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authorDenis Vlasenko2007-04-19 14:46:14 +0000
committerDenis Vlasenko2007-04-19 14:46:14 +0000
commit516a0ca2dc92d9ea103535863102cc5425fe648e (patch)
tree4685bf59c11f898fad44f6e38cde3d16e43c723d /procps/ps.c
parentc34d35557b0eeb1971b65f7fb10b814295d61734 (diff)
downloadbusybox-516a0ca2dc92d9ea103535863102cc5425fe648e.zip
busybox-516a0ca2dc92d9ea103535863102cc5425fe648e.tar.gz
ps: add -o tty and -o rss support
1373 14 24 1411 583 busybox.t1/procps/ps.o 1462 14 24 1500 5dc busybox.t2/procps/ps.o
Diffstat (limited to 'procps/ps.c')
-rw-r--r--procps/ps.c79
1 files changed, 45 insertions, 34 deletions
diff --git a/procps/ps.c b/procps/ps.c
index f8f5c1a..0c9b71e 100644
--- a/procps/ps.c
+++ b/procps/ps.c
@@ -29,83 +29,90 @@ static void func_args(char *buf, int size, const procps_status_t *ps)
if (ps->cmd)
safe_strncpy(buf, ps->cmd, size+1);
else if (size >= 2)
- snprintf(buf, size+1, "[%.*s]", size-2, ps->comm);
+ sprintf(buf, "[%.*s]", size-2, ps->comm);
}
static void func_pid(char *buf, int size, const procps_status_t *ps)
{
- snprintf(buf, size+1, "%*u", size, ps->pid);
+ sprintf(buf, "%*u", size, ps->pid);
}
static void func_ppid(char *buf, int size, const procps_status_t *ps)
{
- snprintf(buf, size+1, "%*u", size, ps->ppid);
+ sprintf(buf, "%*u", size, ps->ppid);
}
static void func_pgid(char *buf, int size, const procps_status_t *ps)
{
- snprintf(buf, size+1, "%*u", size, ps->pgid);
+ sprintf(buf, "%*u", size, ps->pgid);
}
static void func_vsz(char *buf, int size, const procps_status_t *ps)
{
char buf5[5];
smart_ulltoa5( ((unsigned long long)ps->vsz) << 10, buf5);
- snprintf(buf, size+1, "%.*s", size, buf5);
+ sprintf(buf, "%.*s", size, buf5);
}
+static void func_rss(char *buf, int size, const procps_status_t *ps)
+{
+ char buf5[5];
+ smart_ulltoa5( ((unsigned long long)ps->rss) << 10, buf5);
+ sprintf(buf, "%.*s", size, buf5);
+}
+
+static void func_tty(char *buf, int size, const procps_status_t *ps)
+{
+ safe_strncpy(buf, ps->tty_str, size+1);
+}
/*
-void func_nice(char *buf, int size, const procps_status_t *ps)
+static void func_nice(char *buf, int size, const procps_status_t *ps)
{
ps->???
}
-void func_etime(char *buf, int size, const procps_status_t *ps)
+static void func_etime(char *buf, int size, const procps_status_t *ps)
{
elapled time [[dd-]hh:]mm:ss
}
-void func_time(char *buf, int size, const procps_status_t *ps)
+static void func_time(char *buf, int size, const procps_status_t *ps)
{
cumulative time [[dd-]hh:]mm:ss
}
-void func_pcpu(char *buf, int size, const procps_status_t *ps)
-{
-}
-
-void func_tty(char *buf, int size, const procps_status_t *ps)
+static void func_pcpu(char *buf, int size, const procps_status_t *ps)
{
}
*/
typedef struct {
- char name[8];
+ uint16_t width;
+ char name[6];
const char *header;
void (*f)(char *buf, int size, const procps_status_t *ps);
int ps_flags;
- int width;
} ps_out_t;
static const ps_out_t out_spec[] = {
// Mandated by POSIX:
- { "user" ,"USER" ,func_user ,PSSCAN_UIDGID,8 },
- { "comm" ,"COMMAND",func_comm ,PSSCAN_COMM ,16 },
- { "args" ,"COMMAND",func_args ,PSSCAN_CMD|PSSCAN_COMM,256 },
- { "pid" ,"PID" ,func_pid ,PSSCAN_PID ,5 },
- { "ppid" ,"PPID" ,func_ppid ,PSSCAN_PPID ,5 },
- { "pgid" ,"PGID" ,func_pgid ,PSSCAN_PGID ,5 },
-// { "etime" ,"ELAPSED",func_etime ,PSSCAN_ ,sizeof("ELAPSED")-1 },
-// { "group" ,"GROUP" ,func_group ,PSSCAN_UIDGID,sizeof("GROUP" )-1 },
-// { "nice" ,"NI" ,func_nice ,PSSCAN_ ,sizeof("NI" )-1 },
-// { "pcpu" ,"%CPU" ,func_pcpu ,PSSCAN_ ,sizeof("%CPU" )-1 },
-// { "rgroup","RGROUP" ,func_rgroup,PSSCAN_UIDGID,sizeof("RGROUP" )-1 },
-// { "ruser" ,"RUSER" ,func_ruser ,PSSCAN_UIDGID,sizeof("RUSER" )-1 },
-// { "time" ,"TIME" ,func_time ,PSSCAN_ ,sizeof("TIME" )-1 },
-// { "tty" ,"TT" ,func_tty ,PSSCAN_ ,sizeof("TT" )-1 },
- { "vsz" ,"VSZ" ,func_vsz ,PSSCAN_VSZ ,4 },
-// Not mandated by POSIX:
-// { "rss" ,"RSS" ,func_rss ,PSSCAN_RSS ,4 },
+ { 8 , "user" ,"USER" ,func_user ,PSSCAN_UIDGID },
+ { 16 , "comm" ,"COMMAND",func_comm ,PSSCAN_COMM },
+ { 256 , "args" ,"COMMAND",func_args ,PSSCAN_CMD|PSSCAN_COMM },
+ { 5 , "pid" ,"PID" ,func_pid ,PSSCAN_PID },
+ { 5 , "ppid" ,"PPID" ,func_ppid ,PSSCAN_PPID },
+ { 5 , "pgid" ,"PGID" ,func_pgid ,PSSCAN_PGID },
+// { sizeof("ELAPSED")-1, "etime" ,"ELAPSED",func_etime ,PSSCAN_ },
+// { sizeof("GROUP" )-1, "group" ,"GROUP" ,func_group ,PSSCAN_UIDGID },
+// { sizeof("NI" )-1, "nice" ,"NI" ,func_nice ,PSSCAN_ },
+// { sizeof("%CPU" )-1, "pcpu" ,"%CPU" ,func_pcpu ,PSSCAN_ },
+// { sizeof("RGROUP" )-1, "rgroup","RGROUP" ,func_rgroup,PSSCAN_UIDGID },
+// { sizeof("RUSER" )-1, "ruser" ,"RUSER" ,func_ruser ,PSSCAN_UIDGID },
+// { sizeof("TIME" )-1, "time" ,"TIME" ,func_time ,PSSCAN_ },
+ { sizeof("TT" )-1, "tty" ,"TT" ,func_tty ,PSSCAN_TTY },
+ { 4 , "vsz" ,"VSZ" ,func_vsz ,PSSCAN_VSZ },
+// Not mandated by POSIX, but useful:
+ { 4 , "rss" ,"RSS" ,func_rss ,PSSCAN_RSS },
};
#define VEC_SIZE(v) ( sizeof(v) / sizeof((v)[0]) )
@@ -152,6 +159,8 @@ static void parse_o(char* opt)
}
break;
}
+ // opt points to last spec in comma separated list.
+ // This one can have =HEADER part.
new = new_out_t();
if (equal)
*equal = '\0';
@@ -190,9 +199,11 @@ static void format_header(void)
{
int i;
ps_out_t* op;
- char *p = buffer;
+ char *p;
+
if (!print_header)
return;
+ p = buffer;
i = 0;
if (out_cnt) {
while (1) {
@@ -248,7 +259,7 @@ int ps_main(int argc, char **argv)
// -f Generate a full listing
// -l Generate a long listing
// -o col1,col2,col3=header
- // Select which columns to distplay
+ // Select which columns to display
/* We allow (and ignore) most of the above. FIXME */
opt_complementary = "o::";
getopt32(argc, argv, "o:aAdefl", &opt_o);