1 /* SPDX-License-Identifier: LGPL-2.1 OR MIT */
4  * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
20 #define EOF (-1)
23 /* Buffering mode used by setvbuf.  */
28 /* just define FILE as a non-empty type. The value of the pointer gives
41 /* provides a FILE* equivalent of fd. The mode is ignored. */
43 FILE *fdopen(int fd, const char *mode __attribute__((unused)))  in fdopen()  argument
52 /* provides the fd of stream. */
54 int fileno(FILE *stream)  in fileno()  argument
56 	intptr_t i = (intptr_t)stream;  in fileno()
60 		return -1;  in fileno()
65 /* flush a stream. */
67 int fflush(FILE *stream)  in fflush()  argument
69 	intptr_t i = (intptr_t)stream;  in fflush()
74 		return -1;  in fflush()
77 	/* Don't do anything, nolibc does not support buffering. */  in fflush()
81 /* flush a stream. */
83 int fclose(FILE *stream)  in fclose()  argument
85 	intptr_t i = (intptr_t)stream;  in fclose()
89 		return -1;  in fclose()
100 #define getc(stream) fgetc(stream)  argument
103 int fgetc(FILE* stream)  in fgetc()  argument
107 	if (read(fileno(stream), &ch, 1) <= 0)  in fgetc()
121 #define putc(c, stream) fputc(c, stream)  argument
124 int fputc(int c, FILE* stream)  in fputc()  argument
128 	if (write(fileno(stream), &ch, 1) <= 0)  in fputc()
142 /* internal fwrite()-like function which only takes a size and returns 0 on
146 int _fwrite(const void *buf, size_t size, FILE *stream)  in _fwrite()  argument
149 	int fd = fileno(stream);  in _fwrite()
155 		size -= ret;  in _fwrite()
162 size_t fwrite(const void *s, size_t size, size_t nmemb, FILE *stream)  in fwrite()  argument
167 		if (_fwrite(s, size, stream) != 0)  in fwrite()
175 int fputs(const char *s, FILE *stream)  in fputs()  argument
177 	return _fwrite(s, strlen(s), stream);  in fputs()
191 char *fgets(char *s, int size, FILE *stream)  in fgets()  argument
197 		c = fgetc(stream);  in fgets()
211  *  - %[l*]{d,u,c,x,p}
212  *  - %s
213  *  - unknown modifiers are ignored.
216 int vfprintf(FILE *stream, const char *fmt, va_list args)  in vfprintf()  argument
246 					/* sign-extend the value */  in vfprintf()
302 			len = ofs - 1;  in vfprintf()
304 			if (_fwrite(outstr, len, stream) != 0)  in vfprintf()
328 int fprintf(FILE *stream, const char *fmt, ...)  in fprintf()  argument
334 	ret = vfprintf(stream, fmt, args);  in fprintf()
358 int setvbuf(FILE *stream __attribute__((unused)),  in setvbuf()  argument
360 	    int mode,  in setvbuf()  argument
364 	 * nolibc does not support buffering so this is a nop. Just check mode  in setvbuf()
367 	switch (mode) {  in setvbuf()