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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/* See LICENSE file for copyright & license details. */
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "steammontage.h"
#include "whereami/whereami.h"
#define CH_BACKSLASH '\\'
#define CH_EQUAL '='
#define CH_FORSLASH '/'
#define CH_NEWL '\n'
#define CH_NUMSIGN '#'
#define CH_NULL '\0'
#define CH_SPACE ' '
#define CONFIGTXT_LEN 10
int
validate_input(struct config *cfg)
{
if (cfg->api_key[0] == '\0' || cfg->steam_id[0] == '\0') {
fprintf(stderr,
"Steam ID and/or API key not set.\n");
return -1;
}
return 1;
}
int
parse_api_key(const char *val, char *api_key)
{
int i, c = 0;
for (i = 0; val[i] != '\0'; i++) {
if (!isalnum(val[i])) {
return 0;
}
c++;
}
if (c != STEAM_API_LEN) {
return 0;
}
strncpy(api_key, val, STEAM_API_LEN);
return 1;
}
int
parse_steam_id(const char *val, char *steam_id)
{
int i, c = 0;
for (i = 0; val[i] != '\0'; i++) {
if (!isdigit(val[i])) {
return 0;
}
c++;
}
if (c != STEAM_ID_LEN) {
return 0;
}
strncpy(steam_id, val, STEAM_ID_LEN);
return 1;
}
int
parse_width(const char *arg, uint16_t *width)
{
char *end;
static int set = 0;
long value;
if (set == 1) {
return -1;
}
value = strtoul(arg, &end, 10);
if (end == arg || *end != '\0' || value == 0 || value > UINT16_MAX) {
return 0;
}
*width = (uint16_t) value;
set = 1;
return 1;
}
int
get_running_dir(runningdir *runningdir)
{
int dirname_length;
int length = wai_getExecutablePath(NULL, 0, NULL);
runningdir->dirpath = (char*)malloc(length);
if (runningdir->dirpath == NULL) {
print_oom();
return -1;
}
wai_getExecutablePath(runningdir->dirpath, length, &dirname_length);
runningdir->dirlen = dirname_length;
runningdir->dirpath = realloc(runningdir->dirpath, dirname_length + 2);
if (runningdir->dirpath == NULL) {
print_oom();
return -1;
}
runningdir->dirpath[dirname_length + 1] = '\0';
return 1;
}
int
parse_config(char *dirpath, struct config *cfg)
{
FILE* cfgfile;
int cfgpathlength = strlen(dirpath) + CONFIGTXT_LEN + 1;
int linenum = 0;
int api_key_set = (cfg->api_key[0] != '\0' ? 1 : 0);
int steam_id_set = (cfg->steam_id[0] != '\0' ? 1 : 0);
char cfgpath[cfgpathlength];
char linebuf[MAX_CFG_LINE_SIZE];
char scanbuf[MAX_CFG_LINE_SIZE];
snprintf(cfgpath, cfgpathlength, "%sconfig.txt\0", dirpath);
if ((cfgfile = fopen(cfgpath, "r")) == NULL) {
fprintf(stderr,
"Unable to open cfg file.\n");
return 0;
}
while (fgets(linebuf, sizeof(linebuf), cfgfile) != NULL) {
linenum++;
if (sscanf(linebuf, " %s", scanbuf) == EOF) {
continue;
}
if (sscanf(linebuf, " %[#]", scanbuf) == 1) {
continue;
}
if (sscanf(linebuf, " " OPT_API_KEY " = %s", scanbuf) == 1) {
if (api_key_set) {
continue;
}
if(parse_api_key(scanbuf, &cfg->api_key[0]) == 0){
fprintf(stderr,
"Error in %s\n"
"Line %d: invalid " OPT_API_KEY
" provided in config\n", cfgpath, linenum);
return -1;
}
continue;
}
if (sscanf(linebuf, " " OPT_STEAM_ID " = %s", scanbuf) == 1) {
if (steam_id_set) {
continue;
}
if(parse_steam_id(scanbuf, &cfg->steam_id[0]) == 0){
fprintf(stderr,
"Error in %s\n"
"Line %d: invalid " OPT_STEAM_ID
" provided in config\n", cfgpath, linenum);
return -1;
}
continue;
}
if (sscanf(linebuf, " " OPT_WIDTH " = %s", scanbuf) == 1) {
if(parse_width(scanbuf, &cfg->width) == 0){
fprintf(stderr,
"Error in %s\n"
"Line %d: invalid " OPT_WIDTH
" provided in config\n", cfgpath, linenum);
return -1;
}
continue;
}
fprintf(stderr,
"Invalid line in config file: %d\n",
linenum);
return -1;
}
fclose(cfgfile);
return 1;
}
|