mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-09 00:00:04 +01:00
c9731c5f17
This is a huge patch that should be a global NOP. For unix type platforms it enables -Wconversion to issue warnings (-> error) for all automatic casts that seem less than ideal but are normally concealed by the toolchain. This is things like passing an int to a size_t argument. Once enabled, I went through all args on my default build (which build most things) and tried to make the removed default cast explicit. With that approach it neither change nor bloat the code, since it compiles to whatever it was doing before, just with the casts made explicit... in a few cases I changed some length args from int to size_t but largely left the causes alone. From now on, new code that is relying on less than ideal casting will complain and nudge me to improve it by warnings.
137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "private-lib-core.h"
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void
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lws_set_fops(struct lws_context *context, const struct lws_plat_file_ops *fops)
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{
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context->fops = fops;
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}
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lws_filepos_t
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lws_vfs_tell(lws_fop_fd_t fop_fd)
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{
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return fop_fd->pos;
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}
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lws_filepos_t
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lws_vfs_get_length(lws_fop_fd_t fop_fd)
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{
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return fop_fd->len;
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}
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uint32_t
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lws_vfs_get_mod_time(lws_fop_fd_t fop_fd)
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{
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return fop_fd->mod_time;
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}
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lws_fileofs_t
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lws_vfs_file_seek_set(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
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{
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lws_fileofs_t ofs;
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ofs = fop_fd->fops->LWS_FOP_SEEK_CUR(fop_fd,
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offset - (lws_fileofs_t)fop_fd->pos);
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return ofs;
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}
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lws_fileofs_t
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lws_vfs_file_seek_end(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
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{
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return fop_fd->fops->LWS_FOP_SEEK_CUR(fop_fd,
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(lws_fileofs_t)fop_fd->len + (lws_fileofs_t)fop_fd->pos + offset);
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}
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const struct lws_plat_file_ops *
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lws_vfs_select_fops(const struct lws_plat_file_ops *fops, const char *vfs_path,
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const char **vpath)
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{
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const struct lws_plat_file_ops *pf;
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const char *p = vfs_path;
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int n;
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*vpath = NULL;
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/* no non-platform fops, just use that */
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if (!fops->next)
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return fops;
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/*
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* scan the vfs path looking for indications we are to be
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* handled by a specific fops
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*/
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while (p && *p) {
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if (*p != '/') {
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p++;
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continue;
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}
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/* the first one is always platform fops, so skip */
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pf = fops->next;
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while (pf) {
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n = 0;
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while (n < (int)LWS_ARRAY_SIZE(pf->fi) && pf->fi[n].sig) {
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if (p >= vfs_path + pf->fi[n].len)
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if (!strncmp(p - (pf->fi[n].len - 1),
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pf->fi[n].sig,
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(unsigned int)(pf->fi[n].len - 1))) {
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*vpath = p + 1;
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return pf;
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}
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n++;
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}
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pf = pf->next;
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}
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p++;
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}
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return fops;
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}
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lws_fop_fd_t LWS_WARN_UNUSED_RESULT
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lws_vfs_file_open(const struct lws_plat_file_ops *fops, const char *vfs_path,
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lws_fop_flags_t *flags)
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{
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const char *vpath = "";
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const struct lws_plat_file_ops *selected;
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selected = lws_vfs_select_fops(fops, vfs_path, &vpath);
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return selected->LWS_FOP_OPEN(fops, vfs_path, vpath, flags);
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}
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struct lws_plat_file_ops *
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lws_get_fops(struct lws_context *context)
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{
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return (struct lws_plat_file_ops *)context->fops;
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}
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