查找产品的类型用sscanf()

#include <stdio.h>
#include <stdlib.h>
#define Board_File "/data/board.prop"
char product_name[20];
char *get_product_name(char *file_name )
{
    FILE *pFile;
    char buffer[1024];
    char *machine;
   
    memset(product_name, 0, sizeof(product_name));
    pFile = fopen(file_name, "r");
    if(pFile==NULL)
    {
      printf("open file failed\n");
      return NULL;
    }
    
    while(fgets(buffer, 1024 , pFile))
    {
       machine =strstr(buffer, "hw.machine");// hw.machine = spark

       if(machine)
       {
          printf("machine buffer :%s\n", buffer);
          sscanf(buffer,"%*[^=]=%s",product_name);
          printf("get product name :%s\n", product_name);
          fclose(pFile);
          return product_name;
       }
    }
    // get product name failed

    fclose(pFile);
    return NULL;
   
}

int main()
{
  
   char *product = get_product_name(Board_File);
   printf("product name :%s\n", product);
   return 0;
}