diff options
Diffstat (limited to 'shell.c')
| -rw-r--r-- | shell.c | 50 |
1 files changed, 46 insertions, 4 deletions
@@ -1,11 +1,13 @@ #include "cache.h" #include "quote.h" #include "exec_cmd.h" +#include "strbuf.h" static int do_generic_cmd(const char *me, char *arg) { const char *my_argv[4]; + setup_path(); if (!arg || !(arg = sq_dequote(arg))) die("bad argument"); if (prefixcmp(me, "git-")) @@ -18,12 +20,28 @@ static int do_generic_cmd(const char *me, char *arg) return execv_git_cmd(my_argv); } +static int do_cvs_cmd(const char *me, char *arg) +{ + const char *cvsserver_argv[3] = { + "cvsserver", "server", NULL + }; + + if (!arg || strcmp(arg, "server")) + die("git-cvsserver only handles server: %s", arg); + + setup_path(); + return execv_git_cmd(cvsserver_argv); +} + + static struct commands { const char *name; int (*exec)(const char *me, char *arg); } cmd_list[] = { { "git-receive-pack", do_generic_cmd }, { "git-upload-pack", do_generic_cmd }, + { "git-upload-archive", do_generic_cmd }, + { "cvs", do_cvs_cmd }, { NULL }, }; @@ -31,14 +49,38 @@ int main(int argc, char **argv) { char *prog; struct commands *cmd; + int devnull_fd; + + /* + * Always open file descriptors 0/1/2 to avoid clobbering files + * in die(). It also avoids not messing up when the pipes are + * dup'ed onto stdin/stdout/stderr in the child processes we spawn. + */ + devnull_fd = open("/dev/null", O_RDWR); + while (devnull_fd >= 0 && devnull_fd <= 2) + devnull_fd = dup(devnull_fd); + if (devnull_fd == -1) + die_errno("opening /dev/null failed"); + close (devnull_fd); - /* We want to see "-c cmd args", and nothing else */ - if (argc != 3 || strcmp(argv[1], "-c")) + /* + * Special hack to pretend to be a CVS server + */ + if (argc == 2 && !strcmp(argv[1], "cvs server")) + argv--; + + /* + * We do not accept anything but "-c" followed by "cmd arg", + * where "cmd" is a very limited subset of git commands. + */ + else if (argc != 3 || strcmp(argv[1], "-c")) die("What do you think I am? A shell?"); prog = argv[2]; - argv += 2; - argc -= 2; + if (!strncmp(prog, "git", 3) && isspace(prog[3])) + /* Accept "git foo" as if the caller said "git-foo". */ + prog[3] = '-'; + for (cmd = cmd_list ; cmd->name ; cmd++) { int len = strlen(cmd->name); char *arg; |