lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 229 insertions, 0 deletions

diff --git a/lib/mlibc/options/ansi/include/stdio.h b/lib/mlibc/options/ansi/include/stdio.h
new file mode 100644
index 0000000..168a3c7
--- /dev/null
+++ b/lib/mlibc/options/ansi/include/stdio.h
@@ -0,0 +1,229 @@
+
+#ifndef _STDIO_H
+#define _STDIO_H
+
+#include <abi-bits/seek-whence.h>
+#include <bits/null.h>
+#include <bits/size_t.h>
+#include <mlibc-config.h>
+
+// Glibc extensions require ssize_t.
+#include <bits/ssize_t.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// [C11-7.21.1] I/O related types
+
+#define __MLIBC_EOF_BIT 1
+#define __MLIBC_ERROR_BIT 2
+
+struct __mlibc_file_base {
+	// Buffer for I/O operations.
+	// We reserve a few extra bytes for ungetc operations. This means
+	// that __buffer_ptr will point a few bytes *into* the allocation.
+	char *__buffer_ptr;
+
+	// Number of bytes the buffer can hold.
+	size_t __buffer_size;
+
+	// Current offset inside the buffer.
+	size_t __offset;
+
+	// Position inside the buffer that matches the current file pointer.
+	size_t __io_offset;
+
+	// Valid region of the buffer.
+	size_t __valid_limit;
+
+	// Begin and end of the dirty region inside the buffer.
+	size_t __dirty_begin;
+	size_t __dirty_end;
+
+	// This points to the same place as __buffer_ptr, or a few bytes earlier
+	// if there are bytes pushed by ungetc. If buffering is disabled, calls
+	// to ungetc will trigger an allocation.
+	char *__unget_ptr;
+
+	// 0 if we are currently reading from the buffer.
+	// 1 if we are currently writing to the buffer.
+	// This is only really important for pipe-like streams.
+	int __io_mode;
+
+	// EOF and error bits.
+	int __status_bits;
+};
+
+typedef struct __mlibc_file_base FILE;
+typedef size_t fpos_t;
+
+// [C11-7.21.1] I/O related macros
+
+#define _IOFBF 1
+#define _IOLBF 2
+#define _IONBF 3
+
+#define BUFSIZ 512
+
+#define EOF (-1)
+
+#define FOPEN_MAX 1024
+#define FILENAME_MAX 256
+#define L_tmpnam 256
+
+#define TMP_MAX 1024
+
+#ifndef __MLIBC_ABI_ONLY
+
+extern FILE *stderr;
+extern FILE *stdin;
+extern FILE *stdout;
+
+// [C11-7.21.4] Operations on files
+
+int remove(const char *filename);
+int rename(const char *old_path, const char *new_path);
+int renameat(int olddirfd, const char *old_path, int newdirfd, const char *new_path);
+FILE *tmpfile(void);
+char *tmpnam(char *buffer);
+
+// [C11-7.21.5] File access functions
+
+int fclose(FILE *stream);
+int fflush(FILE *stream);
+FILE *fopen(const char *__restrict filename, const char *__restrict mode);
+FILE *freopen(const char *__restrict filename, const char *__restrict mode, FILE *__restrict stream);
+void setbuf(FILE *__restrict stream, char *__restrict buffer);
+int setvbuf(FILE *__restrict stream, char *__restrict buffer, int mode, size_t size);
+void setlinebuf(FILE *stream);
+void setbuffer(FILE *, char *, size_t);
+
+// [C11-7.21.6] Formatted input/output functions
+
+__attribute__((__format__(printf, 2, 3)))
+int fprintf(FILE *__restrict stream, const char *__restrict format, ...);
+
+__attribute__((__format__(scanf, 2, 3)))
+int fscanf(FILE *__restrict stream, const char *__restrict format, ...);
+
+__attribute__((__format__(printf, 1, 2)))
+int printf(const char *__restrict format, ...);
+
+__attribute__((__format__(scanf, 1, 2)))
+int scanf(const char *__restrict format, ...);
+
+__attribute__((__format__(printf, 3, 4)))
+int snprintf(char *__restrict buffer, size_t max_size, const char *__restrict format, ...);
+
+__attribute__((__format__(printf, 2, 3)))
+int sprintf(char *__restrict buffer, const char *__restrict format, ...);
+
+__attribute__((__format__(scanf, 2, 3)))
+int sscanf(const char *__restrict buffer, const char *__restrict format, ...);
+
+__attribute__((__format__(printf, 2, 0)))
+int vfprintf(FILE *__restrict stream, const char *__restrict format, __builtin_va_list args);
+
+__attribute__((__format__(scanf, 2, 0)))
+int vfscanf(FILE *__restrict stream, const char *__restrict format, __builtin_va_list args);
+
+__attribute__((__format__(printf, 1, 0)))
+int vprintf(const char *__restrict format, __builtin_va_list args);
+
+__attribute__((__format__(scanf, 1, 0)))
+int vscanf(const char *__restrict format, __builtin_va_list args);
+
+__attribute__((__format__(printf, 3, 0)))
+int vsnprintf(char *__restrict buffer, size_t max_size,
+		const char *__restrict format, __builtin_va_list args);
+
+__attribute__((__format__(printf, 2, 0)))
+int vsprintf(char *__restrict buffer, const char *__restrict format, __builtin_va_list args);
+
+__attribute__((__format__(scanf, 2, 0)))
+int vsscanf(const char *__restrict buffer, const char *__restrict format, __builtin_va_list args);
+
+// this is a gnu extension
+__attribute__((__format__(printf, 2, 0)))
+int vasprintf(char **, const char *, __builtin_va_list);
+
+// [C11-7.21.7] Character input/output functions
+
+int fgetc(FILE *stream);
+char *fgets(char *__restrict buffer, size_t max_size, FILE *__restrict stream);
+int fputc(int c, FILE *stream);
+int fputs(const char *__restrict string, FILE *__restrict stream);
+char *gets(char *s);
+int getc(FILE *stream);
+int getchar(void);
+int putc(int c, FILE *stream);
+int putchar(int c);
+int puts(const char *string);
+int ungetc(int c, FILE *stream);
+
+// [C11-7.21.8] Direct input/output functions
+
+size_t fread(void *__restrict buffer, size_t size, size_t count, FILE *__restrict stream);
+size_t fwrite(const void *__restrict buffer, size_t size, size_t count, FILE *__restrict stream);
+
+// [C11-7.21.9] File positioning functions
+
+int fgetpos(FILE *__restrict stream, fpos_t *__restrict position);
+int fseek(FILE *stream, long offset, int whence);
+int fsetpos(FILE *stream, const fpos_t *position);
+long ftell(FILE *stream);
+void rewind(FILE *stream);
+
+// [C11-7.21.10] Error handling functions
+
+void clearerr(FILE *stream);
+int feof(FILE *stream);
+int ferror(FILE *stream);
+void perror(const char *string);
+
+// POSIX unlocked I/O extensions.
+
+int getc_unlocked(FILE *);
+int getchar_unlocked(void);
+int putc_unlocked(int, FILE *);
+int putchar_unlocked(int);
+
+// GLIBC extensions.
+
+ssize_t getline(char **, size_t *, FILE *);
+ssize_t getdelim(char **, size_t *, int, FILE *);
+
+int asprintf(char **, const char *, ...);
+
+// Linux unlocked I/O extensions.
+
+void flockfile(FILE *);
+void funlockfile(FILE *);
+int ftrylockfile(FILE *);
+
+void clearerr_unlocked(FILE *);
+int feof_unlocked(FILE *);
+int ferror_unlocked(FILE *);
+int fileno_unlocked(FILE *);
+int fflush_unlocked(FILE *);
+int fgetc_unlocked(FILE *);
+int fputc_unlocked(int, FILE *);
+size_t fread_unlocked(void *__restrict, size_t, size_t, FILE *__restrict);
+size_t fwrite_unlocked(const void *__restrict, size_t, size_t, FILE *__restrict);
+
+char *fgets_unlocked(char *, int, FILE *);
+int fputs_unlocked(const char *, FILE *);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#if __MLIBC_POSIX_OPTION
+#	include <bits/posix/posix_stdio.h>
+#endif
+
+#endif // _STDIO_H
+