ac74d8b652
Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
103 lines
1.8 KiB
C
103 lines
1.8 KiB
C
/* sprintf.c */
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/*
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* Copyright (c) 1997-2010, 2013-2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdarg.h>
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#include <stdio.h>
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extern int _prf(int (*func)(), void *dest,
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const char *format, va_list vargs);
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struct emitter {
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char *ptr;
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int len;
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};
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static int sprintf_out(int c, struct emitter *p)
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{
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if (p->len > 1) { /* need to reserve a byte for EOS */
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*(p->ptr) = c;
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p->ptr += 1;
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p->len -= 1;
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}
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return 0; /* indicate keep going so we get the total count */
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}
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int snprintf(char *_Restrict s, size_t len, const char *_Restrict format, ...)
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{
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va_list vargs;
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struct emitter p;
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int r;
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char dummy;
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if (len == 0) {
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s = &dummy; /* write final NUL to dummy, can't change *s */
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}
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p.ptr = s;
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p.len = (int) len;
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va_start(vargs, format);
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r = _prf(sprintf_out, (void *) (&p), format, vargs);
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va_end(vargs);
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*(p.ptr) = 0;
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return r;
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}
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int sprintf(char *_Restrict s, const char *_Restrict format, ...)
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{
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va_list vargs;
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struct emitter p;
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int r;
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p.ptr = s;
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p.len = (int) 0x7fffffff; /* allow up to "maxint" characters */
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va_start(vargs, format);
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r = _prf(sprintf_out, (void *) (&p), format, vargs);
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va_end(vargs);
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*(p.ptr) = 0;
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return r;
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}
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int vsnprintf(char *_Restrict s, size_t len, const char *_Restrict format, va_list vargs)
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{
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struct emitter p;
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int r;
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char dummy;
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if (len == 0) {
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s = &dummy; /* write final NUL to dummy, can't change * *s */
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}
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p.ptr = s;
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p.len = (int) len;
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r = _prf(sprintf_out, (void *) (&p), format, vargs);
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*(p.ptr) = 0;
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return r;
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}
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int vsprintf(char *_Restrict s, const char *_Restrict format, va_list vargs)
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{
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struct emitter p;
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int r;
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p.ptr = s;
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p.len = (int) 0x7fffffff; /* allow up to "maxint" characters */
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r = _prf(sprintf_out, (void *) (&p), format, vargs);
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*(p.ptr) = 0;
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return r;
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}
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