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example, tests: address compiler warnings

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Fix or silence all C compiler warnings discovered with (or without)
`PICKY_COMPILER=ON` (in CMake). This means all warnings showing up in
CI (gcc, clang, MSVS 2013/2015), in local tests on macOS (clang 14) and
Windows cross-builds using gcc (12) and llvm/clang (14/15).

Also fix the expression `nread -= nread` in `sftp_RW_nonblock.c`.

Cherry-picked from: #846
Closes #861
This commit is contained in:
Viktor Szakats
2023-03-20 15:46:12 +00:00
parent ec0a51db1f
commit b13936bd6a
47 changed files with 343 additions and 262 deletions
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28
example/sftp_nonblock.c
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@ -49,6 +49,10 @@
#pragma warning(disable:4127)
#endif
#ifdef WIN32
#define write(f, b, c) write((f), (b), (unsigned int)(c))
#endif
#ifdef HAVE_GETTIMEOFDAY
/* diff in ms */
static long tvdiff(struct timeval newer, struct timeval older)
@ -83,14 +87,14 @@ static int waitsocket(libssh2_socket_t socket_fd, LIBSSH2_SESSION *session)
if(dir & LIBSSH2_SESSION_BLOCK_OUTBOUND)
writefd = &fd;
rc = select(socket_fd + 1, readfd, writefd, NULL, &timeout);
rc = select((int)(socket_fd + 1), readfd, writefd, NULL, &timeout);
return rc;
}
int main(int argc, char *argv[])
{
unsigned long hostaddr;
uint32_t hostaddr;
libssh2_socket_t sock;
int i, auth_pw = 1;
struct sockaddr_in sin;
@ -105,7 +109,7 @@ int main(int argc, char *argv[])
long time_ms;
#endif
int rc;
int total = 0;
libssh2_struct_stat_size total = 0;
int spin = 0;
LIBSSH2_SFTP *sftp_session;
LIBSSH2_SFTP_HANDLE *sftp_handle;
@ -258,16 +262,17 @@ int main(int argc, char *argv[])
fprintf(stderr, "libssh2_sftp_open() is done, now receive data!\n");
do {
char mem[1024*24];
ssize_t nread;
/* loop until we fail */
while((rc = libssh2_sftp_read(sftp_handle, mem,
sizeof(mem))) == LIBSSH2_ERROR_EAGAIN) {
while((nread = libssh2_sftp_read(sftp_handle, mem,
sizeof(mem))) == LIBSSH2_ERROR_EAGAIN) {
spin++;
waitsocket(sock, session); /* now we wait */
}
if(rc > 0) {
total += rc;
write(1, mem, rc);
if(nread > 0) {
total += nread;
write(1, mem, nread);
}
else {
break;
@ -277,11 +282,10 @@ int main(int argc, char *argv[])
#ifdef HAVE_GETTIMEOFDAY
gettimeofday(&end, NULL);
time_ms = tvdiff(end, start);
fprintf(stderr, "Got %d bytes in %ld ms = %.1f bytes/sec spin: %d\n",
total,
time_ms, total/(time_ms/1000.0), spin);
fprintf(stderr, "Got %ld bytes in %ld ms = %.1f bytes/sec spin: %d\n",
(long)total, time_ms, (double)total/(time_ms/1000.0), spin);
#else
fprintf(stderr, "Got %d bytes spin: %d\n", total, spin);
fprintf(stderr, "Got %ld bytes spin: %d\n", (long)total, spin);
#endif
libssh2_sftp_close(sftp_handle);