diff options
| -rw-r--r-- | lib/libc/include/stdio.h | 3 | ||||
| -rw-r--r-- | lib/libc/src/stdio/snprintf.c | 48 |
2 files changed, 50 insertions, 1 deletions
diff --git a/lib/libc/include/stdio.h b/lib/libc/include/stdio.h index 460b674..d94990b 100644 --- a/lib/libc/include/stdio.h +++ b/lib/libc/include/stdio.h @@ -76,9 +76,10 @@ size_t fread(void *__restrict ptr, size_t size, size_t n, FILE *__restrict strea size_t fwrite(const void *__restrict ptr, size_t size, size_t n, FILE *__restrict stream); int vsnprintf(char *s, size_t size, const char *fmt, va_list ap); +int snprintf(char *s, size_t size, const char *fmt, ...); int fputc(int c, FILE *stream); -int putchar(int c); +int putchar(int c); int fgetc(FILE *stream); int getchar(void); diff --git a/lib/libc/src/stdio/snprintf.c b/lib/libc/src/stdio/snprintf.c new file mode 100644 index 0000000..e343b77 --- /dev/null +++ b/lib/libc/src/stdio/snprintf.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2023-2025 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 <stdio.h> +#include <stddef.h> + +/* TODO FIXME: Use stdarg.h */ +#define __va_start(ap, fmt) __builtin_va_start(ap, fmt) +#define __va_end(ap) __builtin_va_end(ap) + +int +snprintf(char *s, size_t size, const char *fmt, ...) +{ + va_list ap; + int ret; + + __va_start(ap, fmt); + ret = vsnprintf(s, size, fmt, ap); + __va_end(ap); + return ret; +} |