Signed-off-by: Marek Lindner lindner_marek@yahoo.de --- functions.c | 75 +++++++++++++++++++++++++++++------------------------------ sys.c | 11 ++++++++ 2 files changed, 48 insertions(+), 38 deletions(-)

diff --git a/functions.c b/functions.c index d08c7a0..c78e408 100644 --- a/functions.c +++ b/functions.c @@ -36,15 +36,18 @@ #include "functions.h" #include "bat-hosts.h" #include "sys.h" +#include "debug.h"

static struct timeval start_time; static char *host_name; char *line_ptr = NULL;

-const char *sysfs_compile_out_param[] = { +const char *fs_compile_out_param[] = { SYS_LOG, SYS_LOG_LEVEL, batctl_settings[BATCTL_SETTINGS_BLA].sysfs_name, + batctl_debug_tables[BATCTL_TABLE_BLA_CLAIMS].debugfs_name, + batctl_debug_tables[BATCTL_TABLE_BLA_BACKBONES].debugfs_name, NULL, };

@@ -114,23 +117,42 @@ int file_exists(const char *fpath) return stat(fpath, &st) == 0; }

-static int check_sys_dir(char *dir) +static void file_open_problem_dbg(char *dir, char *fname, char *full_path) { + const char **ptr; struct stat st;

- if (stat("/sys/", &st) != 0) { - printf("Error - the folder '/sys/' was not found on the system\n"); - printf("Please make sure that the sys filesystem is properly mounted\n"); - return EXIT_FAILURE; + if (strstr(dir, "/sys/")) { + if (stat("/sys/", &st) != 0) { + printf("Error - the folder '/sys/' was not found on the system\n"); + printf("Please make sure that the sys filesystem is properly mounted\n"); + return; + } + } + + if (!file_exists(module_ver_path)) { + printf("Error - batman-adv module has not been loaded\n"); + return; + } + + if (!file_exists(dir)) { + printf("Error - mesh has not been enabled yet\n"); + printf("Activate your mesh by adding interfaces to batman-adv\n"); + return; }

- if (stat(dir, &st) == 0) - return EXIT_SUCCESS; + for (ptr = fs_compile_out_param; *ptr; ptr++) { + if (strcmp(*ptr, fname) != 0) + continue; + + break; + }

- printf("Error - the folder '%s' was not found within the sys filesystem\n", dir); - printf("Please make sure that the batman-adv kernel module is loaded and\n"); - printf("that you have activated your mesh by adding interfaces to batman-adv\n"); - return EXIT_FAILURE; + printf("Error - can't open file '%s': %s\n", full_path, strerror(errno)); + if (*ptr) { + printf("The option you called seems not to be compiled into your batman-adv kernel module.\n"); + printf("Consult the README if you wish to learn more about compiling options into batman-adv.\n"); + } }

int read_file(char *dir, char *fname, int read_opt, @@ -140,7 +162,6 @@ int read_file(char *dir, char *fname, int read_opt, struct bat_host *bat_host; int res = EXIT_FAILURE; float last_seen; - const char **ptr; char full_path[500], *buff_ptr, *space_ptr, extra_char; size_t len = 0; FILE *fp = NULL; @@ -148,11 +169,6 @@ int read_file(char *dir, char *fname, int read_opt, if (read_opt & USE_BAT_HOSTS) bat_hosts_init(read_opt);

- if (strstr(dir, "/sys/")) { - if (check_sys_dir(dir) != EXIT_SUCCESS) - goto out; - } - strncpy(full_path, dir, strlen(dir)); full_path[strlen(dir)] = '\0'; strncat(full_path, fname, sizeof(full_path) - strlen(full_path)); @@ -161,20 +177,8 @@ open: fp = fopen(full_path, "r");

if (!fp) { - if (!(read_opt & SILENCE_ERRORS)) { - for (ptr = sysfs_compile_out_param; *ptr; ptr++) { - if (strcmp(*ptr, fname) != 0) - continue; - - break; - } - - printf("Error - can't open file '%s': %s\n", full_path, strerror(errno)); - if (*ptr) { - printf("The option you called seems not to be compiled into your batman-adv kernel module.\n"); - printf("Consult the README if you wish to learn more about compiling options into batman-adv.\n"); - } - } + if (!(read_opt & SILENCE_ERRORS)) + file_open_problem_dbg(dir, fname, full_path);

goto out; } @@ -285,11 +289,6 @@ int write_file(char *dir, char *fname, char *arg1, char *arg2) char full_path[500]; ssize_t write_len;

- if (strstr(dir, "/sys/")) { - if (check_sys_dir(dir) != EXIT_SUCCESS) - goto out; - } - strncpy(full_path, dir, strlen(dir)); full_path[strlen(dir)] = '\0'; strncat(full_path, fname, sizeof(full_path) - strlen(full_path)); @@ -297,7 +296,7 @@ int write_file(char *dir, char *fname, char *arg1, char *arg2) fd = open(full_path, O_WRONLY);

if (fd < 0) { - printf("Error - can't open file '%s': %s\n", full_path, strerror(errno)); + file_open_problem_dbg(dir, fname, full_path); goto out; }

diff --git a/sys.c b/sys.c index 5b728a8..9787875 100644 --- a/sys.c +++ b/sys.c @@ -109,6 +109,11 @@ static int print_interfaces(char *mesh_iface) char *path_buff; int res;

+ if (!file_exists(module_ver_path)) { + printf("Error - batman-adv module has not been loaded\n"); + goto err; + } + path_buff = malloc(PATH_BUFF_LEN); if (!path_buff) { printf("Error - could not allocate path buffer: out of memory ?\n"); @@ -191,6 +196,12 @@ int interface(char *mesh_iface, int argc, char **argv) goto err; }

+ if (argc == 2) { + printf("Error - missing interface name(s) after '%s'\n", argv[1]); + interface_usage(); + goto err; + } + path_buff = malloc(PATH_BUFF_LEN); if (!path_buff) { printf("Error - could not allocate path buffer: out of memory ?\n");