cppcheck/test/cfg/posix.c

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// Test library configuration for posix.cfg
//
// Usage:
// $ cppcheck --check-library --library=posix --enable=information --error-exitcode=1 --inline-suppr --suppress=missingIncludeSystem test/cfg/posix.c
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// =>
// No warnings about bad library configuration, unmatched suppressions, etc. exitcode=0
//
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#include <stdio.h> // <- FILE
#include <dirent.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <netdb.h>
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#include <unistd.h>
#include <regex.h>
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void bufferAccessOutOfBounds(int fd) {
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char a[5];
read(fd,a,5);
// cppcheck-suppress bufferAccessOutOfBounds
read(fd,a,6);
write(fd,a,5);
// cppcheck-suppress bufferAccessOutOfBounds
write(fd,a,6);
recv(fd,a,5,0);
// cppcheck-suppress bufferAccessOutOfBounds
recv(fd,a,6,0);
recvfrom(fd,a,5,0,0x0,0x0);
// cppcheck-suppress bufferAccessOutOfBounds
recvfrom(fd,a,6,0,0x0,0x0);
send(fd,a,5,0);
// cppcheck-suppress bufferAccessOutOfBounds
send(fd,a,6,0);
sendto(fd,a,5,0,0x0,0x0);
// cppcheck-suppress bufferAccessOutOfBounds
sendto(fd,a,6,0,0x0,0x0);
// cppcheck-suppress constStatement
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0;
}
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void nullPointer(char *p) {
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isatty (0);
mkdir (p, 0);
getcwd (0, 0);
// cppcheck-suppress nullPointer
readdir (0);
}
void memleak_getaddrinfo() {
//TODO: nothing to report yet, see http://sourceforge.net/p/cppcheck/discussion/general/thread/d9737d5d/
struct addrinfo * res=NULL;
getaddrinfo("node", NULL, NULL, &res);
freeaddrinfo(res);
}
void memleak_mmap(int fd) {
// cppcheck-suppress unreadVariable
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void *addr = mmap(NULL, 255, PROT_NONE, MAP_PRIVATE, fd, 0);
// cppcheck-suppress memleak
}
/* TODO: add configuration for fdopen
void resourceLeak_fdopen(int fd) {
FILE *f = fdopen(fd, "r");
// cppcheck-suppress resourceLeak
}
*/
void resourceLeak_fdopendir(int fd) {
// cppcheck-suppress unreadVariable
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DIR* leak1 = fdopendir(fd);
// cppcheck-suppress resourceLeak
}
void resourceLeak_opendir(void) {
// cppcheck-suppress unreadVariable
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DIR* leak1 = opendir("abc");
// cppcheck-suppress resourceLeak
}
void resourceLeak_socket(void) {
// cppcheck-suppress unreadVariable
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int s = socket(AF_INET, SOCK_STREAM, 0);
// cppcheck-suppress resourceLeak
}
void noleak(int x, int y, int z) {
DIR *p1 = fdopendir(x); closedir(p1);
DIR *p2 = opendir("abc"); closedir(p2);
int s = socket(AF_INET,SOCK_STREAM,0); close(s);
/* TODO: add configuration for open/fdopen
// #2830
int fd = open("path", O_RDONLY);
FILE *f = fdopen(fd, "rt");
fclose(f);
*/
}
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// unused return value
void ignoredReturnValue(void *addr, int fd) {
// cppcheck-suppress ignoredReturnValue
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// cppcheck-suppress leakReturnValNotUsed
mmap(addr, 255, PROT_NONE, MAP_PRIVATE, fd, 0);
// cppcheck-suppress ignoredReturnValue
setuid(42);
// cppcheck-suppress ignoredReturnValue
getuid();
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}
// valid range
void invalidFunctionArg() {
// cppcheck-suppress invalidFunctionArg
usleep(-1);
usleep(0);
usleep(999999);
// cppcheck-suppress invalidFunctionArg
usleep(1000000);
}
void uninitvar(int fd) {
int x;
char buf[2];
// cppcheck-suppress uninitvar
write(x,"ab",2);
// cppcheck-suppress uninitvar
write(fd,buf,2);
// cppcheck-suppress uninitvar
write(fd,"ab",x);
/* int regcomp(regex_t *restrict preg, const char *restrict pattern, int cflags); */
regex_t reg;
const char * pattern;
int cflags;
// cppcheck-suppress uninitvar
regcomp(&reg, pattern, cflags);
pattern="";
// cppcheck-suppress uninitvar
regcomp(&reg, pattern, cflags);
}
void uninitvar_types(void) {
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// cppcheck-suppress unassignedVariable
blkcnt_t b;
// cppcheck-suppress uninitvar
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b + 1;
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struct dirent d;
// cppcheck-suppress uninitvar
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d.d_ino + 1;
}