From c4da6eed78d30670d3602f746030e03c46137ead Mon Sep 17 00:00:00 2001 From: Raimo Niskanen Date: Mon, 2 Sep 2013 15:10:18 +0200 Subject: Fix EV_* macros and functions signedness flaws --- erts/emulator/drivers/common/efile_drv.c | 119 ++++++++++++++++--------------- 1 file changed, 60 insertions(+), 59 deletions(-) (limited to 'erts/emulator/drivers') diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c index c997fe1bf9..8de578d8b7 100644 --- a/erts/emulator/drivers/common/efile_drv.c +++ b/erts/emulator/drivers/common/efile_drv.c @@ -542,84 +542,84 @@ static void *ef_safe_realloc(void *op, Uint s) */ /* char EV_CHAR_P(ErlIOVec *ev, int p, int q) */ -#define EV_CHAR_P(ev, p, q) \ - (((char *)(ev)->iov[(q)].iov_base) + (p)) +#define EV_CHAR_P(ev, p, q) \ + (((char *)(ev)->iov[q].iov_base) + (p)) /* int EV_GET_CHAR(ErlIOVec *ev, char *p, int *pp, int *qp) */ #define EV_GET_CHAR(ev, p, pp, qp) efile_ev_get_char(ev, p ,pp, qp) static int -efile_ev_get_char(ErlIOVec *ev, char *p, int *pp, int *qp) { - if (*(pp)+1 <= (ev)->iov[*(qp)].iov_len) { - *(p) = *EV_CHAR_P(ev, *(pp), *(qp)); - if (*(pp)+1 < (ev)->iov[*(qp)].iov_len) - *(pp) = *(pp)+1; - else { - (*(qp))++; - *pp = 0; +efile_ev_get_char(ErlIOVec *ev, char *p, size_t *pp, size_t *qp) { + if (*pp + 1 <= ev->iov[*qp].iov_len) { + *p = *EV_CHAR_P(ev, *pp, *qp); + if (*pp + 1 < ev->iov[*qp].iov_len) + *pp += 1; + else { + *qp += 1; + *pp = 0; + } + return !0; } - return !0; - } - return 0; + return 0; } /* Uint32 EV_UINT32(ErlIOVec *ev, int p, int q)*/ -#define EV_UINT32(ev, p, q) \ - ((Uint32) *(((unsigned char *)(ev)->iov[(q)].iov_base) + (p))) +#define EV_UINT32(ev, p, q) \ + ((Uint32) ((unsigned char *)(ev)->iov[q].iov_base)[p]) /* int EV_GET_UINT32(ErlIOVec *ev, Uint32 *p, int *pp, int *qp) */ -#define EV_GET_UINT32(ev, p, pp, qp) efile_ev_get_uint32(ev,p,pp,qp) +#define EV_GET_UINT32(ev, p, pp, qp) efile_ev_get_uint32(ev, p, pp, qp) static int -efile_ev_get_uint32(ErlIOVec *ev, Uint32 *p, int *pp, int *qp) { - if (*(pp)+4 <= (ev)->iov[*(qp)].iov_len) { - *(p) = (EV_UINT32(ev, *(pp), *(qp)) << 24) - | (EV_UINT32(ev, *(pp)+1, *(qp)) << 16) - | (EV_UINT32(ev, *(pp)+2, *(qp)) << 8) - | (EV_UINT32(ev, *(pp)+3, *(qp))); - if (*(pp)+4 < (ev)->iov[*(qp)].iov_len) - *(pp) = *(pp)+4; - else { - (*(qp))++; - *pp = 0; +efile_ev_get_uint32(ErlIOVec *ev, Uint32 *p, size_t *pp, size_t *qp) { + if (*pp + 4 <= ev->iov[*qp].iov_len) { + *p = (EV_UINT32(ev, *pp, *qp) << 24) + | (EV_UINT32(ev, *pp + 1, *qp) << 16) + | (EV_UINT32(ev, *pp + 2, *qp) << 8) + | (EV_UINT32(ev, *pp + 3, *qp)); + if (*pp + 4 < ev->iov[*qp].iov_len) + *pp += 4; + else { + *qp += 1; + *pp = 0; + } + return !0; } - return !0; - } - return 0; + return 0; } /* Uint64 EV_UINT64(ErlIOVec *ev, int p, int q)*/ -#define EV_UINT64(ev, p, q) \ - ((Uint64) *(((unsigned char *)(ev)->iov[(q)].iov_base) + (p))) +#define EV_UINT64(ev, p, q) \ + ((Uint64) ((unsigned char *)(ev)->iov[q].iov_base)[p]) /* int EV_GET_UINT64(ErlIOVec *ev, Uint64 *p, int *pp, int *qp) */ -#define EV_GET_UINT64(ev, p, pp, qp) efile_ev_get_uint64(ev,p,pp,qp) +#define EV_GET_UINT64(ev, p, pp, qp) efile_ev_get_uint64(ev, p, pp, qp) static int -efile_ev_get_uint64(ErlIOVec *ev, Uint64 *p, int *pp, int *qp) { - if (*(pp)+8 <= (ev)->iov[*(qp)].iov_len) { - *(p) = (EV_UINT64(ev, *(pp), *(qp)) << 56) - | (EV_UINT64(ev, *(pp)+1, *(qp)) << 48) - | (EV_UINT64(ev, *(pp)+2, *(qp)) << 40) - | (EV_UINT64(ev, *(pp)+3, *(qp)) << 32) - | (EV_UINT64(ev, *(pp)+4, *(qp)) << 24) - | (EV_UINT64(ev, *(pp)+5, *(qp)) << 16) - | (EV_UINT64(ev, *(pp)+6, *(qp)) << 8) - | (EV_UINT64(ev, *(pp)+7, *(qp))); - if (*(pp)+8 < (ev)->iov[*(qp)].iov_len) - *(pp) = *(pp)+8; - else { - (*(qp))++; - *pp = 0; +efile_ev_get_uint64(ErlIOVec *ev, Uint64 *p, size_t *pp, size_t *qp) { + if (*pp + 8 <= ev->iov[*qp].iov_len) { + *p = (EV_UINT64(ev, *pp, *qp) << 56) + | (EV_UINT64(ev, *pp + 1, *qp) << 48) + | (EV_UINT64(ev, *pp + 2, *qp) << 40) + | (EV_UINT64(ev, *pp + 3, *qp) << 32) + | (EV_UINT64(ev, *pp + 4, *qp) << 24) + | (EV_UINT64(ev, *pp + 5, *qp) << 16) + | (EV_UINT64(ev, *pp + 6, *qp) << 8) + | (EV_UINT64(ev, *pp + 7, *qp)); + if (*pp + 8 < ev->iov[*qp].iov_len) + *pp += 8; + else { + *qp += 1; + *pp = 0; + } + return !0; } - return !0; - } - return 0; + return 0; } /* int EV_GET_SINT64(ErlIOVec *ev, Uint64 *p, int *pp, int *qp) */ -#define EV_GET_SINT64(ev, p, pp, qp) efile_ev_get_sint64(ev,p,pp,qp) +#define EV_GET_SINT64(ev, p, pp, qp) efile_ev_get_sint64(ev, p, pp, qp) static int -efile_ev_get_sint64(ErlIOVec *ev, Sint64 *p, int *pp, int *qp) { - Uint64 *tmp = (Uint64*)p; - return EV_GET_UINT64(ev,tmp,pp,qp); +efile_ev_get_sint64(ErlIOVec *ev, Sint64 *p, size_t *pp, size_t *qp) { + Uint64 *tmp = (Uint64*)p; + return EV_GET_UINT64(ev, tmp, pp, qp); } #if 0 @@ -1139,7 +1139,7 @@ static void invoke_read(void *data) read_size = erts_gzread((gzFile)d->fd, d->c.read.binp->orig_bytes + d->c.read.bin_offset, size); - status = (read_size != -1); + status = (read_size != (size_t) -1); if (!status) { d->errInfo.posix_errno = EIO; } @@ -1213,7 +1213,7 @@ static void invoke_read_line(void *data) d->c.read_line.binp->orig_bytes + d->c.read_line.read_offset + d->c.read_line.read_size, size); - status = (read_size != -1); + status = (read_size != (size_t) -1); if (!status) { d->errInfo.posix_errno = EIO; } @@ -1707,8 +1707,9 @@ static void invoke_pwritev(void *data) { ASSERT(written == size); d->again = 0; } - } else + } else { ASSERT(written >= FILE_SEGMENT_WRITE); + } MUTEX_LOCK(d->c.writev.q_mtx); driver_deq(d->c.pwritev.port, written); @@ -3205,7 +3206,7 @@ static void file_outputv(ErlDrvData e, ErlIOVec *ev) { file_descriptor* desc = (file_descriptor*)e; char command; - int p, q; + size_t p, q; int err; struct t_data *d = NULL; #ifdef USE_VM_PROBES -- cgit v1.2.3