diff options
Diffstat (limited to 'src/utils/base64.cpp')
| -rw-r--r-- | src/utils/base64.cpp | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/src/utils/base64.cpp b/src/utils/base64.cpp index 298841be..57a9fc84 100644 --- a/src/utils/base64.cpp +++ b/src/utils/base64.cpp @@ -42,12 +42,14 @@ static char base64_table[] = }; static char base64_pad = '='; -unsigned char *php3_base64_encode(const unsigned char *string, int length, int *ret_length) { +unsigned char *php3_base64_encode(const unsigned char *string, int length, int *ret_length) +{ const unsigned char *current = string; int i = 0; unsigned char *result = (unsigned char *)malloc(((length + 3 - length % 3) * 4 / 3 + 1) * sizeof(char)); - while (length > 2) { /* keep going until we have less than 24 bits */ + while (length > 2) + { /* keep going until we have less than 24 bits */ result[i++] = base64_table[current[0] >> 2]; result[i++] = base64_table[((current[0] & 0x03) << 4) + (current[1] >> 4)]; result[i++] = base64_table[((current[1] & 0x0f) << 2) + (current[2] >> 6)]; @@ -58,20 +60,24 @@ unsigned char *php3_base64_encode(const unsigned char *string, int length, int * } /* now deal with the tail end of things */ - if (length != 0) { + if (length != 0) + { result[i++] = base64_table[current[0] >> 2]; - if (length > 1) { + if (length > 1) + { result[i++] = base64_table[((current[0] & 0x03) << 4) + (current[1] >> 4)]; result[i++] = base64_table[(current[1] & 0x0f) << 2]; result[i++] = base64_pad; } - else { + else + { result[i++] = base64_table[(current[0] & 0x03) << 4]; result[i++] = base64_pad; result[i++] = base64_pad; } } - if(ret_length) { + if (ret_length) + { *ret_length = i; } result[i] = '\0'; @@ -79,19 +85,22 @@ unsigned char *php3_base64_encode(const unsigned char *string, int length, int * } /* as above, but backwards. :) */ -unsigned char *php3_base64_decode(const unsigned char *string, int length, int *ret_length) { +unsigned char *php3_base64_decode(const unsigned char *string, int length, int *ret_length) +{ const unsigned char *current = string; int ch, i = 0, j = 0, k; char *chp; unsigned char *result = (unsigned char *)malloc(length + 1); - if (result == NULL) { + if (result == NULL) + { return NULL; } /* run through the whole string, converting as we go */ - while ((ch = *current++) != '\0') { + while ((ch = *current++) != '\0') + { if (ch == base64_pad) break; /* When Base64 gets POSTed, all pluses are interpreted as spaces. @@ -107,7 +116,8 @@ unsigned char *php3_base64_decode(const unsigned char *string, int length, int * if (chp == NULL) continue; ch = chp - base64_table; - switch(i % 4) { + switch(i % 4) + { case 0: result[j] = ch << 2; break; @@ -128,8 +138,10 @@ unsigned char *php3_base64_decode(const unsigned char *string, int length, int * k = j; /* mop things up if we ended on a boundary */ - if (ch == base64_pad) { - switch(i % 4) { + if (ch == base64_pad) + { + switch(i % 4) + { case 0: case 1: free(result); @@ -140,7 +152,8 @@ unsigned char *php3_base64_decode(const unsigned char *string, int length, int * result[k++] = 0; } } - if(ret_length) { + if (ret_length) + { *ret_length = j; } result[k] = '\0'; |