1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
#include <stdio.h> // FILE *
#include <errno.h> // ESPIPE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h> // true/false
#include "util.h"
void *util_loadFile(FILE *const restrict file, size_t *const restrict outsize) { // open and fully load a file
if (ftell(file) == -1L) {
if (errno != ESPIPE) {
// perror("ftell");
return NULL;
}
fputs("opening pipes isnt supported yet\n", stderr);
return NULL;
} else {
if (fseek(file, 0, SEEK_END)) {
// perror("fseek");
}
long ssize = ftell(file);
size_t size = (size_t) ssize;
if (ssize == -1L) {
// perror("ftell");
return NULL;
}
rewind(file);
void *buffer = malloc(size);
if (buffer == NULL) {
// perror("malloc");
return NULL;
}
if (fread(buffer, 1, size, file) != size) {
if (ferror(file)) {
fputs("ferror set\n", stderr); // the internet was VERY helpful
}
// perror("fread");
return NULL;
}
if (outsize != NULL) {
*outsize = size;
}
return buffer;
}
}
#if defined(__unix__) || defined(__APPLE__)
#define DIR_SEPARATOR '/' // UNIX or OSX
#elif defined(_WIN32)
#define DIR_SEPARATOR '\\' // DOS
#endif
char *util_executableRelativePath(char const *const path, char const *const execPath, size_t dirLength) { // allocated on the heap
dirLength = 0;
if (dirLength == 0) {
for (dirLength = strlen(execPath); dirLength > 0 && execPath[dirLength - 1] != DIR_SEPARATOR; dirLength--)
;
}
size_t fileLength = strlen(path);
char *filePath = malloc(dirLength + fileLength + 1);
filePath[dirLength + fileLength] = 0;
memcpy(filePath, execPath, dirLength);
memcpy(filePath + dirLength, path, fileLength);
return filePath;
}
int util_stringToColor(struct color *color, char const *const str) {
if (str[0] != '#' || strnlen(str, 10) != 9) {
return 1;
}
char *out;
unsigned long colorint = strtoul(str + 1, &out, 16);
if (out != str + 9) {
return 1;
}
color->r = colorint >> 24;
color->g = colorint >> 16;
color->b = colorint >> 8;
color->a = colorint >> 0;
return 0;
}
|
