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commit b8089eabc28d665cba462c29aabdb159f0f153a6
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Author: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Tue May 28 13:38:13 2024 +0200
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Fix more compiler warnings
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Fix the following warnings observed when -O2 and -D_FORTIFY_SOURCE=2 are
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added to CFLAGS.
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synce_dev.c: In function ‘rebuild_inputs_prio’:
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synce_dev.c:610:28: warning: ‘best_c_idx’ may be used uninitialized [-Wmaybe-uninitialized]
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610 | all[best_c_idx] = NULL;
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| ^
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synce_dev.c:582:39: note: ‘best_c_idx’ was declared here
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582 | int i = 0, prio_count = 0, j, best_c_idx, ret;
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| ^~~~~~~~~~
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synce_manager.c: In function ‘synce_manager_server_thread’:
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synce_manager.c:260:9: warning: ‘strncpy’ specified bound 108 equals destination size [-Wstringop-truncation]
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260 | strncpy(server.sun_path, synce_clock_get_socket_path(clk),
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| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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261 | sizeof(server.sun_path));
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| ~~~~~~~~~~~~~~~~~~~~~~~~
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synce_manager.c:343:20: warning: ‘ret’ may be used uninitialized [-Wmaybe-uninitialized]
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343 | if (!ret)
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| ^
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synce_manager.c:241:26: note: ‘ret’ was declared here
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241 | int tlv_num = 0, ret, i, resp_len, bytes_read;
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| ^~~
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synce_manager.c: In function ‘synce_manager_server_thread’:
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synce_manager.c:346:25: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
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346 | write(new_socket, response, resp_len);
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| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
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diff --git a/synce_dev.c b/synce_dev.c
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index fc784ed..5e2bbb9 100644
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--- a/synce_dev.c
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+++ b/synce_dev.c
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@@ -579,7 +579,7 @@ static bool source_invalid(struct synce_clock_source *c)
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int rebuild_inputs_prio(struct synce_dev *dev)
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{
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struct synce_clock_source *c, *best_c, **all, **prioritized;
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- int i = 0, prio_count = 0, j, best_c_idx, ret;
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+ int i = 0, prio_count = 0, j, best_c_idx = 0, ret;
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uint32_t prio;
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all = calloc(dev->num_clock_sources, sizeof(*all));
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diff --git a/synce_manager.c b/synce_manager.c
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index b9ba08d..598ef7e 100644
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--- a/synce_manager.c
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+++ b/synce_manager.c
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@@ -257,8 +257,8 @@ static void *synce_manager_server_thread(void *arg)
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}
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server.sun_family = AF_UNIX;
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- strncpy(server.sun_path, synce_clock_get_socket_path(clk),
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- sizeof(server.sun_path));
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+ snprintf(server.sun_path, sizeof(server.sun_path), "%s",
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+ synce_clock_get_socket_path(clk));
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if (bind(server_fd, (struct sockaddr *)&server, sizeof(server)) < 0) {
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pr_err("%s Bind failed", __func__);
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@@ -289,10 +289,12 @@ static void *synce_manager_server_thread(void *arg)
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bytes_read = recv(new_socket, command, MAX_COMMAND_SIZE, 0);
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if (bytes_read <= 0) {
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synce_manager_generate_err_tlv(&err_tlv, "NULL command");
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+ ret = -1;
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goto return_response;
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} else if (bytes_read > MAX_COMMAND_SIZE) {
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synce_manager_generate_err_tlv(&err_tlv,
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"Command size exceeds MAX_COMMAND_SIZE");
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+ ret = -1;
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goto return_response;
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}
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ret = synce_manager_parse_input(command, bytes_read, &tlv_array,
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@@ -340,8 +342,8 @@ return_response:
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if (tlv_array)
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free((void *)tlv_array);
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- if (!ret)
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- write(new_socket, response, resp_len);
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+ if (!ret && write(new_socket, response, resp_len) != resp_len)
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+ ret = -1;
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close(new_socket);
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}
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