From patchwork Sat Dec 8 15:17:03 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: linux-user: convert /proc/net/route when endianess differs between target and host. X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 204668 Message-Id: <1354979824-18788-1-git-send-email-laurent@vivier.eu> To: qemu-devel@nongnu.org Cc: Riku Voipio , Laurent Vivier Date: Sat, 8 Dec 2012 16:17:03 +0100 From: Laurent Vivier List-Id: Signed-off-by: Laurent Vivier --- linux-user/syscall.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index e4291ed..0415135 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -5085,6 +5085,45 @@ static int open_self_auxv(void *cpu_env, int fd) return 0; } +#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) +static int open_net_route(void *cpu_env, int fd) +{ + FILE *fp; + char *line = NULL; + size_t len = 0; + ssize_t read; + + fp = fopen("/proc/net/route", "r"); + if (fp == NULL) { + return -EACCES; + } + + /* read header */ + + read = getline(&line, &len, fp); + dprintf(fd, "%s", line); + + /* read routes */ + + while ((read = getline(&line, &len, fp)) != -1) { + char iface[16]; + uint32_t dest, gw, mask; + unsigned int flags, refcnt, use, metric, mtu, window, irtt; + sscanf(line, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n", + iface, &dest, &gw, &flags, &refcnt, &use, &metric, + &mask, &mtu, &window, &irtt); + dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n", + iface, tswap32(dest), tswap32(gw), flags, refcnt, use, + metric, tswap32(mask), mtu, window, irtt); + } + + free(line); + fclose(fp); + + return 0; +} +#endif + static int do_open(void *cpu_env, const char *pathname, int flags, mode_t mode) { struct fake_open { @@ -5096,6 +5135,9 @@ static int do_open(void *cpu_env, const char *pathname, int flags, mode_t mode) { "/proc/self/maps", open_self_maps }, { "/proc/self/stat", open_self_stat }, { "/proc/self/auxv", open_self_auxv }, +#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) + { "/proc/net/route", open_net_route }, +#endif { NULL, NULL } };