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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2015-08-02 14:22:10 -0400
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-04-04 22:41:49 -0400
commit4f9a91055ce83be9b6a81bdeab6d360f13ff897a (patch)
tree7a2e7ea073c8fe24d41c121b977aa16fa70cef96 /src/shared
parent897d2029235b39c06d41ea9fbb1036ccdba0e811 (diff)
systemctl: add --value option
With this option, systemctl will only print the rhs in show: $ systemctl show -p Wants,After systemd-journald --value systemd-journald.socket ... systemd-journald-dev-log.socket ... This is useful in scripts, because the need to call awk or similar is removed.
Diffstat (limited to 'src/shared')
-rw-r--r--src/shared/bus-util.c42
-rw-r--r--src/shared/bus-util.h2
2 files changed, 27 insertions, 17 deletions
diff --git a/src/shared/bus-util.c b/src/shared/bus-util.c
index b102a79da8..85f8280773 100644
--- a/src/shared/bus-util.c
+++ b/src/shared/bus-util.c
@@ -712,7 +712,15 @@ int bus_connect_user_systemd(sd_bus **_bus) {
return 0;
}
-int bus_print_property(const char *name, sd_bus_message *property, bool all) {
+#define print_property(name, fmt, ...) \
+ do { \
+ if (value) \
+ printf(fmt "\n", __VA_ARGS__); \
+ else \
+ printf("%s=" fmt "\n", name, __VA_ARGS__); \
+ } while(0)
+
+int bus_print_property(const char *name, sd_bus_message *property, bool value, bool all) {
char type;
const char *contents;
int r;
@@ -740,7 +748,7 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (!escaped)
return -ENOMEM;
- printf("%s=%s\n", name, escaped);
+ print_property(name, "%s", escaped);
}
return 1;
@@ -753,7 +761,7 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (r < 0)
return r;
- printf("%s=%s\n", name, yes_no(b));
+ print_property(name, "%s", yes_no(b));
return 1;
}
@@ -773,14 +781,14 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
t = format_timestamp(timestamp, sizeof(timestamp), u);
if (t || all)
- printf("%s=%s\n", name, strempty(t));
+ print_property(name, "%s", strempty(t));
} else if (strstr(name, "USec")) {
char timespan[FORMAT_TIMESPAN_MAX];
- printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u, 0));
+ print_property(name, "%s", format_timespan(timespan, sizeof(timespan), u, 0));
} else
- printf("%s=%llu\n", name, (unsigned long long) u);
+ print_property(name, "%"PRIu64, u);
return 1;
}
@@ -792,7 +800,7 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (r < 0)
return r;
- printf("%s=%lld\n", name, (long long) i);
+ print_property(name, "%"PRIi64, i);
return 1;
}
@@ -805,9 +813,9 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
return r;
if (strstr(name, "UMask") || strstr(name, "Mode"))
- printf("%s=%04o\n", name, u);
+ print_property(name, "%04o", u);
else
- printf("%s=%u\n", name, (unsigned) u);
+ print_property(name, "%"PRIu32, u);
return 1;
}
@@ -819,7 +827,7 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (r < 0)
return r;
- printf("%s=%i\n", name, (int) i);
+ print_property(name, "%"PRIi32, i);
return 1;
}
@@ -830,7 +838,7 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (r < 0)
return r;
- printf("%s=%g\n", name, d);
+ print_property(name, "%g", d);
return 1;
}
@@ -846,7 +854,7 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
while ((r = sd_bus_message_read_basic(property, SD_BUS_TYPE_STRING, &str)) > 0) {
_cleanup_free_ char *escaped = NULL;
- if (first)
+ if (first && !value)
printf("%s=", name);
escaped = xescape(str, "\n ");
@@ -860,7 +868,7 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (r < 0)
return r;
- if (first && all)
+ if (first && all && !value)
printf("%s=", name);
if (!first || all)
puts("");
@@ -882,7 +890,8 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (all || n > 0) {
unsigned int i;
- printf("%s=", name);
+ if (!value)
+ printf("%s=", name);
for (i = 0; i < n; i++)
printf("%02x", u[i]);
@@ -903,7 +912,8 @@ int bus_print_property(const char *name, sd_bus_message *property, bool all) {
if (all || n > 0) {
unsigned int i;
- printf("%s=", name);
+ if (!value)
+ printf("%s=", name);
for (i = 0; i < n; i++)
printf("%08x", u[i]);
@@ -960,7 +970,7 @@ int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, ch
if (r < 0)
return r;
- r = bus_print_property(name, reply, all);
+ r = bus_print_property(name, reply, false, all);
if (r < 0)
return r;
if (r == 0) {
diff --git a/src/shared/bus-util.h b/src/shared/bus-util.h
index fcda1b2c6c..65eca9ac56 100644
--- a/src/shared/bus-util.h
+++ b/src/shared/bus-util.h
@@ -78,7 +78,7 @@ int bus_connect_user_systemd(sd_bus **_bus);
int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **bus);
int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus);
-int bus_print_property(const char *name, sd_bus_message *property, bool all);
+int bus_print_property(const char *name, sd_bus_message *property, bool value, bool all);
int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all);
int bus_property_get_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);