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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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9
example/ssh2.c
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@ -70,7 +70,7 @@ static void kbd_callback(const char *name, int name_len,
(void)instruction_len;
if(num_prompts == 1) {
responses[0].text = strdup(password);
responses[0].length = strlen(password);
responses[0].length = (unsigned int)strlen(password);
}
(void)prompts;
(void)abstract;
@ -79,7 +79,7 @@ static void kbd_callback(const char *name, int name_len,
int main(int argc, char *argv[])
{
unsigned long hostaddr;
uint32_t hostaddr;
libssh2_socket_t sock;
int rc, i, auth_pw = 0;
struct sockaddr_in sin;
@ -171,7 +171,8 @@ int main(int argc, char *argv[])
fprintf(stderr, "\n");
/* check what authentication methods are available */
userauthlist = libssh2_userauth_list(session, username, strlen(username));
userauthlist = libssh2_userauth_list(session, username,
(unsigned int)strlen(username));
fprintf(stderr, "Authentication methods: %s\n", userauthlist);
if(strstr(userauthlist, "password") != NULL) {
auth_pw |= 1;
@ -315,7 +316,7 @@ int main(int argc, char *argv[])
char buf[1024];
ssize_t err = libssh2_channel_read(channel, buf, sizeof(buf));
if(err < 0)
fprintf(stderr, "Unable to read response: %zd\n", err);
fprintf(stderr, "Unable to read response: %d\n", (int)err);
else {
fwrite(buf, 1, err, stdout);
}