From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathias Nyman Subject: [PATCH v2 net-next] ip: Add color output option Date: Sat, 18 Apr 2015 13:39:45 +0300 Message-ID: <20150418103945.GA26334@iki.fi> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: daniel@iogearbox.net, alexei.starovoitov@gmail.com, aleksi.aalto@iki.fi To: netdev@vger.kernel.org Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:56312 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751811AbbDRKjs (ORCPT ); Sat, 18 Apr 2015 06:39:48 -0400 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: It is hard to quickly find what you are looking for in the output of the ip command. Color helps. This patch adds a '-c' flag to highlight these with individual colors: - interface name - ip address - mac address - up/down state Signed-off-by: Mathias Nyman --- include/color.h | 17 +++++++++++++++ ip/ip.c | 5 ++++- ip/ipaddress.c | 43 +++++++++++++++++++++++++++---------- lib/Makefile | 2 +- lib/color.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++= +++++++++ man/man8/ip.8 | 7 +++++- 6 files changed, 126 insertions(+), 14 deletions(-) create mode 100644 include/color.h create mode 100644 lib/color.c diff --git a/include/color.h b/include/color.h new file mode 100644 index 0000000..1662c62 --- /dev/null +++ b/include/color.h @@ -0,0 +1,17 @@ +#ifndef __COLOR_H__ +#define __COLOR_H__ 1 + +enum color_attr +{ + COLOR_IFNAME, + COLOR_MAC, + COLOR_INET, + COLOR_INET6, + COLOR_OPERSTATE_UP, + COLOR_OPERSTATE_DOWN +}; + +void enable_color(void); +int color_fprintf(FILE *fp, enum color_attr attr, const char *fmt, ...= ); + +#endif diff --git a/ip/ip.c b/ip/ip.c index f7f214b..c23de74 100644 --- a/ip/ip.c +++ b/ip/ip.c @@ -23,6 +23,7 @@ #include "utils.h" #include "ip_common.h" #include "namespace.h" +#include "color.h" =20 int preferred_family =3D AF_UNSPEC; int human_readable =3D 0; @@ -56,7 +57,7 @@ static void usage(void) " -4 | -6 | -I | -D | -B | -0 |\n" " -l[oops] { maximum-addr-flush-attempts } |\n" " -o[neline] | -t[imestamp] | -ts[hort] | -b[atch]= [filename] |\n" -" -rc[vbuf] [size] | -n[etns] name | -a[ll] }\n"); +" -rc[vbuf] [size] | -n[etns] name | -a[ll] |=A0-c[= olor]}\n"); exit(-1); } =20 @@ -257,6 +258,8 @@ int main(int argc, char **argv) exit(-1); } rcvbuf =3D size; + } else if (matches(opt, "-color") =3D=3D 0) { + enable_color(); } else if (matches(opt, "-help") =3D=3D 0) { usage(); } else if (matches(opt, "-netns") =3D=3D 0) { diff --git a/ip/ipaddress.c b/ip/ipaddress.c index e582da0..92afa49 100644 --- a/ip/ipaddress.c +++ b/ip/ipaddress.c @@ -34,6 +34,7 @@ #include "utils.h" #include "ll_map.h" #include "ip_common.h" +#include "color.h" =20 enum { IPADD_LIST, @@ -136,8 +137,15 @@ static void print_operstate(FILE *f, __u8 state) { if (state >=3D sizeof(oper_states)/sizeof(oper_states[0])) fprintf(f, "state %#x ", state); - else - fprintf(f, "state %s ", oper_states[state]); + else { + fprintf(f, "state "); + if (strcmp(oper_states[state], "UP") =3D=3D 0) + color_fprintf(f, COLOR_OPERSTATE_UP, "%s ", oper_states[state]); + else if (strcmp(oper_states[state], "DOWN") =3D=3D 0) + color_fprintf(f, COLOR_OPERSTATE_DOWN, "%s ", oper_states[state]); + else + fprintf(f, "%s ", oper_states[state]); + } } =20 int get_operstate(const char *name) @@ -606,7 +614,8 @@ int print_linkinfo(const struct sockaddr_nl *who, if (n->nlmsg_type =3D=3D RTM_DELLINK) fprintf(fp, "Deleted "); =20 - fprintf(fp, "%d: %s", ifi->ifi_index, + fprintf(fp, "%d: ", ifi->ifi_index); + color_fprintf(fp, COLOR_IFNAME, "%s", tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : ""); =20 if (tb[IFLA_LINK]) { @@ -666,10 +675,11 @@ int print_linkinfo(const struct sockaddr_nl *who, fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b= 1))); =20 if (tb[IFLA_ADDRESS]) { - fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]), - RTA_PAYLOAD(tb[IFLA_ADDRESS]), - ifi->ifi_type, - b1, sizeof(b1))); + color_fprintf(fp, COLOR_MAC, "%s", + ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]), + RTA_PAYLOAD(tb[IFLA_ADDRESS]), + ifi->ifi_type, + b1, sizeof(b1))); } if (tb[IFLA_BROADCAST]) { if (ifi->ifi_flags&IFF_POINTOPOINT) @@ -849,10 +859,21 @@ int print_addrinfo(const struct sockaddr_nl *who,= struct nlmsghdr *n, fprintf(fp, " family %d ", ifa->ifa_family); =20 if (rta_tb[IFA_LOCAL]) { - fprintf(fp, "%s", format_host(ifa->ifa_family, - RTA_PAYLOAD(rta_tb[IFA_LOCAL]), - RTA_DATA(rta_tb[IFA_LOCAL]), - abuf, sizeof(abuf))); + if (ifa->ifa_family =3D=3D AF_INET) + color_fprintf(fp, COLOR_INET, "%s", format_host(ifa->ifa_family, + RTA_PAYLOAD(rta_tb[IFA_LOCAL]), + RTA_DATA(rta_tb[IFA_LOCAL]), + abuf, sizeof(abuf))); + else if (ifa->ifa_family =3D=3D AF_INET6) + color_fprintf(fp, COLOR_INET6, "%s", format_host(ifa->ifa_family, + RTA_PAYLOAD(rta_tb[IFA_LOCAL]), + RTA_DATA(rta_tb[IFA_LOCAL]), + abuf, sizeof(abuf))); + else + fprintf(fp, "%s", format_host(ifa->ifa_family, + RTA_PAYLOAD(rta_tb[IFA_LOCAL]), + RTA_DATA(rta_tb[IFA_LOCAL]), + abuf, sizeof(abuf))); =20 if (rta_tb[IFA_ADDRESS] =3D=3D NULL || memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL= ]), diff --git a/lib/Makefile b/lib/Makefile index 4c7cbc2..1d4045f 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -7,7 +7,7 @@ endif CFLAGS +=3D -fPIC =20 UTILOBJ=3Dutils.o rt_names.o ll_types.o ll_proto.o ll_addr.o inet_pro= to.o namespace.o \ - names.o + names.o color.o =20 NLOBJ=3Dlibgenl.o ll_map.o libnetlink.o =20 diff --git a/lib/color.c b/lib/color.c new file mode 100644 index 0000000..c555642 --- /dev/null +++ b/lib/color.c @@ -0,0 +1,66 @@ +#include +#include + +#include "color.h" + +enum color +{ + C_RED, + C_GREEN, + C_YELLOW, + C_BLUE, + C_MAGENTA, + C_CYAN, + C_WHITE, + C_CLEAR +}; + +static const char * const color_codes[] =3D +{ + "\e[31m", + "\e[32m", + "\e[33m", + "\e[34m", + "\e[35m", + "\e[36m", + "\e[37m", + "\e[0m", + NULL, +}; + +static enum color attr_colors[] =3D +{ + C_CYAN, + C_YELLOW, + C_MAGENTA, + C_BLUE, + C_GREEN, + C_RED +}; + +static int color_is_enabled =3D 0; + +void enable_color(void) +{ + color_is_enabled =3D 1; +} + +int color_fprintf(FILE *fp, enum color_attr attr, const char *fmt, ...= ) +{ + int ret =3D 0; + va_list args; + va_start(args, fmt); + + if (!color_is_enabled) { + ret =3D vfprintf(fp, fmt, args); + goto end; + } + + ret +=3D fprintf(fp, "%s", color_codes[attr_colors[attr]]); + ret +=3D vfprintf(fp, fmt, args); + ret +=3D fprintf(fp, "%s", color_codes[C_CLEAR]); + +end: + va_end(args); + return ret; +} diff --git a/man/man8/ip.8 b/man/man8/ip.8 index 44d1ee6..43ddac9 100644 --- a/man/man8/ip.8 +++ b/man/man8/ip.8 @@ -33,7 +33,8 @@ ip \- show / manipulate routing, devices, policy rout= ing and tunnels .BR inet " | " inet6 " | " ipx " | " dnet " | " link " } | " \fB\-o\fR[\fIneline\fR] | \fB\-n\fR[\fIetns\fR] name | -\fB\-a\fR[\fIll\fR] } +\fB\-a\fR[\fIll\fR] | +\fB\-c\fR[\fIolor\fR] } =20 =20 .SH OPTIONS @@ -165,6 +166,10 @@ to .BR "\-a" , " \-all" executes specified command over all objects, it depends if command su= pports this option. =20 +.TP +.BR "\-c" , " -color" +Use color output. + .SH IP - COMMAND SYNTAX =20 .SS --=20 2.3.5