Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */ |
| 2 | #include |
||
| 3 | #include |
||
| 4 | #include |
||
| 5 | |||
| 6 | int |
||
| 7 | setenv (const char *var, const char *val, int replace) |
||
| 8 | { |
||
| 9 | char *prev; |
||
| 10 | |||
| 11 | if (var == (char *)0 || val == (char *)0) |
||
| 12 | return -1; |
||
| 13 | |||
| 14 | if ((prev = getenv (var)) && !replace) |
||
| 15 | return 0; |
||
| 16 | else |
||
| 17 | { |
||
| 18 | size_t l_var = strlen (var); |
||
| 19 | char *envstr = (char *)alloca (l_var + strlen (val) + 2); |
||
| 20 | char *peq = strchr (var, '='); |
||
| 21 | |||
| 22 | if (*val == '=') |
||
| 23 | ++val; |
||
| 24 | if (peq) |
||
| 25 | l_var = peq - var; |
||
| 26 | |||
| 27 | strncpy (envstr, var, l_var); |
||
| 28 | envstr[l_var++] = '='; |
||
| 29 | strcpy (envstr + l_var, val); |
||
| 30 | |||
| 31 | return putenv (envstr); |
||
| 32 | } |
||
| 33 | } |