zephyr/lib/libc/minimal/source/stdout/stdout_console.c
Andy Ross 346cce31d8 kernel: Port remaining buildable syscalls to new API
These calls are buildable on common sanitycheck platforms, but are not
invoked at runtime in any tests accessible to CI.  The changes are
mostly mechanical, so the risk is low, but this commit is separated
from the main API change to allow for more careful review.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2019-09-12 11:31:50 +08:00

113 lines
2.1 KiB
C

/* stdout_console.c */
/*
* Copyright (c) 2014 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdio.h>
#include <sys/libc-hooks.h>
#include <syscall_handler.h>
#include <string.h>
static int _stdout_hook_default(int c)
{
(void)(c); /* Prevent warning about unused argument */
return EOF;
}
static int (*_stdout_hook)(int) = _stdout_hook_default;
void __stdout_hook_install(int (*hook)(int))
{
_stdout_hook = hook;
}
int z_impl_zephyr_fputc(int c, FILE *stream)
{
return (stdout == stream) ? _stdout_hook(c) : EOF;
}
#ifdef CONFIG_USERSPACE
static inline int z_vrfy_zephyr_fputc(int c, FILE *stream)
{
return z_impl_zephyr_fputc(c, stream);
}
#include <syscalls/zephyr_fputc_mrsh.c>
#endif
int fputc(int c, FILE *stream)
{
return zephyr_fputc(c, stream);
}
int fputs(const char *_MLIBC_RESTRICT string, FILE *_MLIBC_RESTRICT stream)
{
int len = strlen(string);
int ret;
ret = fwrite(string, len, 1, stream);
return len == ret ? 0 : EOF;
}
size_t z_impl_zephyr_fwrite(const void *_MLIBC_RESTRICT ptr, size_t size,
size_t nitems, FILE *_MLIBC_RESTRICT stream)
{
size_t i;
size_t j;
const unsigned char *p;
if ((stream != stdout) || (nitems == 0) || (size == 0)) {
return 0;
}
p = ptr;
i = nitems;
do {
j = size;
do {
if (_stdout_hook((int) *p++) == EOF) {
goto done;
}
j--;
} while (j > 0);
i--;
} while (i > 0);
done:
return (nitems - i);
}
#ifdef CONFIG_USERSPACE
static inline size_t z_vrfy_zephyr_fwrite(const void *_MLIBC_RESTRICT ptr,
size_t size, size_t nitems,
FILE *_MLIBC_RESTRICT stream)
{
Z_OOPS(Z_SYSCALL_MEMORY_ARRAY_READ(ptr, nitems, size));
return z_impl_zephyr_fwrite((const void *_MLIBC_RESTRICT)ptr, size,
nitems, (FILE *_MLIBC_RESTRICT)stream);
}
#include <syscalls/zephyr_fwrite_mrsh.c>
#endif
size_t fwrite(const void *_MLIBC_RESTRICT ptr, size_t size, size_t nitems,
FILE *_MLIBC_RESTRICT stream)
{
return zephyr_fwrite(ptr, size, nitems, stream);
}
int puts(const char *string)
{
if (fputs(string, stdout) == EOF) {
return EOF;
}
return fputc('\n', stdout) == EOF ? EOF : 0;
}