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authorRob Landley <rob@landley.net>2016-01-18 15:45:56 -0600
committerRob Landley <rob@landley.net>2016-01-18 15:45:56 -0600
commit36b7cb7c3b856b1b17db4b9df44161e40f09e237 (patch)
treece349344a27f35ea7e288d5202df22b2d79ad9df /toys
parentba86864699997b0da780e15fd6be33c8a556e927 (diff)
downloadtoybox-36b7cb7c3b856b1b17db4b9df44161e40f09e237.tar.gz
Implement basic pkill plumbing, and fix FORCE_FLAGS on flag context switch.
Diffstat (limited to 'toys')
-rw-r--r--toys/posix/ps.c42
1 files changed, 37 insertions, 5 deletions
diff --git a/toys/posix/ps.c b/toys/posix/ps.c
index a7ba5b37..625f4377 100644
--- a/toys/posix/ps.c
+++ b/toys/posix/ps.c
@@ -40,7 +40,7 @@ USE_PS(NEWTOY(ps, "k(sort)*P(ppid)*aAdeflno*p(pid)*s*t*u*U*g*G*wZ[!ol][+Ae]", TO
USE_TTOP(NEWTOY(ttop, ">0d#=3n#<1mb", TOYFLAG_USR|TOYFLAG_BIN))
USE_IOTOP(NEWTOY(iotop, "Aabkoqp*u*d#n#", TOYFLAG_USR|TOYFLAG_BIN|TOYFLAG_STAYROOT|TOYFLAG_LOCALE))
USE_PGREP(NEWTOY(pgrep, "?cld:u*U*t*s*P*g*G*fnovxL:", TOYFLAG_USR|TOYFLAG_BIN))
-USE_PKILL(NEWTOY(pkill, "u*U*t*s*P*g*G*fnovxl:", TOYFLAG_USR|TOYFLAG_BIN))
+USE_PKILL(NEWTOY(pkill, "Vu*U*t*s*P*g*G*fnovxl:", TOYFLAG_USR|TOYFLAG_BIN))
config PS
bool "ps"
@@ -206,11 +206,12 @@ config PGKILL_COMMON
config PKILL
bool "pkill"
- default n
+ default y
help
usage: pkill [-l SIGNAL] [PATTERN]
-l SIGNAL to send
+ -V verbose
*/
#define FOR_ps
@@ -253,6 +254,7 @@ GLOBALS(
void *regexes;
int signal;
+ pid_t self;
} pgrep;
};
@@ -1256,6 +1258,10 @@ void iotop_main(void)
if (!(toys.optflags&FLAG_b)) tty_reset();
}
+// pkill's plumbing wrap's pgrep's and thus mostly takes place in pgrep's flag
+// context, so force pgrep's flags on even when building pkill standalone.
+// (All the pgrep/pkill functions drop out when building ps standalone.)
+#define FORCE_FLAGS
#define CLEANUP_iotop
#define FOR_pgrep
#include "generated/flags.h"
@@ -1271,6 +1277,9 @@ static void show_pgrep(struct carveup *tb)
struct regex_list *reg;
char *name = tb->str;
+ // Never match ourselves.
+ if (TT.pgrep.self == *tb->slot) return;
+
if (toys.optflags&FLAG_f) name += tb->offset[4];
if (TT.pgrep.regexes) {
@@ -1283,7 +1292,17 @@ static void show_pgrep(struct carveup *tb)
if (!reg) return;
}
- printf("%lld%s", *tb->slot, TT.pgrep.d ? TT.pgrep.d : "\n");
+ if (TT.pgrep.signal) {
+ if (kill(*tb->slot, TT.pgrep.signal)) {
+ char *s = num_to_sig(TT.pgrep.signal);
+
+ if (!s) sprintf(s = toybuf, "%d", TT.pgrep.signal);
+
+ perror_msg("%s->%lld", s, *tb->slot);
+ }
+ }
+ if (!TT.pgrep.signal || TT.tty)
+ printf("%lld%s", *tb->slot, TT.pgrep.d ? TT.pgrep.d : "\n");
}
void pgrep_main(void)
@@ -1291,6 +1310,12 @@ void pgrep_main(void)
char **arg;
struct regex_list *reg;
+ TT.pgrep.self = getpid();
+
+ // No signal names start with "L", so no need for "L: " parsing.
+ if (TT.pgrep.L && 1>(TT.pgrep.signal = sig_to_num(TT.pgrep.L)))
+ error_exit("bad -L '%s'", TT.pgrep.L);
+
comma_args(TT.pgrep.G, &TT.GG, "bad -G", parse_rest);
comma_args(TT.pgrep.g, &TT.gg, "bad -g", parse_rest);
comma_args(TT.pgrep.P, &TT.PP, "bad -P", parse_rest);
@@ -1303,8 +1328,10 @@ void pgrep_main(void)
!(toys.optflags&(FLAG_G|FLAG_g|FLAG_P|FLAG_s|FLAG_t|FLAG_U|FLAG_u)))
if (!toys.optc) help_exit("No PATTERN");
- if (toys.optflags&FLAG_f) TT.bits |= _PS_CMDLINE;
-
+printf("f=%llx in %llx\n", (long long)FLAG_v, (long long)toys.optflags);
+ if (toys.optflags&FLAG_f) {TT.bits |= _PS_CMDLINE;
+printf("got f\n");
+}
for (arg = toys.optargs; *arg; arg++) {
reg = xmalloc(sizeof(struct regex_list));
xregcomp(&reg->reg, *arg, REG_EXTENDED);
@@ -1318,8 +1345,13 @@ void pgrep_main(void)
if (TT.pgrep.d) xputc('\n');
}
+#define CLEANUP_pgrep
+#define FOR_pkill
+#include "generated/flags.h"
+
void pkill_main(void)
{
if (!TT.pgrep.L) TT.pgrep.signal = SIGTERM;
+ if (toys.optflags & FLAG_V) TT.tty = 1;
pgrep_main();
}