string search

i am trying to make an inventory programme. what i need to know
is how to search strings in a file so i can store information then retreive it later, if anyone knows how to do this that would be appreciated,


cheers

Read the file into a buffer
Lookup strstr()

This one was given by prelude

Code:

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const char *sub(const char *m, const char *s){
do {
        const char *p, *q;

        for (p = s, q = m; *p == *q; p++, q++)
          if (*(q+1) == '\0')  return s;
} while (*s++ != '\0');

  return 0;
}

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