Random number/string functions. More...

#include <stddef.h>
#include <stdint.h>

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Functions
uint64_t	mutt_rand64 (void)
	Create a 64-bit random number.

void	mutt_rand_base32 (char *buf, size_t buflen)
	Fill a buffer with a base32-encoded random string.

Detailed Description

Random number/string functions.

Authors

Richard Russon

Copyright: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file random.h.

Function Documentation

◆ mutt_rand64()

uint64_t mutt_rand64 ( void )

Create a 64-bit random number.

Return values

num	Random number

Definition at line 123 of file random.c.

{
  uint64_t num = 0;
 
  if (mutt_randbuf(&num, sizeof(num)) < 0)
    mutt_exit(1); // LCOV_EXCL_LINE
  return num;
}

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◆ mutt_rand_base32()

void mutt_rand_base32	(	char *	buf,
		size_t	buflen
	)

Fill a buffer with a base32-encoded random string.

Parameters

buf	Buffer for result
buflen	Length of buffer

Definition at line 106 of file random.c.

{
  if (!buf || (buflen == 0))
    return;
 
  uint8_t *p = (uint8_t *) buf;
 
  if (mutt_randbuf(p, buflen) < 0)
    mutt_exit(1); // LCOV_EXCL_LINE
  for (size_t pos = 0; pos < buflen; pos++)
    p[pos] = Base32[p[pos] % 32];
}