c - Segmentation Fault - Could not Access Memory, Kern_Invalid_Address -

-

im getting error, be???

program received signal exc_bad_access, not access memory. reason: kern_invalid_address @ address: 0x0000000000000000 0x00007fff86703c00 in strlen ()

i ran in gdb , first thing appears. doesnt tell me on line can find error...

on terminal error: segmentation fault

im positive error in area "funcion busqueda" im pasting whole thing can tell me if spot else.

i need find cause segmentation fault!!! beeeee!?

#include<stdio.h> #include<stdlib.h> #include<string.h> #include "clientes.h"   int ordena(lista1 *inicio,lista1 *aux,lista1 *nodo,lista1 *aux2); int agrega_cliente(lista1 *inicio, lista1*aux,lista1 *nodo,lista1 *aux2); int busca_cliente(lista1 *inicio, lista1*aux,lista1 *nodo,lista1 *aux2,lista2    *inicioventas,lista2 *auxventas,lista2 *nodoventas,lista2 *aux2ventas); int main(void) {    int menu,pops=0; lista1 *inicio, *aux,*nodo, *aux2; inicio=null; aux=inicio; lista2 *inicioventas, *auxventas,*nodoventas, *aux2ventas; inicioventas=null; auxventas=inicioventas;  system("clear");   //funcion void carga_datos(); ordena(inicio,aux,nodo,aux2);    printf("tienda departamental\n\n\n");   printf("1. agregar un cliente.\n2. agregar una venta.\n3. buscar cliente. \n4. borrar cliente. \n5. borrar una venta. \n6. salir.");   printf("\n\nelige una opcion: ");    scanf("%d", &menu);   switch(menu)     {    case 1:   system("clear");   printf("opcion1\n");         agrega_cliente(inicio,aux,nodo,aux2);    break;    case 2:   system("clear");   printf("opcion2\n");   break;     case 3:   system("clear");   printf("opcion3\n");          busca_cliente(inicio,aux,nodo,aux2,inicioventas, auxventas, nodoventas, aux2ventas);         puts(aux2->nombre);     break;   case 4:   system("clear");   printf("opcion4\n");   break;    case 5:   system("clear");   printf("opcion5\n");   break;    case 6:   system("clear");   printf("opcion6\n");   break;   }  }  ////////////////////////////////////////funcion busqueda//////////////////////////  int busca_cliente(lista1 *inicio, lista1 *aux,lista1 *nodo,lista1 *aux2,lista2     *inicioventas,lista2 *auxventas,lista2 *nodoventas,lista2 *aux2ventas)  { char nombrebusqueda[80]; int numclienteprueba; printf("dame el nombre del cliente buscar\n"); scanf("%s",nombrebusqueda); aux2=aux;  while(aux2!=null) {      if((strcmp(nombrebusqueda,aux2->nombre))==0)     {         puts(aux2->nombre);         ////////buscamos la venta         aux2ventas=auxventas;          while(aux2ventas!=null)         {             numclienteprueba=aux2ventas->num_clienteventas;             if(numclienteprueba==aux2ventas->num_clienteventas)             {                 printf("wow");             }             aux2ventas=aux2ventas->sigvent;         }         ////////////     }     aux2=aux2->sig;   }  }     ////////////////////////////////////////////funcion ordena     int ordena(lista1 *inicio, lista1*aux,lista1 *nodo,lista1 *aux2)  { char pruebaman[80],probaman[80];//nombres char pruebadireccion[150],probadireccion[150];//direccion int pruebanum_cliente,probanum_cliente;//numero de cliente aux2=aux; strcpy(pruebaman,aux2->nombre); strcpy(pruebadireccion,aux2->direccion); pruebanum_cliente=aux2->num_cliente; aux2=aux2->ant;   {      strcpy(probaman,aux2->nombre);      if(pruebaman[0]<probaman[0])     {         strcpy(pruebaman,aux2->nombre);         strcpy(pruebadireccion,aux2->direccion);         pruebanum_cliente=aux2->num_cliente;         aux2=aux2->sig;         strcpy(aux2->nombre,probaman);          strcpy(aux2->direccion,probadireccion);         probanum_cliente=aux2->num_cliente;         }     strcpy(pruebaman,aux2->nombre);     strcpy(pruebadireccion,aux2->direccion);     pruebanum_cliente=aux2->num_cliente;      aux2=aux2->ant;       printf("ciclo\n\n");    }   while(aux2!=null);  aux2=aux;  strcpy(pruebaman,aux2->nombre);  aux2=aux2->ant;  strcpy(probaman,aux2->nombre);  if(pruebaman[0]<probaman[0])     ordena(inicio,aux,nodo,aux2); }    ///////////////////    ///////////////////////////////////////////////////////agrega cliente    int agrega_cliente(lista1 *inicio, lista1*aux,lista1 *nodo,lista1 *aux2)  {  file *clientes; clientes=fopen("clientes.txt", "a+"); //fseek(clientes, 0l, seek_end);  inicio=null; nodo=malloc(sizeof(lista1)); aux=malloc(sizeof(lista1));  if(nodo==null) {     printf("no hay memoria\n");     exit(1); } printf("nombre: "); gets(nodo->nombre); printf("direccion: "); gets(nodo->direccion); printf("numero de cliente: "); scanf("%d", &nodo->num_cliente);  if(inicio==null) {     inicio=nodo;     inicio->sig=null;     inicio->ant=null;     aux=inicio; } else {     aux->sig =nodo;     nodo->ant=aux;     aux=nodo;     nodo->sig=null; } nodo=malloc(sizeof(lista1));  aux2=inicio;  while(aux2!=null)    {     fprintf(clientes, "%s\n", aux2->nombre);     fprintf(clientes, "%s\n", aux2->direccion);     fprintf(clientes, "%d\n", aux2->num_cliente);     puts(aux2->nombre);     puts(aux2->direccion);     aux2=aux2->sig;    }   aux2=aux;   {     puts(aux2->nombre);     aux2=aux2->ant;   }     while(aux2!=null); fclose(clientes); }   /////////////////////////////////////////////////////

it looks null pointer. when try access memory location 0x0000 means pointer pointing 0x0000 (null).


Comments

Post a Comment

Popular posts from this blog

objective c - Change font of selected text in UITextView -

-
can suggest me how change font of selected text in uitextview.i cannot use uiwebview since have edit text. have seen pages app.how possible in app. see formatting text within uilabel differently . since need editing, should @ javascript-based editors such ckeditor or tinymce . highly recommend wwdc 2011 video session 511: "rich text editing in safari on ios."
Read more

php - Accessing POST data in Facebook cavas app -

-
so i've got simple form in canvas / iframe facebook app, , i'm trying pass along values post. reading on s.o. , fb's latest docs, understand it, data send via post form can accessed on receiving end $_request object. i read on thread on s.o. in order post forms work need pass along input named "signed_request" value current signed_request (i have signed request working ok otherwise...all login , authentication stuff working fine). isnt mentioned anywhere in official fb docs. so problem comes in $_request object signed request, , bunch of other session stuff. form inputs found. the way can read them set method of form "request" isn't real form method. takes of inputs , sends them args in url. horrible. here's sample page canvas app form i'm using try debug (leaving out authentication stuff): <form enctype="application/x-www-form-urlencoded" method="post" target="_top" id="my_form" action=...
Read more

c# - Getting control value when switching a view as part of a multiview -

-
i have following code in aspx page: <asp:button id="display_button" runat="server" text="display" onclick="button1_click" /> &nbsp; <asp:button id="edit_button" runat="server" text="edit" onclick="button2_click" /> &nbsp; <asp:button id="save_button" runat="server" text="save" onclick="button3_click" visible="false" /> &nbsp; <asp:multiview id="multiview1" runat="server" activeviewindex="0"> <asp:view id="view1" runat="server"> <asp:formview id="view_program" runat="server"> <itemtemplate> <%# eval("status").tostring().trim() %> </itemtemplate> </asp:formview> </asp:view> <asp:view id="view2" runat="server"> ...
Read more