strcasestr(3)                                             strcasestr(3)

  strcasestr()

  NAME

    strcasestr() - case-insensitive search for substring in a string

  SYNOPSIS

    #include 

    char *strcasestr(const char *s, const char *find)

  DESCRIPTION

    The strcasestr(3) function searches the string s, ignoring case, to find
    the first occurrence of the string find.

  RETURN VALUES

    On success, the strcasestr(3) function returns a pointer to the first
    occurrence of the substring find. On failure, it returns NULL.

  SEE ALSO

    strstr(3)

  USAGE NOTES

    The strcasestr function is thread safe.

    The strcasestr function is not async-signal safe.