Programming

/* usage exename textfile searchstring */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
int main(int argc, char *argv[]) 
{ 
FILE *file; 
char line[BUFSIZ]; 
int linen = 1; 
file = fopen(argv[1], "r"); 
if(file != NULL) { 
  while(fgets(line, sizeof(line), file)){ 
     if(strstr(line, argv[2]) != NULL) { 
        printf("Found %s %s %i\n",argv[2],"@ line",linen); 
     }
 ++linen;     
 } 
} 
else { 
  perror(argv[1]); 
  perror(argv[2]); 
} 
fclose(file); 
return 0; 
}

123 test=123 val=233.33 x=111 y=222
123 test=123 val=.33 x=111 
123 xr=3 test=123 x=111 y=222
123 test=123 val=233. x=111 y=222
123 test=123 val=233.33 x=111 y=222
 
Output from current code:
Found val @ line 1
Found val @ line 2
Found val @ line 4
Found val @ line 5

#include <stdio.h>
#include <string.h>

int match(char *ts,char *pattern);

int main()
{

        char *str="123 test=123 val=233.33 x=111 y=222 senth";
        char *ptt="senth";


        match(str,ptt);

}

int match(char *ts,char *pattern)
{

        char *pt=pattern;

        while(1)
        {
                printf ("comparing %c %c\n",*ts,*pt);
                while( *pt && *ts++ == *pt++)
                {
                        printf ("comparing %c %c\n",*ts,*pt);
                        ;
                }
                if(*pt == '\0')
                {
                        printf("match found %s\n",ts-strlen(pattern)-1);
                        break;
                }
                else if(*ts== '\0')
                {
                        printf("match not found \n");
                        // pattern not found
                        break;
                }
                        pt=(char *)pattern;
        }

}