rdma: add oneline flag

Add oneline output format like other commands.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

7 files changed, 25 insertions, 9 deletions

diff --git a/man/man8/rdma.8 b/man/man8/rdma.8
index c9e5d50d5..5088b9ec3 100644
--- a/man/man8/rdma.8
+++ b/man/man8/rdma.8
@@ -25,8 +25,9 @@ rdma \- RDMA tool
 .ti -8
 .IR OPTIONS " := { "
 \fB\-V\fR[\fIersion\fR] |
-\fB\-d\fR[\fIetails\fR] }
-\fB\-j\fR[\fIson\fR] }
+\fB\-d\fR[\fIetails\fR] |
+\fB\-j\fR[\fIson\fR] |
+\fB\-o\fR[\fIneline\fR] |
 \fB\-p\fR[\fIretty\fR] }
 
 .SH OPTIONS
@@ -63,6 +64,13 @@ When combined with -j generate a pretty JSON output.
 .BR "\-j" , " --json"
 Generate JSON output.
 
+.TP
+.BR "\-o" , " \-oneline"
+output each record on a single line, replacing line feeds
+with the
+.B '\e'
+character.
+
 .SS
 .I OBJECT
 
diff --git a/rdma/dev.c b/rdma/dev.c
index 7496162df..31868c6fe 100644
--- a/rdma/dev.c
+++ b/rdma/dev.c
@@ -94,7 +94,7 @@ static void dev_print_caps(struct rd *rd, struct nlattr **tb)
 
 	caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]);
 
-	print_string(PRINT_FP, NULL, "\n    caps: <", NULL);
+	print_string(PRINT_FP, NULL, "%s    caps: <", _SL_);
 	open_json_array(PRINT_JSON, "caps");
 	for (idx = 0; caps; idx++) {
 		if (caps & 0x1)
diff --git a/rdma/link.c b/rdma/link.c
index 48f7b0877..d7d9558b4 100644
--- a/rdma/link.c
+++ b/rdma/link.c
@@ -96,7 +96,7 @@ static void link_print_caps(struct rd *rd, struct nlattr **tb)
 
 	caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]);
 
-	print_string(PRINT_FP, NULL, "\n    caps: <", NULL);
+	print_string(PRINT_FP, NULL, "%s    caps: <", _SL_);
 	open_json_array(PRINT_JSON, "caps");
 	for (idx = 0; caps; idx++) {
 		if (caps & 0x1)
diff --git a/rdma/rdma.c b/rdma/rdma.c
index bee1985f9..131c6b2ab 100644
--- a/rdma/rdma.c
+++ b/rdma/rdma.c
@@ -16,7 +16,7 @@ static void help(char *name)
 	pr_out("Usage: %s [ OPTIONS ] OBJECT { COMMAND | help }\n"
 	       "       %s [ -f[orce] ] -b[atch] filename\n"
 	       "where  OBJECT := { dev | link | resource | system | statistic | help }\n"
-	       "       OPTIONS := { -V[ersion] | -d[etails] | -j[son] | -p[retty] -r[aw]}\n", name, name);
+	       "       OPTIONS := { -V[ersion] | -d[etails] | -j[son] | -p[retty] | -r[aw]}\n", name, name);
 }
 
 static int cmd_help(struct rd *rd)
@@ -89,6 +89,7 @@ int main(int argc, char **argv)
 		{ "version",		no_argument,		NULL, 'V' },
 		{ "help",		no_argument,		NULL, 'h' },
 		{ "json",		no_argument,		NULL, 'j' },
+		{ "oneline",		no_argument,            NULL, 'o' },
 		{ "pretty",		no_argument,		NULL, 'p' },
 		{ "details",		no_argument,		NULL, 'd' },
 		{ "raw",		no_argument,		NULL, 'r' },
@@ -101,13 +102,14 @@ int main(int argc, char **argv)
 	bool show_details = false;
 	bool show_raw = false;
 	bool force = false;
+	bool oneline = false;
 	struct rd rd = {};
 	char *filename;
 	int opt;
 	int err;
 	filename = basename(argv[0]);
 
-	while ((opt = getopt_long(argc, argv, ":Vhdrpjfb:",
+	while ((opt = getopt_long(argc, argv, ":Vhdropjfb:",
 				  long_options, NULL)) >= 0) {
 		switch (opt) {
 		case 'V':
@@ -126,6 +128,9 @@ int main(int argc, char **argv)
 		case 'r':
 			show_raw = true;
 			break;
+		case 'o':
+			oneline = true;
+			break;
 		case 'j':
 			++json;
 			break;
@@ -151,6 +156,8 @@ int main(int argc, char **argv)
 	argc -= optind;
 	argv += optind;
 
+	_SL_ = oneline ? "\\" : "\n";
+
 	rd.show_details = show_details;
 	rd.show_driver_details = show_driver_details;
 	rd.show_raw = show_raw;
diff --git a/rdma/stat.c b/rdma/stat.c
index b428a62ac..e90b6197c 100644
--- a/rdma/stat.c
+++ b/rdma/stat.c
@@ -291,7 +291,7 @@ static int res_counter_line(struct rd *rd, const char *name, int index,
 	res_get_hwcounters(rd, hwc_table, true);
 	isfirst = true;
 	open_json_array(PRINT_JSON, "lqpn");
-	print_string(PRINT_FP, NULL, "\n    LQPN: <", NULL);
+	print_string(PRINT_FP, NULL, "%s    LQPN: <", _SL_);
 	mnl_attr_for_each_nested(nla_entry, qp_table) {
 		struct nlattr *qp_line[RDMA_NLDEV_ATTR_MAX] = {};
 		err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, qp_line);
diff --git a/rdma/sys.c b/rdma/sys.c
index 7bb0edbfe..7dbe44094 100644
--- a/rdma/sys.c
+++ b/rdma/sys.c
@@ -51,7 +51,8 @@ static int sys_show_parse_cb(const struct nlmsghdr *nlh, void *data)
 	if (tb[RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK])
 		cof = mnl_attr_get_u8(tb[RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK]);
 
-	print_on_off(PRINT_ANY, "copy-on-fork", "copy-on-fork %s\n", cof);
+	print_on_off(PRINT_ANY, "copy-on-fork", "copy-on-fork %s", cof);
+	print_nl();
 
 	return MNL_CB_OK;
 }
diff --git a/rdma/utils.c b/rdma/utils.c
index f332b2602..aeb627be7 100644
--- a/rdma/utils.c
+++ b/rdma/utils.c
@@ -774,7 +774,7 @@ struct dev_map *dev_map_lookup(struct rd *rd, bool allow_port_index)
 void newline(struct rd *rd)
 {
 	close_json_object();
-	print_string(PRINT_FP, NULL, "\n", NULL);
+	print_nl();
 }
 
 void newline_indent(struct rd *rd)