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xioopen() checks r/w mode of addresses

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This commit is contained in:
Gerhard Rieger 2023-06-21 20:44:29 +02:00
parent 7b66b53f93
commit e1aadc577d
9 changed files with 82 additions and 62 deletions

7
xioopen.c
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@ -603,6 +603,7 @@ static xiosingle_t *xioparse_single(const char **addr) {
int xioopen_single(xiofile_t *xfd, int xioflags) {
struct single *sfd = &xfd->stream;
const struct addrdesc *addrdesc;
const char *modetext[4] = { "none", "read-only", "write-only", "read-write" } ;
int result;
/* Values to be saved until xioopen() is finished */
#if HAVE_RESOLV_H
@ -642,6 +643,11 @@ int xioopen_single(xiofile_t *xfd, int xioflags) {
return STAT_NORETRY;
#endif /* HAVE_RESOLV_H */
addrdesc = xfd->stream.addr;
/* Check if address supports required data directions */
if (((xioflags+1)&XIO_ACCMODE) & ~(addrdesc->directions)) {
Warn2("address is opened in %s mode but only supports %s", modetext[(xioflags+1)&XIO_ACCMODE], modetext[addrdesc->directions]);
}
if ((xioflags&XIO_ACCMODE) == XIO_RDONLY) {
xfd->tag = XIO_TAG_RDONLY;
} else if ((xioflags&XIO_ACCMODE) == XIO_WRONLY) {
@ -653,7 +659,6 @@ int xioopen_single(xiofile_t *xfd, int xioflags) {
}
xfd->stream.flags &= (~XIO_ACCMODE);
xfd->stream.flags |= (xioflags & XIO_ACCMODE);
addrdesc = xfd->stream.addr;
result = (*addrdesc->func)(xfd->stream.argc, xfd->stream.argv,
xfd->stream.opts, xioflags, xfd,
addrdesc->groups, addrdesc->arg1,