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https://git.tartarus.org/simon/putty.git
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f39c51f9a7
This gets rid of all those annoying 'win', 'ux' and 'gtk' prefixes which made filenames annoying to type and to tab-complete. Also, as with my other recent renaming sprees, I've taken the opportunity to expand and clarify some of the names so that they're not such cryptic abbreviations.
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <assert.h>
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#include <signal.h>
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#include <ctype.h>
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#include <unistd.h>
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#include "putty.h"
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#include "ssh.h"
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#include "misc.h"
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#include "pageant.h"
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Socket *platform_make_agent_socket(
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Plug *plug, const char *dirprefix, char **error, char **name)
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{
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char *username, *socketdir, *socketname, *errw;
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const char *err;
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Socket *sock;
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*name = NULL;
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username = get_username();
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socketdir = dupprintf("%s.%s", dirprefix, username);
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sfree(username);
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assert(*socketdir == '/');
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if ((errw = make_dir_and_check_ours(socketdir)) != NULL) {
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*error = dupprintf("%s: %s\n", socketdir, errw);
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sfree(errw);
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sfree(socketdir);
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return NULL;
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}
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socketname = dupprintf("%s/pageant.%d", socketdir, (int)getpid());
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sock = new_unix_listener(unix_sock_addr(socketname), plug);
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if ((err = sk_socket_error(sock)) != NULL) {
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*error = dupprintf("%s: %s\n", socketname, err);
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sk_close(sock);
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sfree(socketname);
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rmdir(socketdir);
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sfree(socketdir);
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return NULL;
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}
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/*
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* Spawn a subprocess which will try to reliably delete our socket
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* and its containing directory when we terminate, in case we die
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* unexpectedly.
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*/
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{
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int cleanup_pipe[2];
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pid_t pid;
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/* Don't worry if pipe or fork fails; it's not _that_ critical. */
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if (!pipe(cleanup_pipe)) {
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if ((pid = fork()) == 0) {
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int buf[1024];
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/*
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* Our parent process holds the writing end of
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* this pipe, and writes nothing to it. Hence,
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* we expect read() to return EOF as soon as
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* that process terminates.
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*/
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close(0);
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close(1);
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close(2);
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setpgid(0, 0);
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close(cleanup_pipe[1]);
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while (read(cleanup_pipe[0], buf, sizeof(buf)) > 0);
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unlink(socketname);
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rmdir(socketdir);
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_exit(0);
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} else if (pid < 0) {
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close(cleanup_pipe[0]);
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close(cleanup_pipe[1]);
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} else {
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close(cleanup_pipe[0]);
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cloexec(cleanup_pipe[1]);
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}
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}
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}
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*name = socketname;
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*error = NULL;
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sfree(socketdir);
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return sock;
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}
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