Fix some build warnings.
This commit is contained in:
parent
68d1ab58b7
commit
18daef7808
121
core/c/base64.c
121
core/c/base64.c
@ -57,7 +57,7 @@
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#include "base64.h"
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#include "base64.h"
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/* aaaack but it's fast and const should make it shared text page. */
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/* aaaack but it's fast and const should make it shared text page. */
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static const unsigned char pr2six[256] =
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static const unsigned char b64ToBits[256] =
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{
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{
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/* ASCII table */
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/* ASCII table */
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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@ -80,58 +80,39 @@ static const unsigned char pr2six[256] =
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size_t mpw_base64_decode_max(const char *b64Text) {
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size_t mpw_base64_decode_max(const char *b64Text) {
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register const uint8_t *bufin;
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register const uint8_t *b64Cursor = (uint8_t *)b64Text;
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register int nprbytes;
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while (b64ToBits[*(b64Cursor++)] <= 63);
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int b64Size = (int)(b64Cursor - (uint8_t *)b64Text) - 1;
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bufin = (uint8_t *)b64Text;
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// Every 4 b64 chars yield 3 plain bytes => len = 3 * ceil(b64Size / 4)
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while (pr2six[*(bufin++)] <= 63);
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return (size_t)(3 /*bytes*/ * ((b64Size + 4 /*chars*/ - 1) / 4 /*chars*/));
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nprbytes = (int)(bufin - (uint8_t *)b64Text) - 1;
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return (size_t)(((nprbytes + 3) / 4) * 3);
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}
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}
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int mpw_base64_decode(uint8_t *plainBuf, size_t plainMax, const char *b64Text) {
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int mpw_base64_decode(uint8_t *plainBuf, const char *b64Text) {
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register const uint8_t *bufin;
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register const uint8_t *b64Cursor = (uint8_t *)b64Text;
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register uint8_t *bufout;
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while (b64ToBits[*(b64Cursor++)] <= 63);
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register int nprbytes;
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int b64Remaining = (int)(b64Cursor - (uint8_t *)b64Text) - 1;
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bufin = (uint8_t *)b64Text;
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b64Cursor = (uint8_t *)b64Text;
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while (pr2six[*(bufin++)] <= 63);
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register uint8_t *plainCursor = plainBuf;
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nprbytes = (int)(bufin - (uint8_t *)b64Text) - 1;
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while (b64Remaining > 4) {
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*(plainCursor++) = (b64ToBits[b64Cursor[0]] << 2 | b64ToBits[b64Cursor[1]] >> 4);
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bufout = plainBuf;
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*(plainCursor++) = (b64ToBits[b64Cursor[1]] << 4 | b64ToBits[b64Cursor[2]] >> 2);
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bufin = (uint8_t *)b64Text;
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*(plainCursor++) = (b64ToBits[b64Cursor[2]] << 6 | b64ToBits[b64Cursor[3]]);
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b64Cursor += 4;
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while (nprbytes > 4) {
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b64Remaining -= 4;
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if (bufout + 2 >= plainBuf + plainMax)
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return -1;
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*(bufout++) = (pr2six[*bufin] << 2 | pr2six[bufin[1]] >> 4);
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*(bufout++) = (pr2six[bufin[1]] << 4 | pr2six[bufin[2]] >> 2);
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*(bufout++) = (pr2six[bufin[2]] << 6 | pr2six[bufin[3]]);
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bufin += 4;
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nprbytes -= 4;
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}
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}
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/* Note: (nprbytes == 1) would be an error, so just ingore that case */
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/* Note: (b64Size == 1) would be an error, so just ingore that case */
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if (nprbytes > 1) {
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if (b64Remaining > 1)
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if (bufout >= plainBuf + plainMax)
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*(plainCursor++) = (b64ToBits[b64Cursor[0]] << 2 | b64ToBits[b64Cursor[1]] >> 4);
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return -1;
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if (b64Remaining > 2)
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*(bufout++) = (pr2six[*bufin] << 2 | pr2six[bufin[1]] >> 4);
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*(plainCursor++) = (b64ToBits[b64Cursor[1]] << 4 | b64ToBits[b64Cursor[2]] >> 2);
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}
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if (b64Remaining > 3)
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if (nprbytes > 2) {
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*(plainCursor++) = (b64ToBits[b64Cursor[2]] << 6 | b64ToBits[b64Cursor[3]]);
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if (bufout >= plainBuf + plainMax)
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return -1;
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*(bufout++) = (pr2six[bufin[1]] << 4 | pr2six[bufin[2]] >> 2);
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}
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if (nprbytes > 3) {
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if (bufout >= plainBuf + plainMax)
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return -1;
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*(bufout++) = (pr2six[bufin[2]] << 6 | pr2six[bufin[3]]);
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}
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return (int)(bufout - plainBuf);
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return (int)(plainCursor - plainBuf);
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}
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}
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static const char basis_64[] =
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static const char basis_64[] =
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@ -143,40 +124,32 @@ size_t mpw_base64_encode_max(size_t plainSize) {
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return 4 /*chars*/ * (plainSize + 3 /*bytes*/ - 1) / 3 /*bytes*/;
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return 4 /*chars*/ * (plainSize + 3 /*bytes*/ - 1) / 3 /*bytes*/;
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}
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}
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int mpw_base64_encode(char *b64Text, size_t b64Max, const uint8_t *plainBuf, size_t plainSize) {
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int mpw_base64_encode(char *b64Text, const uint8_t *plainBuf, size_t plainSize) {
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int i;
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int plainCursor = 0;
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char *p;
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char *b64Cursor = b64Text;
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for (; plainCursor < plainSize - 2; plainCursor += 3) {
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p = b64Text;
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*b64Cursor++ = basis_64[((plainBuf[plainCursor] >> 2)) & 0x3F];
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for (i = 0; i < plainSize - 2; i += 3) {
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*b64Cursor++ = basis_64[((plainBuf[plainCursor] & 0x3) << 4) |
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if (p >= b64Text + b64Max)
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((plainBuf[plainCursor + 1] & 0xF0) >> 4)];
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return -1;
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*b64Cursor++ = basis_64[((plainBuf[plainCursor + 1] & 0xF) << 2) |
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((plainBuf[plainCursor + 2] & 0xC0) >> 6)];
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*p++ = basis_64[(plainBuf[i] >> 2) & 0x3F];
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*b64Cursor++ = basis_64[plainBuf[plainCursor + 2] & 0x3F];
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*p++ = basis_64[((plainBuf[i] & 0x3) << 4) |
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((plainBuf[i + 1] & 0xF0) >> 4)];
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*p++ = basis_64[((plainBuf[i + 1] & 0xF) << 2) |
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((plainBuf[i + 2] & 0xC0) >> 6)];
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*p++ = basis_64[plainBuf[i + 2] & 0x3F];
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}
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}
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if (i < plainSize) {
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if (plainCursor < plainSize) {
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if (p + 3 >= b64Text + b64Max)
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*b64Cursor++ = basis_64[(plainBuf[plainCursor] >> 2) & 0x3F];
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return -1;
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if (plainCursor == (plainSize - 1)) {
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*b64Cursor++ = basis_64[((plainBuf[plainCursor] & 0x3) << 4)];
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*p++ = basis_64[(plainBuf[i] >> 2) & 0x3F];
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*b64Cursor++ = '=';
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if (i == (plainSize - 1)) {
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*p++ = basis_64[((plainBuf[i] & 0x3) << 4)];
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*p++ = '=';
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}
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}
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else {
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else {
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*p++ = basis_64[((plainBuf[i] & 0x3) << 4) |
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*b64Cursor++ = basis_64[((plainBuf[plainCursor] & 0x3) << 4) |
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((plainBuf[i + 1] & 0xF0) >> 4)];
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((plainBuf[plainCursor + 1] & 0xF0) >> 4)];
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*p++ = basis_64[((plainBuf[i + 1] & 0xF) << 2)];
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*b64Cursor++ = basis_64[((plainBuf[plainCursor + 1] & 0xF) << 2)];
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}
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}
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*p++ = '=';
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*b64Cursor++ = '=';
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}
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}
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*p = '\0';
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*b64Cursor = '\0';
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return (int)(p - b64Text);
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return (int)(b64Cursor - b64Text);
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}
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}
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@ -62,18 +62,17 @@
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*/
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*/
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size_t mpw_base64_decode_max(const char *b64Text);
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size_t mpw_base64_decode_max(const char *b64Text);
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/** Decodes a base-64 encoded string into a plain byte buffer.
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/** Decodes a base-64 encoded string into a plain byte buffer.
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* @param plainMax the maximum amount of bytes to write to plainBuf.
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* @param plainBuf a byte buffer, size should be at least mpw_base64_decode_max(b64Text)
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* @return The amount of bytes that were written to plainBuf or -1 if this amount would have exceeded plainMax.
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* @return The amount of bytes that were written to plainBuf.
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*/
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*/
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int mpw_base64_decode(uint8_t *plainBuf, size_t plainMax, const char *b64Text);
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int mpw_base64_decode(uint8_t *plainBuf, const char *b64Text);
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/**
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/**
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* @return The amount of characters needed to encode a plainBuf of the given size as base-64 (excluding the terminating NUL).
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* @return The amount of characters needed to encode a plainBuf of the given size as base-64 (excluding the terminating NUL).
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*/
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*/
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size_t mpw_base64_encode_max(size_t plainSize);
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size_t mpw_base64_encode_max(size_t plainSize);
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/** Encodes a plain byte buffer into a base-64 encoded string.
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/** Encodes a plain byte buffer into a base-64 encoded string.
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* @param b64Max the maximum amount of characters to write to b64Text, excluding the terminating NUL.
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* @param b64Text a character buffer, size should be at least mpw_base64_encode_max(plainSize) + 1
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* @return The amount of characters that were written to b64Text, excluding the terminating NUL
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* @return The amount of characters that were written to b64Text, excluding the terminating NUL.
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* or -1 if this amount would have exceeded b64Max.
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*/
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*/
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int mpw_base64_encode(char *b64Text, size_t b64Max, const uint8_t *plainBuf, size_t plainSize);
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int mpw_base64_encode(char *b64Text, const uint8_t *plainBuf, size_t plainSize);
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@ -163,7 +163,7 @@ const char *mpw_encrypt_v0(
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// Base64-encode
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// Base64-encode
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size_t b64Max = mpw_base64_encode_max( bufSize );
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size_t b64Max = mpw_base64_encode_max( bufSize );
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char *cipherText = calloc( 1, b64Max + 1 );
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char *cipherText = calloc( 1, b64Max + 1 );
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if (mpw_base64_encode( cipherText, b64Max, cipherBuf, bufSize ) < 0) {
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if (mpw_base64_encode( cipherText, cipherBuf, bufSize ) < 0) {
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err( "Base64 encoding error." );
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err( "Base64 encoding error." );
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mpw_free_string( cipherText );
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mpw_free_string( cipherText );
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cipherText = NULL;
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cipherText = NULL;
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@ -178,14 +178,14 @@ const char *mpw_decrypt_v0(
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MPMasterKey masterKey, const char *cipherText) {
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MPMasterKey masterKey, const char *cipherText) {
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// Base64-decode
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// Base64-decode
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size_t bufSize = mpw_base64_decode_max( cipherText );
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uint8_t *cipherBuf = calloc( 1, mpw_base64_decode_max( cipherText ) );
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uint8_t *cipherBuf = calloc( 1, bufSize );
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size_t bufSize = (size_t)mpw_base64_decode( cipherBuf, cipherText );
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if ((bufSize = (size_t)mpw_base64_decode( cipherBuf, bufSize, cipherText )) < 0) {
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if ((int)bufSize < 0) {
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err( "Base64 decoding error." );
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err( "Base64 decoding error." );
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mpw_free( cipherBuf, mpw_base64_decode_max( cipherText ) );
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mpw_free( cipherBuf, mpw_base64_decode_max( cipherText ) );
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return NULL;
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return NULL;
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}
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}
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trc( "b64 decoded: %lu bytes = %s\n", bufSize, mpw_hex( cipherBuf, bufSize ) );
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trc( "b64 decoded: %zu bytes = %s\n", bufSize, mpw_hex( cipherBuf, bufSize ) );
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// Decrypt
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// Decrypt
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const uint8_t *plainBytes = mpw_aes_decrypt( masterKey, MPMasterKeySize, cipherBuf, bufSize );
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const uint8_t *plainBytes = mpw_aes_decrypt( masterKey, MPMasterKeySize, cipherBuf, bufSize );
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@ -91,7 +91,7 @@ bool mpw_push_int(uint8_t **const buffer, size_t *const bufferSize, const uint32
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return mpw_push_buf( buffer, bufferSize, &pushInt, sizeof( pushInt ) );
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return mpw_push_buf( buffer, bufferSize, &pushInt, sizeof( pushInt ) );
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}
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}
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bool mpw_realloc(void **buffer, size_t *bufferSize, const size_t deltaSize) {
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bool __mpw_realloc(void **buffer, size_t *bufferSize, const size_t deltaSize) {
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if (!buffer)
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if (!buffer)
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return false;
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return false;
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@ -188,6 +188,10 @@ static uint8_t const *mpw_aes(bool encrypt, const uint8_t *key, const size_t key
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uint8_t nonce[crypto_stream_NONCEBYTES];
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uint8_t nonce[crypto_stream_NONCEBYTES];
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bzero( (void *)nonce, sizeof( nonce ) );
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bzero( (void *)nonce, sizeof( nonce ) );
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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if (encrypt) {
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if (encrypt) {
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uint8_t *const cipherBuf = malloc( bufSize );
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uint8_t *const cipherBuf = malloc( bufSize );
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if (crypto_stream_aes128ctr_xor( cipherBuf, buf, bufSize, nonce, key ) != 0) {
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if (crypto_stream_aes128ctr_xor( cipherBuf, buf, bufSize, nonce, key ) != 0) {
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@ -195,7 +199,8 @@ static uint8_t const *mpw_aes(bool encrypt, const uint8_t *key, const size_t key
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return NULL;
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return NULL;
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}
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}
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return cipherBuf;
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return cipherBuf;
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} else {
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}
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else {
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uint8_t *const plainBuf = malloc( bufSize );
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uint8_t *const plainBuf = malloc( bufSize );
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if (crypto_stream_aes128ctr( plainBuf, bufSize, nonce, key ) != 0) {
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if (crypto_stream_aes128ctr( plainBuf, bufSize, nonce, key ) != 0) {
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mpw_free( plainBuf, bufSize );
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mpw_free( plainBuf, bufSize );
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@ -205,6 +210,8 @@ static uint8_t const *mpw_aes(bool encrypt, const uint8_t *key, const size_t key
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plainBuf[c] = buf[c] ^ plainBuf[c];
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plainBuf[c] = buf[c] ^ plainBuf[c];
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return plainBuf;
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return plainBuf;
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}
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}
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#pragma clang diagnostic pop
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#pragma GCC diagnostic pop
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#else
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#else
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#error No crypto support for mpw_aes.
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#error No crypto support for mpw_aes.
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#endif
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#endif
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@ -274,8 +281,8 @@ const char *mpw_hex(const void *buf, size_t length) {
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mpw_hex_buf_i = (mpw_hex_buf_i + 1) % 10;
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mpw_hex_buf_i = (mpw_hex_buf_i + 1) % 10;
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if (mpw_realloc( &mpw_hex_buf[mpw_hex_buf_i], NULL, length * 2 + 1 ))
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if (mpw_realloc( &mpw_hex_buf[mpw_hex_buf_i], NULL, length * 2 + 1 ))
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for (size_t kH = 0; kH < length; kH++)
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for (size_t kH = 0; kH < length; kH++)
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sprintf( &(mpw_hex_buf[mpw_hex_buf_i][kH * 2]), "%02X", ((const uint8_t *)buf)[kH] );
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sprintf( &(mpw_hex_buf[mpw_hex_buf_i][kH * 2]), "%02X", ((const uint8_t *)buf)[kH] );
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return mpw_hex_buf[mpw_hex_buf_i];
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return mpw_hex_buf[mpw_hex_buf_i];
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}
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}
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@ -121,8 +121,9 @@ bool mpw_push_int(
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* @param deltaSize The amount to increase the buffer's size by.
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* @param deltaSize The amount to increase the buffer's size by.
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* @return true if successful, false if reallocation failed.
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* @return true if successful, false if reallocation failed.
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*/
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*/
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bool mpw_realloc(
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#define mpw_realloc(buffer, bufferSize, deltaSize) \
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void **buffer, size_t *bufferSize, const size_t deltaSize);
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__mpw_realloc( (void **)buffer, bufferSize, deltaSize )
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bool __mpw_realloc(void **buffer, size_t *bufferSize, const size_t deltaSize);
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/** Free a buffer after zero'ing its contents. */
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/** Free a buffer after zero'ing its contents. */
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bool mpw_free(
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bool mpw_free(
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const void *buffer, const size_t bufferSize);
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const void *buffer, const size_t bufferSize);
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