Code doesn't read what it should read - c

Question

Ok, so I have to write a C program that allocated memory dynamically, that reads n lines of char text and that counts number of appearances of a specific word. Unfortunately, after I read n, then the n lines, then the m and k, it won't read cuv1 and it will always show 0. Any idea why?
This is the code:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
char c[100][100];
int n;
int prima(const char *s1, char *cuv1)
{
int ok=0, i;
char *p;
p=strstr(s1, cuv1);
while(p)
{
ok++;
strcpy(p, p+strlen(cuv1));
p=strstr(p, cuv1);
}
return ok;
}
int main()
{
int m, k, i, l, nr=0;
char t[20], s1[12000];
scanf("%d", &n);
char *text, *v[n], cuv1[12000];
getchar();
for(i=0;i<n;i++)
{
text=malloc(12000*sizeof(char));
fgets(text, 12000, stdin);
l=strlen(text);
text[l-1]='\0';
l=l-1;
v[i]=malloc(l*sizeof(char));
strcpy(v[i], text);
}
scanf("%d", &m);
for(i=1;i<=m;i++)
{
scanf("%d", &k);
if(k==1)
{
fgets(cuv1, 12000, stdin);
for(i=1;i<=n;i++)
{
strcpy(s1, v[i]);
nr=nr+prima(s1);
}
printf("%d", nr);
}
}
return 0;
}

Answer 1

Unfortunately I get this error: incompatible pointer to integer conversion passing 'char [12000]' to parameter of type 'char'
Check the prototype of strstr - then you'll see your p=strstr(s1, cuv1); is wrong as cuv1 is a char, not a const string for the second parameter of strstr (const char *).
char * strstr ( const char *, const char * );
So for a start, change your int prima(char s1) to int prima(const char *s1), or int prima(const char s1[]).

Answer 2

after applying the comments and fixing some logic problems
the following code makes significant use of malloc() and free()
You will need to add any multiple search string capabilities
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int prima( char *strToSearch, char *strToFind)
{
int countFound=0;
char *p = strToSearch;
do
{
if( NULL != (p = strstr( p, strToFind) ) )
{ // then sub string found
countFound++;
p += strlen(strToFind);
}
} while(p);
return countFound;
} // end function: prima
void flushstdin( void )
{
int ch;
while( (ch = getchar()) != EOF && '\n' != ch) ;
}
void cleanup( char **linesToFree, int lineCount )
{
for( int i=0; i < lineCount; i++ )
{
free( linesToFree[i] );
}
}
int main( void )
{
int countLinesToRead = 0;
printf( "Enter number of lines to read: " );
if( 1 != scanf("%d", &countLinesToRead) )
{ // then scanf failed
perror( "scanf for count of lines to read failed" );
exit( EXIT_FAILURE );
}
// implied else, scanf successful
char **ptrToLines = NULL;
if( NULL == (ptrToLines = malloc( countLinesToRead*sizeof(char*) ) ) )
{ // then malloc failed
perror( "malloc for array of char pointers failed" );
exit( EXIT_FAILURE );
}
// implied else, malloc successful
// init to all NULLs so easy to recover if error occurs
for( int i = 0; i < countLinesToRead; i++ )
{
ptrToLines[i] = NULL;
}
flushstdin();
for( int i = 0; i < countLinesToRead; i++ )
{
size_t lineLen = 1;
if( 0 < getline( &ptrToLines[i], &lineLen, stdin) )
{ // then read of line successful
// remove any trailing newline char
char *newline = NULL;
if( NULL != (newline = strstr( ptrToLines[i], "\n") ) )
{ // then newline to be trimmed
*newline = '\0';
}
}
else
{ // getline failed
perror( "getline for line to search failed" );
cleanup( ptrToLines, countLinesToRead );
exit( EXIT_FAILURE );
}
}
char *strToFind = NULL;
size_t searchLen = 1;
printf( "Enter sub string to search for: " );
if( 0 < getline( &strToFind, &searchLen, stdin) )
{ // then read of line successful
// remove any trailing newline char
char *newline = NULL;
if( NULL != (newline = strstr( strToFind, "\n") ) )
{ // then newline to be trimmed
*newline = '\0';
}
}
else
{ // getline failed
perror( "getline for string to find failed" );
cleanup( ptrToLines, countLinesToRead );
exit( EXIT_FAILURE );
}
int countFound = 0;
for(int i=0; i<countLinesToRead; i++)
{
countFound += prima( ptrToLines[i], strToFind);
}
printf("%d\n", countFound);
cleanup( ptrToLines, countLinesToRead );
return 0;
}
here is the results of a run of the above code:
Enter number of lines to read: 2
adfadfadfadf adf adb
abcdef adfadf
Enter sub string to search for: adf
7