libc: remove obsolete sha1hash.c source file

The source file is not part of the C library build, so the Android.mk
is unaffected. In other words, this source file was never compiled.

Change-Id: Idec3d5b6ec30dc9ee38296d12dc6e522997df29a

1 files changed, 0 insertions, 316 deletions

diff --git a/libc/stdlib/sha1hash.c b/libc/stdlib/sha1hash.c
deleted file mode 100644
index 1c7aaf3..0000000
--- a/libc/stdlib/sha1hash.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
-SHA-1 in C
-By Steve Reid <sreid@sea-to-sky.net>
-100% Public Domain
-
------------------
-Modified 7/98
-By James H. Brown <jbrown@burgoyne.com>
-Still 100% Public Domain
-
-Corrected a problem which generated improper hash values on 16 bit machines
-Routine SHA1Update changed from
-	void SHA1Update(SHA1_CTX* context, unsigned char* data, unsigned int
-len)
-to
-	void SHA1Update(SHA1_CTX* context, unsigned char* data, unsigned
-long len)
-
-The 'len' parameter was declared an int which works fine on 32 bit machines.
-However, on 16 bit machines an int is too small for the shifts being done
-against
-it.  This caused the hash function to generate incorrect values if len was
-greater than 8191 (8K - 1) due to the 'len << 3' on line 3 of SHA1Update().
-
-Since the file IO in main() reads 16K at a time, any file 8K or larger would
-be guaranteed to generate the wrong hash (e.g. Test Vector #3, a million
-"a"s).
-
-I also changed the declaration of variables i & j in SHA1Update to
-unsigned long from unsigned int for the same reason.
-
-These changes should make no difference to any 32 bit implementations since
-an
-int and a long are the same size in those environments.
-
---
-I also corrected a few compiler warnings generated by Borland C.
-1. Added #include <process.h> for exit() prototype
-2. Removed unused variable 'j' in SHA1Final
-3. Changed exit(0) to return(0) at end of main.
-
-ALL changes I made can be located by searching for comments containing 'JHB'
------------------
-Modified 8/98
-By Steve Reid <sreid@sea-to-sky.net>
-Still 100% public domain
-
-1- Removed #include <process.h> and used return() instead of exit()
-2- Fixed overwriting of finalcount in SHA1Final() (discovered by Chris Hall)
-3- Changed email address from steve@edmweb.com to sreid@sea-to-sky.net
-
------------------
-Modified 4/01
-By Saul Kravitz <Saul.Kravitz@celera.com>
-Still 100% PD
-Modified to run on Compaq Alpha hardware.
-
------------------
-Modified 2/03
-By H. Peter Anvin <hpa@zytor.com>
-Still 100% PD
-Modified to run on any hardware with <inttypes.h> and <netinet/in.h>
-Changed the driver program
-
-*/
-
-/*
-Test Vectors (from FIPS PUB 180-1)
-"abc"
-  A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
-"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
-  84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
-A million repetitions of "a"
-  34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
-*/
-
-/* #define SHA1HANDSOFF  */
-
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <netinet/in.h>		/* For htonl/ntohl/htons/ntohs */
-
-/* #include <process.h> */	/* prototype for exit() - JHB */
-/* Using return() instead of exit() - SWR */
-
-typedef struct {
-    uint32_t state[5];
-    uint32_t count[2];
-    unsigned char buffer[64];
-} SHA1_CTX;
-
-void SHA1Transform(uint32_t state[5], unsigned char buffer[64]);
-void SHA1Init(SHA1_CTX* context);
-void SHA1Update(SHA1_CTX* context, unsigned char* data, uint32_t len);	/*
-JHB */
-void SHA1Final(unsigned char digest[20], SHA1_CTX* context);
-
-#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
-
-/* blk0() and blk() perform the initial expand. */
-/* I got the idea of expanding during the round function from SSLeay */
-#define blk0(i) (block->l[i] = ntohl(block->l[i]))
-#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
-    ^block->l[(i+2)&15]^block->l[i&15],1))
-
-/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
-#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
-#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
-#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
-#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
-#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
-
-
-#ifdef VERBOSE  /* SAK */
-void SHAPrintContext(SHA1_CTX *context, char *msg){
-  printf("%s (%d,%d) %x %x %x %x %x\n",
-	 msg,
-	 context->count[0], context->count[1],
-	 context->state[0],
-	 context->state[1],
-	 context->state[2],
-	 context->state[3],
-	 context->state[4]);
-}
-#endif
-
-/* Hash a single 512-bit block. This is the core of the algorithm. */
-
-void SHA1Transform(uint32_t state[5], unsigned char buffer[64])
-{
-uint32_t a, b, c, d, e;
-typedef union {
-    unsigned char c[64];
-    uint32_t l[16];
-} CHAR64LONG16;
-CHAR64LONG16* block;
-#ifdef SHA1HANDSOFF
-static unsigned char workspace[64];
-    block = (CHAR64LONG16*)workspace;
-    memcpy(block, buffer, 64);
-#else
-    block = (CHAR64LONG16*)buffer;
-#endif
-    /* Copy context->state[] to working vars */
-    a = state[0];
-    b = state[1];
-    c = state[2];
-    d = state[3];
-    e = state[4];
-    /* 4 rounds of 20 operations each. Loop unrolled. */
-    R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
-    R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
-    R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
-    R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
-    R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
-    R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
-    R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
-    R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
-    R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
-    R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
-    R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
-    R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
-    R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
-    R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
-    R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
-    R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
-    R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
-    R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
-    R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
-    R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
-    /* Add the working vars back into context.state[] */
-    state[0] += a;
-    state[1] += b;
-    state[2] += c;
-    state[3] += d;
-    state[4] += e;
-    /* Wipe variables */
-    a = b = c = d = e = 0;
-}
-
-
-/* SHA1Init - Initialize new context */
-
-void SHA1Init(SHA1_CTX* context)
-{
-    /* SHA1 initialization constants */
-    context->state[0] = 0x67452301;
-    context->state[1] = 0xEFCDAB89;
-    context->state[2] = 0x98BADCFE;
-    context->state[3] = 0x10325476;
-    context->state[4] = 0xC3D2E1F0;
-    context->count[0] = context->count[1] = 0;
-}
-
-
-/* Run your data through this. */
-
-void SHA1Update(SHA1_CTX* context, unsigned char* data, uint32_t len)	/*
-JHB */
-{
-uint32_t i, j;	/* JHB */
-
-#ifdef VERBOSE
-    SHAPrintContext(context, "before");
-#endif
-    j = (context->count[0] >> 3) & 63;
-    if ((context->count[0] += len << 3) < (len << 3)) context->count[1]++;
-    context->count[1] += (len >> 29);
-    if ((j + len) > 63) {
-        memcpy(&context->buffer[j], data, (i = 64-j));
-        SHA1Transform(context->state, context->buffer);
-        for ( ; i + 63 < len; i += 64) {
-            SHA1Transform(context->state, &data[i]);
-        }
-        j = 0;
-    }
-    else i = 0;
-    memcpy(&context->buffer[j], &data[i], len - i);
-#ifdef VERBOSE
-    SHAPrintContext(context, "after ");
-#endif
-}
-
-
-/* Add padding and return the message digest. */
-
-void SHA1Final(unsigned char digest[20], SHA1_CTX* context)
-{
-uint32_t i;	/* JHB */
-unsigned char finalcount[8];
-
-    for (i = 0; i < 8; i++) {
-        finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
-         >> ((3-(i & 3)) * 8) ) & 255);  /* Endian independent */
-    }
-    SHA1Update(context, (unsigned char *)"\200", 1);
-    while ((context->count[0] & 504) != 448) {
-        SHA1Update(context, (unsigned char *)"\0", 1);
-    }
-    SHA1Update(context, finalcount, 8);  /* Should cause a SHA1Transform() */
-    for (i = 0; i < 20; i++) {
-        digest[i] = (unsigned char)
-         ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
-    }
-    /* Wipe variables */
-    i = 0;	/* JHB */
-    memset(context->buffer, 0, 64);
-    memset(context->state, 0, 20);
-    memset(context->count, 0, 8);
-    memset(finalcount, 0, 8);	/* SWR */
-#ifdef SHA1HANDSOFF  /* make SHA1Transform overwrite it's own static vars */
-    SHA1Transform(context->state, context->buffer);
-#endif
-}
-
-/*************************************************************/
-
-/* This is not quite the MIME base64 algorithm: it uses _ instead of /,
-   and instead of padding the output with = characters we just make the
-   output shorter. */
-char *mybase64(uint8_t digest[20])
-{
-  static const char charz[] =
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
-  uint8_t input[21];
-  static char output[28];
-  int i, j;
-  uint8_t *p;
-  char *q;
-  uint32_t bv;
-
-  memcpy(input, digest, 20);
-  input[20] = 0;		/* Pad to multiple of 3 bytes */
-
-  p = input;  q = output;
-  for ( i = 0 ; i < 7 ; i++ ) {
-    bv = (p[0] << 16) | (p[1] << 8) | p[2];
-    p += 3;
-    for ( j = 0 ; j < 4 ; j++ ) {
-      *q++ = charz[(bv >> 18) & 0x3f];
-      bv <<= 6;
-    }
-  }
-  *--q = '\0';			/* The last character is not significant */
-  return output;
-}
-
-int main(int argc, char** argv)
-{
-  int i;
-  SHA1_CTX context;
-  uint8_t digest[20], buffer[16384];
-  FILE* file;
-
-  if (argc < 2) {
-    file = stdin;
-  }
-  else {
-    if (!(file = fopen(argv[1], "rb"))) {
-      fputs("Unable to open file.", stderr);
-      return(-1);
-    }
-  }
-  SHA1Init(&context);
-  while (!feof(file)) {  /* note: what if ferror(file) */
-    i = fread(buffer, 1, 16384, file);
-    SHA1Update(&context, buffer, i);
-  }
-  SHA1Final(digest, &context);
-  fclose(file);
-
-  puts(mybase64(digest));
-
-  return 0;
-}