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#include "drain.h"
#include <stdio.h>
#include <stdlib.h>
char *
drain(FILE *fp)
{
if (fseek(fp, 0, SEEK_END) < 0) {
perror("drain:SEEK_END");
return NULL;
}
long size = ftell(fp);
if (fseek(fp, 0, SEEK_SET) < 0) {
perror("drain:SEEK_SET");
return NULL;
}
char *data = malloc(size + 1);
if (data == NULL) {
perror("drain:malloc");
return NULL;
}
if ((long)fread(data, 1, size, fp) != size) {
perror("drain:fread");
free(data);
return NULL;
}
data[size] = '\0';
return data;
}
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