GNUnet  0.10.x
Data Structures | Macros | Functions | Variables
strings.c File Reference

string functions More...

#include "platform.h"
#include "gnunet_crypto_lib.h"
#include "gnunet_strings_lib.h"
#include <unicase.h>
#include <unistr.h>
#include <uniconv.h>
Include dependency graph for strings.c:

Go to the source code of this file.

Data Structures

struct  ConversionTable
 Unit conversion table entry for 'convert_with_table'. More...
 

Macros

#define LOG(kind, ...)   GNUNET_log_from(kind, "util-strings", __VA_ARGS__)
 
#define LOG_STRERROR(kind, syscall)   GNUNET_log_from_strerror(kind, "util-strings", syscall)
 
#define FILLCHAR   '='
 ******************** Base64 encoding More...
 
#define cvtfind(a)
 
#define CHECK_CRLF
 

Functions

size_t GNUNET_STRINGS_buffer_fill (char *buffer, size_t size, unsigned int count,...)
 Fill a buffer of the given size with count 0-terminated strings (given as varargs). More...
 
char * GNUNET_STRINGS_pp2s (const struct GNUNET_PeerIdentity *pids, unsigned int num_pids)
 Convert a peer path to a human-readable string. More...
 
unsigned int GNUNET_STRINGS_buffer_tokenize (const char *buffer, size_t size, unsigned int count,...)
 Given a buffer of a given size, find "count" 0-terminated strings in the buffer and assign the count (varargs) of type "const char**" to the locations of the respective strings in the buffer. More...
 
char * GNUNET_STRINGS_byte_size_fancy (unsigned long long size)
 Convert a given filesize into a fancy human-readable format. More...
 
size_t GNUNET_strlcpy (char *dst, const char *src, size_t n)
 Like strlcpy but portable. More...
 
static int convert_with_table (const char *input, const struct ConversionTable *table, unsigned long long *output)
 Convert a string of the form "4 X 5 Y" into a numeric value by interpreting "X" and "Y" as units and then multiplying the numbers with the values associated with the respective unit from the conversion table. More...
 
int GNUNET_STRINGS_fancy_size_to_bytes (const char *fancy_size, unsigned long long *size)
 Convert a given fancy human-readable size to bytes. More...
 
int GNUNET_STRINGS_fancy_time_to_relative (const char *fancy_time, struct GNUNET_TIME_Relative *rtime)
 Convert a given fancy human-readable time to our internal representation. More...
 
int GNUNET_STRINGS_fancy_time_to_absolute (const char *fancy_time, struct GNUNET_TIME_Absolute *atime)
 Convert a given fancy human-readable time to our internal representation. More...
 
char * GNUNET_STRINGS_conv (const char *input, size_t len, const char *input_charset, const char *output_charset)
 Convert the len characters long character sequence given in input that is in the given input charset to a string in given output charset. More...
 
char * GNUNET_STRINGS_to_utf8 (const char *input, size_t len, const char *charset)
 Convert the len characters long character sequence given in input that is in the given charset to UTF-8. More...
 
char * GNUNET_STRINGS_from_utf8 (const char *input, size_t len, const char *charset)
 Convert the len bytes-long UTF-8 string given in input to the given charset. More...
 
void GNUNET_STRINGS_utf8_tolower (const char *input, char *output)
 Convert the utf-8 input string to lowercase. More...
 
void GNUNET_STRINGS_utf8_toupper (const char *input, char *output)
 Convert the utf-8 input string to uppercase. More...
 
char * GNUNET_STRINGS_filename_expand (const char *fil)
 Complete filename (a la shell) from abbrevition. More...
 
const char * GNUNET_STRINGS_relative_time_to_string (struct GNUNET_TIME_Relative delta, int do_round)
 Give relative time in human-readable fancy format. More...
 
const char * GNUNET_STRINGS_absolute_time_to_string (struct GNUNET_TIME_Absolute t)
 "asctime", except for GNUnet time. More...
 
const char * GNUNET_STRINGS_get_short_name (const char *filename)
 "man basename" Returns a pointer to a part of filename (allocates nothing)! More...
 
static unsigned int getValue__ (unsigned char a)
 Get the decoded value corresponding to a character according to Crockford Base32 encoding. More...
 
char * GNUNET_STRINGS_data_to_string (const void *data, size_t size, char *out, size_t out_size)
 Convert binary data to ASCII encoding using Crockford Base32 encoding. More...
 
char * GNUNET_STRINGS_data_to_string_alloc (const void *buf, size_t size)
 Return the base32crockford encoding of the given buffer. More...
 
int GNUNET_STRINGS_string_to_data (const char *enc, size_t enclen, void *out, size_t out_size)
 Convert Crockford Base32hex encoding back to data. More...
 
int GNUNET_STRINGS_parse_uri (const char *path, char **scheme_part, const char **path_part)
 Parse a path that might be an URI. More...
 
int GNUNET_STRINGS_path_is_absolute (const char *filename, int can_be_uri, int *r_is_uri, char **r_uri_scheme)
 Check whether filename is absolute or not, and if it's an URI. More...
 
int GNUNET_STRINGS_check_filename (const char *filename, enum GNUNET_STRINGS_FilenameCheck checks)
 Perform checks on filename. More...
 
int GNUNET_STRINGS_to_address_ipv6 (const char *zt_addr, uint16_t addrlen, struct sockaddr_in6 *r_buf)
 Tries to convert zt_addr string to an IPv6 address. More...
 
int GNUNET_STRINGS_to_address_ipv4 (const char *zt_addr, uint16_t addrlen, struct sockaddr_in *r_buf)
 Tries to convert 'zt_addr' string to an IPv4 address. More...
 
int GNUNET_STRINGS_to_address_ip (const char *addr, uint16_t addrlen, struct sockaddr_storage *r_buf)
 Tries to convert addr string to an IP (v4 or v6) address. More...
 
size_t GNUNET_STRINGS_parse_socket_addr (const char *addr, uint8_t *af, struct sockaddr **sa)
 Parse an address given as a string into a struct sockaddr. More...
 
static char *const * _make_continuous_arg_copy (int argc, char *const *argv)
 Makes a copy of argv that consists of a single memory chunk that can be freed with a single call to GNUNET_free();. More...
 
int GNUNET_STRINGS_get_utf8_args (int argc, char *const *argv, int *u8argc, char *const **u8argv)
 Returns utf-8 encoded arguments. More...
 
static int parse_port_policy (const char *port_policy, struct GNUNET_STRINGS_PortPolicy *pp)
 Parse the given port policy. More...
 
struct GNUNET_STRINGS_IPv4NetworkPolicyGNUNET_STRINGS_parse_ipv4_policy (const char *routeListX)
 Parse an IPv4 network policy. More...
 
struct GNUNET_STRINGS_IPv6NetworkPolicyGNUNET_STRINGS_parse_ipv6_policy (const char *routeListX)
 Parse an IPv6 network policy. More...
 
size_t GNUNET_STRINGS_base64_encode (const void *in, size_t len, char **output)
 Encode into Base64. More...
 
size_t GNUNET_STRINGS_base64_decode (const char *data, size_t len, void **out)
 Decode from Base64. More...
 

Variables

static char * cvt
 

Detailed Description

string functions

Author
Nils Durner
Christian Grothoff

Definition in file strings.c.

Macro Definition Documentation

◆ LOG

#define LOG (   kind,
  ... 
)    GNUNET_log_from(kind, "util-strings", __VA_ARGS__)

◆ LOG_STRERROR

#define LOG_STRERROR (   kind,
  syscall 
)    GNUNET_log_from_strerror(kind, "util-strings", syscall)

◆ FILLCHAR

#define FILLCHAR   '='

******************** Base64 encoding

Definition at line 1840 of file strings.c.

Referenced by GNUNET_STRINGS_base64_decode(), and GNUNET_STRINGS_base64_encode().

◆ cvtfind

#define cvtfind (   a)
Value:
((((a) >= 'A') && ((a) <= 'Z')) \
? (a) - 'A' \
: (((a) >= 'a') && ((a) <= 'z')) \
? (a) - 'a' + 26 \
: (((a) >= '0') && ((a) <= '9')) \
? (a) - '0' + 52 \
: ((a) == '+') ? 62 : ((a) == '/') ? 63 : -1)

Definition at line 1900 of file strings.c.

Referenced by GNUNET_STRINGS_base64_decode().

◆ CHECK_CRLF

#define CHECK_CRLF
Value:
while (data[i] == '\r' || data[i] == '\n') \
{ \
"ignoring CR/LF\n"); \
i++; \
if (i >= len) \
goto END; \
}
We&#39;re done processing.
uint32_t data
The data value.
uint16_t len
length of data (which is always a uint32_t, but presumably this can be used to specify that fewer byt...

Referenced by GNUNET_STRINGS_base64_decode().

Function Documentation

◆ convert_with_table()

static int convert_with_table ( const char *  input,
const struct ConversionTable table,
unsigned long long *  output 
)
static

Convert a string of the form "4 X 5 Y" into a numeric value by interpreting "X" and "Y" as units and then multiplying the numbers with the values associated with the respective unit from the conversion table.

Parameters
inputinput string to parse
tabletable with the conversion of unit names to numbers
outputwhere to store the result
Returns
GNUNET_OK on success, GNUNET_SYSERR on error

Definition at line 259 of file strings.c.

References GNUNET_free, GNUNET_OK, GNUNET_strdup, GNUNET_SYSERR, GNUNET_YES, ConversionTable::name, ret, and ConversionTable::value.

Referenced by GNUNET_STRINGS_fancy_size_to_bytes(), and GNUNET_STRINGS_fancy_time_to_relative().

262 {
263  unsigned long long ret;
264  char *in;
265  const char *tok;
266  unsigned long long last;
267  unsigned int i;
268 
269  ret = 0;
270  last = 0;
271  in = GNUNET_strdup(input);
272  for (tok = strtok(in, " "); tok != NULL; tok = strtok(NULL, " "))
273  {
274  do
275  {
276  i = 0;
277  while ((table[i].name != NULL) && (0 != strcasecmp(table[i].name, tok)))
278  i++;
279  if (table[i].name != NULL)
280  {
281  last *= table[i].value;
282  break; /* next tok */
283  }
284  else
285  {
286  char *endptr;
287  ret += last;
288  errno = 0;
289  last = strtoull(tok, &endptr, 10);
290  if ((0 != errno) || (endptr == tok))
291  {
292  GNUNET_free(in);
293  return GNUNET_SYSERR; /* expected number */
294  }
295  if ('\0' == endptr[0])
296  break; /* next tok */
297  else
298  tok = endptr; /* and re-check (handles times like "10s") */
299  }
300  }
301  while (GNUNET_YES);
302  }
303  ret += last;
304  *output = ret;
305  GNUNET_free(in);
306  return GNUNET_OK;
307 }
unsigned long long value
Factor to apply for this unit.
Definition: strings.c:243
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
static int ret
Final status code.
Definition: gnunet-arm.c:89
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
#define GNUNET_SYSERR
Definition: gnunet_common.h:76
const char * name
#define GNUNET_YES
Definition: gnunet_common.h:77
#define GNUNET_free(ptr)
Wrapper around free.
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◆ getValue__()

static unsigned int getValue__ ( unsigned char  a)
static

Get the decoded value corresponding to a character according to Crockford Base32 encoding.

Parameters
aa character
Returns
corresponding numeric value

Definition at line 795 of file strings.c.

References dec.

Referenced by GNUNET_STRINGS_string_to_data().

796 {
797  unsigned int dec;
798 
799  switch (a)
800  {
801  case 'O':
802  case 'o':
803  a = '0';
804  break;
805 
806  case 'i':
807  case 'I':
808  case 'l':
809  case 'L':
810  a = '1';
811  break;
812 
813  /* also consider U to be V */
814  case 'u':
815  case 'U':
816  a = 'V';
817  break;
818 
819  default:
820  break;
821  }
822  if ((a >= '0') && (a <= '9'))
823  return a - '0';
824  if ((a >= 'a') && (a <= 'z'))
825  a = toupper(a);
826  /* return (a - 'a' + 10); */
827  dec = 0;
828  if ((a >= 'A') && (a <= 'Z'))
829  {
830  if ('I' < a)
831  dec++;
832  if ('L' < a)
833  dec++;
834  if ('O' < a)
835  dec++;
836  if ('U' < a)
837  dec++;
838  return(a - 'A' + 10 - dec);
839  }
840  return -1;
841 }
static OpusDecoder * dec
OPUS decoder.
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◆ _make_continuous_arg_copy()

static char* const* _make_continuous_arg_copy ( int  argc,
char *const *  argv 
)
static

Makes a copy of argv that consists of a single memory chunk that can be freed with a single call to GNUNET_free();.

Definition at line 1402 of file strings.c.

References GNUNET_malloc, and p.

Referenced by GNUNET_STRINGS_get_utf8_args().

1403 {
1404  size_t argvsize = 0;
1405  int i;
1406  char **new_argv;
1407  char *p;
1408 
1409  for (i = 0; i < argc; i++)
1410  argvsize += strlen(argv[i]) + 1 + sizeof(char *);
1411  new_argv = GNUNET_malloc(argvsize + sizeof(char *));
1412  p = (char *)&new_argv[argc + 1];
1413  for (i = 0; i < argc; i++)
1414  {
1415  new_argv[i] = p;
1416  strcpy(p, argv[i]);
1417  p += strlen(argv[i]) + 1;
1418  }
1419  new_argv[argc] = NULL;
1420  return (char *const *)new_argv;
1421 }
static struct GNUNET_OS_Process * p
Helper process we started.
Definition: gnunet-qr.c:59
#define GNUNET_malloc(size)
Wrapper around malloc.
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◆ parse_port_policy()

static int parse_port_policy ( const char *  port_policy,
struct GNUNET_STRINGS_PortPolicy pp 
)
static

Parse the given port policy.

The format is "[!]SPORT[-DPORT]".

Parameters
port_policystring to parse
pppolicy to fill in
Returns
GNUNET_OK on success, GNUNET_SYSERR if the port_policy is malformed

Definition at line 1462 of file strings.c.

References _, e, GNUNET_STRINGS_PortPolicy::end_port, GNUNET_ERROR_TYPE_WARNING, GNUNET_log, GNUNET_OK, GNUNET_SYSERR, GNUNET_YES, GNUNET_STRINGS_PortPolicy::negate_portrange, and GNUNET_STRINGS_PortPolicy::start_port.

Referenced by GNUNET_STRINGS_parse_ipv4_policy(), and GNUNET_STRINGS_parse_ipv6_policy().

1464 {
1465  const char *pos;
1466  int s;
1467  int e;
1468  char eol[2];
1469 
1470  pos = port_policy;
1471  if ('!' == *pos)
1472  {
1474  pos++;
1475  }
1476  if (2 == sscanf(pos, "%u-%u%1s", &s, &e, eol))
1477  {
1478  if ((0 == s) || (s > 0xFFFF) || (e < s) || (e > 0xFFFF))
1479  {
1480  GNUNET_log(GNUNET_ERROR_TYPE_WARNING, _("Port not in range\n"));
1481  return GNUNET_SYSERR;
1482  }
1483  pp->start_port = (uint16_t)s;
1484  pp->end_port = (uint16_t)e;
1485  return GNUNET_OK;
1486  }
1487  if (1 == sscanf(pos, "%u%1s", &s, eol))
1488  {
1489  if ((0 == s) || (s > 0xFFFF))
1490  {
1491  GNUNET_log(GNUNET_ERROR_TYPE_WARNING, _("Port not in range\n"));
1492  return GNUNET_SYSERR;
1493  }
1494 
1495  pp->start_port = (uint16_t)s;
1496  pp->end_port = (uint16_t)s;
1497  return GNUNET_OK;
1498  }
1500  _("Malformed port policy `%s'\n"),
1501  port_policy);
1502  return GNUNET_SYSERR;
1503 }
uint16_t start_port
Starting port range (0 if none given).
int negate_portrange
GNUNET_YES if the port range should be negated ("!" in policy).
static struct Experiment * e
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
#define _(String)
GNU gettext support macro.
Definition: platform.h:181
#define GNUNET_SYSERR
Definition: gnunet_common.h:76
uint16_t end_port
End of port range (0 if none given).
#define GNUNET_log(kind,...)
#define GNUNET_YES
Definition: gnunet_common.h:77
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Variable Documentation

◆ cvt

char* cvt
static
Initial value:
= "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789+/"

Definition at line 1841 of file strings.c.

Referenced by GNUNET_STRINGS_base64_encode().