From e175ff252f9abb7267000571207c9d612728e1b9 Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Tue, 26 Sep 2006 17:41:00 +0000 Subject: [PATCH] several fixes from openWRT project --- editors/awk.c | 31 +++++++++++++++++++++++++++++- include/usage.h | 1 + loginutils/passwd.c | 2 +- networking/udhcp/dhcpc.c | 14 ++++++++++++-- networking/udhcp/dhcpc.h | 1 + networking/udhcp/options.c | 3 +++ networking/udhcp/options.h | 2 +- shell/ash.c | 39 ++++++++++++++++++++++++++++++++++++++ 8 files changed, 88 insertions(+), 5 deletions(-) diff --git a/editors/awk.c b/editors/awk.c index c934fe0df..bebc78092 100644 --- a/editors/awk.c +++ b/editors/awk.c @@ -249,7 +249,8 @@ enum { /* builtins */ enum { B_a2=0, B_ix, B_ma, B_sp, B_ss, B_ti, B_lo, B_up, - B_ge, B_gs, B_su + B_ge, B_gs, B_su, + B_an, B_co, B_ls, B_or, B_rs, B_xo, }; /* tokens and their corresponding info values */ @@ -289,6 +290,8 @@ static char * const tokenlist = "\5while" NTC "\4else" NTC + "\3and" "\5compl" "\6lshift" "\2or" + "\6rshift" "\3xor" "\5close" "\6system" "\6fflush" "\5atan2" /* BUILTIN */ "\3cos" "\3exp" "\3int" "\3log" "\4rand" "\3sin" "\4sqrt" "\5srand" @@ -342,6 +345,8 @@ static const uint32_t tokeninfo[] = { ST_WHILE, 0, + OC_B|B_an|P(0x83), OC_B|B_co|P(0x41), OC_B|B_ls|P(0x83), OC_B|B_or|P(0x83), + OC_B|B_rs|P(0x83), OC_B|B_xo|P(0x83), OC_FBLTIN|Sx|F_cl, OC_FBLTIN|Sx|F_sy, OC_FBLTIN|Sx|F_ff, OC_B|B_a2|P(0x83), OC_FBLTIN|Nx|F_co, OC_FBLTIN|Nx|F_ex, OC_FBLTIN|Nx|F_in, OC_FBLTIN|Nx|F_lg, OC_FBLTIN|F_rn, OC_FBLTIN|Nx|F_si, OC_FBLTIN|Nx|F_sq, OC_FBLTIN|Nx|F_sr, @@ -1923,6 +1928,30 @@ static var *exec_builtin(node *op, var *res) s[n] = '\0'; setvar_p(res, s); break; + + case B_an: + setvar_i(res, (long)getvar_i(av[0]) & (long)getvar_i(av[1])); + break; + + case B_co: + setvar_i(res, ~(long)getvar_i(av[0])); + break; + + case B_ls: + setvar_i(res, (long)getvar_i(av[0]) << (long)getvar_i(av[1])); + break; + + case B_or: + setvar_i(res, (long)getvar_i(av[0]) | (long)getvar_i(av[1])); + break; + + case B_rs: + setvar_i(res, (long)((unsigned long)getvar_i(av[0]) >> (unsigned long)getvar_i(av[1]))); + break; + + case B_xo: + setvar_i(res, (long)getvar_i(av[0]) ^ (long)getvar_i(av[1])); + break; case B_lo: to_xxx = tolower; diff --git a/include/usage.h b/include/usage.h index 6ef7f1ecf..da176d156 100644 --- a/include/usage.h +++ b/include/usage.h @@ -3211,6 +3211,7 @@ USE_FEATURE_START_STOP_DAEMON_FANCY( \ "\t-n,\t--now\tExit with failure if lease cannot be immediately negotiated\n" \ "\t-p,\t--pidfile=file\tStore process ID of daemon in file\n" \ "\t-q,\t--quit\tQuit after obtaining lease\n" \ + "\t-R,\t--release\tRelease IP on quit\n" \ "\t-r,\t--request=IP\tIP address to request (default: none)\n" \ "\t-s,\t--script=file\tRun file at dhcp events (default: /usr/share/udhcpc/default.script)\n" \ "\t-t,\t--retries=NUM\tSend up to NUM request packets\n"\ diff --git a/loginutils/passwd.c b/loginutils/passwd.c index f48f15f89..211a49ea3 100644 --- a/loginutils/passwd.c +++ b/loginutils/passwd.c @@ -318,7 +318,7 @@ static int new_password(const struct passwd *pw, int amroot, int algo) } else { orig[0] = '\0'; } - cp = bb_askpass(0, "Enter the new password (minimum of 5, maximum of 8 characters).\n" + cp = bb_askpass(0, "Enter the new password (minimum of 5 characters).\n" "Please use a combination of upper and lower case letters and numbers.\n" "Enter new password: "); if (!cp ) { diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c index ff4d5018c..499183f18 100644 --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -53,6 +53,7 @@ struct client_config_t client_config = { .abort_if_no_lease = 0, .foreground = 0, .quit_after_lease = 0, + .release_on_quit = 0, .background_if_no_lease = 0, .interface = "eth0", .pidfile = NULL, @@ -169,6 +170,7 @@ int udhcpc_main(int argc, char *argv[]) {"now", no_argument, 0, 'n'}, {"pidfile", required_argument, 0, 'p'}, {"quit", no_argument, 0, 'q'}, + {"release", no_argument, 0, 'R'}, {"request", required_argument, 0, 'r'}, {"script", required_argument, 0, 's'}, {"timeout", required_argument, 0, 'T'}, @@ -180,7 +182,7 @@ int udhcpc_main(int argc, char *argv[]) /* get options */ while (1) { int option_index = 0; - c = getopt_long(argc, argv, "c:CV:fbH:h:F:i:np:qr:s:T:t:v", arg_options, &option_index); + c = getopt_long(argc, argv, "c:CV:fbH:h:F:i:np:qRr:s:T:t:v", arg_options, &option_index); if (c == -1) break; switch (c) { @@ -250,6 +252,9 @@ int udhcpc_main(int argc, char *argv[]) case 'q': client_config.quit_after_lease = 1; break; + case 'R': + client_config.release_on_quit = 1; + break; case 'r': requested_ip = inet_addr(optarg); break; @@ -495,8 +500,11 @@ int udhcpc_main(int argc, char *argv[]) state = BOUND; change_mode(LISTEN_NONE); - if (client_config.quit_after_lease) + if (client_config.quit_after_lease) { + if (client_config.release_on_quit) + perform_release(); return 0; + } if (!client_config.foreground) client_background(); @@ -526,6 +534,8 @@ int udhcpc_main(int argc, char *argv[]) break; case SIGTERM: bb_info_msg("Received SIGTERM"); + if (client_config.release_on_quit) + perform_release(); return 0; } } else if (retval == -1 && errno == EINTR) { diff --git a/networking/udhcp/dhcpc.h b/networking/udhcp/dhcpc.h index 3dff11ab0..6cf59a950 100644 --- a/networking/udhcp/dhcpc.h +++ b/networking/udhcp/dhcpc.h @@ -19,6 +19,7 @@ struct client_config_t { char foreground; /* Do not fork */ char quit_after_lease; /* Quit after obtaining lease */ + char release_on_quit; /* perform release on quit */ char abort_if_no_lease; /* Abort if no lease */ char background_if_no_lease; /* Fork to background if no lease */ char *interface; /* The name of the interface to use */ diff --git a/networking/udhcp/options.c b/networking/udhcp/options.c index 652647229..ded0f7b9b 100644 --- a/networking/udhcp/options.c +++ b/networking/udhcp/options.c @@ -42,8 +42,11 @@ struct dhcp_option dhcp_options[] = { {"dhcptype", OPTION_U8, 0x35}, {"serverid", OPTION_IP, 0x36}, {"message", OPTION_STRING, 0x38}, + {"vendorclass", OPTION_STRING, 0x3C}, + {"clientid", OPTION_STRING, 0x3D}, {"tftp", OPTION_STRING, 0x42}, {"bootfile", OPTION_STRING, 0x43}, + {"userclass", OPTION_STRING, 0x4D}, {"", 0x00, 0x00} }; diff --git a/networking/udhcp/options.h b/networking/udhcp/options.h index b0a649fef..3c1f5b921 100644 --- a/networking/udhcp/options.h +++ b/networking/udhcp/options.h @@ -23,7 +23,7 @@ enum { #define OPTION_LIST 0x20 /* There can be a list of 1 or more of these */ struct dhcp_option { - char name[10]; + char name[12]; char flags; uint8_t code; }; diff --git a/shell/ash.c b/shell/ash.c index 754c1d72b..7d4da434e 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -1384,6 +1384,13 @@ static const struct builtincmd builtincmd[] = { #define NUMBUILTINS (sizeof (builtincmd) / sizeof (struct builtincmd) ) +static const char *safe_applets[] = { + "[", "test", "echo", "cat", + "ln", "cp", "touch", "mkdir", "rm", + "cut", "hexdump", "awk", "sort", + "find", "xargs", "ls", "dd", + "chown", "chmod" +}; struct cmdentry { @@ -2034,6 +2041,19 @@ static int dotrap(void); static void setinteractive(int); static void exitshell(void) ATTRIBUTE_NORETURN; + +static int is_safe_applet(char *name) +{ + int n = sizeof(safe_applets) / sizeof(char *); + int i; + for (i = 0; i < n; i++) + if (strcmp(safe_applets[i], name) == 0) + return 1; + + return 0; +} + + /* * This routine is called when an error or an interrupt occurs in an * interactive shell and control is returned to the main command loop. @@ -3681,6 +3701,7 @@ shellexec(char **argv, const char *path, int idx) clearredir(1); envp = environment(); if (strchr(argv[0], '/') != NULL + || is_safe_applet(argv[0]) #ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL || find_applet_by_name(argv[0]) #endif @@ -3723,6 +3744,18 @@ static void tryexec(char *cmd, char **argv, char **envp) { int repeated = 0; + struct BB_applet *a; + int argc = 0; + char **c; + + if(strchr(cmd, '/') == NULL && is_safe_applet(cmd) && (a = find_applet_by_name(cmd)) != NULL) { + c = argv; + while (*c != NULL) { + c++; argc++; + } + bb_applet_name = cmd; + exit(a->main(argc, argv)); + } #ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL if(find_applet_by_name(cmd) != NULL) { /* re-exec ourselves with the new arguments */ @@ -3905,6 +3938,12 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path) } #endif + if (is_safe_applet(name)) { + entry->cmdtype = CMDNORMAL; + entry->u.index = -1; + return; + } + updatetbl = (path == pathval()); if (!updatetbl) { act |= DO_ALTPATH; -- 2.25.1