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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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13
example/sftp_write.c
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@ -41,7 +41,7 @@
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;
@ -57,6 +57,7 @@ int main(int argc, char *argv[])
LIBSSH2_SFTP_HANDLE *sftp_handle;
char mem[1024*100];
size_t nread;
ssize_t nwritten;
char *ptr;
#ifdef WIN32
@ -197,14 +198,14 @@ int main(int argc, char *argv[])
do {
/* write data in a loop until we block */
rc = libssh2_sftp_write(sftp_handle, ptr, nread);
if(rc < 0)
nwritten = libssh2_sftp_write(sftp_handle, ptr, nread);
if(nwritten < 0)
break;
ptr += rc;
nread -= rc;
ptr += nwritten;
nread -= nwritten;
} while(nread);
} while(rc > 0);
} while(nwritten > 0);
libssh2_sftp_close(sftp_handle);
libssh2_sftp_shutdown(sftp_session);