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provide safe way out of another blocking point

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itsmattkc 2024-05-20 12:01:49 -07:00
parent 03786c6fd5
commit 8864476597
1 changed files with 5 additions and 0 deletions
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5
server/wpa.c
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@ -45,6 +45,7 @@ int start_wpa_supplicant(const char *wireless_interface, const char *config_file
// Merge current working directory with wpa_supplicant name
snprintf(wpa_buf, path_size, "%s/%s", path_buf, "wpa_supplicant_drc");
print_info(wpa_buf);
free(path_buf);
const char *argv[] = {wpa_buf, "-Dnl80211", "-i", wireless_interface, "-c", config_file, NULL};
@ -68,6 +69,8 @@ int start_wpa_supplicant(const char *wireless_interface, const char *config_file
do {
nbytes = read(pipe, buf + total_nbytes, expected_len - total_nbytes);
total_nbytes += nbytes;
sleep(1);
if (is_interrupted()) goto give_up;
} while (total_nbytes < expected_len);
attempts++;
@ -80,6 +83,7 @@ int start_wpa_supplicant(const char *wireless_interface, const char *config_file
// Haven't gotten success message (yet), wait and try again
sleep(1);
if (is_interrupted()) goto give_up;
} while (attempts < max_attempts);
// I'm not sure why, but closing this pipe breaks wpa_supplicant in subtle ways, so just leave it.
@ -90,6 +94,7 @@ int start_wpa_supplicant(const char *wireless_interface, const char *config_file
return VANILLA_SUCCESS;
} else {
// Give up
give_up:
kill((*pid), SIGINT);
return VANILLA_ERROR;
}