mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-04 23:08:23 -05:00
107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
|
/* $OpenBSD: b_print.c,v 1.26 2019/06/28 05:47:57 deraadt Exp $ */
|
||
|
|
||
|
/* Theo de Raadt places this file in the public domain. */
|
||
|
|
||
|
#include <openssl/bio.h>
|
||
|
|
||
|
int
|
||
|
BIO_printf(BIO *bio, const char *format, ...)
|
||
|
{
|
||
|
va_list args;
|
||
|
int ret;
|
||
|
|
||
|
va_start(args, format);
|
||
|
ret = BIO_vprintf(bio, format, args);
|
||
|
va_end(args);
|
||
|
return (ret);
|
||
|
}
|
||
|
|
||
|
#ifdef HAVE_FUNOPEN
|
||
|
static int
|
||
|
_BIO_write(void *cookie, const char *buf, int nbytes)
|
||
|
{
|
||
|
return BIO_write(cookie, buf, nbytes);
|
||
|
}
|
||
|
|
||
|
int
|
||
|
BIO_vprintf(BIO *bio, const char *format, va_list args)
|
||
|
{
|
||
|
int ret;
|
||
|
FILE *fp;
|
||
|
|
||
|
fp = funopen(bio, NULL, &_BIO_write, NULL, NULL);
|
||
|
if (fp == NULL) {
|
||
|
ret = -1;
|
||
|
goto fail;
|
||
|
}
|
||
|
ret = vfprintf(fp, format, args);
|
||
|
fclose(fp);
|
||
|
fail:
|
||
|
return (ret);
|
||
|
}
|
||
|
|
||
|
#else /* !HAVE_FUNOPEN */
|
||
|
|
||
|
int
|
||
|
BIO_vprintf(BIO *bio, const char *format, va_list args)
|
||
|
{
|
||
|
int ret;
|
||
|
char *buf = NULL;
|
||
|
|
||
|
ret = vasprintf(&buf, format, args);
|
||
|
if (ret == -1)
|
||
|
return (ret);
|
||
|
BIO_write(bio, buf, ret);
|
||
|
free(buf);
|
||
|
return (ret);
|
||
|
}
|
||
|
|
||
|
#endif /* HAVE_FUNOPEN */
|
||
|
|
||
|
/*
|
||
|
* BIO_snprintf and BIO_vsnprintf return -1 for overflow,
|
||
|
* due to the history of this API. Justification:
|
||
|
*
|
||
|
* Traditional snprintf surfaced in 4.4BSD, and returned
|
||
|
* "number of bytes wanted". Solaris and Windows opted to
|
||
|
* return -1. A draft standard was written which returned -1.
|
||
|
* Due to the large volume of code already using the first
|
||
|
* semantics, the draft was repaired before standardization to
|
||
|
* specify "number of bytes wanted" plus "-1 for character conversion
|
||
|
* style errors". Solaris adapted to this rule, but Windows stuck
|
||
|
* with -1.
|
||
|
*
|
||
|
* Original OpenSSL comment which is full of lies:
|
||
|
*
|
||
|
* "In case of truncation, return -1 like traditional snprintf.
|
||
|
* (Current drafts for ISO/IEC 9899 say snprintf should return
|
||
|
* the number of characters that would have been written,
|
||
|
* had the buffer been large enough.)"
|
||
|
*/
|
||
|
int
|
||
|
BIO_snprintf(char *buf, size_t n, const char *format, ...)
|
||
|
{
|
||
|
va_list args;
|
||
|
int ret;
|
||
|
|
||
|
va_start(args, format);
|
||
|
ret = vsnprintf(buf, n, format, args);
|
||
|
va_end(args);
|
||
|
|
||
|
if (ret >= n || ret == -1)
|
||
|
return (-1);
|
||
|
return (ret);
|
||
|
}
|
||
|
|
||
|
int
|
||
|
BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
|
||
|
{
|
||
|
int ret;
|
||
|
|
||
|
ret = vsnprintf(buf, n, format, args);
|
||
|
|
||
|
if (ret >= n || ret == -1)
|
||
|
return (-1);
|
||
|
return (ret);
|
||
|
}
|