Added SYS_OPENCHILD system call

[tpg/acess2.git] / Kernel / lib.c

diff --git a/Kernel/lib.c b/Kernel/lib.c
index bfae2a4..cfbae0f 100644 (file)
--- a/Kernel/lib.c
+++ b/Kernel/lib.c
@@ -14,7 +14,55 @@ const short DAYS_BEFORE[] = {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 3
 #define UNIX_TO_2K     ((30*365*3600*24) + (7*3600*24))        //Normal years + leap years
 
 // === PROTOTYPES ===
+ int   atoi(const char *string);
+void   itoa(char *buf, Uint num, int base, int minLength, char pad);
+ int   vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args);
+ int   sprintf(char *__s, const char *__format, ...);
+ int   tolower(int c);
+ int   strucmp(const char *Str1, const char *Str2);
+ int   strpos(const char *Str, char Ch);
+ Uint8 ByteSum(void *Ptr, int Size);
+size_t strlen(const char *__s);
+char   *strcpy(char *__str1, const char *__str2);
+char   *strncpy(char *__str1, const char *__str2, size_t max);
+ int   strcmp(const char *str1, const char *str2);
+ int   strncmp(const char *str1, const char *str2, size_t num);
+char   *strdup(const char *Str);
+ int   DivUp(int num, int dem);
+ int   strpos8(const char *str, Uint32 Search);
  int   ReadUTF8(Uint8 *str, Uint32 *Val);
+ int   WriteUTF8(Uint8 *str, Uint32 Val);
+Sint64 timestamp(int sec, int mins, int hrs, int day, int month, int year);
+Uint   rand(void);
+ int   CheckString(char *String);
+ int   CheckMem(void *Mem, int NumBytes);
+ int   ModUtil_LookupString(char **Array, char *Needle);
+ int   ModUtil_SetIdent(char *Dest, char *Value);
+
+// === EXPORTS ===
+EXPORT(atoi);
+EXPORT(itoa);
+EXPORT(vsnprintf);
+EXPORT(sprintf);
+EXPORT(tolower);
+EXPORT(strucmp);
+EXPORT(strpos);
+EXPORT(ByteSum);
+EXPORT(strlen);
+EXPORT(strcpy);
+EXPORT(strncpy);
+EXPORT(strcmp);
+EXPORT(strncmp);
+EXPORT(strdup);
+EXPORT(DivUp);
+EXPORT(strpos8);
+EXPORT(ReadUTF8);
+EXPORT(WriteUTF8);
+EXPORT(timestamp);
+EXPORT(CheckString);
+EXPORT(CheckMem);
+EXPORT(ModUtil_LookupString);
+EXPORT(ModUtil_SetIdent);
 
 // === GLOBALS ===
 static Uint    giRandomState = RANDOM_SEED;
@@ -26,9 +74,16 @@ static Uint  giRandomState = RANDOM_SEED;
 int atoi(const char *string)
 {
         int    ret = 0;
+        int    bNeg = 0;
+       
+       //Log("atoi: (string='%s')", string);
        
        // Clear non-numeric characters
-       while( !('0' <= *string && *string <= '9') )    string++;
+       while( !('0' <= *string && *string <= '9') && *string != '-' )  string++;
+       if( *string == '-' ) {
+               bNeg = 1;
+               while( !('0' <= *string && *string <= '9') )    string++;
+       }
        
        if(*string == '0')
        {
@@ -37,32 +92,34 @@ int atoi(const char *string)
                {
                        // Hex
                        string ++;
-                       for( ;; ) {
-                               ret *= 16;
-                               if('0' <= *string && *string <= '9')
+                       for( ;; string ++ )
+                       {
+                               if('0' <= *string && *string <= '9') {
+                                       ret *= 16;
                                        ret += *string - '0';
-                               else if('A' <= *string && *string <= 'F')
+                               }
+                               else if('A' <= *string && *string <= 'F') {
+                                       ret *= 16;
                                        ret += *string - 'A' + 10;
-                               else if('a' <= *string && *string <= 'f')
+                               }
+                               else if('a' <= *string && *string <= 'f') {
+                                       ret *= 16;
                                        ret += *string - 'a' + 10;
+                               }
                                else
                                        break;
-                               string ++;
                        }
                }
-               else
+               else    // Octal
                {
-                       for( ;; )
+                       for( ; '0' <= *string && *string <= '7'; string ++ )
                        {
                                ret *= 8;
-                               if('0' <= *string && *string <= '7')
-                                       ret += *string - '0';
-                               else
-                                       break;
+                               ret += *string - '0';
                        }
                }
        }
-       else
+       else    // Decimal
        {
                for( ; '0' <= *string && *string <= '9'; string++)
                {
@@ -70,6 +127,11 @@ int atoi(const char *string)
                        ret += *string - '0';
                }
        }
+       
+       if(bNeg)        ret = -ret;
+       
+       //Log("atoi: RETURN %i", ret);
+       
        return ret;
 }
 
@@ -108,7 +170,14 @@ void itoa(char *buf, Uint num, int base, int minLength, char pad)
        buf[i] = 0;
 }
 
-#define PUTCH(c)       do{if(pos==__maxlen)break;if(__s){__s[pos++]=(c);}else{pos++;}}while(0)
+/**
+ * \brief Append a character the the vsnprintf output
+ */
+#define PUTCH(c)       do{\
+       char ch=(c);\
+       if(pos==__maxlen){return pos;}\
+       if(__s){__s[pos++]=ch;}else{pos++;}\
+       }while(0)
 int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args)
 {
        char    c, pad = ' ';
@@ -118,6 +187,10 @@ int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args)
         int    isLongLong = 0;
        Uint64  val;
        size_t  pos = 0;
+       // Flags
+       // int  bPadLeft = 0;
+       
+       //Log("vsnprintf: (__s=%p, __maxlen=%i, __format='%s', ...)", __s, __maxlen, __format);
        
        while((c = *__format++) != 0)
        {
@@ -125,6 +198,7 @@ int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args)
                if(c != '%') { PUTCH(c); continue; }
                
                c = *__format++;
+               //Log("pos = %i", pos);
                
                // Literal %
                if(c == '%') { PUTCH('%'); continue; }
@@ -140,6 +214,7 @@ int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args)
                
                // Get Argument
                val = va_arg(args, Uint);
+               //Log("val = %x", val);
                
                // - Padding
                if(c == '0') {
@@ -210,6 +285,7 @@ int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args)
                case 's':
                        p = (char*)(Uint)val;
                printString:
+                       //Log("p = '%s'", p);
                        if(!p)          p = "(null)";
                        while(*p)       PUTCH(*p++);
                        break;
@@ -230,7 +306,6 @@ int vsnprintf(char *__s, size_t __maxlen, const char *__format, va_list args)
        
        if(__s && pos != __maxlen)
                __s[pos] = '\0';
-               
        
        return pos;
 }
@@ -539,7 +614,7 @@ Sint64 timestamp(int sec, int mins, int hrs, int day, int month, int year)
  * \brief Pseudo random number generator
  * \note Unknown effectiveness (made up on the spot)
  */
-Uint rand()
+Uint rand(void)
 {
        Uint    old = giRandomState;
        // Get the next state value
@@ -636,17 +711,3 @@ int ModUtil_SetIdent(char *Dest, char *Value)
        strncpy(Dest, Value, 32);
        return 1;
 }
-
-EXPORT(strlen);
-EXPORT(strdup);
-EXPORT(strcmp);
-EXPORT(strncmp);
-EXPORT(strcpy);
-EXPORT(strncpy);
-
-EXPORT(timestamp);
-EXPORT(ReadUTF8);
-EXPORT(CheckMem);
-EXPORT(CheckString);
-EXPORT(ModUtil_LookupString);
-EXPORT(ModUtil_SetIdent);