TEST(StrstrTestCase, InvaidInput)
{
const char* haystack = "hello world";
const char* needle = "world";
EXPECT_EQ(NULL, strStr(NULL, NULL));
EXPECT_EQ(NULL, strStr(NULL, needle));
EXPECT_EQ(haystack, strStr(haystack, NULL));
EXPECT_EQ(NULL, strStr("haha", "hahaha"));
}
int handle_request(struct client *cli)
{
int ret;
int hlen;
char *idxptr = NULL;
// RequestS req;
// memset(&req, 0, sizeof (RequestS));
Logger(LOG_INFO, 0, "%s...\n", __FUNCTION__);
ret = httpd_tcp_recv(cli, cli->req.buffer, sizeof (cli->req.buffer));
if ( ret <= 0 )
{
Logger(LOG_ERR, 0, "http recv failed!\n");
return -1;
}
idxptr = strStr(cli->req.buffer, ret, "\r\n\r\n", 4);
if (idxptr == NULL)
{
Logger(LOG_ERR, 0, "Get request header failed!\n");
return -1;
}
hlen = (int)(idxptr-cli->req.buffer);
cli->req.entity = idxptr + 4;
http_header_parse(cli, hlen);
return 0;
}
int main()
{
printf("%d\n", strStr("a", ""));
system("pause");
return 0;
}
/* returns true iff "s" is a substring of a member of the list */
int
strListIsSubstr(const String * list, const char *s, char del)
{
assert(list && del);
return strStr(*list, s) != 0;
/*
* Note: the original code with a loop is broken because it uses strstr()
* instead of strnstr(). If 's' contains a 'del', strListIsSubstr() may
* return true when it should not. If 's' does not contain a 'del', the
* implementaion is equavalent to strstr()! Thus, we replace the loop with
* strstr() above until strnstr() is available.
*/
#ifdef BROKEN_CODE
const char *pos = NULL;
const char *item;
assert(list && s);
while (strListGetItem(list, del, &item, NULL, &pos)) {
if (strstr(item, s))
return 1;
}
return 0;
#endif
}
int main() {
char *a = "hello world";
char *b = "llo";
printf("%s, %s, %d\n", a, b, strStr(a, b));
return 0;
}
int main(){
char a[]="abdfa";
char b[]="df";
char* p = strStr(a,b);
printf("ans: %s\n",p);
return 0;
}
/* returns true iff "s" is a substring of a member of the list, >1 if more than once */
int
strIsSubstr(const String * list, const char *s)
{
const char *p;
assert(list && s);
p = strStr(*list, s);
if (!p)
return 0;
if (strstr(p + 1, s) != NULL)
return 2;
return 1;
}
void testCase_strStr()
{
string haystack = "hello world, i am Marin Young";
string s1 = "hello";
string s2 = "world";
string s3 = "i";
string s4 = "am";
string s5 = "Marin";
string s6 = "Young";
cout<<strStr(haystack, s1)<<endl;
cout<<strStr(haystack, s2)<<endl;
cout<<strStr(haystack, s3)<<endl;
cout<<strStr(haystack, s4)<<endl;
cout<<strStr(haystack, s5)<<endl;
cout<<strStr(haystack, s6)<<endl;
}
main(int argc, char *argv[]) {
FILE *fp;
int nl = 1;
char line[512];
if((fp = fopen(argv[1], "r")) == NULL) {
printf("Plik nie istnieje lub wystąpił problem z jego odczytem.");
return(-1);
}
while(fgets(line, sizeof(line), fp) != NULL) {
if(strStr(line, argv[2])) {
printf("%d -> %s\n", nl, line);
}
nl++;
}
if(fp) {
fclose(fp);
}
return(0);
}
struct client* http_header_parse(struct client *cli, int len)
{
char *method = NULL;
char *url = NULL;
char *version = NULL;
char *idxptr = NULL;
char *headers = NULL;
char *hdrname = NULL;
char *hdrvalue = NULL;
char *newhdr = NULL;
struct request *req = &cli->req;
Logger(LOG_INFO, 0, "%s...\n", __FUNCTION__);
int hdrcount = 0;
method = req->buffer;
if ( (headers = strStr(req->buffer, len, "\r\n", 2)) != NULL) //start line terminal
{
Logger(LOG_INFO, 0, "Get start line\n");
*headers++ = 0;
*headers++ = 0; //now headers point to HTTP Headers
if ( NULL != (url = strchr(method, ' ')))
{
*url++ = 0; // now method has been terminal correct, and url point to begin of url
}
if ( NULL != (version = strchr(url, ' ')))
{
*version++ = 0;
}
// check method
if (method && !strncmp(method, "GET", 3))
{
req->method = HTTP_MSG_GET;
}
else if (method && !strncmp(method, "POST", 4))
{
req->method = HTTP_MSG_POST;
}
else
{
req->method = HTTP_MSG_NOTSUPPORT;
httpd_response(cli, 405, "Method Not Support");
return NULL;
}
Logger(LOG_INFO, 0, "Check URL...\n");
/* Check URL */
if (url && strlen(url))
{
req->url = url;
}
else
{
httpd_response(cli, 400, "Bad Request");
}
/* Check Version */
Logger(LOG_INFO, 0, "Check version...\n");
if (version && !strncmp(version, "HTTP/0.9", 8))
{
req->version = HTTP_VERSION_0_9;
}
else if (version && !strncmp(version, "HTTP/1.0", 8))
{
req->version = HTTP_VERSION_1_0;
}
else if (version && !strncmp(version, "HTTP/1.1", 8))
{
req->version = HTTP_VERSION_1_1;
}
else
{
httpd_response(cli, 400, "Bad Request");
return NULL;
}
/* Header prase process */
Logger(LOG_INFO, 0, "Check Headers...\n");
newhdr = headers;
while ( newhdr != req->entity )
{
if ( hdrname && hdrvalue )
{
if ( (hdrcount+1) > ARRAY_SIZE(req->hdrnames) )
{
httpd_response(cli, 413, "Request Headers Too Large!");
return NULL;
}
req->hdrnames[hdrcount] = hdrname;
req->hdrvalues[hdrcount] = hdrvalue;
hdrcount++;
hdrname = NULL;
hdrvalue = NULL;
}
else if (hdrname)
{
hdrvalue = strchr(hdrname, ':');
*hdrvalue++ = 0;
while (*hdrvalue == ' ')
{
hdrvalue++;
}
if ((newhdr = strchr(hdrvalue, '\r')) || (newhdr = strchr(hdrvalue, '\n'))) // error, while loop will cause newhdr == NULL at last
{
*newhdr++ = 0;
}
while (*newhdr == '\r' || *newhdr == '\n')
{
*newhdr++ = 0;
}
}
else
{
hdrname = newhdr;
}
}
}
else
{
httpd_response(cli, 400, "Bad Request");
return NULL;
}
httpd_response(cli, 0, NULL);
return cli;
}
/* find: print lines that match pattern from 1st arg */
int main(int argc, char *argv[])
{
char line[MAXLINE];
long lineno = 0;
int c, except = 0, number = 0, found = 0;
/* argv作为一个字符指针数组的数组名,则argv是数组首元素的地址,++argv
* 是数组首元素的下一个元素的地址,*++argv相当于argv[1],而argv[1]是
* 一个指向第一个参数字符串的字符指针,(*++argv)[0]取指针指向的首元素
* 假如输入命令是 find -n -x "ould",则(*++argv)[0]正好等于'-'.下面的
* 第一个while循环正是通过这种方式来获取命令的选项参数,从而进行操作.
*/
while (--argc && (*++argv)[0] == '-') {
/* 上面提到如果输入命令包含参数,则(*++argv)[0]正好指向参数的第一个
* 字符,按照惯例,该字符是'-';此时,argv[0]是一个指向第一个参数字符串
* 的字符指针,则++argv[0]指向第一个参数字符串的第二个字符的地址,则
* *++argv[0]指向该字符,如果输入命令是 find -n -x "ould",则该字符
* 是'n', switch 语句会对取出来的字符进行判断并处理.由于命令参数传
* 给main()函数时,是以字符串的形式传入,所以命令参数的末尾会有'\0',
* 书中把下面的while循环写为 while (c = *++argv[0]), 这是利用了这
* 一点来作为终止条件.当然,写为下面的形式,会显得直观一点.
*/
while ((c = *++argv[0]) != '\0')
switch (c) {
/* precede each printed line by its line number */
case 'n':
number = 1;
break;
/* print all the lines except those that match the pattern */
case 'x':
except = 1;
break;
default:
printf("error: illegal option %c\n", c);
argc = 0;
found = -1;
break;
}
}
/* 解析完参数选项后,应该还剩下一个参数,那就是要比较的模式字符串pattern,
* 如果没有这个参数,则输入的命令不正确,下面会打印出提示字符串.
*/
if (argc != 1)
printf("Usage: find -x -n pattern\n");
else
while (getLine(line, MAXLINE) > 0) {
++lineno;
/* 当匹配时,strStr(line, *argv) != NULL为1,若希望打印匹配的
* 字符串,则except为0,所以if的判断条件为真,打印出匹配的字符串;
* 当不匹配时,strStr(line, *argv) != NULL为0,若希望打印不匹配
* 的字符串,则except为1,此时if的判断条件为真,打印不匹配的字符串
*/
if ((strStr(line, *argv) != NULL) != except) {
if (number)
printf("%ld:", lineno);
printf("%s", line);
++found;
}
}
return found;
}
int main() {
char *s = "CKQYYHAHUYYCDBDFGPBXDJJKPBWLGCNGVAONMAFHRXASGEVEKQFKGQJOSTXN";
char *p = "GP";
printf("answer is %d\r\n", strStr(s, p));
}
int main(){
printf("%d\n", strStr("", ""));
return 0;
}
int main(){
char *s = "123456";
char *p = "456";
printf("%d",strStr(s,p));
return 0;
}
void EnumFiles(VMenu2& Menu, const string& Str)
{
if(!Str.empty())
{
string strStr(Str);
size_t Pos = 0;
if(std::count(ALL_CONST_RANGE(strStr), L'"') & 1) // odd quotes count
{
Pos = strStr.rfind(L'"');
}
else
{
for(Pos=strStr.size()-1; Pos!=static_cast<size_t>(-1); Pos--)
{
if(strStr[Pos]==L'"')
{
Pos--;
while(strStr[Pos]!=L'"' && Pos!=static_cast<size_t>(-1))
{
Pos--;
}
}
else if(strStr[Pos]==L' ')
{
Pos++;
break;
}
}
}
if(Pos==static_cast<size_t>(-1))
{
Pos=0;
}
bool StartQuote=false;
if(Pos < strStr.size() && strStr[Pos]==L'"')
{
Pos++;
StartQuote=true;
}
string strStart(strStr.data(),Pos);
Unquote(strStr.erase(0, Pos));
if(!strStr.empty())
{
string strExp = os::env::expand_strings(strStr);
os::fs::enum_file Find(strExp+L"*");
bool Separator=false;
std::for_each(CONST_RANGE(Find, i)
{
const wchar_t* FileName=PointToName(strStr);
bool NameMatch=!StrCmpNI(FileName, i.strFileName.data(), StrLength(FileName)), AltNameMatch = NameMatch? false : !StrCmpNI(FileName, i.strAlternateFileName.data(), StrLength(FileName));
if(NameMatch || AltNameMatch)
{
strStr.resize(FileName-strStr.data());
string strAdd (strStr + (NameMatch ? i.strFileName : i.strAlternateFileName));
if (!StartQuote)
QuoteSpace(strAdd);
string strTmp(strStart+strAdd);
if(StartQuote)
strTmp += L'"';
if(!Separator)
{
if(Menu.GetItemCount())
{
MenuItemEx Item;
Item.strName = MSG(MCompletionFilesTitle);
Item.Flags=LIF_SEPARATOR;
Menu.AddItem(Item);
}
else
{
Menu.SetTitle(MSG(MCompletionFilesTitle));
}
Separator=true;
}
Menu.AddItem(strTmp);
}
});
