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check close() return code after writing to file

personal/stbuehler/mod-csrf-old
Glenn Strauss 2016-05-10 22:17:22 -04:00
parent 29e7468d46
commit a9568d0ad6
3 changed files with 32 additions and 10 deletions
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23
src/chunk.c
View File

@ -486,9 +486,15 @@ static int chunkqueue_append_to_tempfile(server *srv, chunkqueue *dest, const ch
if (dst_c->file.length >= (off_t)dest->upload_temp_file_size) {
/* the chunk is too large now, close it */
close(dst_c->file.fd);
int rc = close(dst_c->file.fd);
dst_c->file.fd = -1;
dst_c = NULL;
if (0 != rc) {
log_error_write(srv, __FILE__, __LINE__, "sbss",
"close() temp-file", dst_c->file.name, "failed:",
strerror(errno));
return -1;
}
}
} else {
dst_c = NULL;
@ -502,8 +508,7 @@ static int chunkqueue_append_to_tempfile(server *srv, chunkqueue *dest, const ch
*/
log_error_write(srv, __FILE__, __LINE__, "ss",
"denying upload as opening temp-file for upload failed:",
strerror(errno));
"opening temp-file failed:", strerror(errno));
return -1;
}
@ -529,16 +534,22 @@ static int chunkqueue_append_to_tempfile(server *srv, chunkqueue *dest, const ch
int retry = (errno == ENOSPC && dest->tempdirs && ++dest->tempdir_idx < dest->tempdirs->used);
if (!retry) {
log_error_write(srv, __FILE__, __LINE__, "sbs",
"denying upload as writing to file failed:",
dst_c->file.name, strerror(errno));
"write() temp-file", dst_c->file.name, "failed:",
strerror(errno));
}
if (0 == chunk_remaining_length(dst_c)) {
/*(remove empty chunk and unlink tempfile)*/
chunkqueue_remove_empty_chunks(dest);
} else {/*(close tempfile; avoid later attempts to append)*/
close(dst_c->file.fd);
int rc = close(dst_c->file.fd);
dst_c->file.fd = -1;
if (0 != rc) {
log_error_write(srv, __FILE__, __LINE__, "sbss",
"close() temp-file", dst_c->file.name, "failed:",
strerror(errno));
return -1;
}
}
if (!retry) return -1;

7
src/mod_compress.c
View File

@ -594,10 +594,13 @@ static int deflate_file_to_file(server *srv, connection *con, plugin_data *p, bu
#endif
free(start);
close(ofd);
close(ifd);
if (ret != 0) {
if (0 != close(ofd) || ret != 0) {
if (0 == ret) {
log_error_write(srv, __FILE__, __LINE__, "sbss", "writing cachefile", p->ofn, "failed:", strerror(errno));
}
/* Remove the incomplete cache file, so that later hits aren't served from it */
if (-1 == unlink(p->ofn->ptr)) {
log_error_write(srv, __FILE__, __LINE__, "sbss", "unlinking incomplete cachefile", p->ofn, "failed:", strerror(errno));

12
src/mod_webdav.c
View File

@ -722,7 +722,11 @@ static int webdav_copy_file(server *srv, connection *con, plugin_data *p, physic
free(data);
close(ifd);
close(ofd);
if (0 != close(ofd)) {
if (0 == status) status = (errno == ENOSPC) ? 507 : 403;
log_error_write(srv, __FILE__, __LINE__, "sbss",
"close ", dst->path, "failed: ", strerror(errno));
}
#ifdef USE_PROPPATCH
if (0 == status) {
@ -1848,7 +1852,11 @@ SUBREQUEST_FUNC(mod_webdav_subrequest_handler_huge) {
break;
}
}
close(fd);
if (0 != close(fd)) {
log_error_write(srv, __FILE__, __LINE__, "sbss",
"close ", con->physical.path, "failed: ", strerror(errno));
return HANDLER_ERROR;
}
return HANDLER_FINISHED;
}