blob: 6d95e064a5968d463b4528505406a37bd8995029 (
plain)
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
|
#include <ccan/err/err.h>
#include <ccan/tal/path/path.h>
#include "tools.h"
#include <assert.h>
#include <string.h>
#include <stdlib.h>
/* Walk up to find /ccan/ => ccan directory. */
static unsigned int ccan_dir_prefix(const char *fulldir)
{
unsigned int i;
assert(fulldir[0] == '/');
for (i = strlen(fulldir) - 1; i > 0; i--) {
if (strncmp(fulldir+i, "/ccan", 5) != 0)
continue;
if (fulldir[i+5] != '\0' && fulldir[i+5] != '/')
continue;
return i + 1;
}
return 0;
}
const char *find_ccan_dir(const char *base)
{
static char *ccan_dir;
if (!ccan_dir) {
if (base[0] != '/') {
const char *tmpctx = path_cwd(NULL);
find_ccan_dir(path_join(tmpctx, tmpctx, base));
tal_free(tmpctx);
} else {
unsigned int prefix = ccan_dir_prefix(base);
if (prefix)
ccan_dir = tal_strndup(NULL, base, prefix);
}
}
return ccan_dir;
}
|
