diff options
Diffstat (limited to 'src/common/utils.c')
| -rw-r--r-- | src/common/utils.c | 384 |
1 files changed, 384 insertions, 0 deletions
diff --git a/src/common/utils.c b/src/common/utils.c new file mode 100644 index 000000000..57dc1f480 --- /dev/null +++ b/src/common/utils.c @@ -0,0 +1,384 @@ +// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef WIN32
+ #include <windows.h>
+ #define PATHSEP '\\'
+#else
+ #include <unistd.h>
+ #include <dirent.h>
+ #include <sys/stat.h>
+ #define PATHSEP '/'
+#endif
+
+#include "utils.h"
+#include "../common/mmo.h"
+#include "../common/malloc.h"
+#include "../common/showmsg.h"
+
+void dump(unsigned char *buffer, int num)
+{
+ int icnt,jcnt;
+
+ printf(" Hex ASCII\n");
+ printf(" ----------------------------------------------- ----------------");
+
+ for (icnt=0;icnt<num;icnt+=16) {
+ printf("\n%p ",&buffer[icnt]);
+ for (jcnt=icnt;jcnt<icnt+16;++jcnt) {
+ if (jcnt < num) {
+ printf("%02hX ",buffer[jcnt]);
+ } else
+ printf(" ");
+ }
+
+ printf(" | ");
+
+ for (jcnt=icnt;jcnt<icnt+16;++jcnt) {
+ if (jcnt < num) {
+ if (buffer[jcnt] > 31 && buffer[jcnt] < 127)
+ printf("%c",buffer[jcnt]);
+ else
+ printf(".");
+ } else
+ printf(" ");
+ }
+ }
+ printf("\n");
+}
+
+//NOTE: There is no need to use this function as the standard sqrt is plenty fast as it is. [Skotlex]
+int newt_sqrt(int input)
+{
+ int new_value, value = input/2, count = 0;
+ if (!value) //Division by zero fix, pointed out by Shinomori. [Skotlex]
+ return input;
+ do
+ {
+ new_value = (value + input/value)>>1;
+ if (abs(value - new_value) <= 1)
+ return new_value;
+ value = new_value;
+ }
+ while (count++ < 25);
+ return new_value;
+}
+
+#if defined(_WIN32) && !defined(MINGW)
+char *rindex(char *str, char c)
+{
+ char *sptr;
+
+ sptr = str;
+ while(*sptr)
+ ++sptr;
+ if (c == '\0')
+ return(sptr);
+ while(str != sptr)
+ if (*sptr-- == c)
+ return(++sptr);
+ return(NULL);
+}
+
+int strcasecmp(const char *arg1, const char *arg2)
+{
+ int chk, i;
+
+ if (arg1 == NULL || arg2 == NULL) {
+ ShowError("strcasecmp: received a NULL pointer, %p or %p.\n", arg1, arg2);
+ return (0);
+ }
+
+ for (i = 0; arg1[i] || arg2[i]; i++)
+ if ((chk = LOWER(arg1[i]) - LOWER(arg2[i])) != 0)
+ return (chk); /* not equal */
+
+ return (0);
+}
+
+int strncasecmp(const char *arg1, const char *arg2, int n)
+{
+ int chk, i;
+
+ if (arg1 == NULL || arg2 == NULL) {
+ ShowError("strncasecmp(): received a NULL pointer, %p or %p.\n", arg1, arg2);
+ return (0);
+ }
+
+ for (i = 0; (arg1[i] || arg2[i]) && (n > 0); i++, n--)
+ if ((chk = LOWER(arg1[i]) - LOWER(arg2[i])) != 0)
+ return (chk); /* not equal */
+
+ return (0);
+}
+
+void str_upper(char *name)
+{
+
+ int len = (int)strlen(name);
+ while (len--) {
+ if (*name >= 'a' && *name <= 'z')
+ *name -= ('a' - 'A');
+ name++;
+ }
+}
+
+void str_lower(char *name)
+{
+ int len = (int)strlen(name);
+
+ while (len--) {
+ if (*name >= 'A' && *name <= 'Z')
+ *name += ('a' - 'A');
+ name++;
+ }
+}
+
+#endif
+
+// Allocate a StringBuf [MouseJstr]
+struct StringBuf * StringBuf_Malloc()
+{
+ struct StringBuf * ret = (struct StringBuf *) aMallocA(sizeof(struct StringBuf));
+ StringBuf_Init(ret);
+ return ret;
+}
+
+// Initialize a previously allocated StringBuf [MouseJstr]
+void StringBuf_Init(struct StringBuf * sbuf) {
+ sbuf->max_ = 1024;
+ sbuf->ptr_ = sbuf->buf_ = (char *) aMallocA(sbuf->max_ + 1);
+}
+
+// printf into a StringBuf, moving the pointer [MouseJstr]
+int StringBuf_Printf(struct StringBuf *sbuf,const char *fmt,...)
+{
+ va_list ap;
+ int n, size, off;
+
+ while (1) {
+ /* Try to print in the allocated space. */
+ va_start(ap, fmt);
+ size = sbuf->max_ - (sbuf->ptr_ - sbuf->buf_);
+ n = vsnprintf (sbuf->ptr_, size, fmt, ap);
+ va_end(ap);
+ /* If that worked, return the length. */
+ if (n > -1 && n < size) {
+ sbuf->ptr_ += n;
+ return (int)(sbuf->ptr_ - sbuf->buf_);
+ }
+ /* Else try again with more space. */
+ sbuf->max_ *= 2; // twice the old size
+ off = (int)(sbuf->ptr_ - sbuf->buf_);
+ sbuf->buf_ = (char *) aRealloc(sbuf->buf_, sbuf->max_ + 1);
+ sbuf->ptr_ = sbuf->buf_ + off;
+ }
+}
+
+// Append buf2 onto the end of buf1 [MouseJstr]
+int StringBuf_Append(struct StringBuf *buf1,const struct StringBuf *buf2)
+{
+ int buf1_avail = buf1->max_ - (buf1->ptr_ - buf1->buf_);
+ int size2 = (int)(buf2->ptr_ - buf2->buf_);
+
+ if (size2 >= buf1_avail) {
+ int off = (int)(buf1->ptr_ - buf1->buf_);
+ buf1->max_ += size2;
+ buf1->buf_ = (char *) aRealloc(buf1->buf_, buf1->max_ + 1);
+ buf1->ptr_ = buf1->buf_ + off;
+ }
+
+ memcpy(buf1->ptr_, buf2->buf_, size2);
+ buf1->ptr_ += size2;
+ return (int)(buf1->ptr_ - buf1->buf_);
+}
+
+// Destroy a StringBuf [MouseJstr]
+void StringBuf_Destroy(struct StringBuf *sbuf)
+{
+ aFree(sbuf->buf_);
+ sbuf->ptr_ = sbuf->buf_ = 0;
+}
+
+// Free a StringBuf returned by StringBuf_Malloc [MouseJstr]
+void StringBuf_Free(struct StringBuf *sbuf)
+{
+ StringBuf_Destroy(sbuf);
+ aFree(sbuf);
+}
+
+// Return the built string from the StringBuf [MouseJstr]
+char * StringBuf_Value(struct StringBuf *sbuf)
+{
+ *sbuf->ptr_ = '\0';
+ return sbuf->buf_;
+}
+
+#ifdef WIN32
+
+char* checkpath(char *path, const char *srcpath)
+{ // just make sure the char*path is not const
+ char *p=path;
+ if(NULL!=path && NULL!=srcpath)
+ while(*srcpath) {
+ if (*srcpath=='/') {
+ *p++ = '\\';
+ srcpath++;
+ }
+ else
+ *p++ = *srcpath++;
+ }
+ *p = *srcpath; //EOS
+ return path;
+}
+
+void findfile(const char *p, const char *pat, void (func)(const char*))
+{
+ WIN32_FIND_DATA FindFileData;
+ HANDLE hFind;
+ char tmppath[MAX_PATH+1];
+
+ const char *path = (p ==NULL)? "." : p;
+ const char *pattern = (pat==NULL)? "" : pat;
+
+ checkpath(tmppath,path);
+ if( PATHSEP != tmppath[strlen(tmppath)-1])
+ strcat(tmppath, "\\*");
+ else
+ strcat(tmppath, "*");
+
+ hFind = FindFirstFile(tmppath, &FindFileData);
+ if (hFind != INVALID_HANDLE_VALUE)
+ {
+ do
+ {
+ if (strcmp(FindFileData.cFileName, ".") == 0)
+ continue;
+ if (strcmp(FindFileData.cFileName, "..") == 0)
+ continue;
+
+ sprintf(tmppath,"%s%c%s",path,PATHSEP,FindFileData.cFileName);
+
+ if (FindFileData.cFileName && strstr(FindFileData.cFileName, pattern)) {
+ func( tmppath );
+ }
+
+
+ if( FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
+ {
+ findfile(tmppath, pat, func);
+ }
+ }while (FindNextFile(hFind, &FindFileData) != 0);
+ FindClose(hFind);
+ }
+ return;
+}
+#else
+
+#define MAX_DIR_PATH 2048
+
+char* checkpath(char *path, const char*srcpath)
+{ // just make sure the char*path is not const
+ char *p=path;
+ if(NULL!=path && NULL!=srcpath)
+ while(*srcpath) {
+ if (*srcpath=='\\') {
+ *p++ = '/';
+ srcpath++;
+ }
+ else
+ *p++ = *srcpath++;
+ }
+ *p = *srcpath; //EOS
+ return path;
+}
+
+void findfile(const char *p, const char *pat, void (func)(const char*))
+{
+ DIR* dir; // pointer to the scanned directory.
+ struct dirent* entry; // pointer to one directory entry.
+ struct stat dir_stat; // used by stat().
+ char tmppath[MAX_DIR_PATH+1];
+ char path[MAX_DIR_PATH+1]= ".";
+ const char *pattern = (pat==NULL)? "" : pat;
+ if(p!=NULL) strcpy(path,p);
+
+ // open the directory for reading
+ dir = opendir( checkpath(path, path) );
+ if (!dir) {
+ ShowError("Cannot read directory '%s'\n", path);
+ return;
+ }
+
+ // scan the directory, traversing each sub-directory
+ // matching the pattern for each file name.
+ while ((entry = readdir(dir))) {
+ // skip the "." and ".." entries.
+ if (strcmp(entry->d_name, ".") == 0)
+ continue;
+ if (strcmp(entry->d_name, "..") == 0)
+ continue;
+
+ sprintf(tmppath,"%s%c%s",path, PATHSEP, entry->d_name);
+
+ // check if the pattern matchs.
+ if (entry->d_name && strstr(entry->d_name, pattern)) {
+ func( tmppath );
+ }
+ // check if it is a directory.
+ if (stat(tmppath, &dir_stat) == -1) {
+ ShowError("stat error %s\n': ", tmppath);
+ continue;
+ }
+ // is this a directory?
+ if (S_ISDIR(dir_stat.st_mode)) {
+ // decent recursivly
+ findfile(tmppath, pat, func);
+ }
+ }//end while
+}
+#endif
+
+unsigned char GetByte(unsigned long val, size_t num)
+{
+ switch(num)
+ {
+ case 0:
+ return (unsigned char)((val & 0x000000FF) );
+ case 1:
+ return (unsigned char)((val & 0x0000FF00)>>0x08);
+ case 2:
+ return (unsigned char)((val & 0x00FF0000)>>0x10);
+ case 3:
+ return (unsigned char)((val & 0xFF000000)>>0x18);
+ default:
+ return 0; //better throw something here
+ }
+}
+unsigned short GetWord(unsigned long val, size_t num)
+{
+ switch(num)
+ {
+ case 0:
+ return (unsigned short)((val & 0x0000FFFF) );
+ case 1:
+ return (unsigned short)((val & 0xFFFF0000)>>0x10);
+ default:
+ return 0; //better throw something here
+ }
+}
+unsigned short MakeWord(unsigned char byte0, unsigned char byte1)
+{
+ return byte0 | (byte1<<0x08);
+}
+unsigned long MakeDWord(unsigned short word0, unsigned short word1)
+{
+ return ((unsigned long)word0)
+ | ((unsigned long)word1<<0x10);
+}
+
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