sscanf fails to read string and double seperated by space - c

Question

I'm scanning values from a file and storing them in an array. I have a custom struct called NODE which looks like this:
typedef struct node
{
char *name;
double value;
struct node *parent;
struct node *left_child;
struct node *right_child;
} NODE;
This function receives a string and two unsigned integer pointers and returns the data that was read in the form of a NODE array:
NODE *readNodes(char filename[], unsigned int *numNodes, unsigned int *capacity)
{
FILE *f = fopen(filename, "r");
if (f == NULL)
{
exit(1);
}
*numNodes = 0;
*capacity = 1;
int scanResult;
char *resultString = NULL;
char inputString[101];
NODE *nodes = (NODE *)malloc(sizeof(NODE) * (*capacity));
while (1)
{
while (*numNodes >= *capacity)
{
*capacity *= 2;
nodes = (NODE *)realloc(nodes, sizeof(NODE) * (*capacity));
}
resultString = fgets(inputString, 100, f);
if (resultString == NULL || (strcmp("\n", resultString) == 0))
{
break;
}
scanResult = sscanf(inputString, "%s %lf", nodes[*numNodes].name, &(nodes[*numNodes].value));
if (scanResult != 2)
{
*numNodes = 0;
*capacity = 0;
free(nodes);
return NULL;
}
nodes[*numNodes].parent = NULL;
nodes[*numNodes].left_child = NULL;
nodes[*numNodes].right_child = NULL;
*numNodes++;
}
return nodes;
}
The file it's reading from looks like this:
X 0.01
F 0.19
G 0.21
J 1.39
B 1.56
Y 1.96
H 2.08
Z 2.50
P 2.54
C 2.66
U 2.82
M 2.88
D 3.07
K 3.12
V 3.40
R 3.78
T 4.29
L 4.52
S 4.64
N 4.66
I 5.71
E 7.22
O 7.88
A 9.71
0 17.11
I can see from the debugger that it correctly reads a line but the sscanf fails somehow. I tried only scanning the string but that also fails. The return value of the sscanf is always 0 which would mean that it could not scan anything.
This is the full code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
typedef struct node
{
char *name;
double value;
struct node *parent;
struct node *left_child;
struct node *right_child;
} NODE;
typedef struct queue
{
unsigned int front, end, size;
unsigned int capacity;
NODE *array;
} QUEUE;
NODE *readNodes(char filename[], unsigned int *numNodes, unsigned int *capacity)
{
FILE *f = fopen(filename, "r");
if (f == NULL)
{
exit(1);
}
*numNodes = 0;
*capacity = 1;
int scanResult;
char *resultString = NULL;
char inputString[101];
NODE *nodes = (NODE *)malloc(sizeof(NODE) * (*capacity));
while (1)
{
while (*numNodes >= *capacity)
{
*capacity *= 2;
nodes = (NODE *)realloc(nodes, sizeof(NODE) * (*capacity));
}
resultString = fgets(inputString, 100, f);
if (resultString == NULL || (strcmp("\n", resultString) == 0))
{
break;
}
scanResult = sscanf(inputString, "%s %lf", nodes[*numNodes].name, &(nodes[*numNodes].value));
if (scanResult != 2)
{
*numNodes = 0;
*capacity = 0;
free(nodes);
return NULL;
}
nodes[*numNodes].parent = NULL;
nodes[*numNodes].left_child = NULL;
nodes[*numNodes].right_child = NULL;
*numNodes++;
}
return nodes;
}
int main()
{
QUEUE freeNodes;
freeNodes.array = readNodes("./data/input.txt", &(freeNodes.size), &(freeNodes.capacity));
for (int i = 0; i < freeNodes.size; i++)
{
printf("%s\n", freeNodes.array[i].name);
}
free(freeNodes.array);
return 0;
}