include/ircd_string.h

   1 /** @file ircd_string.h
   2  * @brief Public declarations and APIs for string operations.
   3  * @version $Id: ircd_string.h,v 1.11 2005/09/12 03:40:17 entrope Exp $
   4  */
   5 #ifndef INCLUDED_ircd_string_h
   6 #define INCLUDED_ircd_string_h
   7
   8 #include <string.h> /* for DupString()'s strcpy, strlen */
   9
  10 #ifndef INCLUDED_ircd_chattr_h
  11 #include "ircd_chattr.h"
  12 #endif
  13
  14 struct irc_in_addr;
  15
  16 /*
  17  * Macros
  18  */
  19 /** Check whether \a x is a NULL or empty string. */
  20 #define EmptyString(x) (!(x) || !(*x))
  21
  22 extern int string_has_wildcards(const char* str);
  23
  24 extern char*       ircd_strncpy(char* dest, const char* src, size_t len);
  25 extern int         ircd_strcmp(const char *a, const char *b);
  26 extern int         ircd_strncmp(const char *a, const char *b, size_t n);
  27 extern int         unique_name_vector(char* names, char token,
  28                                       char** vector, int size);
  29 extern int         token_vector(char* names, char token,
  30                                 char** vector, int size);
  31 extern const char* ircd_ntoa(const struct irc_in_addr* addr);
  32 extern const char* ircd_ntoa_r(char* buf, const struct irc_in_addr* addr);
  33 #define ircd_aton(ADDR, STR) ipmask_parse((STR), (ADDR), NULL)
  34 extern int ipmask_parse(const char *in, struct irc_in_addr *mask, unsigned char *bits_ptr);
  35 extern char*       host_from_uh(char* buf, const char* userhost, size_t len);
  36 extern char*       ircd_strtok(char** save, char* str, char* fs);
  37
  38 extern char*       canonize(char* buf);
  39
  40 /** Make \a y a duplicate \a x, a la strdup(). */
  41 #define DupString(x, y)  (strcpy((x = (char*) MyMalloc(strlen(y) + 1)), y))
  42
  43
  44 /* String classification pseudo-functions, when others are needed add them,
  45    strIsXxxxx(s) is true when IsXxxxx(c) is true for every char in s */
  46
  47 /** Test whether all characters in \a s are alphanumeric. */
  48 #define strIsAlnum(s)     (strChattr(s) & NTL_ALNUM)
  49 /** Test whether all characters in \a s are alphabetic. */
  50 #define strIsAlpha(s)     (strChattr(s) & NTL_ALPHA)
  51 /** Test whether all characters in \a s are digits. */
  52 #define strIsDigit(s)     (strChattr(s) & NTL_DIGIT)
  53 /** Test whether all characters in \a s are lower case. */
  54 #define strIsLower(s)     (strChattr(s) & NTL_LOWER)
  55 /** Test whether all characters in \a s are whitespace. */
  56 #define strIsSpace(s)     (strChattr(s) & NTL_SPACE)
  57 /** Test whether all characters in \a s are upper case. */
  58 #define strIsUpper(s)     (strChattr(s) & NTL_UPPER)
  59
  60 /** Test whether all characters in \a s are channel name characters. */
  61 #define strIsIrcCh(s)     (strChattr(s) & NTL_IRCCH)
  62 /** Test whether all characters in \a s are forced to lower-case in channel names. */
  63 #define strIsIrcCl(s)     (strChattr(s) & NTL_IRCCL)
  64 /** Test whether all characters in \a s are valid in nicknames. */
  65 #define strIsIrcNk(s)     (strChattr(s) & NTL_IRCNK)
  66 /** Test whether all characters in \a s are valid in a user field. */
  67 #define strIsIrcUi(s)     (strChattr(s) & NTL_IRCUI)
  68 /** Test whether all characters in \a s are valid in host names. */
  69 #define strIsIrcHn(s)     (strChattr(s) & NTL_IRCHN)
  70 /** Test whether all characters in \a s are valid in IP addresses. */
  71 #define strIsIrcIp(s)     (strChattr(s) & NTL_IRCIP)
  72
  73 /*
  74  * Critical small functions to inline even in separate compilation
  75  * when FORCEINLINE is defined (provided you have a compiler that supports
  76  * `inline').
  77  */
  78
  79 /** Declaration for strChattr(). */
  80 #define NTL_HDR_strChattr   unsigned int strChattr(const char *s)
  81
  82 /** Body for strChattr(). */
  83 #define NTL_SRC_strChattr   const char *rs = s; \
  84                             unsigned int x = ~0; \
  85                             while(*rs) \
  86                               x &= IRCD_CharAttrTab[*rs++ - CHAR_MIN]; \
  87                             return x;
  88
  89 /*
  90  * XXX - bleah should return 1 if different 0 if the same
  91  */
  92 /** Declaration for strCasediff(). */
  93 #define NTL_HDR_strCasediff int strCasediff(const char *a, const char *b)
  94
  95 /** Body for strCasediff(). */
  96 #define NTL_SRC_strCasediff const char *ra = a; \
  97                             const char *rb = b; \
  98                             while(ToLower(*ra) == ToLower(*rb++)) \
  99                               if(!*ra++) \
 100                                 return 0; \
 101                             return 1;
 102
 103 #ifndef FORCEINLINE
 104 extern NTL_HDR_strChattr;
 105 extern NTL_HDR_strCasediff;
 106
 107 #else /* FORCEINLINE */
 108 #ifdef __cplusplus
 109 inline NTL_HDR_strChattr { NTL_SRC_strChattr }
 110 inline NTL_HDR_strCasediff { NTL_SRC_strCasediff }
 111 #else
 112 static __inline__ NTL_HDR_strChattr { NTL_SRC_strChattr }
 113 static __inline__ NTL_HDR_strCasediff { NTL_SRC_strCasediff }
 114 #endif
 115 #endif /* FORCEINLINE */
 116
 117 #endif /* INCLUDED_ircd_string_h */
 118