diff options
| author | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-04-17 12:42:25 -0600 |
|---|---|---|
| committer | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-04-18 11:26:44 -0600 |
| commit | 740bffed4da51c4d46a1295baabe3bd249cf9138 (patch) | |
| tree | b38e30e3eef47ecc58f7162e2bfa84bbb885cde3 /lib9p/srv.c | |
| parent | b44e1813b9a39827ebe5b8ade6dd68713925c58b (diff) | |
lib9p_srv: Set Twrite->byte_offset to zero if append-only
Diffstat (limited to 'lib9p/srv.c')
| -rw-r--r-- | lib9p/srv.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib9p/srv.c b/lib9p/srv.c index 9dcf605..9adaefa 100644 --- a/lib9p/srv.c +++ b/lib9p/srv.c @@ -92,6 +92,7 @@ struct srv_pathinfo { #define FIDFLAG_OPEN_R (1<<0) #define FIDFLAG_OPEN_W (1<<1) #define FIDFLAG_RCLOSE (1<<2) +#define FIDFLAG_APPEND (1<<3) #define FIDFLAG_OPEN (FIDFLAG_OPEN_R|FIDFLAG_OPEN_W) struct srv_fidinfo { @@ -1046,8 +1047,10 @@ static void handle_Topen(struct srv_req *ctx, LIB9P_ERRNO_L_EEXIST, "exclusive file is already opened"); goto topen_return; } - if (stat.file_mode & LIB9P_DM_APPEND) + if (stat.file_mode & LIB9P_DM_APPEND) { + fidflags |= FIDFLAG_APPEND; reqmode = reqmode & ~LIB9P_O_TRUNC; + } uint8_t perm_bits = 0; bool rd = false, wr = false; switch (reqmode & LIB9P_O_MODE_MASK) { @@ -1216,6 +1219,8 @@ static void handle_Twrite(struct srv_req *ctx, LIB9P_ERRNO_L_EINVAL, "FID not open for writing"); return; } + if (fidinfo->flags & FIDFLAG_APPEND) + req->offset = 0; /* Do it. */ ctx->user = srv_userid_incref(fidinfo->user); |