diff options
Diffstat (limited to 'pseudo_util.c')
| -rw-r--r-- | pseudo_util.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/pseudo_util.c b/pseudo_util.c index a57f8ac..55e0488 100644 --- a/pseudo_util.c +++ b/pseudo_util.c @@ -580,3 +580,33 @@ pseudo_sys_path_max(void) { } return pseudo_sys_max_pathlen; } + +/* complicated because in theory you can have modes like * 'ab+' + * which is the same as 'a+' in POSIX. The first letter really does have + * to be one of r, w, a, though. + */ +int +pseudo_access_fopen(const char *mode) { + int access = 0; + switch (*mode) { + case 'a': + access |= (PSA_APPEND | PSA_WRITE); + if (mode[1] == '+' || (mode[1] == 'b' && mode[2] == '+')) + access |= PSA_READ; + break; + case 'r': + access |= PSA_READ; + if (mode[1] == '+' || (mode[1] == 'b' && mode[2] == '+')) + access |= PSA_WRITE; + break; + case 'w': + access |= PSA_WRITE; + if (mode[1] == '+' || (mode[1] == 'b' && mode[2] == '+')) + access |= PSA_READ; + break; + default: + access = -1; + break; + } + return access; +} |