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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| 2 | #include |
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| 3 | #include |
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| 4 | #include |
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| 5 | #include |
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| 6 | |||
| 7 | static int init = 0; |
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| 8 | static char *grp = 0; |
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| 9 | static struct group g; |
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| 10 | static char *mem[2]; |
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| 11 | static char def_name[] = "user"; |
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| 12 | static char def_grp[] = "dos"; |
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| 13 | |||
| 14 | static void |
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| 15 | grp_init(void) |
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| 16 | { |
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| 17 | char *p; |
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| 18 | p = getenv("USER"); |
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| 19 | if (p == 0) |
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| 20 | p = getenv("LOGNAME"); |
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| 21 | if (p) |
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| 22 | { |
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| 23 | mem[0] = (char *)malloc(strlen(p) + 1); |
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| 24 | if (mem[0] == 0) |
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| 25 | mem[0] = def_name; |
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| 26 | else |
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| 27 | strcpy(mem[0], p); |
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| 28 | } |
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| 29 | else |
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| 30 | mem[0] = def_name; |
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| 31 | mem[1] = 0; |
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| 32 | |||
| 33 | p = getenv("GROUP"); |
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| 34 | if (p) |
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| 35 | { |
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| 36 | grp = (char *)malloc(strlen(p)+1); |
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| 37 | if (grp == 0) |
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| 38 | grp = def_grp; |
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| 39 | else |
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| 40 | strcpy(grp, p); |
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| 41 | } |
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| 42 | else |
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| 43 | grp = def_grp; |
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| 44 | |||
| 45 | g.gr_gid = getgid(); |
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| 46 | g.gr_mem = mem; |
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| 47 | g.gr_name = grp; |
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| 48 | } |
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| 49 | |||
| 50 | struct group * |
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| 51 | getgrgid(gid_t gid) |
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| 52 | { |
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| 53 | if (gid != getgid()) |
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| 54 | return 0; |
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| 55 | if (init == 0) |
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| 56 | grp_init(); |
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| 57 | return &g; |
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| 58 | } |
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| 59 | |||
| 60 | struct group * |
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| 61 | getgrnam(const char *name) |
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| 62 | { |
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| 63 | if (init == 0) |
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| 64 | grp_init(); |
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| 65 | if (strcmp(name, grp)) |
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| 66 | return 0; |
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| 67 | return &g; |
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| 68 | } |