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#include "config.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "logerr.h"
#include "util.h"
const size_t
NULL_TERMINATOR = sizeof((char)'\0');
int
slurp(const char *const filename, char **out) {
int rc = -1;
FILE *file = NULL;
char *str = NULL;
file = fopen(filename, "r");
if (file == NULL) {
logerr("fopen(): %s", strerror(errno));
goto out;
}
if (fseek(file, 0L, SEEK_END)) {
logerr("fseek(): %s", strerror(errno));
goto out;
}
const long lsize = ftell(file);
if (lsize == -1) {
logerr("ftell(): %s", strerror(errno));
goto out;
}
const size_t size = (size_t)lsize;
errno = 0;
rewind(file);
if (errno) {
logerr("rewind(): %s", strerror(errno));
goto out;
}
str = malloc(size + NULL_TERMINATOR);
if (str == NULL) {
logerr("malloc(): %s", strerror(errno));
goto out;
}
if (fread(str, sizeof(char), size, file) != size) {
logerr("fread(): %s", strerror(errno));
goto out;
}
str[size] = '\0';
*out = str;
rc = 0;
out:
if (file != NULL) {
if (fclose(file)) {
logerr("fclose(): %s", strerror(errno));
rc = -1;
}
}
if (rc) {
if (str != NULL) {
free(str);
}
}
return rc;
}
void
freeit(const void **const ptr) {
free((void *)*ptr);
*ptr = NULL;
}
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