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synced 2024-09-20 18:43:10 +02:00
001d4a27db
Allow traditional ssh path specifiers (host:path), and let the user override the command name on the other end. With this, I can push to kernel.org with this script export GIT_SSH_PULL=/home/torvalds/bin/git-ssh-pull git-ssh-push -a -v -w heads/master heads/master master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git which while not pretty is at least workable.
67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
#include "rsh.h"
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include "cache.h"
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#define COMMAND_SIZE 4096
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int setup_connection(int *fd_in, int *fd_out, const char *remote_prog,
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char *url, int rmt_argc, char **rmt_argv)
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{
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char *host;
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char *path;
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int sv[2];
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char command[COMMAND_SIZE];
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char *posn;
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int i;
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if (!strcmp(url, "-")) {
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*fd_in = 0;
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*fd_out = 1;
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return 0;
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}
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host = strstr(url, "//");
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if (host) {
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host += 2;
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path = strchr(host, '/');
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} else {
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host = url;
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path = strchr(host, ':');
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}
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if (!path) {
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return error("Bad URL: %s", url);
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}
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*(path++) = '\0';
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/* ssh <host> 'cd /<path>; stdio-pull <arg...> <commit-id>' */
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snprintf(command, COMMAND_SIZE,
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"%s='/%s' %s",
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GIT_DIR_ENVIRONMENT, path, remote_prog);
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posn = command + strlen(command);
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for (i = 0; i < rmt_argc; i++) {
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*(posn++) = ' ';
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strncpy(posn, rmt_argv[i], COMMAND_SIZE - (posn - command));
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posn += strlen(rmt_argv[i]);
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if (posn - command + 4 >= COMMAND_SIZE) {
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return error("Command line too long");
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}
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}
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strcpy(posn, " -");
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if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv)) {
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return error("Couldn't create socket");
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}
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if (!fork()) {
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close(sv[1]);
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dup2(sv[0], 0);
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dup2(sv[0], 1);
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execlp("ssh", "ssh", host, command, NULL);
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}
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close(sv[0]);
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*fd_in = sv[1];
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*fd_out = sv[1];
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return 0;
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}
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