From c965f4b14194ade82c9f30807fa948d6545e55d6 Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Wed, 27 Jun 2007 00:20:38 +0000 Subject: devfsd: style cleanup; size reduction (Tito ) traceroute: suppress warning --- miscutils/devfsd.c | 179 ++++++++++++++--------------------------------------- 1 file changed, 46 insertions(+), 133 deletions(-) (limited to 'miscutils/devfsd.c') diff --git a/miscutils/devfsd.c b/miscutils/devfsd.c index 0aec94232..dfb616abe 100644 --- a/miscutils/devfsd.c +++ b/miscutils/devfsd.c @@ -322,13 +322,7 @@ static void msg_logger_and_die(int pri, const char* fmt, ...) #define devfsd_error_msg(fmt, args...) bb_error_msg(fmt, ## args) #define devfsd_perror_msg_and_die(fmt, args...) bb_perror_msg_and_die(fmt, ## args) #define devfsd_error_msg_and_die(fmt, args...) bb_error_msg_and_die(fmt, ## args) -#if defined(CONFIG_DEBUG) -#define debug_msg_logger(x, fmt, args...) msg_logger(x, fmt, ## args) #else -#define debug_msg_logger(x, fmt, args...) -#endif -#else -#define debug_msg_logger(x, fmt, args...) #define msg_logger(p, fmt, args...) #define msg_logger_and_die(p, fmt, args...) exit(1) #define devfsd_perror_msg_and_die(fmt, args...) exit(1) @@ -448,8 +442,7 @@ int devfsd_main(int argc, char **argv) mount_point = argv[1]; - if (chdir(mount_point) != 0) - devfsd_perror_msg_and_die(mount_point); + xchdir(mount_point); fd = xopen(".devfsd", O_RDONLY); @@ -509,7 +502,7 @@ int devfsd_main(int argc, char **argv) free_config(); read_config_file((char*)CONFIG_FILE, FALSE, &event_mask); if (do_scan) - dir_operation(SERVICE,mount_point,0,NULL); + dir_operation(SERVICE, mount_point, 0, NULL); } } /* End Function main */ @@ -530,8 +523,6 @@ static void read_config_file(char *path, int optional, unsigned long *event_mask char buf[STRING_LENGTH]; char *line = NULL; - debug_msg_logger(LOG_INFO, "%s: %s", __FUNCTION__, path); - if (stat(path, &statbuf) == 0) { /* Don't read 0 length files: ignored */ /*if (statbuf.st_size == 0) @@ -588,9 +579,8 @@ static void process_config_line(const char *line, unsigned long *event_mask) "RMOLDCOMPAT", "RMNEWCOMPAT", 0 }; - debug_msg_logger(LOG_INFO, __FUNCTION__); - - for (count = 0; count < MAX_ARGS; ++count) p[count][0] = '\0'; + for (count = 0; count < MAX_ARGS; ++count) + p[count][0] = '\0'; num_args = sscanf(line, "%s %s %s %s %s %s %s %s %s %s", when, name, what, p[0], p[1], p[2], p[3], p[4], p[5], p[6]); @@ -616,14 +606,13 @@ static void process_config_line(const char *line, unsigned long *event_mask) } /* "RESTORE" */ if (i == 3) { - dir_operation(RESTORE,name, strlen(name),NULL); + dir_operation(RESTORE, name, strlen(name),NULL); return; } if (num_args < 3) goto process_config_line_err; - new = xmalloc(sizeof *new); - memset(new, 0, sizeof *new); + new = xzalloc(sizeof *new); for (count = 0; event_types[count].config_name != NULL; ++count) { if (strcasecmp(when, event_types[count].config_name) != 0) @@ -632,7 +621,7 @@ static void process_config_line(const char *line, unsigned long *event_mask) break; } if (event_types[count].config_name == NULL) { - msg="WHEN in"; + msg = "WHEN in"; goto process_config_line_err; } @@ -643,7 +632,7 @@ static void process_config_line(const char *line, unsigned long *event_mask) new->action.what = AC_PERMISSIONS; /* Get user and group */ if ((ptr = strchr(p[0], '.')) == NULL) { - msg="UID.GID"; + msg = "UID.GID"; goto process_config_line_err; /*"missing '.' in UID.GID"*/ } @@ -695,7 +684,7 @@ static void process_config_line(const char *line, unsigned long *event_mask) new->action.what = i - 2; break; default: - msg ="WHAT in"; + msg = "WHAT in"; goto process_config_line_err; /*esac*/ } /* switch (i) */ @@ -725,8 +714,6 @@ static int do_servicing(int fd, unsigned long event_mask) struct devfsd_notify_struct info; unsigned long tmp_event_mask; - debug_msg_logger(LOG_INFO, __FUNCTION__); - /* Tell devfs what events we care about */ tmp_event_mask = event_mask; do_ioctl_and_die(fd, DEVFSDIOC_SET_EVENT_MASK, tmp_event_mask); @@ -761,9 +748,8 @@ static void service_name(const struct devfsd_notify_struct *info) regmatch_t mbuf[MAX_SUBEXPR]; struct config_entry_struct *entry; - debug_msg_logger(LOG_INFO, __FUNCTION__); if (ENABLE_DEBUG && info->overrun_count > 0) - debug_msg_logger(LOG_ERR, "lost %u events", info->overrun_count); + msg_logger(LOG_ERR, "lost %u events", info->overrun_count); /* Discard lookups on "/dev/log" and "/dev/initctl" */ if (info->type == DEVFSD_NOTIFY_LOOKUP @@ -784,8 +770,6 @@ static void service_name(const struct devfsd_notify_struct *info) for (n = 0;(n < MAX_SUBEXPR) && (mbuf[n].rm_so != -1); ++n) /* VOID */; - debug_msg_logger(LOG_INFO, "%s: action.what %d", __FUNCTION__, entry->action.what); - switch (entry->action.what) { case AC_PERMISSIONS: action_permissions(info, entry); @@ -825,13 +809,11 @@ static void action_permissions(const struct devfsd_notify_struct *info, { struct stat statbuf; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (stat(info->devname, &statbuf) != 0 || chmod(info->devname,(statbuf.st_mode & S_IFMT) |(entry->u.permissions.mode & ~S_IFMT)) != 0 || - chown(info->devname, entry->u.permissions.uid, entry->u.permissions.gid) != 0) { - msg_logger(LOG_ERR, "Can't chmod or chown: %s: %m",info->devname); - } + chown(info->devname, entry->u.permissions.uid, entry->u.permissions.gid) != 0 + ) + msg_logger(LOG_ERR, "Can't chmod or chown: %s: %m", info->devname); } /* End Function action_permissions */ static void action_modload(const struct devfsd_notify_struct *info, @@ -843,18 +825,16 @@ static void action_modload(const struct devfsd_notify_struct *info, */ { char *argv[6]; - char device[STRING_LENGTH]; argv[0] =(char*)MODPROBE; argv[1] =(char*)MODPROBE_SWITCH_1; /* "-k" */ argv[2] =(char*)MODPROBE_SWITCH_2; /* "-C" */ argv[3] =(char*)CONFIG_MODULES_DEVFS; - argv[4] = device; + argv[4] = concat_path_file("/dev", info->devname); /* device */ argv[5] = NULL; - snprintf(device, sizeof(device), "/dev/%s", info->devname); - debug_msg_logger(LOG_INFO, "%s: %s %s %s %s %s",__FUNCTION__, argv[0],argv[1],argv[2],argv[3],argv[4]); fork_and_execute(DIE, argv[0], argv); + free(argv[4]); } /* End Function action_modload */ static void action_execute(const struct devfsd_notify_struct *info, @@ -874,7 +854,6 @@ static void action_execute(const struct devfsd_notify_struct *info, char *argv[MAX_ARGS + 1]; char largv[MAX_ARGS + 1][STRING_LENGTH]; - debug_msg_logger(LOG_INFO ,__FUNCTION__); gv_info.info = info; gv_info.devname = info->devname; snprintf(gv_info.devpath, sizeof(gv_info.devpath), "%s/%s", mount_point, info->devname); @@ -908,8 +887,6 @@ static void action_copy(const struct devfsd_notify_struct *info, char source[STRING_LENGTH], destination[STRING_LENGTH]; int ret = 0; - debug_msg_logger(LOG_INFO, __FUNCTION__); - dest_stat.st_mode = 0; if ((info->type == DEVFSD_NOTIFY_CHANGE) && S_ISLNK(info->mode)) @@ -935,8 +912,8 @@ static void action_copy(const struct devfsd_notify_struct *info, else if ((info->type == DEVFSD_NOTIFY_CHANGE) &&(dest_stat.st_mode & S_ISVTX)) new_mode |= S_ISVTX; ret = copy_inode(destination, &dest_stat, new_mode, source, &source_stat); - if (ENABLE_DEBUG && ret &&(errno != EEXIST)) - debug_msg_logger(LOG_ERR, "copy_inode: %s to %s: %m", source, destination); + if (ENABLE_DEBUG && ret && (errno != EEXIST)) + msg_logger(LOG_ERR, "copy_inode: %s to %s: %m", source, destination); } /* End Function action_copy */ static void action_compat(const struct devfsd_notify_struct *info, unsigned int action) @@ -978,16 +955,14 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int case AC_MKNEWCOMPAT: case AC_RMNEWCOMPAT: ptr = strrchr(info->devname, '/') + 1; - i=scan_dev_name(info->devname, info->namelen, ptr); - - debug_msg_logger(LOG_INFO, "%s: scan_dev_name = %d", __FUNCTION__, i); + i = scan_dev_name(info->devname, info->namelen, ptr); /* nothing found */ - if (i==0 || i > 9) + if (i == 0 || i > 9) return; - sscanf(info->devname +((i<6)?5:4), "host%d/bus%d/target%d/lun%d/", &host, &bus, &target, &lun); - snprintf(dest_buf, sizeof(dest_buf), "../%s", info->devname +((i>5)?4:0)); + sscanf(info->devname + ((i < 6) ? 5 : 4), "host%d/bus%d/target%d/lun%d/", &host, &bus, &target, &lun); + snprintf(dest_buf, sizeof(dest_buf), "../%s", info->devname + (( i > 5) ? 4 : 0)); dest_name = dest_buf; compat_name = compat_buf; @@ -1010,7 +985,7 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int mode = ptr[2] - 107; /* 1 or 2 */ if (ptr[2] == 'a') mode = 3; - sprintf(compat_buf, fmt [i], host, bus, target, lun, mode, rewind_); + sprintf(compat_buf, fmt[i], host, bus, target, lun, mode, rewind_); } /* 9 == ide/host/mt */ @@ -1022,8 +997,6 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int if (compat_name == NULL) return; - debug_msg_logger(LOG_INFO, "%s: %s", __FUNCTION__, compat_name); - /* Now decide what to do with it */ switch (action) { case AC_MKOLDCOMPAT: @@ -1034,7 +1007,7 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int case AC_RMNEWCOMPAT: ret = unlink(compat_name); if (ENABLE_DEBUG && ret) - debug_msg_logger(LOG_ERR, "unlink: %s: %m", compat_name); + msg_logger(LOG_ERR, "unlink: %s: %m", compat_name); break; /*esac*/ } /* switch (action) */ @@ -1042,15 +1015,13 @@ static void action_compat(const struct devfsd_notify_struct *info, unsigned int static void restore(char *spath, struct stat source_stat, int rootlen) { - char dpath[STRING_LENGTH]; + char *dpath; struct stat dest_stat; - debug_msg_logger(LOG_INFO, __FUNCTION__); - dest_stat.st_mode = 0; - snprintf(dpath, sizeof dpath, "%s%s", mount_point, spath + rootlen); + dpath = concat_path_file(mount_point, spath + rootlen); lstat(dpath, &dest_stat); - + free(dpath); if (S_ISLNK(source_stat.st_mode) ||(source_stat.st_mode & S_ISVTX)) copy_inode(dpath, &dest_stat,(source_stat.st_mode & ~S_ISVTX) , spath, &source_stat); @@ -1077,8 +1048,6 @@ static int copy_inode(const char *destpath, const struct stat *dest_stat, struct sockaddr_un un_addr; char symlink_val[STRING_LENGTH]; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if ((source_stat->st_mode & S_IFMT) ==(dest_stat->st_mode & S_IFMT)) { /* Same type */ if (S_ISLNK(source_stat->st_mode)) { @@ -1150,8 +1119,6 @@ static void free_config(void) struct config_entry_struct *c_entry; void *next; - debug_msg_logger(LOG_INFO, __FUNCTION__); - for (c_entry = first_config; c_entry != NULL; c_entry = next) { unsigned int count; @@ -1184,11 +1151,6 @@ static int get_uid_gid(int flag, const char *string) if (ENABLE_DEVFSD_VERBOSE) msg = "user"; - debug_msg_logger(LOG_INFO, __FUNCTION__); - - if (ENABLE_DEBUG && flag != UID && flag != GID) - msg_logger_and_die(LOG_ERR,"%s: flag != UID && flag != GID", __FUNCTION__); - if (isdigit(string[0]) ||((string[0] == '-') && isdigit(string[1]))) return atoi(string); @@ -1214,8 +1176,6 @@ static mode_t get_mode(const char *string) mode_t mode; int i; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (isdigit(string[0])) return strtoul(string, NULL, 8); if (strlen(string) != 9) @@ -1226,7 +1186,7 @@ static mode_t get_mode(const char *string) while (i > 0) { if (string[0] == 'r' || string[0] == 'w' || string[0] == 'x') mode += i; - i = i/2; + i = i / 2; string++; } return mode; @@ -1234,8 +1194,6 @@ static mode_t get_mode(const char *string) static void signal_handler(int sig) { - debug_msg_logger(LOG_INFO, __FUNCTION__); - caught_signal = TRUE; if (sig == SIGHUP) caught_sighup = TRUE; @@ -1252,8 +1210,6 @@ static const char *get_variable(const char *variable, void *info) gv_info->devpath, gv_info->devname, 0 }; int i; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (gethostname(hostname, STRING_LENGTH - 1) != 0) msg_logger_and_die(LOG_ERR, "gethostname: %m"); @@ -1266,7 +1222,6 @@ static const char *get_variable(const char *variable, void *info) if (i > 6 || i < 0 || (i > 1 && gv_info == NULL)) return NULL; if (i >= 0 && i <= 3) { - debug_msg_logger(LOG_INFO, "%s: i=%d %s", __FUNCTION__, i, field_names[i + 7]); return field_names[i + 7]; } @@ -1276,9 +1231,6 @@ static const char *get_variable(const char *variable, void *info) sprintf(sbuf, "%u", gv_info->info->gid); else if (i == 6) sprintf(sbuf, "%o", gv_info->info->mode); - - debug_msg_logger(LOG_INFO, "%s: %s", __FUNCTION__, sbuf); - return sbuf; } /* End Function get_variable */ @@ -1286,8 +1238,6 @@ static void service(struct stat statbuf, char *path) { struct devfsd_notify_struct info; - debug_msg_logger(LOG_INFO, __FUNCTION__); - memset(&info, 0, sizeof info); info.type = DEVFSD_NOTIFY_REGISTERED; info.mode = statbuf.st_mode; @@ -1314,37 +1264,30 @@ static void dir_operation(int type, const char * dir_name, int var, unsigned lon struct stat statbuf; DIR *dp; struct dirent *de; - char path[STRING_LENGTH]; - - debug_msg_logger(LOG_INFO, __FUNCTION__); + char *path; - if ((dp = opendir(dir_name))==NULL) { - debug_msg_logger(LOG_ERR, "opendir: %s: %m", dir_name); + if ((dp = warn_opendir(dir_name)) == NULL) return; - } while ((de = readdir(dp)) != NULL) { if (de->d_name && DOT_OR_DOTDOT(de->d_name)) continue; - snprintf(path, sizeof(path), "%s/%s", dir_name, de->d_name); - debug_msg_logger(LOG_ERR, "%s: %s", __FUNCTION__, path); - - if (lstat(path, &statbuf) != 0) { - debug_msg_logger(LOG_ERR, "%s: %s: %m", __FUNCTION__, path); - continue; - } - switch (type) { - case SERVICE: - service(statbuf, path); - break; - case RESTORE: - restore(path, statbuf, var); - break; - case READ_CONFIG: - read_config_file(path, var, event_mask); - break; + path = concat_path_file(dir_name, de->d_name); + if (lstat(path, &statbuf) == 0) { + switch (type) { + case SERVICE: + service(statbuf, path); + break; + case RESTORE: + restore(path, statbuf, var); + break; + case READ_CONFIG: + read_config_file(path, var, event_mask); + break; + } } + free(path); } closedir(dp); } /* End Function do_scan_and_service */ @@ -1356,16 +1299,12 @@ static int mksymlink(const char *oldpath, const char *newpath) [RETURNS] 0 on success, else -1. */ { - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (!make_dir_tree(newpath)) return -1; if (symlink(oldpath, newpath) != 0) { - if (errno != EEXIST) { - debug_msg_logger(LOG_ERR, "%s: %s to %s: %m", __FUNCTION__, oldpath, newpath); + if (errno != EEXIST) return -1; - } } return 0; } /* End Function mksymlink */ @@ -1377,12 +1316,8 @@ static int make_dir_tree(const char *path) [RETURNS] TRUE on success, else FALSE. */ { - debug_msg_logger(LOG_INFO, __FUNCTION__); - - if (bb_make_directory(dirname((char *)path), -1, FILEUTILS_RECUR) == -1) { - debug_msg_logger(LOG_ERR, "%s: %s: %m",__FUNCTION__, path); + if (bb_make_directory(dirname((char *)path), -1, FILEUTILS_RECUR) == -1) return FALSE; - } return TRUE; } /* End Function make_dir_tree */ @@ -1409,8 +1344,6 @@ static int expand_expression(char *output, unsigned int outsize, { char temp[STRING_LENGTH]; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (!st_expr_expand(temp, STRING_LENGTH, input, get_variable_func, info)) return FALSE; expand_regexp(output, outsize, temp, devname, ex, numexp); @@ -1438,8 +1371,6 @@ static void expand_regexp(char *output, size_t outsize, const char *input, const char last_exp = '0' - 1 + numex; int c = -1; - debug_msg_logger(LOG_INFO, __FUNCTION__); - /* Guarantee NULL termination by writing an explicit '\0' character into the very last byte */ if (outsize) @@ -1555,8 +1486,6 @@ const char *get_old_name(const char *devname, unsigned int namelen, NULL }; - debug_msg_logger(LOG_INFO, __FUNCTION__); - for (trans = translate_table; trans->match != NULL; ++trans) { len = strlen(trans->match); @@ -1576,15 +1505,13 @@ const char *get_old_name(const char *devname, unsigned int namelen, else return NULL; - debug_msg_logger(LOG_INFO, "%s: scan_dev_name = %d", __FUNCTION__, i); - /* 1 == scsi/generic, 3 == scsi/cd, 10 == sbp/ */ if (i == 1 || i == 3 || i == 10) sprintf(buffer, fmt[i], minor); /* 2 ==scsi/disc, 4 == scsi/part */ if (i == 2 || i == 4) - compat_name = write_old_sd_name(buffer, major, minor,((i == 2)?"":(ptr + 4))); + compat_name = write_old_sd_name(buffer, major, minor,((i == 2) ? "" : (ptr + 4))); /* 5 == scsi/mt */ if (i == 5) { @@ -1617,10 +1544,6 @@ const char *get_old_name(const char *devname, unsigned int namelen, indexx = atoi(devname + 5); sprintf(buffer, fmt[i], (devname[4] == 'm') ? 'p' : 't', pty1[indexx >> 4], pty2[indexx & 0x0f]); } - - if (ENABLE_DEBUG && compat_name != NULL) - msg_logger(LOG_INFO, "%s: compat_name %s", __FUNCTION__, compat_name); - return compat_name; } /* End Function get_old_name */ @@ -1635,8 +1558,6 @@ static char get_old_ide_name(unsigned int major, unsigned int minor) char c = 'a'; /* 97 */ int i = IDE0_MAJOR; - debug_msg_logger(LOG_INFO, __FUNCTION__); - /* I hope it works like the previous code as it saves a few bytes. Tito ;P */ do { if (i == IDE0_MAJOR || i == IDE1_MAJOR || i == IDE2_MAJOR @@ -1671,8 +1592,6 @@ static char *write_old_sd_name(char *buffer, { unsigned int disc_index; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (major == 8) { sprintf(buffer, "sd%c%s", 'a' + (minor >> 4), part); return buffer; @@ -1716,8 +1635,6 @@ int st_expr_expand(char *output, unsigned int length, const char *input, struct passwd *pwent; char buffer[BUFFER_SIZE], tmp[STRING_LENGTH]; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (length > BUFFER_SIZE) length = BUFFER_SIZE; for (; TRUE; ++input) { @@ -1809,8 +1726,6 @@ static const char *expand_variable(char *buffer, unsigned int length, const char *env, *ptr; char tmp[STRING_LENGTH]; - debug_msg_logger(LOG_INFO, __FUNCTION__); - ch = input[0]; if (ch == '$') { /* Special case for "$$": PID */ @@ -1943,8 +1858,6 @@ static const char *get_variable_v2(const char *variable, { const char *value; - debug_msg_logger(LOG_INFO, __FUNCTION__); - if (func != NULL) { value = (*func)(variable, info); if (value != NULL) -- cgit v1.2.3