From: Alexey Izbyshev <izbyshev@ispras.ru>
To: musl@lists.openwall.com
Subject: Re: [musl] [PATCH v2] MT fork
Date: Wed, 11 Nov 2020 09:35:22 +0300 [thread overview]
Message-ID: <ddd7b2bb1e02df633caa70c6dc90b7c5@ispras.ru> (raw)
In-Reply-To: <20201111005216.GH534@brightrain.aerifal.cx>
On 2020-11-11 03:52, Rich Felker wrote:
> Here's a proposed first patch in series, getting rid of getdelim/stdio
> usage in ldso. I think that suffices to set the stage for adding
> __libc_malloc, __libc_free, __libc_calloc, __libc_realloc and having
> ldso use them.
>
> +static ssize_t read_loop(int fd, void *p, size_t n)
> +{
> + unsigned char *b = p;
> + for (size_t l, i=0; i<n; i+=l) {
> + l = read(fd, b+i, n-i);
> + if (l<0) {
> + if (errno==EINTR) continue;
This increments `i` by a negative `l`.
> + else return -1;
> + }
> + if (l==0) return i;
> + }
> + return n;
> +}
> + if (fd>=0) {
> + size_t n = 0;
> + if (!fstat(fd, &st)) n = st.st_size;
> + sys_path = malloc(n+1);
> + sys_path[n] = 0;
`sys_path` can be NULL here.
> + if (!sys_path || read_loop(fd, sys_path, n)<0) {
> free(sys_path);
> sys_path = "";
> }
> - fclose(f);
> + close(fd);
> } else if (errno != ENOENT) {
> sys_path = "";
> }
Alexey
next prev parent reply other threads:[~2020-11-11 6:35 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 0:50 [musl] Status report and " Rich Felker
2020-10-26 0:59 ` Rich Felker
2020-10-26 3:29 ` Rich Felker
2020-10-26 18:44 ` Érico Nogueira
2020-10-26 19:52 ` Rich Felker
2020-10-26 20:11 ` Érico Nogueira
2020-10-27 21:17 ` Rich Felker
2020-10-28 18:56 ` [musl] [PATCH v2] " Rich Felker
2020-10-28 23:06 ` Milan P. Stanić
2020-10-29 16:13 ` Szabolcs Nagy
2020-10-29 16:20 ` Rich Felker
2020-10-29 20:55 ` Milan P. Stanić
2020-10-29 22:21 ` Szabolcs Nagy
2020-10-29 23:00 ` Milan P. Stanić
2020-10-29 23:27 ` Rich Felker
2020-10-30 0:13 ` Rich Felker
2020-10-30 7:47 ` Milan P. Stanić
2020-10-30 18:52 ` Milan P. Stanić
2020-10-30 18:57 ` Rich Felker
2020-10-30 21:31 ` Ariadne Conill
2020-10-31 3:31 ` Rich Felker
2020-11-06 3:36 ` Rich Felker
2020-11-08 16:12 ` Szabolcs Nagy
2020-11-09 17:07 ` Rich Felker
2020-11-09 18:01 ` Érico Nogueira
2020-11-09 18:44 ` Rich Felker
2020-11-09 18:54 ` Érico Nogueira
2020-11-09 21:59 ` Szabolcs Nagy
2020-11-09 22:23 ` Rich Felker
2020-11-11 0:52 ` Rich Felker
2020-11-11 6:35 ` Alexey Izbyshev [this message]
2020-11-11 11:25 ` Szabolcs Nagy
2020-11-11 14:56 ` Rich Felker
2020-11-11 16:35 ` Rich Felker
2020-10-31 7:22 ` Timo Teras
2020-10-31 13:29 ` Szabolcs Nagy
2020-10-31 13:35 ` Timo Teras
2020-10-31 14:41 ` Ariadne Conill
2020-10-31 14:49 ` Rich Felker
2020-10-31 14:48 ` Rich Felker
2020-10-31 14:47 ` Rich Felker
2020-10-29 23:32 ` Szabolcs Nagy
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