From: Guus Sliepen Date: Sun, 7 Oct 2012 15:53:23 +0000 (+0200) Subject: Fix warnings from cppcheck. X-Git-Tag: import-tinc-1.1~272 X-Git-Url: https://git.meshlink.io/?a=commitdiff_plain;h=d93a37928b75b17ac5e1eae5c2d62fd0760a6608;p=meshlink Fix warnings from cppcheck. --- diff --git a/src/conf.c b/src/conf.c index c1302d28..b30feedd 100644 --- a/src/conf.c +++ b/src/conf.c @@ -411,8 +411,7 @@ bool append_config_file(const char *name, const char *key, const char *value) { fclose(fp); } - free(fname); - return fp; + return fp != NULL; } diff --git a/src/multicast_device.c b/src/multicast_device.c index e5e9a3fb..51d5c294 100644 --- a/src/multicast_device.c +++ b/src/multicast_device.c @@ -38,7 +38,7 @@ static struct addrinfo *ai = NULL; static mac_t ignore_src = {{0}}; static bool setup_device(void) { - char *host; + char *host = NULL; char *port; char *space; int ttl = 1; @@ -49,14 +49,14 @@ static bool setup_device(void) { if(!get_config_string(lookup_config(config_tree, "Device"), &device)) { logger(DEBUG_ALWAYS, LOG_ERR, "Device variable required for %s", device_info); - return false; + goto error; } host = xstrdup(device); space = strchr(host, ' '); if(!space) { logger(DEBUG_ALWAYS, LOG_ERR, "Port number required for %s", device_info); - return false; + goto error; } *space++ = 0; @@ -70,12 +70,12 @@ static bool setup_device(void) { ai = str2addrinfo(host, port, SOCK_DGRAM); if(!ai) - return false; + goto error; device_fd = socket(ai->ai_family, SOCK_DGRAM, IPPROTO_UDP); if(device_fd < 0) { logger(DEBUG_ALWAYS, LOG_ERR, "Creating socket failed: %s", sockstrerror(sockerrno)); - return false; + goto error; } #ifdef FD_CLOEXEC @@ -86,9 +86,8 @@ static bool setup_device(void) { setsockopt(device_fd, SOL_SOCKET, SO_REUSEADDR, (void *)&one, sizeof one); if(bind(device_fd, ai->ai_addr, ai->ai_addrlen)) { - closesocket(device_fd); logger(DEBUG_ALWAYS, LOG_ERR, "Can't bind to %s %s: %s", host, port, sockstrerror(sockerrno)); - return false; + goto error; } switch(ai->ai_family) { @@ -101,8 +100,7 @@ static bool setup_device(void) { mreq.imr_interface.s_addr = htonl(INADDR_ANY); if(setsockopt(device_fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (void *)&mreq, sizeof mreq)) { logger(DEBUG_ALWAYS, LOG_ERR, "Cannot join multicast group %s %s: %s", host, port, sockstrerror(sockerrno)); - closesocket(device_fd); - return false; + goto error; } #ifdef IP_MULTICAST_LOOP setsockopt(device_fd, IPPROTO_IP, IP_MULTICAST_LOOP, (const void *)&one, sizeof one); @@ -122,8 +120,7 @@ static bool setup_device(void) { mreq.ipv6mr_interface = in6.sin6_scope_id; if(setsockopt(device_fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, (void *)&mreq, sizeof mreq)) { logger(DEBUG_ALWAYS, LOG_ERR, "Cannot join multicast group %s %s: %s", host, port, sockstrerror(sockerrno)); - closesocket(device_fd); - return false; + goto error; } #ifdef IPV6_MULTICAST_LOOP setsockopt(device_fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, (const void *)&one, sizeof one); @@ -136,13 +133,23 @@ static bool setup_device(void) { default: logger(DEBUG_ALWAYS, LOG_ERR, "Multicast for address family %hx unsupported", ai->ai_family); - closesocket(device_fd); - return false; + goto error; } + freeaddrinfo(ai); + logger(DEBUG_ALWAYS, LOG_INFO, "%s is a %s", device, device_info); return true; + +error: + if(device_fd >= 0) + closesocket(device_fd); + if(ai) + freeaddrinfo(ai); + free(host); + + return false; } static void close_device(void) { diff --git a/src/net.h b/src/net.h index 7bcb85b7..d7b868a5 100644 --- a/src/net.h +++ b/src/net.h @@ -148,6 +148,9 @@ typedef enum proxytype_t { } proxytype_t; extern proxytype_t proxytype; +extern char *scriptinterpreter; +extern char *scriptextension; + /* Yes, very strange placement indeed, but otherwise the typedefs get all tangled up */ #include "connection.h" #include "node.h" diff --git a/src/net_setup.c b/src/net_setup.c index f07bdda4..fd595a93 100644 --- a/src/net_setup.c +++ b/src/net_setup.c @@ -52,20 +52,23 @@ char *proxyuser; char *proxypass; proxytype_t proxytype; +char *scriptinterpreter; +char *scriptextension; + bool node_read_ecdsa_public_key(node_t *n) { if(ecdsa_active(&n->ecdsa)) return true; splay_tree_t *config_tree; FILE *fp; - char *fname; + char *pubname = NULL, *hcfname = NULL; char *p; bool result = false; - xasprintf(&fname, "%s" SLASH "hosts" SLASH "%s", confbase, n->name); + xasprintf(&hcfname, "%s" SLASH "hosts" SLASH "%s", confbase, n->name); init_configuration(&config_tree); - if(!read_config_file(config_tree, fname)) + if(!read_config_file(config_tree, hcfname)) goto exit; /* First, check for simple ECDSAPublicKey statement */ @@ -78,15 +81,13 @@ bool node_read_ecdsa_public_key(node_t *n) { /* Else, check for ECDSAPublicKeyFile statement and read it */ - free(fname); + if(!get_config_string(lookup_config(config_tree, "ECDSAPublicKeyFile"), &pubname)) + xasprintf(&pubname, "%s" SLASH "hosts" SLASH "%s", confbase, n->name); - if(!get_config_string(lookup_config(config_tree, "ECDSAPublicKeyFile"), &fname)) - xasprintf(&fname, "%s" SLASH "hosts" SLASH "%s", confbase, n->name); - - fp = fopen(fname, "r"); + fp = fopen(pubname, "r"); if(!fp) { - logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA public key file `%s': %s", fname, strerror(errno)); + logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA public key file `%s': %s", pubname, strerror(errno)); goto exit; } @@ -95,7 +96,8 @@ bool node_read_ecdsa_public_key(node_t *n) { exit: exit_configuration(&config_tree); - free(fname); + free(hcfname); + free(pubname); return result; } @@ -386,11 +388,26 @@ char *get_name(void) { bool setup_myself_reloadable(void) { char *proxy = NULL; - char *mode = NULL; + char *rmode = NULL; + char *fmode = NULL; + char *bmode = NULL; char *afname = NULL; char *space; bool choice; + free(scriptinterpreter); + scriptinterpreter = NULL; + get_config_string(lookup_config(config_tree, "ScriptsInterpreter"), &scriptinterpreter); + + + free(scriptextension); + if(!get_config_string(lookup_config(config_tree, "ScriptsExtension"), &scriptextension)) +#ifdef HAVE_MINGW + scriptextension = xstrdup(".bat"); +#else + scriptextension = xstrdup(""); +#endif + get_config_string(lookup_config(config_tree, "Proxy"), &proxy); if(proxy) { if((space = strchr(proxy, ' '))) @@ -465,32 +482,32 @@ bool setup_myself_reloadable(void) { get_config_bool(lookup_config(config_tree, "DirectOnly"), &directonly); get_config_bool(lookup_config(config_tree, "LocalDiscovery"), &localdiscovery); - if(get_config_string(lookup_config(config_tree, "Mode"), &mode)) { - if(!strcasecmp(mode, "router")) + if(get_config_string(lookup_config(config_tree, "Mode"), &rmode)) { + if(!strcasecmp(rmode, "router")) routing_mode = RMODE_ROUTER; - else if(!strcasecmp(mode, "switch")) + else if(!strcasecmp(rmode, "switch")) routing_mode = RMODE_SWITCH; - else if(!strcasecmp(mode, "hub")) + else if(!strcasecmp(rmode, "hub")) routing_mode = RMODE_HUB; else { logger(DEBUG_ALWAYS, LOG_ERR, "Invalid routing mode!"); return false; } - free(mode); + free(rmode); } - if(get_config_string(lookup_config(config_tree, "Forwarding"), &mode)) { - if(!strcasecmp(mode, "off")) + if(get_config_string(lookup_config(config_tree, "Forwarding"), &fmode)) { + if(!strcasecmp(fmode, "off")) forwarding_mode = FMODE_OFF; - else if(!strcasecmp(mode, "internal")) + else if(!strcasecmp(fmode, "internal")) forwarding_mode = FMODE_INTERNAL; - else if(!strcasecmp(mode, "kernel")) + else if(!strcasecmp(fmode, "kernel")) forwarding_mode = FMODE_KERNEL; else { logger(DEBUG_ALWAYS, LOG_ERR, "Invalid forwarding mode!"); return false; } - free(mode); + free(fmode); } choice = true; @@ -505,18 +522,18 @@ bool setup_myself_reloadable(void) { get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance); get_config_bool(lookup_config(config_tree, "DecrementTTL"), &decrement_ttl); - if(get_config_string(lookup_config(config_tree, "Broadcast"), &mode)) { - if(!strcasecmp(mode, "no")) + if(get_config_string(lookup_config(config_tree, "Broadcast"), &bmode)) { + if(!strcasecmp(bmode, "no")) broadcast_mode = BMODE_NONE; - else if(!strcasecmp(mode, "yes") || !strcasecmp(mode, "mst")) + else if(!strcasecmp(bmode, "yes") || !strcasecmp(bmode, "mst")) broadcast_mode = BMODE_MST; - else if(!strcasecmp(mode, "direct")) + else if(!strcasecmp(bmode, "direct")) broadcast_mode = BMODE_DIRECT; else { logger(DEBUG_ALWAYS, LOG_ERR, "Invalid broadcast mode!"); return false; } - free(mode); + free(bmode); } #if !defined(SOL_IP) || !defined(IP_TOS) diff --git a/src/process.c b/src/process.c index 362b678c..a3cae338 100644 --- a/src/process.c +++ b/src/process.c @@ -226,58 +226,40 @@ bool detach(void) { bool execute_script(const char *name, char **envp) { #ifdef HAVE_SYSTEM - int status, len; char *scriptname; - int i; - char *interpreter = NULL; + char *command; -#ifndef HAVE_MINGW - len = xasprintf(&scriptname, "\"%s" SLASH "%s\"", confbase, name); -#else - len = xasprintf(&scriptname, "\"%s" SLASH "%s.bat\"", confbase, name); -#endif - if(len < 0) - return false; + xasprintf(&scriptname, "%s" SLASH "%s%s", confbase, name, scriptextension); - scriptname[len - 1] = '\0'; - -#ifndef HAVE_TUNEMU /* First check if there is a script */ - if(access(scriptname + 1, F_OK)) { + if(access(scriptname, F_OK)) { free(scriptname); return true; } -#endif - - // Custom scripts interpreter - if(get_config_string(lookup_config(config_tree, "ScriptsInterpreter"), &interpreter)) { - // Force custom scripts interpreter allowing execution of scripts on android without execution flag (such as on /sdcard) - free(scriptname); - len = xasprintf(&scriptname, "%s \"%s/%s\"", interpreter, confbase, name); - free(interpreter); - if(len < 0) - return false; - } logger(DEBUG_STATUS, LOG_INFO, "Executing script %s", name); - #ifdef HAVE_PUTENV /* Set environment */ - for(i = 0; envp[i]; i++) + for(int i = 0; envp[i]; i++) putenv(envp[i]); #endif - scriptname[len - 1] = '\"'; - status = system(scriptname); + if(scriptinterpreter) + xasprintf(&command, "%s \"%s\"", scriptinterpreter, scriptname); + else + xasprintf(&command, "\"%s\"", scriptname); + + int status = system(command); + free(command); free(scriptname); /* Unset environment */ - for(i = 0; envp[i]; i++) { + for(int i = 0; envp[i]; i++) { char *e = strchr(envp[i], '='); if(e) { char p[e - envp[i] + 1]; diff --git a/src/tincctl.c b/src/tincctl.c index a771b0ea..4dc1ff24 100644 --- a/src/tincctl.c +++ b/src/tincctl.c @@ -355,7 +355,7 @@ static FILE *ask_and_open(const char *filename, const char *what, const char *mo static bool ecdsa_keygen(bool ask) { ecdsa_t key; FILE *f; - char *filename; + char *pubname, *privname; fprintf(stderr, "Generating ECDSA keypair:\n"); @@ -365,8 +365,9 @@ static bool ecdsa_keygen(bool ask) { } else fprintf(stderr, "Done.\n"); - xasprintf(&filename, "%s" SLASH "ecdsa_key.priv", confbase); - f = ask_and_open(filename, "private ECDSA key", "a", ask); + xasprintf(&privname, "%s" SLASH "ecdsa_key.priv", confbase); + f = ask_and_open(privname, "private ECDSA key", "a", ask); + free(privname); if(!f) return false; @@ -379,14 +380,14 @@ static bool ecdsa_keygen(bool ask) { ecdsa_write_pem_private_key(&key, f); fclose(f); - free(filename); if(name) - xasprintf(&filename, "%s" SLASH "hosts" SLASH "%s", confbase, name); + xasprintf(&pubname, "%s" SLASH "hosts" SLASH "%s", confbase, name); else - xasprintf(&filename, "%s" SLASH "ecdsa_key.pub", confbase); + xasprintf(&pubname, "%s" SLASH "ecdsa_key.pub", confbase); - f = ask_and_open(filename, "public ECDSA key", "a", ask); + f = ask_and_open(pubname, "public ECDSA key", "a", ask); + free(pubname); if(!f) return false; @@ -396,7 +397,6 @@ static bool ecdsa_keygen(bool ask) { free(pubkey); fclose(f); - free(filename); return true; } @@ -408,7 +408,7 @@ static bool ecdsa_keygen(bool ask) { static bool rsa_keygen(int bits, bool ask) { rsa_t key; FILE *f; - char *filename; + char *pubname, *privname; fprintf(stderr, "Generating %d bits keys:\n", bits); @@ -418,8 +418,9 @@ static bool rsa_keygen(int bits, bool ask) { } else fprintf(stderr, "Done.\n"); - xasprintf(&filename, "%s" SLASH "rsa_key.priv", confbase); - f = ask_and_open(filename, "private RSA key", "a", ask); + xasprintf(&privname, "%s" SLASH "rsa_key.priv", confbase); + f = ask_and_open(privname, "private RSA key", "a", ask); + free(privname); if(!f) return false; @@ -432,14 +433,14 @@ static bool rsa_keygen(int bits, bool ask) { rsa_write_pem_private_key(&key, f); fclose(f); - free(filename); if(name) - xasprintf(&filename, "%s" SLASH "hosts" SLASH "%s", confbase, name); + xasprintf(&pubname, "%s" SLASH "hosts" SLASH "%s", confbase, name); else - xasprintf(&filename, "%s" SLASH "rsa_key.pub", confbase); + xasprintf(&pubname, "%s" SLASH "rsa_key.pub", confbase); - f = ask_and_open(filename, "public RSA key", "a", ask); + f = ask_and_open(pubname, "public RSA key", "a", ask); + free(pubname); if(!f) return false; @@ -447,7 +448,6 @@ static bool rsa_keygen(int bits, bool ask) { rsa_write_pem_public_key(&key, f); fclose(f); - free(filename); return true; } @@ -833,12 +833,15 @@ static int cmd_start(int argc, char *argv[]) { pid_t pid = fork(); if(pid == -1) { fprintf(stderr, "Could not fork: %s\n", strerror(errno)); + free(nargv); return 1; } if(!pid) exit(execvp(c, nargv)); + free(nargv); + int status = -1; if(waitpid(pid, &status, 0) != pid || !WIFEXITED(status) || WEXITSTATUS(status)) { fprintf(stderr, "Error starting %s\n", c); @@ -1226,7 +1229,7 @@ static struct { {"ECDSAPrivateKeyFile", VAR_SERVER}, {"ExperimentalProtocol", VAR_SERVER}, {"Forwarding", VAR_SERVER}, - {"GraphDumpFile", VAR_SERVER}, + {"GraphDumpFile", VAR_SERVER | VAR_OBSOLETE}, {"Hostnames", VAR_SERVER}, {"IffOneQueue", VAR_SERVER}, {"Interface", VAR_SERVER}, @@ -1245,6 +1248,8 @@ static struct { {"ProcessPriority", VAR_SERVER}, {"Proxy", VAR_SERVER}, {"ReplayWindow", VAR_SERVER}, + {"ScriptsExtension", VAR_SERVER}, + {"ScriptsInterpreter", VAR_SERVER}, {"StrictSubnets", VAR_SERVER}, {"TunnelServer", VAR_SERVER}, {"UDPRcvBuf", VAR_SERVER}, @@ -2133,6 +2138,8 @@ static int cmd_shell(int argc, char *argv[]) { } } + free(nargv); + if(tty) printf("\n"); return result;