getaddrinfo.c: Avoid uninitialized pointer access [BZ #32465]HEADmaster

Add valid_decimal_value to check valid decimal value in a string to
avoid uninitialized endp in add_prefixlist and gaiconf_init as reported
by Clang 19:

./getaddrinfo.c:1884:11: error: variable 'endp' is used uninitialized whenever '||' condition is true [-Werror,-Wsometimes-uninitialized]
 1884 |       && (cp == NULL
      |           ^~~~~~~~~~
./getaddrinfo.c:1887:11: note: uninitialized use occurs here
 1887 |       && *endp == '\0'
      |           ^~~~
./getaddrinfo.c:1884:11: note: remove the '||' if its condition is always false
 1884 |       && (cp == NULL
      |           ^~~~~~~~~~
 1885 |           || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
      |           ~~
./getaddrinfo.c:1875:13: note: initialize the variable 'endp' to silence this warning
 1875 |   char *endp;
      |             ^
      |              = NULL

This fixes BZ #32465.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>

0 files changed, 0 insertions, 0 deletions