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main.c File Reference

Go to the source code of this file.

Functions
void	show_malloc_stats (void)
	If our C library can get malloc statistics, then show them to FINFO. More...
void	wait_process (pid_t pid, int *status)
void	report (int f)
pid_t	do_cmd (char *cmd, char *machine, char *user, char *path, int *f_in, int *f_out)
char *	get_local_name (struct file_list *flist, char *name)
void	do_server_sender (int f_in, int f_out, int argc, char *argv[])
int	do_recv (int f_in, int f_out, struct file_list *flist, char *local_name)
void	do_server_recv (int f_in, int f_out, int argc, char *argv[])
int	child_main (int argc, char *argv[])
void	start_server (int f_in, int f_out, int argc, char *argv[])
int	client_run (int f_in, int f_out, pid_t pid, int argc, char *argv[])
char *	find_colon (char *s)
int	copy_argv (char *argv[])
int	start_client (int argc, char *argv[])
	Start a client for either type of remote connection. More...
RETSIGTYPE	sigusr1_handler (int UNUSED(val))
RETSIGTYPE	sigusr2_handler (int UNUSED(val))
RETSIGTYPE	sigchld_handler (int UNUSED(val))
const char *	get_panic_action (void)
	This routine catches signals and tries to send them to gdb. More...
RETSIGTYPE	rsync_panic_handler (int UNUSED(whatsig))
	Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. More...
int	main (int argc, char *argv[])
Variables
time_t	starttime = 0
stats	stats
int	verbose

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Function Documentation

void show_malloc_stats (  void    )  [static]

If our C library can get malloc statistics, then show them to FINFO. Definition at line 138 of file main.c. References am_daemon, am_sender, FINFO, and rprintf(). Referenced by report(). { #ifdef HAVE_MALLINFO struct mallinfo mi; extern int am_server; extern int am_sender; extern int am_daemon; mi = mallinfo(); rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", getpid(), am_server ? "server " : "", am_daemon ? "daemon " : "", am_sender ? "sender" : "receiver"); rprintf(FINFO, " arena: %10d (bytes from sbrk)\n", mi.arena); rprintf(FINFO, " ordblks: %10d (chunks not in use)\n", mi.ordblks); rprintf(FINFO, " smblks: %10d\n", mi.smblks); rprintf(FINFO, " hblks: %10d (chunks from mmap)\n", mi.hblks); rprintf(FINFO, " hblkhd: %10d (bytes from mmap)\n", mi.hblkhd); rprintf(FINFO, " usmblks: %10d\n", mi.usmblks); rprintf(FINFO, " fsmblks: %10d\n", mi.fsmblks); rprintf(FINFO, " uordblks: %10d (bytes used)\n", mi.uordblks); rprintf(FINFO, " fordblks: %10d (bytes free)\n", mi.fordblks); rprintf(FINFO, " keepcost: %10d (bytes in releasable chunk)\n", mi.keepcost); #endif /* HAVE_MALLINFO */ }

void wait_process (  pid_t    pid, int *    status )

Definition at line 34 of file main.c. References io_flush(), msleep(), and waitpid(). Referenced by client_run(), and do_recv(). { while (waitpid(pid, status, WNOHANG) == 0) { msleep(20); io_flush(); } /* TODO: If the child exited on a signal, then log an * appropriate error message. Perhaps we should also accept a * message describing the purpose of the child. Also indicate * this to the caller so that thhey know something went * wrong. */ *status = WEXITSTATUS(*status); }

void report (  int    f )  [static]

Definition at line 49 of file main.c. References am_daemon, am_sender, do_stats, FINFO, stats::flist_size, stats::literal_data, log_exit(), stats::matched_data, stats::num_files, stats::num_transferred_files, read_longint(), rprintf(), show_flist_stats(), show_malloc_stats(), starttime, stats::total_read, stats::total_size, stats::total_transferred_size, stats::total_written, verbose, and write_longint(). Referenced by client_run(), do_recv(), and do_server_sender(). { time_t t = time(NULL); extern int am_server; extern int am_sender; extern int am_daemon; extern int do_stats; extern int remote_version; int send_stats; if (do_stats) { /* These come out from every process */ show_malloc_stats(); show_flist_stats(); } if (am_daemon) { log_exit(0, __FILE__, __LINE__); if (f == -1 || !am_sender) return; } send_stats = verbose || (remote_version >= 20); if (am_server) { if (am_sender && send_stats) { int64 w; /* store total_written in a temporary because write_longint changes it */ w = stats.total_written; write_longint(f,stats.total_read); write_longint(f,w); write_longint(f,stats.total_size); } return; } /* this is the client */ if (!am_sender && send_stats) { int64 r; stats.total_written = read_longint(f); /* store total_read in a temporary, read_longint changes it */ r = read_longint(f); stats.total_size = read_longint(f); stats.total_read = r; } if (do_stats) { if (!am_sender && !send_stats) { /* missing the bytes written by the generator */ rprintf(FINFO, "\nCannot show stats as receiver because remote protocol version is less than 20\n"); rprintf(FINFO, "Use --stats -v to show stats\n"); return; } rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); rprintf(FINFO,"Number of files transferred: %d\n", stats.num_transferred_files); rprintf(FINFO,"Total file size: %.0f bytes\n", (double)stats.total_size); rprintf(FINFO,"Total transferred file size: %.0f bytes\n", (double)stats.total_transferred_size); rprintf(FINFO,"Literal data: %.0f bytes\n", (double)stats.literal_data); rprintf(FINFO,"Matched data: %.0f bytes\n", (double)stats.matched_data); rprintf(FINFO,"File list size: %d\n", stats.flist_size); rprintf(FINFO,"Total bytes written: %.0f\n", (double)stats.total_written); rprintf(FINFO,"Total bytes read: %.0f\n\n", (double)stats.total_read); } if (verbose || do_stats) { rprintf(FINFO,"wrote %.0f bytes read %.0f bytes %.2f bytes/sec\n", (double)stats.total_written, (double)stats.total_read, (stats.total_written+stats.total_read)/(0.5 + (t-starttime))); rprintf(FINFO,"total size is %.0f speedup is %.2f\n", (double)stats.total_size, (1.0*stats.total_size)/(stats.total_written+stats.total_read)); } fflush(stdout); fflush(stderr); }

pid_t do_cmd (  char *    cmd, char *    machine, char *    user, char *    path, int *    f_in, int *    f_out )  [static]

Definition at line 168 of file main.c. References blocking_io, child_main(), create_flist_from_batch(), FINFO, getenv(), local_child(), local_server, out_of_memory(), piped_child(), rprintf(), rsync_path, server_options(), strdup(), and verbose. Referenced by start_client(). { char *args[100]; int i,argc=0; pid_t ret; char *tok,*dir=NULL; extern int local_server; extern char *rsync_path; extern int blocking_io; extern int read_batch; if (!read_batch && !local_server) { if (!cmd) cmd = getenv(RSYNC_RSH_ENV); if (!cmd) cmd = RSYNC_RSH; cmd = strdup(cmd); if (!cmd) goto oom; for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) { args[argc++] = tok; } #if HAVE_REMSH /* remsh (on HPUX) takes the arguments the other way around */ args[argc++] = machine; if (user) { args[argc++] = "-l"; args[argc++] = user; } #else if (user) { args[argc++] = "-l"; args[argc++] = user; } args[argc++] = machine; #endif args[argc++] = rsync_path; if ((blocking_io == -1) && (strcmp(cmd, RSYNC_RSH) == 0)) blocking_io = 1; server_options(args,&argc); } args[argc++] = "."; if (path && *path) args[argc++] = path; args[argc] = NULL; if (verbose > 3) { rprintf(FINFO,"cmd="); for (i=0;i<argc;i++) rprintf(FINFO,"%s ",args[i]); rprintf(FINFO,"\n"); } if (local_server) { if (read_batch) create_flist_from_batch(); /* sets batch_flist */ ret = local_child(argc, args, f_in, f_out, child_main); } else { ret = piped_child(args,f_in,f_out); } if (dir) free(dir); return ret; oom: out_of_memory("do_cmd"); return 0; /* not reached */ }

char* get_local_name (  struct file_list *    flist, char *    name )  [static]

Definition at line 250 of file main.c. References file_list::count, do_mkdir(), do_stat(), FERROR, FINFO, orig_umask, push_dir(), rprintf(), and verbose. Referenced by client_run(), and do_server_recv(). { STRUCT_STAT st; extern int orig_umask; if (verbose > 2) rprintf(FINFO,"get_local_name count=%d %s\n", flist->count, NS(name)); if (!name) return NULL; if (do_stat(name,&st) == 0) { if (S_ISDIR(st.st_mode)) { if (!push_dir(name, 0)) { rprintf(FERROR,"push_dir %s : %s (1)\n", name,strerror(errno)); exit_cleanup(RERR_FILESELECT); } return NULL; } if (flist->count > 1) { rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); exit_cleanup(RERR_FILESELECT); } return name; } if (flist->count <= 1) return name; if (do_mkdir(name,0777 & ~orig_umask) != 0) { rprintf(FERROR, RSYNC_NAME ": mkdir %s: %s\n", name, strerror(errno)); exit_cleanup(RERR_FILEIO); } else { if (verbose > 0) rprintf(FINFO,"created directory %s\n",name); } if (!push_dir(name, 0)) { rprintf(FERROR, RSYNC_NAME ": push_dir %s: %s\n", name, strerror(errno)); exit_cleanup(RERR_FILESELECT); } return NULL; }

void do_server_sender (  int    f_in, int    f_out, int    argc, char *    argv[] )  [static]

Definition at line 302 of file main.c. References file_list::count, FERROR, FINFO, io_flush(), push_dir(), read_int(), report(), rprintf(), send_file_list(), send_files(), and verbose. Referenced by start_server(). { int i; struct file_list *flist; char *dir = argv[0]; extern int relative_paths; extern int recurse; extern int remote_version; if (verbose > 2) rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); if (!relative_paths && !push_dir(dir, 0)) { rprintf(FERROR,"push_dir %s: %s (3)\n",dir,strerror(errno)); exit_cleanup(RERR_FILESELECT); } argc--; argv++; if (strcmp(dir,".")) { int l = strlen(dir); if (strcmp(dir,"/") == 0) l = 0; for (i=0;i<argc;i++) argv[i] += l+1; } if (argc == 0 && recurse) { argc=1; argv--; argv[0] = "."; } flist = send_file_list(f_out,argc,argv); if (!flist || flist->count == 0) { exit_cleanup(0); } send_files(flist,f_out,f_in); io_flush(); report(f_out); if (remote_version >= 24) { /* final goodbye message */ read_int(f_in); } io_flush(); exit_cleanup(0); }

int do_recv (  int    f_in, int    f_out, struct file_list *    flist, char *    local_name )  [static]

Definition at line 352 of file main.c. References file_list::count, delete_after, delete_files(), do_fork(), fd_pair(), FERROR, generate_files(), init_hard_links(), io_flush(), io_multiplexing_close(), io_set_error_fd(), io_start_buffering(), msleep(), read_int(), recv_files(), report(), rprintf(), set_error_fd(), wait_process(), and write_int(). Referenced by client_run(), and do_server_recv(). { int pid; int status=0; int recv_pipe[2]; int error_pipe[2]; extern int preserve_hard_links; extern int delete_after; extern int recurse; extern int delete_mode; extern int remote_version; if (preserve_hard_links) init_hard_links(flist); if (!delete_after) { /* I moved this here from recv_files() to prevent a race condition */ if (recurse && delete_mode && !local_name && flist->count>0) { delete_files(flist); } } if (fd_pair(recv_pipe) < 0) { rprintf(FERROR,"pipe failed in do_recv\n"); exit_cleanup(RERR_SOCKETIO); } if (fd_pair(error_pipe) < 0) { rprintf(FERROR,"error pipe failed in do_recv\n"); exit_cleanup(RERR_SOCKETIO); } io_flush(); if ((pid=do_fork()) == 0) { close(recv_pipe[0]); close(error_pipe[0]); if (f_in != f_out) close(f_out); /* we can't let two processes write to the socket at one time */ io_multiplexing_close(); /* set place to send errors */ set_error_fd(error_pipe[1]); recv_files(f_in,flist,local_name,recv_pipe[1]); io_flush(); report(f_in); write_int(recv_pipe[1],1); close(recv_pipe[1]); io_flush(); /* finally we go to sleep until our parent kills us with a USR2 signal. We sleep for a short time as on some OSes a signal won't interrupt a sleep! */ while (msleep(20)) ; } close(recv_pipe[1]); close(error_pipe[1]); if (f_in != f_out) close(f_in); io_start_buffering(f_out); io_set_error_fd(error_pipe[0]); generate_files(f_out,flist,local_name,recv_pipe[0]); read_int(recv_pipe[0]); close(recv_pipe[0]); if (remote_version >= 24) { /* send a final goodbye message */ write_int(f_out, -1); } io_flush(); kill(pid, SIGUSR2); wait_process(pid, &status); return status; }

void do_server_recv (  int    f_in, int    f_out, int    argc, char *    argv[] )  [static]

Definition at line 435 of file main.c. References am_daemon, am_sender, delete_excluded, do_recv(), FERROR, FINFO, get_local_name(), push_dir(), recv_exclude_list(), recv_file_list(), rprintf(), and verbose. Referenced by start_server(). { int status; struct file_list *flist; char *local_name=NULL; char *dir = NULL; extern int delete_mode; extern int delete_excluded; extern int am_daemon; extern int module_id; extern int am_sender; extern int read_batch; extern struct file_list *batch_flist; if (verbose > 2) rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid()); if (am_daemon && lp_read_only(module_id) && !am_sender) { rprintf(FERROR,"ERROR: module is read only\n"); exit_cleanup(RERR_SYNTAX); return; } if (argc > 0) { dir = argv[0]; argc--; argv++; if (!am_daemon && !push_dir(dir, 0)) { rprintf(FERROR,"push_dir %s : %s (4)\n", dir,strerror(errno)); exit_cleanup(RERR_FILESELECT); } } if (delete_mode && !delete_excluded) recv_exclude_list(f_in); if (read_batch) flist = batch_flist; else flist = recv_file_list(f_in); if (!flist) { rprintf(FERROR,"server_recv: recv_file_list error\n"); exit_cleanup(RERR_FILESELECT); } if (argc > 0) { if (strcmp(dir,".")) { argv[0] += strlen(dir); if (argv[0][0] == '/') argv[0]++; } local_name = get_local_name(flist,argv[0]); } status = do_recv(f_in,f_out,flist,local_name); exit_cleanup(status); }

int child_main (  int    argc, char *    argv[] )

Definition at line 495 of file main.c. References start_server(). Referenced by do_cmd(), and local_child(). { start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); return 0; }

void start_server (  int    f_in, int    f_out, int    argc, char *    argv[] )

Definition at line 502 of file main.c. References add_cvs_excludes(), am_sender, do_server_recv(), do_server_sender(), io_start_multiplex_out(), recv_exclude_list(), set_nonblocking(), and setup_protocol(). Referenced by child_main(), main(), and rsync_module(). { extern int cvs_exclude; extern int am_sender; extern int remote_version; extern int read_batch; setup_protocol(f_out, f_in); set_nonblocking(f_in); set_nonblocking(f_out); if (remote_version >= 23) io_start_multiplex_out(f_out); if (am_sender) { if (!read_batch) { recv_exclude_list(f_in); if (cvs_exclude) add_cvs_excludes(); } do_server_sender(f_in, f_out, argc, argv); } else { do_server_recv(f_in, f_out, argc, argv); } exit_cleanup(0); }

int client_run (  int    f_in, int    f_out, pid_t    pid, int    argc, char *    argv[] )

Definition at line 535 of file main.c. References add_cvs_excludes(), am_sender, cleanup_child_pid, file_list::count, delete_excluded, do_recv(), FINFO, get_local_name(), io_flush(), io_start_multiplex_in(), read_int(), recv_file_list(), report(), rprintf(), send_exclude_list(), send_file_list(), send_files(), set_nonblocking(), setup_protocol(), verbose, and wait_process(). Referenced by start_client(), and start_socket_client(). { struct file_list *flist = NULL; int status = 0, status2 = 0; char *local_name = NULL; extern int am_sender; extern int remote_version; extern pid_t cleanup_child_pid; extern int write_batch; extern int read_batch; extern struct file_list *batch_flist; cleanup_child_pid = pid; if (read_batch) flist = batch_flist; set_nonblocking(f_in); set_nonblocking(f_out); setup_protocol(f_out,f_in); if (remote_version >= 23) io_start_multiplex_in(f_in); if (am_sender) { extern int cvs_exclude; extern int delete_mode; extern int delete_excluded; if (cvs_exclude) add_cvs_excludes(); if (delete_mode && !delete_excluded) send_exclude_list(f_out); if (!read_batch) /* dw -- don't write to pipe */ flist = send_file_list(f_out,argc,argv); if (verbose > 3) rprintf(FINFO,"file list sent\n"); send_files(flist,f_out,f_in); if (remote_version >= 24) { /* final goodbye message */ read_int(f_in); } if (pid != -1) { if (verbose > 3) rprintf(FINFO,"client_run waiting on %d\n", (int) pid); io_flush(); wait_process(pid, &status); } report(-1); exit_cleanup(status); } if (argc == 0) { extern int list_only; list_only = 1; } if (!write_batch) send_exclude_list(f_out); flist = recv_file_list(f_in); if (!flist || flist->count == 0) { rprintf(FINFO, "client: nothing to do: " "perhaps you need to specify some filenames or " "the --recursive option?\n"); exit_cleanup(0); } local_name = get_local_name(flist,argv[0]); status2 = do_recv(f_in,f_out,flist,local_name); if (pid != -1) { if (verbose > 3) rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); io_flush(); wait_process(pid, &status); } return MAX(status, status2); }

char* find_colon (  char *    s )  [static]

Definition at line 617 of file main.c. Referenced by start_client(). { char *p, *p2; p = strchr(s,':'); if (!p) return NULL; /* now check to see if there is a / in the string before the : - if there is then discard the colon on the assumption that the : is part of a filename */ p2 = strchr(s,'/'); if (p2 && p2 < p) return NULL; return p; }

int copy_argv (  char *    argv[] )  [static]

Definition at line 633 of file main.c. References FERROR, rprintf(), and strdup(). Referenced by start_client(). { int i; for (i = 0; argv[i]; i++) { if (!(argv[i] = strdup(argv[i]))) { rprintf (FERROR, "out of memory at %s(%d)\n", __FILE__, __LINE__); return RERR_MALLOC; } } return 0; }

int start_client (  int    argc, char *    argv[] )  [static]

Start a client for either type of remote connection. Work out whether the arguments request a remote shell or rsyncd connection, and call the appropriate connection function, then run_client. Calls either start_socket_client (for sockets) or do_cmd and client_run (for ssh). Definition at line 657 of file main.c. References am_sender, client_run(), copy_argv(), do_cmd(), FERROR, find_colon(), FINFO, host, local_server, rprintf(), shell_cmd, start_socket_client(), usage(), and verbose. Referenced by main(). { char *p; char *shell_machine = NULL; char *shell_path = NULL; char *shell_user = NULL; int ret; pid_t pid; int f_in,f_out; extern int local_server; extern int am_sender; extern char *shell_cmd; extern int rsync_port; extern int read_batch; int rc; /* Don't clobber argv[] so that ps(1) can still show the right command line. */ if ((rc = copy_argv (argv))) return rc; if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) { char *host, *path; host = argv[0] + strlen(URL_PREFIX); p = strchr(host,'/'); if (p) { *p = 0; path = p+1; } else { path=""; } p = strchr(host,':'); if (p) { rsync_port = atoi(p+1); *p = 0; } return start_socket_client(host, path, argc-1, argv+1); } if (!read_batch) { p = find_colon(argv[0]); if (p) { if (p[1] == ':') { /* double colon */ *p = 0; return start_socket_client(argv[0], p+2, argc-1, argv+1); } if (argc < 1) { usage(FERROR); exit_cleanup(RERR_SYNTAX); } am_sender = 0; *p = 0; shell_machine = argv[0]; shell_path = p+1; argc--; argv++; } else { am_sender = 1; p = find_colon(argv[argc-1]); if (!p) { local_server = 1; } else if (p[1] == ':') { *p = 0; return start_socket_client(argv[argc-1], p+2, argc-1, argv); } if (argc < 2) { usage(FERROR); exit_cleanup(RERR_SYNTAX); } if (local_server) { shell_machine = NULL; shell_path = argv[argc-1]; } else { *p = 0; shell_machine = argv[argc-1]; shell_path = p+1; } argc--; } } else { am_sender = 1; local_server = 1; shell_path = argv[argc-1]; } if (shell_machine) { p = strchr(shell_machine,'@'); if (p) { *p = 0; shell_user = shell_machine; shell_machine = p+1; } } if (verbose > 3) { rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", shell_cmd?shell_cmd:"", shell_machine?shell_machine:"", shell_user?shell_user:"", shell_path?shell_path:""); } if (!am_sender && argc > 1) { usage(FERROR); exit_cleanup(RERR_SYNTAX); } if (argc == 0 && !am_sender) { extern int list_only; list_only = 1; } pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,&f_in,&f_out); ret = client_run(f_in, f_out, pid, argc, argv); fflush(stdout); fflush(stderr); return ret; }

RETSIGTYPE sigusr1_handler (  int UNUSED(val)    )  [static]

Definition at line 787 of file main.c. Referenced by main(). { exit_cleanup(RERR_SIGNAL); }

RETSIGTYPE sigusr2_handler (  int UNUSED(val)    )  [static]

Definition at line 791 of file main.c. References log_got_error. Referenced by main(). { extern int log_got_error; if (log_got_error) _exit(RERR_PARTIAL); _exit(0); }

RETSIGTYPE sigchld_handler (  int UNUSED(val)    )  [static]

Definition at line 797 of file main.c. References waitpid(). Referenced by main(). { #ifdef WNOHANG while (waitpid(-1, NULL, WNOHANG) > 0) ; #endif }

const char* get_panic_action (  void    )

This routine catches signals and tries to send them to gdb. Because it's called from inside a signal handler it ought not to use too many library routines. Todo: Perhaps use "screen -X" instead/as well, to help people debugging without easy access to X. Perhaps use an environment variable, or just call a script? The /proc/ magic probably only works on Linux (and Solaris?) Can we be more portable? Definition at line 818 of file main.c. References getenv(). Referenced by print_rsync_version(), and rsync_panic_handler(). { const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); if (cmd_fmt) return cmd_fmt; else return "xterm -display :0 -T Panic -n Panic " "-e gdb /proc/%d/exe %d"; }

RETSIGTYPE rsync_panic_handler (  int UNUSED(whatsig)    )  [static]

Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. This signal handler is only installed if we were configured with --enable-maintainer-mode. Perhaps it should always be on and we should just look at the environment variable, but I'm a bit leery of a signal sending us into a busy loop. Definition at line 838 of file main.c. References get_panic_action(), and sprintf(). Referenced by main(). { char cmd_buf[300]; int ret; sprintf(cmd_buf, get_panic_action(), getpid(), getpid()); /* Unless we failed to execute gdb, we allow the process to * continue. I'm not sure if that's right. */ ret = system(cmd_buf); if (ret) _exit(ret); }

int main (  int    argc, char *    argv[] )

Definition at line 855 of file main.c. References am_daemon, daemon_main(), FERROR, option_error(), orig_umask, parse_arguments(), push_dir(), rprintf(), rsync_panic_handler(), set_nonblocking(), sig_int(), sigchld_handler(), sigusr1_handler(), sigusr2_handler(), start_client(), start_server(), starttime, usage(), verbose, and write_batch_argvs_file(). { extern int am_root; extern int orig_umask; extern int dry_run; extern int am_daemon; extern int am_server; int ret; extern int write_batch; int orig_argc; char **orig_argv; orig_argc = argc; orig_argv = argv; signal(SIGUSR1, sigusr1_handler); signal(SIGUSR2, sigusr2_handler); signal(SIGCHLD, sigchld_handler); #ifdef MAINTAINER_MODE signal(SIGSEGV, rsync_panic_handler); signal(SIGFPE, rsync_panic_handler); signal(SIGABRT, rsync_panic_handler); signal(SIGBUS, rsync_panic_handler); #endif /* def MAINTAINER_MODE */ starttime = time(NULL); am_root = (getuid() == 0); memset(&stats, 0, sizeof(stats)); if (argc < 2) { usage(FERROR); exit_cleanup(RERR_SYNTAX); } /* we set a 0 umask so that correct file permissions can be carried across */ orig_umask = (int)umask(0); if (!parse_arguments(&argc, (const char ***) &argv, 1)) { /* FIXME: We ought to call the same error-handling * code here, rather than relying on getopt. */ option_error(); exit_cleanup(RERR_SYNTAX); } signal(SIGINT,SIGNAL_CAST sig_int); signal(SIGHUP,SIGNAL_CAST sig_int); signal(SIGTERM,SIGNAL_CAST sig_int); /* Ignore SIGPIPE; we consistently check error codes and will * see the EPIPE. */ signal(SIGPIPE, SIG_IGN); /* Initialize push_dir here because on some old systems getcwd (implemented by forking "pwd" and reading its output) doesn't work when there are other child processes. Also, on all systems that implement getcwd that way "pwd" can't be found after chroot. */ push_dir(NULL,0); if (write_batch && !am_server) { write_batch_argvs_file(orig_argc, orig_argv); } if (am_daemon) { return daemon_main(); } if (argc < 1) { usage(FERROR); exit_cleanup(RERR_SYNTAX); } if (dry_run) verbose = MAX(verbose,1); #ifndef SUPPORT_LINKS if (!am_server && preserve_links) { rprintf(FERROR,"ERROR: symbolic links not supported\n"); exit_cleanup(RERR_UNSUPPORTED); } #endif if (am_server) { set_nonblocking(STDIN_FILENO); set_nonblocking(STDOUT_FILENO); start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); } ret = start_client(argc, argv); if (ret == -1) exit_cleanup(RERR_STARTCLIENT); else exit_cleanup(ret); exit(ret); /* NOTREACHED */ }

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Variable Documentation

time_t starttime = 0

Definition at line 24 of file main.c. Referenced by main(), and report().

struct stats stats

Definition at line 26 of file main.c.

int verbose

Definition at line 27 of file main.c. Referenced by client_run(), do_cmd(), do_server_recv(), do_server_sender(), get_local_name(), main(), report(), and start_client().

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