-static void
-dec_to_str(int value, char *buf, size_t size, size_t *off)
-{
- size_t i = 0;
- uint8_t is_negative = 0;
- uint8_t tmp;
- char intbuf[4096];
-
- if (value == 0) {
- intbuf[i++] = '0';
- intbuf[i++] = '\0';
- printstr(buf, size, off, intbuf);
- return;
- }
-
- if (value < 0) {
- /* Easier to handle positive numbers */
- value *= -1;
- is_negative = 1;
- }
-
- while (value > 0) {
- intbuf[i++] = '0' + (value % 10);
- value /= 10;
- }
-
- if (is_negative) {
- intbuf[i++] = '-';
- }
-
- intbuf[i--] = '\0';
-
- /* Result is in reverse */
- for (int j = 0; j < i; ++j, --i) {
- tmp = intbuf[j];
- intbuf[j] = intbuf[i];
- intbuf[i] = tmp;
- }
-
- printstr(buf, size, off, intbuf);
-}
-
-int
-vsnprintf(char *s, size_t size, const char *fmt, va_list ap)
-{
- size_t tmp_len, off = 0;
- ssize_t num = 0;
- char c, c1;
- const char *tmp_str;
- int tmp_num;
-
- while (off < (size - 1)) {
- while (*fmt && *fmt != '%') {
- printc(s, size, &off, *fmt++);
- }
-
- if (*(fmt)++ == '\0' || off == size - 1) {
- return off;
- }
-
- c = *fmt++;
- switch (c) {
- case 'c':
- c1 = (char)va_arg(ap, int);
- printc(s, size, &off, c1);
- break;
- case 's':
- tmp_str = va_arg(ap, const char *);
- printstr(s, size, &off, tmp_str);
- break;
- case 'd':
- tmp_num = va_arg(ap, int);
- dec_to_str(tmp_num, s, size, &off);
- break;
- }
- }
-
- return 0;
-}