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#include "fileutils.h"
#include "alloc.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <pwd.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
const char* get_home_dir() {
const char *home_dir = getenv("HOME");
if(!home_dir) {
struct passwd *pw = getpwuid(getuid());
home_dir = pw->pw_dir;
}
return home_dir;
}
int file_get_content(const char *filepath, char **data, long *size) {
int result = 0;
FILE *file = fopen(filepath, "rb");
if(!file) {
int err = -errno;
perror(filepath);
return err;
}
fseek(file, 0, SEEK_END);
*size = ftell(file);
if(*size == -1) {
fprintf(stderr, "Failed to tell the size of file %s, is it not a file?\n", filepath);
result = -1;
goto cleanup;
}
fseek(file, 0, SEEK_SET);
*data = alloc_or_crash(*size);
if((long)fread(*data, 1, *size, file) != *size) {
fprintf(stderr, "Failed to read all bytes in file %s\n", filepath);
result = -1;
goto cleanup;
}
cleanup:
fclose(file);
return result;
}
int create_directory_recursive(char *path) {
int path_len = strlen(path);
char *p = path;
char *end = path + path_len;
for(;;) {
char *slash_p = strchr(p, '/');
// Skips first '/', we don't want to try and create the root directory
if(slash_p == path) {
++p;
continue;
}
if(!slash_p)
slash_p = end;
char prev_char = *slash_p;
*slash_p = '\0';
int err = mkdir(path, S_IRWXU);
*slash_p = prev_char;
if(err == -1 && errno != EEXIST)
return err;
if(slash_p == end)
break;
else
p = slash_p + 1;
}
return 0;
}
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