libelwix/src/str.c - diff

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Diff for /libelwix/src/str.c between versions 1.7 and 1.11

-version 1.7, 2016/05/18 12:47:42
+version 1.11, 2024/10/28 09:58:51
  Line 12  terms:
  All of the documentation and software included in the ELWIX and AITNET
  Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
-Copyright 2004 - 2015
+Copyright 2004 - 2024
          by Michael Pounov <misho@elwix.org>.  All rights reserved.
  Redistribution and use in source and binary forms, with or without
  Line 286  str_Dig2Hex(ait_val_t *digz)
          for (i = 0, b = AIT_GET_BUF(digz); i < AIT_LEN(digz); i++) {
                  snprintf(szWork, sizeof szWork, "%02hhX", b[i]);
-                strncat(str, szWork, 2);
+                strcat(str, szWork);
          }
          return str;
  }
  /*
+  * str_Dig2Hex2() - Convert from digit array to Hex string
+  *
+  * @digz = Digits array
+  * @diglen = Array length
+  * return: NULL nothing to do or error;
+  *              !=0 Allocated new converted string (must be e_free())
+ */
+ char *
+ str_Dig2Hex2(u_char * __restrict digz, int diglen)
+ {
+         register int i;
+         char szWork[3] = { 0, 0, 0 }, *str;
+         u_char *b;
+         if (!digz || !diglen)
+                 return NULL;
+         str = e_malloc(diglen * 2 + 1);
+         if (!str)
+                 return NULL;
+         else
+                 memset(str, 0, diglen * 2 + 1);
+         for (i = 0, b = digz; i < diglen; i++) {
+                 snprintf(szWork, sizeof szWork, "%02hhX", b[i]);
+                 strcat(str, szWork);
+         }
+         return str;
+ }
+ /*
   * str_LTrim() - Remove left whitespaces from text string
   *
   * @psLine = Text string
- Line 432  str_Lower(char * __restrict psLine)
+ Line 464  str_Lower(char * __restrict psLine)
  }
  /*
- * str_getString() - Get string from data buffer
+ * str_getString() - Get NULL delimited string from data buffer
   *
- * @data = Data buffer
+ * @data = Const data buffer
   * @dlen = Data length
   * @next = Return next position after string if !=NULL
   * return: -1 error or size of string
- Line 458  str_getString(const u_char * __restrict data, int dlen
+ Line 490  str_getString(const u_char * __restrict data, int dlen
          if (next)
                  *next = (char*) pos + 1;
          return pos - data + 1;
+ }
+ /*
+  * str_getString2() - Get string from data buffer with delimiter
+  *
+  * @data = Data buffer
+  * @dlen = Data length
+  * @delim = Data delimiter
+  * @next = Return next position after delimited string if !=NULL
+  * return: -1 error or size of string
+  */
+ int
+ str_getString2(char * __restrict data, int dlen, char delim, char ** __restrict next)
+ {
+         char *pos;
+         if (!data || !dlen)
+                 return -1;
+         for (pos = data; pos < data + dlen; pos++)
+                 if (!*pos || *pos == (u_char) delim) {
+                         *pos = 0;
+                         break;
+                 }
+         if (*pos) {
+                 elwix_SetErr(ENOEXEC, "Not found null-terminated string");
+                 return -1;
+         }
+         if (next)
+                 *next = (char*) pos + 1;
+         return pos - data;
+ }
+ /*
+  * str_find2replace() - Search find string into data and replace
+  *
+  * @data = input string
+  * @find = search for string
+  * @replace = replace to string. If it is NULL then deletes found search string
+  * @str = new produced allocate string. If it is NULL then just return found occurances of find
+  * @mlen = allocated memory size for new string
+  * return: -1 error, 0 not found or >0 how many occurances we have for find string
+  */
+ int
+ str_find2replace(const char *data, const char *find, const char *replace, char **str, int *mlen)
+ {
+         int cnt = 0, data_len, slen, find_len, replace_len = 0;
+         const char *pos, *s;
+         if (!data || !find)
+                 return -1;
+         find_len = strlen(find);
+         data_len = strlen(data);
+         for (pos = data; (pos = strstr(pos, find)); pos += find_len, cnt++);
+         /* just count occurances */
+         if (!str || !mlen)
+                 return cnt;
+         slen = data_len - find_len * cnt;
+         if (replace) {
+                 replace_len = strlen(replace);
+                 slen += replace_len * cnt;
+         }
+         /* alloc exports string */
+         *mlen = slen + 1;
+         *str = e_malloc(*mlen);
+         if (!*str)
+                 return -1;
+         else
+                 memset(*str, 0, *mlen);
+         /* search & replace */
+         for (pos = data; *pos;) {
+                 s = strstr(pos, find);
+                 if (s)
+                         slen = s - pos;
+                 else
+                         slen = strlen(pos);
+                 /*
+                  * This hack was made due to behaviour of compiler against strncat(*str, pos, slen)!
+                  */
+                 memcpy(*str + strlen(*str), pos, slen);
+                 if (s) {
+                         if (replace)
+                                 strncat(*str, replace, replace_len);
+                         pos += find_len;
+                 }
+                 pos += slen;
+         }
+         return cnt;
  }

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