asar coverage - build #285

src/asar/
File: src/asar/platform/linux/file-helpers-linux.cpp
Date: 2025-03-08 01:27:32
Lines:
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Functions:
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Branches:
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1 #include "platform/file-helpers.h"
2 #include <sys/stat.h>
3 #include <errno.h>
4
5 5477 bool file_exists(const char * filename)
6 {
7 5477 struct stat st;
8
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 5477 return (!stat(filename, &st));
9 }
10
11 11720 bool path_is_absolute(const char* path)
12 {
13 11720 return ('/' == path[0]);
14 }
15
16 33 char get_native_path_separator()
17 {
18 33 return '/';
19 }
20
21 281 bool check_is_regular_file(const char* path)
22 {
23 281 struct stat finfo;
24
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 281 if (stat(path, &finfo) == 0)
25 {
26 // either regular file or symlink
27
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 281 if (finfo.st_mode & (S_IFREG | S_IFLNK))
28 275 return true;
29 }
30 6 return false;
31 }
32
33
34 289 FileHandleType open_file(const char* path, FileOpenMode mode, FileOpenError* error)
35 {
36 289 FILE* out_handle = NULL;
37 const char* open_mode;
38
39
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 289 switch (mode)
40 {
41 3 case FileOpenMode_ReadWrite:
42 3 open_mode = "r+b";
43 3 break;
44 283 case FileOpenMode_Read:
45 283 open_mode = "rb";
46 283 break;
47 3 case FileOpenMode_Write:
48 3 open_mode = "wb";
49 3 break;
50 }
51
52 289 out_handle = fopen(path, open_mode);
53
54
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 289 if (error != NULL)
55 {
56
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 275 if (out_handle != NULL)
57 {
58 275 *error = FileOpenError_None;
59 }
60 else
61 {
62 ✗ int fopen_error = errno;
63
64 ✗ switch (fopen_error)
65 {
66 ✗ case ENOENT:
67 ✗ *error = FileOpenError_NotFound;
68 ✗ break;
69 ✗ case EACCES:
70 ✗ *error = FileOpenError_AccessDenied;
71 ✗ break;
72 ✗ default:
73 ✗ *error = FileOpenError_Unknown;
74 ✗ break;
75 }
76 }
77 }
78
79 289 return out_handle;
80 }
81
82 283 void close_file(FileHandleType handle)
83 {
84
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 283 if (handle == InvalidFileHandle) return;
85
86 283 fclose(handle);
87 }
88
89 280 uint64_t get_file_size(FileHandleType handle)
90 {
91
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 280 if (handle == InvalidFileHandle) return 0u;
92
93 280 long int f_pos = ftell(handle);
94 280 fseek(handle, 0, SEEK_END);
95 280 long int f_size = ftell(handle);
96 280 fseek(handle, f_pos, SEEK_SET);
97
98 280 return (uint64_t)f_size;
99 }
100
101 287 void set_file_pos(FileHandleType handle, uint64_t pos)
102 {
103
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 287 if (handle == InvalidFileHandle) return;
104
105 // TODO: Some error handling would be wise here.
106
107 287 fseek(handle, pos, SEEK_SET);
108 }
109
110 286 uint32_t read_file(FileHandleType handle, void* buffer, uint32_t num_bytes)
111 {
112
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 286 if (handle == InvalidFileHandle) return 0u;
113
114 // TODO: Some error handling would be wise here.
115
116 286 return (uint32_t)fread(buffer, 1, num_bytes, handle);
117 }
118
119 3 uint32_t write_file(FileHandleType handle, const void* buffer, uint32_t num_bytes)
120 {
121
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 3 if (handle == InvalidFileHandle) return 0u;
122
123 // TODO: Some error handling would be wise here.
124
125
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 3 return (uint32_t)fwrite(buffer, 1, num_bytes, handle);
126 }
127