parser.c

小型web服务器

/* Author:eveson <[e-mail]>
   website:http://eveson.cublog.cn
  */
  
#include "parser.h"

int readconfig(const char filename[],char *key[],int len,char value[][255])
{
	FILE *fp;
	char buffer[255],row[255],temp[255],*p,*q;
	int i,m,n,k;

	if((fp = fopen(filename,"rb")) == NULL)
	{
		perror ("file open failed.\n");
		return -1;
	}

	i = k = 0;

	while (fgets(row,255,fp) != NULL)
	{
		//delete the space char.
		q = row;
		m = n = 0;

		while(*q != '\0')
		{
			if(*q != ' ')
			{
				buffer[m] = row[n];
				m++;
				n++;
			}
			else
				n++;
			q++;
		}

		buffer[m - 1] = '\0';        //delete the \n char.
		//part the variable and relevant value.
		p = buffer;
		k = 0;

		while (*p != '\0')
		{
			temp[k] = *p;
			if(*p == '=')
			{
				temp[k] = '\0';
				for (i = 0;i < len;i++)
				{
					if(strcmp(temp,key[i]) == 0)
					{
						strcpy(value[i],p + 1);
						break;
					}
				}
			}
			k++;
			p++;
		}
	}

	fclose (fp);

	return 1;
}

void parser(char *s,char res[][255])
{
	int i,j = 0;

	for (i = 0;s[i] != '\r';i++)		/* obtain the first line in http protocol head */
		;
	s[i] = '\0';

	for (i = 0,j = 0;i < 3;i++,j++)		/* divide the protocol head in blank */
	{
		strcpy(res[j],strsep(&s," "));
	}
}


int is_picture(char file[],char type[])
{
	char *fname,*p;
	int i,j = 0;;
	
	for (p = &file[strlen(file) + 1];*p != '/';p--)
		;
	fname = p + 1;
	for (i = 0;fname[i] != '\0';i++)
	{
		if (fname[i] == '.')
		{
			strcpy(type,&fname[i + 1]);
			break;
		}
	}
	if (strcmp(type,"jpg") == 0 || strcmp(type,"png") == 0 || strcmp(type,"gif") == 0)
		return 1;
	else
		return 0;
}

void sig_child()	/* clean child process */
{
	wait(NULL);
}