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hello_srs.c
159 строк · 2.6 Кб
Перенос по словам
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <embox/cmd.h>
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EMBOX_CMD(hello_srs_main);
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const int N = 10000;
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void Multiply(int a[], int b[], int result[]) {
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	for (int i = 1; i <= a[0]; i++) {
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		for (int j = 1; j <= b[0]; j++) {
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			result[i + j - 1] += a[i] * b[j];
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		}
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	}
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	result[0] = a[0] + b[0] + 1;
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}
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void Assigment(int a[], int c[]) {
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	for (int i = 1; i <= c[0]; i++){
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		a[i] = c[i];
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		c[i] = 0;
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	}
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	a[0] = c[0];
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	c[0] = 0;
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}
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void Carry(int c[]) {
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	int length = c[0];
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	for (int i = 1; i <= c[0]; i++) {
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		if (c[i] >= 10) {
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			c[i + 1] += c[i] / 10;
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			c[i] %= 10;
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		}
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	}
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	while (c[length] == 0) {
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		length--;
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		c[0] = length;
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	}
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}
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void Read(int numb, int a[]) {
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	char* number = (char*)malloc(100);
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	sprintf(number, "%d", numb);
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	int index = 1;
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	int i;
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	for (i = strlen(number) - 1; i >= 0; i--) {
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		a[index] = number[i] - '0';
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		index++;
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	}
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	a[0] = strlen(number);
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}
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void Out1(int a[]) {
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	for (int i = a[0]; i > 0; i--)
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		printf("%d", a[i]);
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	printf("\n");
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}
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void Out2(char* str) {
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	for (int i = 0; i < strlen(str); i++)
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		printf("%c", str[i]);
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	printf("\n");
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}
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static int hello_srs_main(int argc, char *argv[] )
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{
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	int a[N], b[N], c[2 * N], flag = 0;
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	char str[100];
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	char* query=NULL;
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	char* query1="fact";
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	char* query2="open";
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	const char *method = getenv("REQUEST_METHOD");
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	assert(method);
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 	if( !strcmp(method,"POST") )
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	{
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 		unsigned int len;
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  		len = atoi( getenv("CONTENT_LENGTH") );
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 		query = (char*)malloc(len+1);
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  		fread(query, 1, len, stdin);
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 		query[len] = 0;
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	}
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 	else if( !strcmp(method,"GET") )
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 	{
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 		query=(char*)malloc(strlen(getenv("QUERY_STRING"))+1);
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 		strcpy(query,getenv("QUERY_STRING"));
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	}
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 	else printf("unknown REQUEST_METHOD\n");
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	if ( !strncmp(query, query1, 4) )
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	{
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		flag = 1;
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		Read(1, a);
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		char* tmp = strstr(query, "=");
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		query = NULL;
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		for(int i = 1; i < sizeof(tmp); i++)
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			query[i-1] = tmp[i];
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		for (int i = 2; i <= atoi(query); i++) {
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			Read(i, b);
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			Multiply(a, b, c);
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			Carry(c);
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			Assigment(a, c);
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		}
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	}
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	if ( !strncmp(query, query2, 4) )
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	{
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		flag = 2;
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		char* tmp = strstr(query, "=");
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		query = NULL;
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		for(int i = 1; i < sizeof(tmp); i++)
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			query[i-1] = tmp[i];
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		FILE *File = fopen(query, "rt");
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	if (File != NULL)
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	{
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		fgets(str, sizeof(str), File);
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		fclose(File);
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	}
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	else
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	{
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		str[0] = 'E';
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	}
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	}
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	printf(
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		"HTTP/1.1 %d %s\r\n"
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		"Content-Type: %s\r\n"
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		"Connection: close\r\n"
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		"\r\n", 200, "OK", "text/html");
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	printf("<HTML>"
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		"<HEAD>"
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   		"<TITLE>Fact</TITLE>"
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		"</HEAD>"
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		"<BODY>"
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		"Body: ");
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	if (flag == 1)
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		Out1(a);
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	else
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	if (flag == 2)
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		Out2(str);
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	printf(
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		"</BODY>"
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		"</HTML>");
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	free(query);
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	fflush(stdout);
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	return 0;
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}
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