Added fseterr(3).

libmaxsi/decl/FILE.h

@@ -19,6 +19,7 @@ typedef struct _FILE
 	size_t (*write_func)(const void* ptr, size_t size, size_t nmemb, void* user);
 	int (*seek_func)(void* user, off_t offset, int whence);
 	off_t (*tell_func)(void* user);
+	void (*seterr_func)(void* user);
 	void (*clearerr_func)(void* user);
 	int (*eof_func)(void* user);
 	int (*error_func)(void* user);

libmaxsi/fdio.c

@@ -87,6 +87,12 @@ static off_t fdio_tell(void* user)
 	return lseek(fdio->fd, 0, SEEK_CUR);
 }
 
+static void fdio_seterr(void* user)
+{
+	fdio_t* fdio = (fdio_t*) user;
+	fdio->flags |= FDIO_ERROR;
+}
+
 static void fdio_clearerr(void* user)
 {
 	fdio_t* fdio = (fdio_t*) user;
@@ -143,6 +149,7 @@ int fdio_install(FILE* fp, const char* mode, int fd)
 	fp->write_func = fdio_write;
 	fp->seek_func = fdio_seek;
 	fp->tell_func = fdio_tell;
+	fp->seterr_func = fdio_seterr;
 	fp->clearerr_func = fdio_clearerr;
 	fp->eof_func = fdio_eof;
 	fp->error_func = fdio_error;

libmaxsi/file.c

@@ -104,6 +104,11 @@ int fseek(FILE* fp, long offset, int whence)
 	return fseeko(fp, offset, whence);
 }
 
+void fseterr(FILE* fp)
+{
+	if ( fp->seterr_func ) { fp->seterr_func(fp->user); }
+}
+
 void clearerr(FILE* fp)
 {
 	if ( fp->clearerr_func ) { fp->clearerr_func(fp->user); }

libmaxsi/include/stdio.h

@@ -159,6 +159,7 @@ extern char* tempnam(const char* dir, const char* pfx);
 #define fpending __fpending
 #define flushlbf _flushlbf
 #define fsetlocking __fsetlocking
+void fseterr(FILE* fp);
 void fregister(FILE* fp);
 void funregister(FILE* fp);
 FILE* fnewfile(void);