On Thu, May 23, 2019 at 02:56:11PM +0100, André Draszik wrote:
>...
> Also, in connman's gweb.c 'addr' is initialised to NULL. Again,
> NULL isn't anything 'returned by getaddrinfo()', so even in glibc
> it only works by pure luck.
>...
Not pure luck, free(NULL) is valid but passing random garbage to
freeaddrinfo() would always fail.[1]
The critical point is that freeaddrinfo(NULL) working with a C library
is only an implementation detail of this specific version of the library,
not something a C library has to support according to POSIX.
> Cheers,
> Andre'
cu
Adrian
[1] unless the garbage happens to be NULL
--
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of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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