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1 | // vim:shiftwidth=2:expandtab |
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2 | #ifdef LOADER |
3 | #include "../loader/realfuncs.h" |
4 | #endif |
5 | #include <stdio.h> |
6 | #include <string.h> |
7 | #include <unistd.h> |
8 | |
9 | #include "cmn.h" |
10 | |
11 | int make_local_path(char *buf, size_t size, const char *file) |
12 | { |
13 | ssize_t ret; |
14 | char *p; |
15 | |
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16 | p = getenv("GINGE_ROOT"); |
17 | if (p != NULL) { |
18 | strncpy(buf, p, size); |
19 | buf[size - 1] = 0; |
20 | p = buf + strlen(buf); |
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21 | } |
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22 | else { |
23 | ret = readlink("/proc/self/exe", buf, size - 1); |
24 | if (ret < 0) { |
25 | perror("readlink"); |
26 | goto err; |
27 | } |
28 | buf[ret] = 0; |
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29 | |
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30 | p = strrchr(buf, '/'); |
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31 | if (p == NULL) |
32 | goto err; |
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33 | p++; |
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34 | } |
35 | |
36 | snprintf(p, size - (p - buf), "%s", file); |
37 | |
38 | return 0; |
39 | |
40 | err: |
41 | fprintf(stderr, "ginge: can't determine root, buf: \"%s\"\n", buf); |
42 | return -1; |
43 | } |
44 | |