md5.c File Reference

#include <stdio.h>
#include <stdint.h>
#include "md5.h"

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Defines
#define	GET_U32_LE(n, b, i)
#define	PUT_U32_LE(n, b, i)
#define	S(x, n)   ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
#define	P(a, b, c, d, k, s, t)
#define	F(x, y, z)   (z ^ (x & (y ^ z)))
#define	F(x, y, z)   (y ^ (z & (x ^ y)))
#define	F(x, y, z)   (x ^ y ^ z)
#define	F(x, y, z)   (y ^ (x | ~z))
Functions
void	md5 (const unsigned char *input, size_t ilen, unsigned char output[16])
	Output = MD5( input buffer )
int	md5_file (const char *path, unsigned char output[16])
	Output = MD5( file contents )

---

Define Documentation

#define F	(		x,
			y,
			z
	)		(z ^ (x & (y ^ z)))

#define F	(		x,
			y,
			z
	)		(y ^ (z & (x ^ y)))

#define F	(		x,
			y,
			z
	)		(x ^ y ^ z)

#define F	(		x,
			y,
			z
	)		(y ^ (x | ~z))

#define GET_U32_LE	(		n,
			b,
			i
	)

Value:

{                                                       \
    (n) = ( (uint32_t) (b)[(i)    ]       )             \
        | ( (uint32_t) (b)[(i) + 1] <<  8 )             \
        | ( (uint32_t) (b)[(i) + 2] << 16 )             \
        | ( (uint32_t) (b)[(i) + 3] << 24 );            \
}

Definition at line 53 of file md5.c.

#define P	(		a,
			b,
			c,
			d,
			k,
			s,
			t
	)

Value:

{                                                       \
    a += F(b,c,d) + X[k] + t; a = S(a,s) + b;           \
}

#define PUT_U32_LE	(		n,
			b,
			i
	)

Value:

{                                                       \
    (b)[(i)    ] = (unsigned char) ( (n)       );       \
    (b)[(i) + 1] = (unsigned char) ( (n) >>  8 );       \
    (b)[(i) + 2] = (unsigned char) ( (n) >> 16 );       \
    (b)[(i) + 3] = (unsigned char) ( (n) >> 24 );       \
}

Definition at line 63 of file md5.c.

#define S	(		x,
			n
	)		((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))

---

Function Documentation

void md5	(	const unsigned char *	input,
		size_t	ilen,
		unsigned char	output[16]
	)

Output = MD5( input buffer )

Parameters:

input	buffer holding the data
ilen	length of the input data
output	MD5 checksum result

Definition at line 292 of file md5.c.

int md5_file	(	const char *	path,
		unsigned char	output[16]
	)

Output = MD5( file contents )

Parameters:

path	input file name
output	MD5 checksum result

Returns:

0 if successful, 1 if fopen failed, or 2 if fread failed

Definition at line 306 of file md5.c.

Referenced by alpm_compute_md5sum().

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