diff options
Diffstat (limited to 'connect.c')
| -rw-r--r-- | connect.c | 168 |
1 files changed, 144 insertions, 24 deletions
@@ -427,7 +427,7 @@ static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path) memset(&sa, 0, sizeof sa); sa.sin_family = he->h_addrtype; sa.sin_port = htons(nport); - memcpy(&sa.sin_addr, ap, he->h_length); + memcpy(&sa.sin_addr, *ap, he->h_length); if (connect(sockfd, (struct sockaddr *)&sa, sizeof sa) < 0) { close(sockfd); @@ -448,42 +448,162 @@ static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path) #endif /* NO_IPV6 */ +static char *git_proxy_command = NULL; +static const char *rhost_name = NULL; +static int rhost_len; + +static int git_proxy_command_options(const char *var, const char *value) +{ + if (!strcmp(var, "core.gitproxy")) { + const char *for_pos; + int matchlen = -1; + int hostlen; + + if (git_proxy_command) + return 0; + /* [core] + * ;# matches www.kernel.org as well + * gitproxy = netcatter-1 for kernel.org + * gitproxy = netcatter-2 for sample.xz + * gitproxy = netcatter-default + */ + for_pos = strstr(value, " for "); + if (!for_pos) + /* matches everybody */ + matchlen = strlen(value); + else { + hostlen = strlen(for_pos + 5); + if (rhost_len < hostlen) + matchlen = -1; + else if (!strncmp(for_pos + 5, + rhost_name + rhost_len - hostlen, + hostlen) && + ((rhost_len == hostlen) || + rhost_name[rhost_len - hostlen -1] == '.')) + matchlen = for_pos - value; + else + matchlen = -1; + } + if (0 <= matchlen) { + /* core.gitproxy = none for kernel.org */ + if (matchlen == 4 && + !memcmp(value, "none", 4)) + matchlen = 0; + git_proxy_command = xmalloc(matchlen + 1); + memcpy(git_proxy_command, value, matchlen); + git_proxy_command[matchlen] = 0; + } + return 0; + } + + return git_default_config(var, 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); + rhost_name = NULL; + return (git_proxy_command && *git_proxy_command); +} + +static int git_proxy_connect(int fd[2], const char *prog, char *host, char *path) +{ + char *port = STR(DEFAULT_GIT_PORT); + char *colon, *end; + int pipefd[2][2]; + pid_t pid; + + 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 (pipe(pipefd[0]) < 0 || pipe(pipefd[1]) < 0) + die("unable to create pipe pair for communication"); + pid = fork(); + if (!pid) { + dup2(pipefd[1][0], 0); + dup2(pipefd[0][1], 1); + close(pipefd[0][0]); + close(pipefd[0][1]); + close(pipefd[1][0]); + close(pipefd[1][1]); + execlp(git_proxy_command, git_proxy_command, host, port, NULL); + die("exec failed"); + } + fd[0] = pipefd[0][0]; + fd[1] = pipefd[1][1]; + close(pipefd[0][1]); + close(pipefd[1][0]); + packet_write(fd[1], "%s %s\n", prog, path); + return pid; +} + /* * Yeah, yeah, fixme. Need to pass in the heads etc. */ int git_connect(int fd[2], char *url, const char *prog) { char command[1024]; - char *host, *path; - char *colon; + char *host, *path = url; + char *colon = NULL; int pipefd[2][2]; pid_t pid; - enum protocol protocol; - - host = NULL; - path = url; - colon = strchr(url, ':'); - protocol = PROTO_LOCAL; - if (colon) { - *colon = 0; + enum protocol protocol = PROTO_LOCAL; + + host = strstr(url, "://"); + if(host) { + *host = '\0'; + protocol = get_protocol(url); + host += 3; + path = strchr(host, '/'); + } + else { host = url; - path = colon+1; - protocol = PROTO_SSH; - if (!memcmp(path, "//", 2)) { - char *slash = strchr(path + 2, '/'); - if (slash) { - int nr = slash - path - 2; - memmove(path, path+2, nr); - path[nr] = 0; - protocol = get_protocol(url); - host = path; - path = slash; - } + if ((colon = strchr(host, ':'))) { + protocol = PROTO_SSH; + *colon = '\0'; + path = colon + 1; } } - if (protocol == PROTO_GIT) + if (!path || !*path) + die("No path specified. See 'man git-pull' for valid url syntax"); + + /* + * null-terminate hostname and point path to ~ for URL's like this: + * ssh://host.xz/~user/repo + */ + if (protocol != PROTO_LOCAL && host != url) { + char *ptr = path; + if (path[1] == '~') + path++; + else + path = strdup(ptr); + + *ptr = '\0'; + } + + if (protocol == PROTO_GIT) { + if (git_use_proxy(host)) + return git_proxy_connect(fd, prog, host, path); return git_tcp_connect(fd, prog, host, path); + } if (pipe(pipefd[0]) < 0 || pipe(pipefd[1]) < 0) die("unable to create pipe pair for communication"); |