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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/* cfetch is my try to implement a neofetch/fastfetch/commiefetch clone in C.
* Copyright (C) 2026 Anser <https://codeberg.org/Anser/cfetch>
*
* cfetch is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* cfetch is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "../include/cfetch.h"
#include <stdbool.h>
#include <sys/utsname.h>
#include <unistd.h>
void get_kernel(struct system_info_t *info)
{
struct utsname u;
snprintf(info->kernel, sizeof(info->kernel), "Unknown");
if (uname(&u) != 0) return;
snprintf(info->kernel, sizeof(info->kernel), "%.30s %.30s", u.sysname, u.release);
}
void get_cpu(struct system_info_t *info)
{
char line[256];
char *cpu_name = NULL;
snprintf(info->cpu, sizeof(info->cpu), "Unknown");
FILE* file = fopen("/proc/cpuinfo", "r");
if (!file) return; // check pointer
//read per line
while (fgets(line, sizeof(line), file)) {
char* p = strstr(line, "model name");
if (p != NULL) {
cpu_name = strchr(p, ':') + 1; //skip :
break;
}
}
if (cpu_name != NULL) {
snprintf(info->cpu, sizeof(info->cpu), "%s", trim_whitespace(cpu_name));
}
fclose(file);
return;
}
void get_memory(struct system_info_t *info)
{
char line[256];
long total = 0;
long available = 0;
snprintf(info->memory, sizeof(info->memory), "Unknown");
FILE *file = fopen("/proc/meminfo", "r");
if (!file) return;
// read per line
while (fgets(line, sizeof(line), file)) {
if (sscanf(line, "MemTotal: %ld kB", &total) == 1) continue;
if (sscanf(line, "MemAvailable: %ld kB", &available) == 1) continue;
}
fclose(file);
snprintf(info->memory, sizeof(info->memory), "Memory %.2f GB / %.2f GB",
(total - available) / (1024.0 * 1024.0), total / (1024.0 * 1024.0));
return;
}
bool get_os_release_value(char *line, const char *key, char *buffer, size_t size_out)
{
if (!line || !key || !buffer || size_out == 0) return false;
size_t key_len = strlen(key);
if (key_len == 0) return false;
if (strncmp(line, key, key_len) != 0) return false;
// '=' pointer
char *eq = strchr(line, '=');
if (!eq) return false;
char *val = trim_whitespace(eq + 1);
if (*val == '"' || *val == '\'') {
char quote = *val; // safe which char was used
val++;
char *end = strchr(val, quote);
if (end != NULL) {
*end = '\0';
} else {
char *nl = strchr(val, '\n');
if (nl) *nl = '\0';
}
} else {
char *nl = strchr(val, '\n');
if (nl) *nl = '\0';
}
snprintf(buffer, size_out, "%s", val);
return true;
}
void get_os_release(struct system_info_t *info)
{
FILE *file;
char line[256];
char id[64] = { 0 };
char version_id[64] = { 0 };
char pretty_name[64] = { 0 };
snprintf(info->distro, sizeof(info->distro), "Unknown");
file = fopen("/etc/os-release", "r");
if (!file) {
file = fopen("/usr/lib/os-release", "r");
}
if (!file) return;
// get ID, PRETTY_NAME, VERSION_ID
while (fgets(line, sizeof(line), file)) {
if (get_os_release_value(line, "ID", id, sizeof(id))) continue;
if (get_os_release_value(line, "PRETTY_NAME", pretty_name, sizeof(pretty_name))) continue;
if (get_os_release_value(line, "VERSION_ID", version_id, sizeof(version_id))) continue;
}
// set OS
if (pretty_name[0] != '\0') {
snprintf(info->distro, sizeof(info->distro), "%s", pretty_name);
} else if (id[0] != '\0' && version_id[0] != '\0') {
snprintf(info->distro, sizeof(info->distro), "%s %s", id, version_id);
}
fclose(file);
return;
}
|
