Bug Summary

File:src/usr.sbin/nsd/obj/conftest.c
Warning:line 93, column 1
Potential memory leak

Annotated Source Code

Press '?' to see keyboard shortcuts

clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name conftest.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -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 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/usr.sbin/nsd/obj -resource-dir /usr/local/lib/clang/13.0.0 -I . -I /usr/src/usr.sbin/nsd -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/usr.sbin/nsd/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c conftest.c
1/* confdefs.h */
2#define PACKAGE_NAME"NSD" "NSD"
3#define PACKAGE_TARNAME"nsd" "nsd"
4#define PACKAGE_VERSION"4.3.9" "4.3.9"
5#define PACKAGE_STRING"NSD 4.3.9" "NSD 4.3.9"
6#define PACKAGE_BUGREPORT"nsd-bugs@nlnetlabs.nl" "nsd-bugs@nlnetlabs.nl"
7#define PACKAGE_URL"" ""
8#define CONFCMDLINE"--prefix=/usr --localstatedir=/var --sysconfdir=/etc --with-ssl=/usr --with-user=_nsd --with-chroot=/var/nsd --with-configdir=/var/nsd/etc --with-pidfile= --with-zonesdir=/var/nsd/zones --with-dbfile= --with-zonelistfile=/var/nsd/db/zone.list --with-xfrdir=/var/nsd/run/xfr --with-xfrdfile=/var/nsd/run/xfrd.state --with-libevent=/usr --enable-ratelimit --enable-root-server" "--prefix=/usr --localstatedir=/var --sysconfdir=/etc --with-ssl=/usr --with-user=_nsd --with-chroot=/var/nsd --with-configdir=/var/nsd/etc --with-pidfile= --with-zonesdir=/var/nsd/zones --with-dbfile= --with-zonelistfile=/var/nsd/db/zone.list --with-xfrdir=/var/nsd/run/xfr --with-xfrdfile=/var/nsd/run/xfrd.state --with-libevent=/usr --enable-ratelimit --enable-root-server"
9#define STDC_HEADERS1 1
10#define HAVE_SYS_TYPES_H1 1
11#define HAVE_SYS_STAT_H1 1
12#define HAVE_STDLIB_H1 1
13#define HAVE_STRING_H1 1
14#define HAVE_MEMORY_H1 1
15#define HAVE_STRINGS_H1 1
16#define HAVE_INTTYPES_H1 1
17#define HAVE_STDINT_H1 1
18#define HAVE_UNISTD_H1 1
19#define __EXTENSIONS__1 1
20#define _ALL_SOURCE1 1
21#define _GNU_SOURCE1 1
22#define _POSIX_PTHREAD_SEMANTICS1 1
23#define _TANDEM_SOURCE1 1
24#define CONFIGDIR"/var/nsd/etc" "/var/nsd/etc"
25#define CONFIGFILE"/var/nsd/etc/nsd.conf" "/var/nsd/etc/nsd.conf"
26#define PIDFILE"" ""
27#define DBFILE"" ""
28#define ZONESDIR"/var/nsd/zones" "/var/nsd/zones"
29#define XFRDFILE"/var/nsd/run/xfrd.state" "/var/nsd/run/xfrd.state"
30#define ZONELISTFILE"/var/nsd/db/zone.list" "/var/nsd/db/zone.list"
31#define XFRDIR"/var/nsd/run/xfr" "/var/nsd/run/xfr"
32#define NSD_START_PATH"/usr/sbin/nsd" "/usr/sbin/nsd"
33#define CHROOTDIR"/var/nsd" "/var/nsd"
34#define USER"_nsd" "_nsd"
35#define YYTEXT_POINTER1 1
36#define HAVE_ATTR_FORMAT1 1
37#define HAVE_ATTR_UNUSED1 1
38#define HAVE_ATTR_WEAK1 1
39#define ATTR_WEAK__attribute__((weak)) __attribute__((weak))
40#define HAVE_ATTR_NORETURN1 1
41#define ATTR_NORETURN__attribute__((__noreturn__)) __attribute__((__noreturn__))
42#define HAVE_EVENT_H1 1
43#define HAVE_EVENT_BASE_FREE1 1
44#define HAVE_EVENT_BASE_ONCE1 1
45#define HAVE_EVENT_BASE_NEW1 1
46#define HAVE_EVENT_BASE_GET_METHOD1 1
47#define HAVE_SYS_WAIT_H1 1
48#define HAVE_TIME_H1 1
49#define HAVE_ARPA_INET_H1 1
50#define HAVE_SIGNAL_H1 1
51#define HAVE_STRING_H1 1
52#define HAVE_STRINGS_H1 1
53#define HAVE_FCNTL_H1 1
54#define HAVE_LIMITS_H1 1
55#define HAVE_NETINET_IN_H1 1
56#define HAVE_NETINET_TCP_H1 1
57#define HAVE_STDDEF_H1 1
58#define HAVE_SYS_PARAM_H1 1
59#define HAVE_SYS_SOCKET_H1 1
60#define HAVE_SYS_UN_H1 1
61#define HAVE_SYSLOG_H1 1
62#define HAVE_UNISTD_H1 1
63#define HAVE_SYS_SELECT_H1 1
64#define HAVE_STDARG_H1 1
65#define HAVE_STDINT_H1 1
66#define HAVE_NETDB_H1 1
67#define HAVE_GLOB_H1 1
68#define HAVE_GRP_H1 1
69#define HAVE_ENDIAN_H1 1
70#define HAVE_IFADDRS_H1 1
71#define STRPTIME_WORKS1 1
72#define NONBLOCKING_IS_BROKEN1 1
73#define HAVE_STRUCT_STAT_ST_MTIMENSEC1 1
74#define HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC1 1
75#define HAVE_STRUCT_SOCKADDR_UN_SUN_LEN1 1
76#define HAVE_UNISTD_H1 1
77#define HAVE_CHOWN1 1
78#define HAVE_FORK1 1
79#define HAVE_VFORK1 1
80#define HAVE_WORKING_VFORK1 1
81#define HAVE_WORKING_FORK1 1
82#define HAVE_STDLIB_H1 1
83/* end confdefs.h. */
84#if defined STDC_HEADERS1 || defined HAVE_STDLIB_H1
85# include <stdlib.h>
86#else
87char *malloc ();
88#endif
89
90int
91main ()
92{
93return ! malloc (0);
1
Memory is allocated
→
2
←
Assuming the condition is false
→
3
←
Potential memory leak
94 ;
95 return 0;
96}