* A basic toolset containing miscellaneous functions for string manipluation,
* encoding/decoding, and a bunch of other stuff.
*
- * Copyright (c) 1987-2011 by the citadel.org team
+ * Copyright (c) 1987-2017 by the citadel.org team
*
* This program is open source software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <sys/stat.h>
#include <errno.h>
#include <limits.h>
+#include "b64/cencode.h"
+#include "b64/cdecode.h"
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
typedef unsigned char byte; /* Byte type */
-/* Base64 encoding table */
-const byte etable[256] = {
- 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81,
- 82, 83, 84, 85, 86, 87, 88, 89, 90, 97, 98, 99, 100, 101, 102, 103,
- 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117,
- 118, 119, 120, 121, 122, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 43,
- 47, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-/* Base64 decoding table */
-const byte dtable[256] = {
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 62, 128, 128, 128, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
- 128, 128, 128, 0, 128, 128, 128, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
- 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 128, 128, 128,
- 128, 128, 128, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
- 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 0
-};
-
/*
* copy a string into a buffer of a known size. abort if we exceed the limits
*
{
int i = 0;
- if (dest == NULL || src == NULL) {
+ if (dest == NULL || src == NULL)
+ {
fprintf(stderr, "safestrncpy: NULL argument\n");
abort();
}
}
-
/*
* num_tokens() - discover number of parameters/tokens in a string
*/
int count = 1;
const char *ptr = source;
- if (source == NULL) {
+ if (source == NULL)
+ {
return (0);
}
- while (*ptr != '\0') {
- if (*ptr++ == tok) {
+ while (*ptr != '\0')
+ {
+ if (*ptr++ == tok)
+ {
++count;
}
}
return (count);
}
-//extern void cit_backtrace(void);
-
/*
* extract_token() - a string tokenizer
s = source;
- if (dest == NULL) {
+ if (dest == NULL)
+ {
return(-1);
}
- //cit_backtrace();
- //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
dest[0] = 0;
- if (s == NULL) {
+ if (s == NULL)
+ {
return(-1);
}
maxlen--;
- while (*s) {
- if (*s == separator) {
+ while (*s)
+ {
+ if (*s == separator)
+ {
++current_token;
}
- if ( (current_token == parmnum) &&
- (*s != separator) &&
- (len < maxlen) ) {
+ if ( (current_token == parmnum) && (*s != separator) && (len < maxlen) )
+ {
dest[len] = *s;
++len;
}
- else if ((current_token > parmnum) || (len >= maxlen)) {
+ else if ((current_token > parmnum) || (len >= maxlen))
+ {
break;
}
++s;
}
dest[len] = '\0';
- if (current_token < parmnum) {
- //lprintf (CTDL_DEBUG,"test <!: %s\n", dest);
+ if (current_token < parmnum)
+ {
return(-1);
}
- //lprintf (CTDL_DEBUG,"test <: %d; %s\n", len, dest);
return(len);
}
-//*/
-
-
-/*
- * extract_token() - a string tokenizer
- * /
-long extract_token(char *dest, const char *source, int parmnum, char separator, int maxlen)
-{
- char *d; // dest
- const char *s; // source
- int count = 0;
- int len = 0;
-
-
- //cit_backtrace();
- //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
- strcpy(dest, "");
-
- // Locate desired parameter
- s = source;
- while (count < parmnum) {
- // End of string, bail!
- if (!*s) {
- s = NULL;
- break;
- }
- if (*s == separator) {
- count++;
- }
- s++;
- }
- if (!s) {
- //lprintf (CTDL_DEBUG,"test <!: %s\n", dest);
- return -1; // Parameter not found
- }
-
- for (d = dest; *s && *s != separator && ++len<maxlen; s++, d++) {
- *d = *s;
- }
- *d = 0;
- //lprintf (CTDL_DEBUG,"test <: %d; %s\n", len, dest);
- return 0;
-}
-*/
/*
/* Find desired parameter */
d = source;
- while (count < parmnum) {
+ while (count < parmnum)
+ {
/* End of string, bail! */
if (!*d) {
d = NULL;
break;
}
- if (*d == separator) {
+ if (*d == separator)
+ {
count++;
}
d++;
/* Find next parameter */
s = d;
- while (*s && *s != separator) {
+ while (*s && *s != separator)
+ {
s++;
}
*d = 0;
else
*--d = 0;
- /*
- while (*s) {
- *d++ = *s++;
- }
- *d = 0;
- */
}
return 0;
}
+
/*
* extract_long() - extract an long parm w/o supplying a buffer
*/
}
-/*
- * CtdlDecodeBase64() and CtdlEncodeBase64() are adaptations of code by John Walker.
- */
-
size_t CtdlEncodeBase64(char *dest, const char *source, size_t sourcelen, int linebreaks)
{
- int i, hiteof = FALSE;
- int spos = 0;
- int dpos = 0;
- int thisline = 0;
-
- while (!hiteof) {
- byte igroup[3], ogroup[4];
- int c, n;
-
- igroup[0] = igroup[1] = igroup[2] = 0;
- for (n = 0; n < 3; n++) {
- if (spos >= sourcelen) {
- hiteof = TRUE;
- break;
- }
- c = source[spos++];
- igroup[n] = (byte) c;
- }
- if (n > 0) {
- ogroup[0] = etable[igroup[0] >> 2];
- ogroup[1] =
- etable[((igroup[0] & 3) << 4) |
- (igroup[1] >> 4)];
- ogroup[2] =
- etable[((igroup[1] & 0xF) << 2) |
- (igroup[2] >> 6)];
- ogroup[3] = etable[igroup[2] & 0x3F];
-
- /*
- * Replace characters in output stream with "=" pad
- * characters if fewer than three characters were
- * read from the end of the input stream.
- */
-
- if (n < 3) {
- ogroup[3] = '=';
- if (n < 2) {
- ogroup[2] = '=';
- }
- }
- for (i = 0; i < 4; i++) {
- dest[dpos++] = ogroup[i];
- dest[dpos] = 0;
- }
- thisline += 4;
- if ( (linebreaks) && (thisline > 70) ) {
- dest[dpos++] = '\r';
- dest[dpos++] = '\n';
- dest[dpos] = 0;
- thisline = 0;
- }
+ int breaklength = 68; // must be a multiple of 4
+ int readlength = 3 * breaklength / 4;
+
+ int destoffset;
+ int sourceoffset;
+ int sourceremaining;
+
+ base64_encodestate _state;
+
+ base64_init_encodestate(&_state);
+
+ if (linebreaks) {
+ sourceremaining = sourcelen;
+ destoffset = 0;
+ sourceoffset = 0;
+
+ while (sourceremaining > 0) {
+ destoffset += base64_encode_block(
+ &(source[sourceoffset]),
+ (readlength > sourceremaining ? sourceremaining : readlength),
+ &(dest[destoffset]),
+ &_state);
+ sourceoffset += readlength;
+ sourceremaining -= readlength;
+ dest[destoffset++] = '\r';
+ dest[destoffset++] = '\n';
}
+
+ destoffset += base64_encode_blockend(&(dest[destoffset]), &_state, 0);
}
- if ( (linebreaks) && (thisline > 70) ) {
- dest[dpos++] = '\r';
- dest[dpos++] = '\n';
- dest[dpos] = 0;
- }
+ else {
+ destoffset = base64_encode_block(source, sourcelen, dest, &_state);
- return(dpos);
+ destoffset += base64_encode_blockend(&(dest[destoffset]), &_state, 0);
+ }
+ dest[destoffset] = 0;
+ return destoffset;
}
-
/*
* Convert base64-encoded to binary. Returns the length of the decoded data.
* It will stop after reading 'length' bytes.
*/
int CtdlDecodeBase64(char *dest, const char *source, size_t length)
{
- int i, c;
- int dpos = 0;
- int spos = 0;
-
- while (TRUE) {
- byte a[4], b[4], o[3];
-
- for (i = 0; i < 4; i++) {
- if (spos >= length) {
- return(dpos);
- }
- c = source[spos++];
-
- if (c == 0) {
- if (i > 0) {
- return(dpos);
- }
- return(dpos);
- }
- if (dtable[c] & 0x80) {
- /* Ignoring errors: discard invalid character. */
- i--;
- continue;
- }
- a[i] = (byte) c;
- b[i] = (byte) dtable[c];
- }
- o[0] = (b[0] << 2) | (b[1] >> 4);
- o[1] = (b[1] << 4) | (b[2] >> 2);
- o[2] = (b[2] << 6) | b[3];
- i = a[2] == '=' ? 1 : (a[3] == '=' ? 2 : 3);
- if (i>=1) dest[dpos++] = o[0];
- if (i>=2) dest[dpos++] = o[1];
- if (i>=3) dest[dpos++] = o[2];
- dest[dpos] = 0;
- if (i < 3) {
- return(dpos);
- }
- }
+ base64_decodestate _state;
+ int len;
+
+ base64_init_decodestate(&_state);
+
+ len = base64_decode_block(source, length, dest, &_state);
+ dest[len] = '\0';
+ return len;
}
}
+
/*
* Strip leading and trailing spaces from a string
*/
}
-/**
- * \brief check for the presence of a character within a string (returns count)
- * \param st the string to examine
- * \param ch the char to search
- * \return the number of times ch appears in st
+/*
+ * check for the presence of a character within a string (returns count)
+ * st the string to examine
+ * ch the char to search
+ * returns the number of times ch appears in st
*/
int haschar(const char *st, int ch)
{
}
-
-
-
-/*
- * Format a date/time stamp for output
- * seconds is whether to print the seconds
- */
-void fmt_date(char *buf, size_t n, time_t thetime, int seconds) {
- struct tm tm;
- char *teh_format = NULL;
-
- *buf = '\0';
- localtime_r(&thetime, &tm);
-
- if (seconds) {
- teh_format = "%F %R:%S";
- }
- else {
- teh_format = "%F %R";
- }
-
- strftime(buf, n, teh_format, &tm);
-}
-
-
-
/*
* Determine whether the specified message number is contained within the
* specified sequence set.
*/
-int is_msg_in_sequence_set(const char *mset, long msgnum) {
+int is_msg_in_sequence_set(const char *mset, long msgnum)
+{
int num_sets;
int s;
char setstr[128], lostr[128], histr[128];
extract_token(setstr, mset, s, ',', sizeof setstr);
extract_token(lostr, setstr, 0, ':', sizeof lostr);
- if (num_tokens(setstr, ':') >= 2) {
+ if (num_tokens(setstr, ':') >= 2)
+ {
extract_token(histr, setstr, 1, ':', sizeof histr);
- if (!strcmp(histr, "*")) {
+ if (!strcmp(histr, "*"))
+ {
snprintf(histr, sizeof histr, "%ld", LONG_MAX);
}
}
- else {
+ else
+ {
strcpy(histr, lostr);
}
lo = atol(lostr);
return(0);
}
-/**
- * \brief Utility function to "readline" from memory
- * \param start Location in memory from which we are reading.
- * \param buf the buffer to place the string in.
- * \param maxlen Size of string buffer
- * \return Pointer to the source memory right after we stopped reading.
+/*
+ * Utility function to "readline" from memory
+ * start Location in memory from which we are reading.
+ * buf the buffer to place the string in.
+ * maxlen Size of string buffer
+ * returns pointer to the source memory right after we stopped reading.
*/
char *memreadline(char *start, char *buf, int maxlen)
{
char ch;
char *ptr;
- int len = 0; /**< tally our own length to avoid strlen() delays */
+ int len = 0; /* tally our own length to avoid strlen() delays */
ptr = start;
}
-/**
- * \brief Utility function to "readline" from memory
- * \param start Location in memory from which we are reading.
- * \param buf the buffer to place the string in.
- * \param maxlen Size of string buffer
- * \param retlen the length of the returned string
- * \return Pointer to the source memory right after we stopped reading.
+/*
+ * Utility function to "readline" from memory
+ * start Location in memory from which we are reading.
+ * buf the buffer to place the string in.
+ * maxlen Size of string buffer
+ * retlen the length of the returned string
+ * returns a pointer to the source memory right after we stopped reading.
*/
char *memreadlinelen(char *start, char *buf, int maxlen, int *retlen)
{
char ch;
char *ptr;
- int len = 0; /**< tally our own length to avoid strlen() delays */
+ int len = 0; /* tally our own length to avoid strlen() delays */
ptr = start;
- while (1) {
+ while (1)
+ {
ch = *ptr++;
- if ((len + 1 < (maxlen)) && (ch != 13) && (ch != 10)) {
+ if ((len + 1 < (maxlen)) && (ch != 13) && (ch != 10))
+ {
buf[len++] = ch;
}
- if ((ch == 10) || (ch == 0)) {
+ if ((ch == 10) || (ch == 0))
+ {
buf[len] = 0;
*retlen = len;
return ptr;
projects / citadel.git / blobdiff