diff options
Diffstat (limited to 'pp_sys.c')
| -rw-r--r-- | pp_sys.c | 14 |
1 files changed, 8 insertions, 6 deletions
@@ -1570,12 +1570,12 @@ PP(pp_sysopen) PP(pp_sysread) { dVAR; dSP; dMARK; dORIGMARK; dTARGET; - int offset; + SSize_t offset; IO *io; char *buffer; + STRLEN orig_size; SSize_t length; SSize_t count; - Sock_size_t bufsize; SV *bufsv; STRLEN blen; int fp_utf8; @@ -1636,6 +1636,7 @@ PP(pp_sysread) #ifdef HAS_SOCKET if (PL_op->op_type == OP_RECV) { + Sock_size_t bufsize; char namebuf[MAXPATHLEN]; #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__) bufsize = sizeof (struct sockaddr_in); @@ -1679,7 +1680,7 @@ PP(pp_sysread) blen = sv_len_utf8(bufsv); } if (offset < 0) { - if (-offset > (int)blen) + if (-offset > (SSize_t)blen) DIE(aTHX_ "Offset outside string"); offset += blen; } @@ -1691,15 +1692,15 @@ PP(pp_sysread) offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer; } more_bytes: - bufsize = SvCUR(bufsv); + orig_size = SvCUR(bufsv); /* Allocating length + offset + 1 isn't perfect in the case of reading bytes from a byte file handle into a UTF8 buffer, but it won't harm us unduly. (should be 2 * length + offset + 1, or possibly something longer if PL_encoding is true) */ buffer = SvGROW(bufsv, (STRLEN)(length+offset+1)); - if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */ - Zero(buffer+bufsize, offset-bufsize, char); + if (offset > 0 && offset > (SSize_t)orig_size) { /* Zero any newly allocated space */ + Zero(buffer+orig_size, offset-orig_size, char); } buffer = buffer + offset; if (!buffer_utf8) { @@ -1733,6 +1734,7 @@ PP(pp_sysread) else #ifdef HAS_SOCKET__bad_code_maybe if (IoTYPE(io) == IoTYPE_SOCKET) { + Sock_size_t bufsize; char namebuf[MAXPATHLEN]; #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS) bufsize = sizeof (struct sockaddr_in); |