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vp-build/srcpkgs/procps/patches/ps_supgid_display.patch

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Description: 506303 ps displays supplementary groups
Author: Alfredo Esteban <aedelatorre@gmail.com>
Bug-Debian: http://bugs.debian.org/506303
Reviewed-by: Craig Small <csmall@debian.org>
--- a/proc/library.map
+++ b/proc/library.map
@@ -7,7 +7,7 @@
readproc; readtask; readproctab; readproctab2; look_up_our_self; escape_command;
escape_str; escape_strlist;
- openproc; closeproc; freeproc;
+ openproc; closeproc; freeproc; allocsupgrp; freesupgrp;
tty_to_dev; dev_to_tty; open_psdb_message; open_psdb; lookup_wchan;
display_version; procps_version; linux_version_code;
Hertz; smp_num_cpus; have_privs;
--- a/proc/readproc.c
+++ b/proc/readproc.c
@@ -20,6 +20,7 @@
#include <errno.h>
#include <stdarg.h>
#include <string.h>
+#include <limits.h>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
@@ -85,63 +86,68 @@
long Threads = 0;
long Tgid = 0;
long Pid = 0;
+ int hash = 0;
+ int isupgid = 0;
- static const unsigned char asso[] =
+ static const unsigned char asso[] =
{
- 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 61, 15, 61,
- 61, 61, 61, 61, 61, 61, 30, 3, 5, 5,
- 61, 5, 61, 8, 61, 61, 3, 61, 10, 61,
- 6, 61, 13, 0, 30, 25, 0, 61, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 3, 61, 13,
- 0, 0, 61, 30, 61, 25, 61, 61, 61, 0,
- 61, 61, 61, 61, 5, 61, 0, 61, 61, 61,
- 0, 61, 61, 61, 61, 61, 61, 61
+ 66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
+ 66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
+ 66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
+ 66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
+ 66, 66, 66, 66, 66, 66, 66, 66, 66, 66,
+ 66, 66, 66, 66, 66, 66, 66, 66, 0, 66,
+ 66, 66, 66, 66, 66, 66, 3, 30, 20, 30,
+ 66, 25, 66, 20, 66, 66, 30, 66, 25, 66,
+ 0, 66, 8, 10, 3, 18, 5, 66, 66, 66,
+ 66, 66, 66, 66, 66, 66, 66, 3, 66, 10,
+ 0, 0, 66, 25, 66, 5, 66, 66, 66, 25,
+ 66, 5, 66, 66, 0, 66, 0, 0, 66, 66,
+ 25, 66, 66, 66, 66, 66, 66, 66
};
static const status_table_struct table[] = {
- F(VmStk)
+ F(Pid)
NUL NUL
- F(State)
+ F(Threads)
+ NUL
+ F(PPid)
+ NUL NUL
+ F(Tgid)
NUL
- F(VmExe)
F(ShdPnd)
+ NUL NUL
+ F(State)
NUL
- F(VmData)
+ F(VmStk)
+ NUL NUL
+ F(Uid)
NUL
- F(Name)
+ F(VmSize)
NUL NUL
F(VmRSS)
- NUL NUL
- F(VmLck)
- NUL NUL NUL
+ NUL
F(Gid)
- F(Pid)
- NUL NUL NUL
- F(VmSize)
NUL NUL
- F(VmLib)
- NUL NUL
- F(PPid)
- NUL
- F(SigCgt)
+ F(VmData)
NUL
- F(Threads)
+ F(Groups)
+ NUL NUL NUL NUL
F(SigPnd)
+ NUL NUL
+ F(SigBlk)
NUL
+ F(VmLib)
+ NUL NUL NUL NUL
+ F(VmLck)
+ NUL NUL NUL NUL
+ F(Name)
+ NUL NUL NUL NUL
F(SigIgn)
- NUL
- F(Uid)
- NUL NUL NUL NUL NUL NUL NUL NUL NUL
- NUL NUL NUL NUL NUL
- F(Tgid)
NUL NUL NUL NUL
- F(SigBlk)
- NUL NUL NUL
+ F(VmExe)
+ NUL NUL NUL NUL
+ F(SigCgt)
};
#undef F
@@ -157,6 +163,9 @@
P->vm_exe = 0;
P->vm_lib = 0;
P->nlwp = 0;
+ P->nsupgid = 0;
+ P->supgid = NULL;
+ P->supgrp = NULL;
P->signal[0] = '\0'; // so we can detect it as missing for very old kernels
goto base;
@@ -173,7 +182,9 @@
// examine a field name (hash and compare)
base:
if(unlikely(!*S)) break;
- entry = table[63 & (asso[(int)S[3]] + asso[(int)S[2]] + asso[(int)S[0]])];
+ hash = asso[S[3]] + asso[S[2]] + asso[S[0]];
+ if (hash > 65) continue;
+ entry = table[hash];
colon = strchr(S, ':');
if(unlikely(!colon)) break;
if(unlikely(colon[1]!='\t')) break;
@@ -271,6 +282,21 @@
P->sgid = strtol(S,&S,10);
P->fgid = strtol(S,&S,10);
continue;
+ case_Groups:
+ isupgid = 0;
+ if (*S != '\n'){ // Is there any supplementary group ?
+ P->supgid = (int *) xmalloc(0x0004 * sizeof(int));
+ int vctsize = 0x0004;
+ while (S[1] != '\n' && isupgid<INT_MAX){ // There is one blank before '\n'
+ if (isupgid == vctsize){
+ vctsize *= 2;
+ P->supgid = (int *)xrealloc(P->supgid,vctsize * sizeof(int));
+ }
+ P->supgid[isupgid++] = strtol(S,&S,10);
+ P->nsupgid++;
+ }
+ }
+ continue;
case_VmData:
P->vm_data = strtol(S,&S,10);
continue;
@@ -589,6 +615,13 @@
}
}
+ if (flags & PROC_FILLSUPGRP && p->nsupgid > 0){
+ allocsupgrp(p);
+ int i;
+ for (i=0; i < p->nsupgid; i++)
+ memcpy(p->supgrp[i], group_from_gid(p->supgid[i]), P_G_SZ);
+ }
+
if ((flags & PROC_FILLCOM) || (flags & PROC_FILLARG)) /* read+parse /proc/#/cmdline */
p->cmdline = file2strvec(path, "cmdline");
else
@@ -683,6 +716,13 @@
}
}
+ if (flags & PROC_FILLSUPGRP && t->nsupgid > 0){
+ allocsupgrp(t);
+ int i;
+ for (i=0; i < t->nsupgid; i++)
+ memcpy(t->supgrp[i], group_from_gid(t->supgid[i]), P_G_SZ);
+ }
+
#if 0
if ((flags & PROC_FILLCOM) || (flags & PROC_FILLARG)) /* read+parse /proc/#/cmdline */
t->cmdline = file2strvec(path, "cmdline");
@@ -897,6 +937,23 @@
}
}
+// allocate memory for supgrp
+void allocsupgrp(proc_t *p) {
+ if (!p || p->nsupgid == 0) return;
+ p->supgrp = (char**)xmalloc(p->nsupgid * sizeof(char*));
+ int i;
+ for (i=0; i<p->nsupgid; i++)
+ p->supgrp[i] = (char*)xmalloc(P_G_SZ * sizeof(char));
+}
+
+// free memory allocated for supgrp
+void freesupgrp(proc_t *p) {
+ int i;
+ for (i=0; i<p->nsupgid; i++)
+ if (p->supgrp[i]) free(p->supgrp[i]);
+ free(p->supgrp);
+}
+
// deallocate the space allocated by readproc if the passed rbuf was NULL
void freeproc(proc_t* p) {
if (!p) /* in case p is NULL */
--- a/proc/readproc.h
+++ b/proc/readproc.h
@@ -122,6 +122,7 @@
egroup[P_G_SZ], // status effective group name
sgroup[P_G_SZ], // status saved group name
fgroup[P_G_SZ], // status filesystem group name
+ **supgrp, // status supplementary groups
cmd[16]; // stat,status basename of executable file in call to exec(2)
struct proc_t
*ring, // n/a thread group ring
@@ -137,6 +138,8 @@
suid, sgid, // status saved
fuid, fgid, // status fs (used for file access only)
tpgid, // stat terminal process group id
+ nsupgid, // status number of supplementary groups
+ *supgid, // status supplementary gid's
exit_signal, // stat might not be SIGCHLD
processor; // stat current (or most recent?) CPU
char **cgroup; // cgroup current cgroup, looks like a classic filepath
@@ -198,6 +201,12 @@
// clean-up open files, etc from the openproc()
extern void closeproc(PROCTAB* PT);
+// allocate memory for supgrp
+extern void allocsupgrp(proc_t *p);
+
+// free memory allocated for supgrp
+extern void freesupgrp(proc_t *p);
+
// retrieve the next process matching the criteria set by the openproc()
extern proc_t* readproc(PROCTAB *restrict const PT, proc_t *restrict p);
extern proc_t* readtask(PROCTAB *restrict const PT, const proc_t *restrict const p, proc_t *restrict t);
@@ -238,6 +247,7 @@
#define PROC_FILLWCHAN 0x0080 // look up WCHAN name
#define PROC_FILLARG 0x0100 // alloc and fill in `cmdline'
#define PROC_FILLCGROUP 0x0200 // alloc and fill in `cgroup`
+#define PROC_FILLSUPGRP 0x0400 // resolve supplementary group id number -> group name
#define PROC_LOOSE_TASKS 0x2000 // threat threads as if they were processes
--- a/ps/display.c
+++ b/ps/display.c
@@ -342,6 +342,8 @@
if(buf.cmdline) free((void*)*buf.cmdline); // ought to reuse
if(buf.environ) free((void*)*buf.environ); // ought to reuse
if(buf.cgroup) free((void*)*buf.cgroup);
+ if(buf.nsupgid > 0 && buf.supgid) free(buf.supgid);
+ if((ptp->flags & PROC_FILLSUPGRP) && buf.nsupgid>0 && buf.supgrp) freesupgrp(&buf);
}
break;
case TF_show_proc|TF_loose_tasks: // H option
@@ -349,12 +351,16 @@
proc_t buf2;
// must still have the process allocated
while(readtask(ptp,&buf,&buf2)){
- if(!want_this_proc(&buf)) continue;
- show_one_proc(&buf2, task_format_list);
+ if(want_this_proc(&buf)) show_one_proc(&buf2, task_format_list);
+ if(buf2.nsupgid > 0 && buf2.supgid && buf.supgid!=buf2.supgid) free(buf2.supgid);
+ if((ptp->flags & PROC_FILLSUPGRP) && buf2.nsupgid>0 && buf2.supgrp && buf.supgrp!=buf2.supgrp)
+ freesupgrp(&buf2);
}
if(buf.cmdline) free((void*)*buf.cmdline); // ought to reuse
if(buf.environ) free((void*)*buf.environ); // ought to reuse
if(buf.cgroup) free((void*)*buf.cgroup);
+ if(buf.nsupgid > 0 && buf.supgid) free(buf.supgid);
+ if((ptp->flags & PROC_FILLSUPGRP) && buf.nsupgid>0 && buf.supgrp) freesupgrp(&buf);
}
break;
case TF_show_proc|TF_show_task: // m and -m options
@@ -363,11 +369,18 @@
proc_t buf2;
show_one_proc(&buf, proc_format_list);
// must still have the process allocated
- while(readtask(ptp,&buf,&buf2)) show_one_proc(&buf2, task_format_list);
+ while(readtask(ptp,&buf,&buf2)){
+ show_one_proc(&buf2, task_format_list);
+ if(buf2.nsupgid > 0 && buf2.supgid && buf.supgid!=buf2.supgid) free(buf2.supgid);
+ if(ptp->flags & PROC_FILLSUPGRP && buf2.nsupgid>0 && buf2.supgrp && buf.supgrp!=buf2.supgrp)
+ freesupgrp(&buf2);
+ }
}
if(buf.cmdline) free((void*)*buf.cmdline); // ought to reuse
if(buf.environ) free((void*)*buf.environ); // ought to reuse
if(buf.cgroup) free((void*)*buf.cgroup);
+ if(buf.nsupgid > 0 && buf.supgid) free(buf.supgid);
+ if((ptp->flags & PROC_FILLSUPGRP) && buf.nsupgid>0 && buf.supgrp) freesupgrp(&buf);
}
break;
case TF_show_task: // -L and -T options
@@ -375,11 +388,18 @@
if(want_this_proc(&buf)){
proc_t buf2;
// must still have the process allocated
- while(readtask(ptp,&buf,&buf2)) show_one_proc(&buf2, task_format_list);
+ while(readtask(ptp,&buf,&buf2)){
+ show_one_proc(&buf2, task_format_list);
+ if(buf2.nsupgid > 0 && buf2.supgid && buf.supgid!=buf2.supgid) free(buf2.supgid);
+ if(ptp->flags & PROC_FILLSUPGRP && buf2.nsupgid>0 && buf2.supgrp && buf.supgrp!=buf2.supgrp)
+ freesupgrp(&buf2);
+ }
}
if(buf.cmdline) free((void*)*buf.cmdline); // ought to reuse
if(buf.environ) free((void*)*buf.environ); // ought to reuse
if(buf.cgroup) free((void*)*buf.cgroup);
+ if(buf.nsupgid > 0 && buf.supgid) free(buf.supgid);
+ if((ptp->flags & PROC_FILLSUPGRP) && buf.nsupgid>0 && buf.supgrp) freesupgrp(&buf);
}
break;
}
@@ -542,6 +562,12 @@
qsort(processes, n, sizeof(proc_t*), compare_two_procs);
if(forest_type) show_forest(n);
else show_proc_array(ptp,n);
+ int i;
+ for (i=0; i<n; i++)
+ if (processes[i]->nsupgid>0 && processes[i]->supgid) free(processes[i]->supgid);
+ if (ptp->flags & PROC_FILLSUPGRP)
+ for (i=0; i<n; i++)
+ if (processes[i]->nsupgid>0 && processes[i]->supgrp) freesupgrp(processes[i]);
closeproc(ptp);
}
--- a/ps/output.c
+++ b/ps/output.c
@@ -211,6 +211,32 @@
return 0;
}
+static int sr_supgid(const proc_t* P, const proc_t* Q){
+ int i;
+ for (i = 0; i < INT_MAX; i++){
+ if (P->nsupgid == i){
+ if (Q->nsupgid == i) return 0;
+ else return -1;
+ }
+ if (Q->nsupgid == i) return 1;
+ if (P->supgid[i] != Q->supgid[i]) return P->supgid[i] - Q->supgid[i];
+ }
+ return 0;
+}
+
+static int sr_supgrp(const proc_t* P, const proc_t* Q){
+ int i;
+ for (i = 0; i < INT_MAX; i++){
+ if (P->nsupgid == i){
+ if (Q->nsupgid == i) return 0;
+ else return -1;
+ }
+ if (Q->nsupgid == i) return 1;
+ int cmp = strncmp(P->supgrp[i],Q->supgrp[i],P_G_SZ);
+ if (cmp != 0) return cmp;
+ }
+ return 0;
+}
/***************************************************************************/
/************ Lots of format functions, starting with the NOP **************/
@@ -1062,6 +1088,24 @@
return snprintf(outbuf, COLWID, "%d", pp->fuid);
}
+static int pr_supgid(char *restrict const outbuf, const proc_t *restrict const pp){
+ if (pp->nsupgid == 0) return snprintf(outbuf,2,"-");
+ int rest = COLWID;
+ int i = 0;
+ for (i = 0; i < pp->nsupgid && rest > 5; i++)
+ rest-= snprintf(outbuf+COLWID-rest, rest, "%d ", pp->supgid[i]);
+ return COLWID-rest;
+}
+
+static int pr_supgrp(char *restrict const outbuf, const proc_t *restrict const pp){
+ if (pp->nsupgid == 0) return snprintf(outbuf,2,"-");
+ int rest = COLWID;
+ int i = 0;
+ for (i = 0; i < pp->nsupgid && rest > sizeof( pp->supgrp[i] ) + 1; i++)
+ rest-= snprintf(outbuf+COLWID-rest, rest, "%s ", pp->supgrp[i]);
+ return COLWID-rest;
+}
+
// The Open Group Base Specifications Issue 6 (IEEE Std 1003.1, 2004 Edition)
// requires that user and group names print as decimal numbers if there is
// not enough room in the column, so tough luck if you don't like it.
@@ -1293,6 +1337,7 @@
#define USR PROC_FILLUSR /* uid_t -> user names */
#define GRP PROC_FILLGRP /* gid_t -> group names */
#define WCH PROC_FILLWCHAN /* do WCHAN lookup */
+#define SUPGRP PROC_FILLSUPGRP /* supgid -> supplementary group names */
#define CGRP PROC_FILLCGROUP /* read cgroup */
/* TODO
@@ -1490,6 +1535,8 @@
{"status", "STATUS", pr_nop, sr_nop, 6, 0, DEC, AN|RIGHT},
{"stime", "STIME", pr_stime, sr_stime, 5, 0, XXX, ET|RIGHT}, /* was 6 wide */
{"suid", "SUID", pr_suid, sr_suid, 5, 0, LNx, ET|RIGHT},
+{"supgid", "SUPGID", pr_supgid, sr_supgid, 27, 0, LNX, PO|UNLIMITED},
+{"supgrp", "SUPGRP", pr_supgrp, sr_supgrp, 27, SUPGRP, LNX, PO|UNLIMITED},
{"suser", "SUSER", pr_suser, sr_suser, 8, USR, LNx, ET|USER},
{"svgid", "SVGID", pr_sgid, sr_sgid, 5, 0, XXX, ET|RIGHT},
{"svgroup", "SVGROUP", pr_sgroup, sr_sgroup, 8, GRP, LNX, ET|USER},
--- a/ps/ps.1
+++ b/ps/ps.1
@@ -1303,6 +1303,16 @@
saved user\ ID. (alias\ \fBsvuid\fR).
T}
+supgid SUPGID T{
+gid of supplementary groups, see
+.BR getgroups (2).
+T}
+
+supgrp SUPGRP T{
+names of supplementary groups, see
+.BR getgroups (2).
+T}
+
suser SUSER T{
saved user name. This will be the textual user\ ID,
if\ it can be obtained and the field width permits,
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