[Buildroot] [PATCH 1/1] package/iftop: fix static build

[Arnout Vandecappelle <arnout@mind.be>]

On 02/06/2021 08:25, Fabrice Fontaine wrote:
> Fixes:
>  - http://autobuild.buildroot.org/results/eb53ff6b031c654daec57050dec376b5c9134a81
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

 Applied to master, thanks.

 You apparently didn't send the patch upstream, but the last upstream commit is
three years old and the mailing list had no upstream reactions to the last few
patches, so I guess that wouldn't be very useful anyway.

 Regards,
 Arnout

> ---
>  ...ame-pcap_filter-to-iftop_pcap_filter.patch | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 package/iftop/0002-Rename-pcap_filter-to-iftop_pcap_filter.patch
> 
> diff --git a/package/iftop/0002-Rename-pcap_filter-to-iftop_pcap_filter.patch b/package/iftop/0002-Rename-pcap_filter-to-iftop_pcap_filter.patch
> new file mode 100644
> index 0000000000..92eedccab7
> --- /dev/null
> +++ b/package/iftop/0002-Rename-pcap_filter-to-iftop_pcap_filter.patch
> @@ -0,0 +1,51 @@
> +From 64a185ce2017e4523f4bc39a36c7aebd6d68549a Mon Sep 17 00:00:00 2001
> +From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> +Date: Wed, 2 Jun 2021 08:21:04 +0200
> +Subject: [PATCH] Rename pcap_filter to iftop_pcap_filter
> +
> +Rename pcap_filter to iftop_pcap_filter to fix the following static
> +build failure:
> +
> +/home/buildroot/autobuild/run/instance-3/output-1/host/bin/riscv64-linux-gcc  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static   -static -o iftop addr_hash.o edline.o hash.o iftop.o ns_hash.o options.o resolver.o screenfilter.o serv_hash.o sorted_list.o threadprof.o ui_common.o ui.o tui.o util.o addrs_ioctl.o addrs_dlpi.o dlcommon.o stringmap.o cfgfile.o vector.o  -lpcap -lpcap -L/home/buildroot/autobuild/run/instance-3/output-1/host/riscv64-buildroot-linux-musl/sysroot/usr/bin/../../../../bin/../riscv64-buildroot-linux-musl/sysroot/usr/lib -lnl-genl-3 -lnl-3 -lpthread   -lcurses
> +/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-musl/10.2.0/../../../../riscv64-buildroot-linux-musl/bin/ld: /home/buildroot/autobuild/run/instance-3/output-1/host/riscv64-buildroot-linux-musl/sysroot/usr/bin/../../../../bin/../riscv64-buildroot-linux-musl/sysroot/usr/lib/libpcap.a(bpf_filter.o): in function `pcap_filter':
> +bpf_filter.c:(.text+0x4a8): multiple definition of `pcap_filter'; iftop.o:iftop.c:(.bss+0x1a8): first defined here
> +
> +Fixes:
> + - http://autobuild.buildroot.org/results/eb53ff6b031c654daec57050dec376b5c9134a81
> +
> +Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> +---
> + iftop.c      | 6 +++---
> + 1 files changed, 3 insertions(+), 3 deletions(-)
> +
> +diff --git a/iftop.c b/iftop.c
> +index aaec6aa..f89eee3 100644
> +--- a/iftop.c
> ++++ b/iftop.c
> +@@ -74,7 +74,7 @@ int history_len = 1;
> + pthread_mutex_t tick_mutex;
> + 
> + pcap_t* pd; /* pcap descriptor */
> +-struct bpf_program pcap_filter;
> ++struct bpf_program iftop_pcap_filter;
> + pcap_handler packet_handler;
> + 
> + sig_atomic_t foad;
> +@@ -679,12 +679,12 @@ char *set_filter_code(const char *filter) {
> +         sprintf(x, "(%s) and (ip or ip6)", filter);
> +     } else
> +         x = xstrdup("ip or ip6");
> +-    if (pcap_compile(pd, &pcap_filter, x, 1, 0) == -1) {
> ++    if (pcap_compile(pd, &iftop_pcap_filter, x, 1, 0) == -1) {
> +         xfree(x);
> +         return pcap_geterr(pd);
> +     }
> +     xfree(x);
> +-    if (pcap_setfilter(pd, &pcap_filter) == -1)
> ++    if (pcap_setfilter(pd, &iftop_pcap_filter) == -1)
> +         return pcap_geterr(pd);
> +     else
> +         return NULL;
> +-- 
> +2.30.2
> +
>