Help Please!!!

As no one have answered me i will post it again if someone could help i would appreciate... PLEASE!!! My brain is already melting :/

I know it's not a simple question but i really can't understand what is happening :/

I'm having a problem with a function... everything goes ok till it returns the result because the string get somehow "corrupted"... i have searched for errors but i really didn't find it... it's a complex code, with structs and pointers and but i will copy and paste what i think it's necessary to understan it... If someone could help the error occurs in the line "TF = GetToken();" in the function LTEIns();

the functions ImpErr(); and ImpErrS(); just print error messages and aren't necessary and for that i didn't post them. The functions VerChFo(); and VerChNo just verify if the chars are valid characters... and if there is some /**/ in the middle it's just things i had changed trying to fix it /

Code:

#define INTGR 1
#define FLT 2
#define STRG 3
#define TOK 4
#define TRUE 1
#define FALSE 0
#define ENTER 13
#define MAXF 10
#define MAXS 30
#define NOME 5
#define FONE 6

typedef struct tokelemento {
        int ttelem;
        char *tpselem;
        }*TOKELEM;

typedef struct tokens {
        TOKELEM nomelem;
        TOKELEM fonelem;
        }*TOKEN;

typedef struct  elemento {
                int telem;                                  
                union {
                       int ielem;
                       float felem;                         
                       char *pselem;
                       TOKEN toelem;
                       } elem;
        } *PLISTELEM;                             
typedef struct lnodo {
                PLISTELEM litem;
                struct lnodo *next;                                
        } *PLIST;          

char VerChNo (char *c) {
        while ( ((*c!= ' ') && (*c!= ENTER) && (*c!='"')) && ((*c < 'A') || (*c > 'Z')) && ( (*c < 'a') || (*c > 'z'))) {
            if (*c == 0) {
               *c = getch();
               if (*c==10) return ENTER;
               fflush(stdin);
               printf ("\b");
               ImpErr();
               *c = getche();
               }
               else
                   sound(362);
                   delay (500);
                   nosound( );
                   printf ("\b");
                   textcolor(0);
                   putch (219);
                   textcolor(15);
                   printf ("\b");
                   ImpErr();
                   *c = getche();

            }
        if ((*c>= 'a') && (*c<='z')) *c = toupper(*c);
        return *c;
        }

char VerChFo (char *c) {
        while ( ((*c!= ' ') && (*c!= ENTER)) && ( (*c < '0') || (*c > '9')) && (*c != '-')) {
            if (*c == 0) {
               *c = getch();
               if (*c==10) return ENTER;
               fflush(stdin);
               printf ("\b");
               ImpErr();
               *c = getche();
               }
               else
                   sound(362);
                   delay (500);
                   nosound( );
                   printf ("\b");
                   textcolor(0);
                   putch (219);
                   textcolor(15);
                   printf ("\b");
                   ImpErr();
                   *c = getche();

            }
        return *c;
        }

TOKELEM GetToken (void) {
        char c;
        TOKELEM tok=NULL;
        char S[MAXS], F[MAXF];
        int i = 0;
        float fl;

        c = getche();
        while ( c == ' ') c=getche();
        while ( (c != ' ' ) && (c!= ENTER) ){
            tok = malloc (sizeof(struct tokelemento));
            if (c=='"') {
               c=getche();
               VerChNo(&c);
               while ( c!='"'){
                     S[i]=c;
                     i++;
                     c=getche();
                     VerChNo(&c);
                     if (i==MAXS-2) {
                        c = '"';
                        ImpErrS(S);
                     }
                    }
               S[i]='\0';
               tok->ttelem = NOME;
               tok->tpselem = S;
               return tok;
               }
               else if (c>='0'&& c<='9'){
                      do {
                          while ( (c != ' ' ) && (c!= ENTER) ){
                               F[i]=c;
                               i++;
                               c=getche();
                               VerChFo(&c);
                               if (i==(MAXF-1) c=' ';
                               }
                          F[i]='\0';
                          tok->ttelem = FONE;
/*                          strcpy(tok->tpselem, F);*/
                          tok->tpselem = *F;
                          if ((strstr(tok->tpselem,"-") == NULL) || (strlen(F)<8) || (strlen(F)>10))  {
                            printf ("\n Erro de inserçao do telefone!");
                            printf ("\n Insira novamente o numero do telefone no formato nnnn-nnnn\n ");
                            c = getche();
                            VerChFo(&c);
                          }
                          } while (( strstr(tok->tpselem,"-") == NULL ) || (strlen(F)<8) || (strlen(F)>10));
                      return tok;
                      }
                      else {
                          printf ("\n Erro de inserção!!! Insira o nome entre \"s e separe-o do telefone por espaço");
                          c=getche();
                        }

        }
        tok = NULL;
        return tok;
        }

PLISTELEM LTEIns (void) {
        int TL = TOK;
        PLISTELEM LE;
        TOKELEM TN, TF;

        LE = malloc (sizeof(struct elemento));
        LE->telem = TL;
        fflush(stdin);
        while ( 1 ){
            TN = GetToken();
            if (TN->ttelem == NOME) {
               LE->elem.toelem->nomelem = TN;
               TF = GetToken();
               while ( TF->ttelem != FONE ) {
                printf ("\n Erro ao inserir o número do telefone!");
                printf ("\n Insira o número do telefone no formato nnnn-nnnn:\n\n ");
                TF = GetToken();
               }
               LE->elem.toelem->fonelem = TF;
               return LE;
               }
               else
                   printf ("\nErro ao inserir o nome!!!");
                   printf ("Insira os dados no formato \"nome\" nnnn-nnnn: \n\n ");
        }
       }

Thanks and sorry for so much code

Frigga

Code:

/* strcpy(tok->tpselem, F);*/
tok->tpselem = *F;

I think you need to allocate memory for tpselem:

Code:

tok->tpselem = strdup(F);

thanks guys for your help!!!

btw, strdup(F); hadn't worked at all (i had tried before) and don't ask me why :o)

about the fflush(stdin); it's is just to get away the keyboard echo if the user type some function key :oP

buy VvV thanks because the code you sent me worked :o)
My brain was already melting and well, i should had thought i could allocate in that way instead of strdup(F); :o)

and YOU are right, i'm using Turbo C 2.01 and I HATE IT!!!! :o/

(But i need to use it since it's a homework for my college)

thanks again guys i knew i had missed something :o)