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-rw-r--r--connect.c266
1 files changed, 135 insertions, 131 deletions
diff --git a/connect.c b/connect.c
index 2f55ad2c25..b3585aba22 100644
--- a/connect.c
+++ b/connect.c
@@ -5,6 +5,7 @@
#include "refs.h"
#include "run-command.h"
#include "remote.h"
+#include "url.h"
static char *server_capabilities;
@@ -107,27 +108,6 @@ int server_supports(const char *feature)
strstr(server_capabilities, feature) != NULL;
}
-int get_ack(int fd, unsigned char *result_sha1)
-{
- static char line[1000];
- int len = packet_read_line(fd, line, sizeof(line));
-
- if (!len)
- die("git fetch-pack: expected ACK/NAK, got EOF");
- if (line[len-1] == '\n')
- line[--len] = 0;
- if (!strcmp(line, "NAK"))
- return 0;
- if (!prefixcmp(line, "ACK ")) {
- if (!get_sha1_hex(line+4, result_sha1)) {
- if (strstr(line+45, "continue"))
- return 2;
- return 1;
- }
- }
- die("git fetch_pack: expected ACK/NAK, got '%s'", line);
-}
-
int path_match(const char *path, int nr, char **match)
{
int i;
@@ -152,7 +132,7 @@ int path_match(const char *path, int nr, char **match)
enum protocol {
PROTO_LOCAL = 1,
PROTO_SSH,
- PROTO_GIT,
+ PROTO_GIT
};
static enum protocol get_protocol(const char *name)
@@ -173,22 +153,37 @@ static enum protocol get_protocol(const char *name)
#define STR_(s) # s
#define STR(s) STR_(s)
+static void get_host_and_port(char **host, const char **port)
+{
+ char *colon, *end;
+
+ if (*host[0] == '[') {
+ end = strchr(*host + 1, ']');
+ if (end) {
+ *end = 0;
+ end++;
+ (*host)++;
+ } else
+ end = *host;
+ } else
+ end = *host;
+ colon = strchr(end, ':');
+
+ if (colon) {
+ *colon = 0;
+ *port = colon + 1;
+ }
+}
+
#ifndef NO_IPV6
static const char *ai_name(const struct addrinfo *ai)
{
- static char addr[INET_ADDRSTRLEN];
- if ( AF_INET == ai->ai_family ) {
- struct sockaddr_in *in;
- in = (struct sockaddr_in *)ai->ai_addr;
- inet_ntop(ai->ai_family, &in->sin_addr, addr, sizeof(addr));
- } else if ( AF_INET6 == ai->ai_family ) {
- struct sockaddr_in6 *in;
- in = (struct sockaddr_in6 *)ai->ai_addr;
- inet_ntop(ai->ai_family, &in->sin6_addr, addr, sizeof(addr));
- } else {
+ static char addr[NI_MAXHOST];
+ if (getnameinfo(ai->ai_addr, ai->ai_addrlen, addr, sizeof(addr), NULL, 0,
+ NI_NUMERICHOST) != 0)
strcpy(addr, "(unknown)");
- }
+
return addr;
}
@@ -198,30 +193,14 @@ static const char *ai_name(const struct addrinfo *ai)
static int git_tcp_connect_sock(char *host, int flags)
{
int sockfd = -1, saved_errno = 0;
- char *colon, *end;
const char *port = STR(DEFAULT_GIT_PORT);
struct addrinfo hints, *ai0, *ai;
int gai;
int cnt = 0;
- if (host[0] == '[') {
- end = strchr(host + 1, ']');
- if (end) {
- *end = 0;
- end++;
- host++;
- } else
- end = host;
- } else
- end = host;
- colon = strchr(end, ':');
-
- if (colon) {
- *colon = 0;
- port = colon + 1;
- if (!*port)
- port = "<none>";
- }
+ get_host_and_port(&host, &port);
+ if (!*port)
+ port = "<none>";
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_STREAM;
@@ -237,7 +216,7 @@ static int git_tcp_connect_sock(char *host, int flags)
if (flags & CONNECT_VERBOSE)
fprintf(stderr, "done.\nConnecting to %s (port %s) ... ", host, port);
- for (ai0 = ai; ai; ai = ai->ai_next) {
+ for (ai0 = ai; ai; ai = ai->ai_next, cnt++) {
sockfd = socket(ai->ai_family,
ai->ai_socktype, ai->ai_protocol);
if (sockfd < 0) {
@@ -279,30 +258,15 @@ static int git_tcp_connect_sock(char *host, int flags)
static int git_tcp_connect_sock(char *host, int flags)
{
int sockfd = -1, saved_errno = 0;
- char *colon, *end;
- char *port = STR(DEFAULT_GIT_PORT), *ep;
+ const char *port = STR(DEFAULT_GIT_PORT);
+ char *ep;
struct hostent *he;
struct sockaddr_in sa;
char **ap;
unsigned int nport;
int cnt;
- if (host[0] == '[') {
- end = strchr(host + 1, ']');
- if (end) {
- *end = 0;
- end++;
- host++;
- } else
- end = host;
- } else
- end = host;
- colon = strchr(end, ':');
-
- if (colon) {
- *colon = 0;
- port = colon + 1;
- }
+ get_host_and_port(&host, &port);
if (flags & CONNECT_VERBOSE)
fprintf(stderr, "Looking up %s ... ", host);
@@ -315,7 +279,7 @@ static int git_tcp_connect_sock(char *host, int flags)
/* Not numeric */
struct servent *se = getservbyname(port,"tcp");
if ( !se )
- die("Unknown port %s\n", port);
+ die("Unknown port %s", port);
nport = se->s_port;
}
@@ -373,8 +337,6 @@ static void git_tcp_connect(int fd[2], char *host, int flags)
static char *git_proxy_command;
-static const char *rhost_name;
-static int rhost_len;
static int git_proxy_command_options(const char *var, const char *value,
void *cb)
@@ -383,6 +345,8 @@ static int git_proxy_command_options(const char *var, const char *value,
const char *for_pos;
int matchlen = -1;
int hostlen;
+ const char *rhost_name = cb;
+ int rhost_len = strlen(rhost_name);
if (git_proxy_command)
return 0;
@@ -426,55 +390,38 @@ static int git_proxy_command_options(const char *var, const char *value,
static int git_use_proxy(const char *host)
{
- rhost_name = host;
- rhost_len = strlen(host);
git_proxy_command = getenv("GIT_PROXY_COMMAND");
- git_config(git_proxy_command_options, NULL);
- rhost_name = NULL;
+ git_config(git_proxy_command_options, (void*)host);
return (git_proxy_command && *git_proxy_command);
}
-static void git_proxy_connect(int fd[2], char *host)
+static struct child_process *git_proxy_connect(int fd[2], char *host)
{
const char *port = STR(DEFAULT_GIT_PORT);
- char *colon, *end;
- const char *argv[4];
- struct child_process proxy;
-
- if (host[0] == '[') {
- end = strchr(host + 1, ']');
- if (end) {
- *end = 0;
- end++;
- host++;
- } else
- end = host;
- } else
- end = host;
- colon = strchr(end, ':');
+ const char **argv;
+ struct child_process *proxy;
- if (colon) {
- *colon = 0;
- port = colon + 1;
- }
+ get_host_and_port(&host, &port);
+ argv = xmalloc(sizeof(*argv) * 4);
argv[0] = git_proxy_command;
argv[1] = host;
argv[2] = port;
argv[3] = NULL;
- memset(&proxy, 0, sizeof(proxy));
- proxy.argv = argv;
- proxy.in = -1;
- proxy.out = -1;
- if (start_command(&proxy))
+ proxy = xcalloc(1, sizeof(*proxy));
+ proxy->argv = argv;
+ proxy->in = -1;
+ proxy->out = -1;
+ if (start_command(proxy))
die("cannot start proxy %s", argv[0]);
- fd[0] = proxy.out; /* read from proxy stdout */
- fd[1] = proxy.in; /* write to proxy stdin */
+ fd[0] = proxy->out; /* read from proxy stdout */
+ fd[1] = proxy->in; /* write to proxy stdin */
+ return proxy;
}
#define MAX_CMD_LEN 1024
-char *get_port(char *host)
+static char *get_port(char *host)
{
char *end;
char *p = strchr(host, ':');
@@ -506,11 +453,11 @@ static struct child_process no_fork;
struct child_process *git_connect(int fd[2], const char *url_orig,
const char *prog, int flags)
{
- char *url = xstrdup(url_orig);
- char *host, *path = url;
+ char *url;
+ char *host, *path;
char *end;
int c;
- struct child_process *conn;
+ struct child_process *conn = &no_fork;
enum protocol protocol = PROTO_LOCAL;
int free_path = 0;
char *port = NULL;
@@ -522,8 +469,13 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
*/
signal(SIGCHLD, SIG_DFL);
+ if (is_url(url_orig))
+ url = url_decode(url_orig);
+ else
+ url = xstrdup(url_orig);
+
host = strstr(url, "://");
- if(host) {
+ if (host) {
*host = '\0';
protocol = get_protocol(url);
host += 3;
@@ -533,12 +485,18 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
c = ':';
}
+ /*
+ * Don't do destructive transforms with git:// as that
+ * protocol code does '[]' unwrapping of its own.
+ */
if (host[0] == '[') {
end = strchr(host + 1, ']');
if (end) {
- *end = 0;
+ if (protocol != PROTO_GIT) {
+ *end = 0;
+ host++;
+ }
end++;
- host++;
} else
end = host;
} else
@@ -584,12 +542,15 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
*/
char *target_host = xstrdup(host);
if (git_use_proxy(host))
- git_proxy_connect(fd, host);
+ conn = git_proxy_connect(fd, host);
else
git_tcp_connect(fd, host, flags);
/*
* Separate original protocol components prog and path
- * from extended components with a NUL byte.
+ * from extended host header with a NUL byte.
+ *
+ * Note: Do not add any other headers here! Doing so
+ * will cause older git-daemon servers to crash.
*/
packet_write(fd[1],
"%s %s%chost=%s%c",
@@ -599,7 +560,7 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
free(url);
if (free_path)
free(path);
- return &no_fork;
+ return conn;
}
conn = xcalloc(1, sizeof(*conn));
@@ -612,32 +573,26 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
die("command line too long");
conn->in = conn->out = -1;
- conn->argv = arg = xcalloc(6, sizeof(*arg));
+ conn->argv = arg = xcalloc(7, sizeof(*arg));
if (protocol == PROTO_SSH) {
const char *ssh = getenv("GIT_SSH");
+ int putty = ssh && strcasestr(ssh, "plink");
if (!ssh) ssh = "ssh";
*arg++ = ssh;
+ if (putty && !strcasestr(ssh, "tortoiseplink"))
+ *arg++ = "-batch";
if (port) {
- *arg++ = "-p";
+ /* P is for PuTTY, p is for OpenSSH */
+ *arg++ = putty ? "-P" : "-p";
*arg++ = port;
}
*arg++ = host;
}
else {
- /* remove these from the environment */
- const char *env[] = {
- ALTERNATE_DB_ENVIRONMENT,
- DB_ENVIRONMENT,
- GIT_DIR_ENVIRONMENT,
- GIT_WORK_TREE_ENVIRONMENT,
- GRAFT_ENVIRONMENT,
- INDEX_ENVIRONMENT,
- NULL
- };
- conn->env = env;
- *arg++ = "sh";
- *arg++ = "-c";
+ /* remove repo-local variables from the environment */
+ conn->env = local_repo_env;
+ conn->use_shell = 1;
}
*arg++ = cmd.buf;
*arg = NULL;
@@ -654,10 +609,15 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
return conn;
}
+int git_connection_is_socket(struct child_process *conn)
+{
+ return conn == &no_fork;
+}
+
int finish_connect(struct child_process *conn)
{
int code;
- if (!conn || conn == &no_fork)
+ if (!conn || git_connection_is_socket(conn))
return 0;
code = finish_command(conn);
@@ -665,3 +625,47 @@ int finish_connect(struct child_process *conn)
free(conn);
return code;
}
+
+char *git_getpass(const char *prompt)
+{
+ const char *askpass;
+ struct child_process pass;
+ const char *args[3];
+ static struct strbuf buffer = STRBUF_INIT;
+
+ askpass = getenv("GIT_ASKPASS");
+ if (!askpass)
+ askpass = askpass_program;
+ if (!askpass)
+ askpass = getenv("SSH_ASKPASS");
+ if (!askpass || !(*askpass)) {
+ char *result = getpass(prompt);
+ if (!result)
+ die_errno("Could not read password");
+ return result;
+ }
+
+ args[0] = askpass;
+ args[1] = prompt;
+ args[2] = NULL;
+
+ memset(&pass, 0, sizeof(pass));
+ pass.argv = args;
+ pass.out = -1;
+
+ if (start_command(&pass))
+ exit(1);
+
+ strbuf_reset(&buffer);
+ if (strbuf_read(&buffer, pass.out, 20) < 0)
+ die("failed to read password from %s\n", askpass);
+
+ close(pass.out);
+
+ if (finish_command(&pass))
+ exit(1);
+
+ strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
+
+ return buffer.buf;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-08 23:44:31 +0000