Bug Summary

File:daq/rfarm/manager/tools/nodedump.cc
Warning:line 35, column 21
The parameter must not be null

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -O3 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name nodedump.cc -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/data/b2soft/buildbot/development/build -fcoverage-compilation-dir=/data/b2soft/buildbot/development/build -resource-dir /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/lib/clang/21 -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/include/c++ -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/include/c++/x86_64-redhat-linux -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/include/c++/backward -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/include -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/include/python3.12 -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/include/CLHEP -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/include/Geant4 -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/include -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/include/root -isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/include/belle_legacy -I include/ -D _PACKAGE_="daq" -D G4UI_USE_TCSH -D RaveDllExport= -D HAS_SQLITE -D HAS_CALLGRIND -I include -I /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/include/libxml2 -internal-isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/bin/../lib64/gcc/x86_64-redhat-linux/15.2.0/../../../../include/c++ -internal-isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/bin/../lib64/gcc/x86_64-redhat-linux/15.2.0/../../../../include/c++/x86_64-redhat-linux -internal-isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/bin/../lib64/gcc/x86_64-redhat-linux/15.2.0/../../../../include/c++/backward -internal-isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /cvmfs/belle.cern.ch/el9/externals/v02-04-00/Linux_x86_64/common/bin/../lib64/gcc/x86_64-redhat-linux/15.2.0/../../../../x86_64-redhat-linux/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wno-missing-braces -Wno-unused-command-line-argument -std=c++20 -fdeprecated-macro -ferror-limit 19 -fgnuc-version=4.2.1 -fno-implicit-modules -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -vectorize-loops -vectorize-slp -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /scan_build/2026-05-31-004316-385593-1 -x c++ daq/rfarm/manager/tools/nodedump.cc
1/**************************************************************************
2 * basf2 (Belle II Analysis Software Framework) *
3 * Author: The Belle II Collaboration *
4 * *
5 * See git log for contributors and copyright holders. *
6 * This file is licensed under LGPL-3.0, see LICENSE.md. *
7 **************************************************************************/
8
9//#define DESY
10
11#include <stdio.h>
12#include <stdlib.h>
13#include <unistd.h>
14#include <string.h>
15
16#include "daq/rfarm/manager/RFConf.h"
17#include "daq/rfarm/manager/RFSharedMem.h"
18#include "daq/rfarm/manager/RFFlowStat.h"
19
20using namespace std;
21using namespace Belle2;
22
23int main(int argc, char** argv)
24{
25
26 if (argc < 2) {
1
Assuming 'argc' is >= 2
→
2
←
Taking false branch
→
27 printf("Usage : nodedump unitname nodename\n");
28 return -1;
29 }
30
31 char host[256];
32 gethostname(host, sizeof(host));
33
34 char* confdir = getenv("RFARM_CONFDIR");
3
←
Assuming the environment variable does not exist
→
4
←
'confdir' initialized here
→
35 string confpath = string(confdir) + "/" + string(argv[1]) + ".conf";
5
←
The parameter must not be null
36
37 RFConf conf(confpath.c_str());
38
39 // char* conffile = getenv("RFARM_CONFFILE");
40 // RFConf conf(conffile);
41
42 char nodename[512];
43 int nid = 0;
44 int idlist[256] = {};
45 char item[256][7];
46
47 if (argc >= 3) {
48 if (strstr(argv[2], "dist") != NULL__null) { // distributor
49 strcpy(nodename, "distributor");
50 int nnodes = conf.getconfi("processor", "nnodes");
51 idlist[0] = RF_INPUT_ID51;
52 strcpy(item[0], "IN ");
53 for (int i = 0; i < nnodes; i++) {
54 idlist[i + 1] = i;
55 sprintf(item[i + 1], "OUT%2.2d ", i);
56 }
57 nid = nnodes + 1;
58 } else if (strstr(argv[2], "col") != NULL__null) { // collector
59 strcpy(nodename, "collector");
60 int nnodes = conf.getconfi("processor", "nnodes");
61 for (int i = 0; i < nnodes; i++) {
62 idlist[i] = i;
63 sprintf(item[i], "IN%2.2d ", i);
64 }
65 idlist[nnodes] = RF_OUTPUT_ID52;
66 strcpy(item[nnodes], "OUT ");
67 nid = nnodes + 1;
68 } else if (strstr(argv[2], "roi") != NULL__null) { // collector
69 strcpy(nodename, "roisender");
70 idlist[0] = RF_ROI_ID53;
71 strcpy(item[0], "OUT ");
72 nid = 1;
73 }
74 } else {
75#ifdef DESY
76 // Special treatment for DESY test nodes!!
77 strcpy(nodename, "evp_");
78 char hostnamebuf[256];
79 gethostname(hostnamebuf, sizeof(hostnamebuf));
80 strcat(&nodename[4], &hostnamebuf[6]);
81 int lend = strlen(nodename);
82 nodename[lend + 1] = (char)0;
83 nodename[lend] = nodename[lend - 1];
84 strncpy(&nodename[lend - 1], "0", 1);
85 // End of DESY special treatment
86#else
87 sprintf(nodename, "evp_%s", host);
88#endif
89 idlist[0] = 0;
90 strcpy(item[0], "IN ");
91 idlist[1] = 1;
92 strcpy(item[1], "OUT ");
93 nid = 2;
94 }
95 string shmname = string(conf.getconf("system", "unitname")) + ":" +
96 string(nodename);
97 RFFlowStat flow((char*)shmname.c_str());
98
99 printf("nodename = %s, nid = %d\n", nodename, nid);
100 printf("id range : %d to %d\n", idlist[0], idlist[nid - 1]);
101 // printf ( "cell nevt nque flowrate avesize evtrate elapsed\n" );
102 // 123456789012345678901234567890123456789012345678901234567890
103 printf(" At : Nevent Nqueue Flow(MB/s) Size(KB) Rate(Hz)\n");
104 for (int i = 0; i < nid; i++) {
105 RfShm_Cell& cell = flow.getinfo(idlist[i]);
106 // printf ( "cell %2.2d : %8d %4d %7.2f %7.2f %7.2f\n",
107 // idlist[i],
108 // cell.nevent, cell.nqueue, cell.flowrate, cell.avesize,
109 // cell.evtrate );
110 printf("%s : %10d %10d %10.2f %10.2f %10.2f\n",
111 item[i],
112 cell.nevent, cell.nqueue, cell.flowrate, cell.avesize,
113 cell.evtrate);
114 }
115}
116
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