X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=daemon%2Fdebug.c;h=68320a3112cbf0f6cb54599aaf659516192c4eb5;hp=ce760e6f3e373c23672ba64d81d3158026edd41a;hb=a82bfb88e553c6626c99757779f9b500664409ba;hpb=887290e949d54c6ac4c9b787231e588f84f2367c diff --git a/daemon/debug.c b/daemon/debug.c index ce760e6..68320a3 100644 --- a/daemon/debug.c +++ b/daemon/debug.c @@ -1,5 +1,5 @@ /* libguestfs - the guestfsd daemon - * Copyright (C) 2009 Red Hat Inc. + * Copyright (C) 2009 Red Hat Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -189,23 +189,47 @@ debug_segv (const char *subcmd, int argc, char *const *const argv) return NULL; } -/* Run an arbitrary shell command. */ +/* Run an arbitrary shell command using /bin/sh from the appliance. + * + * Note this is somewhat different from the ordinary guestfs_sh command + * because it's not using the guest shell, and is not chrooted. + * + * Also we ignore any errors and you can see the full output if you + * add 2>&1 to the end of the command string. + */ static char * debug_sh (const char *subcmd, int argc, char *const *const argv) { - int r; - char *out, *err; + char *cmd; + int len, i, j; + char *out; - r = commandv (&out, &err, argv); - if (r == -1) { - reply_with_error ("sh: %s", err); - free (out); - free (err); + if (argc < 1) { + reply_with_error ("debug: sh: expecting a command to run"); return NULL; } - free (err); + /* guestfish splits the parameter(s) into a list of strings, + * and we have to reassemble them here. Not ideal. XXX + */ + for (i = len = 0; i < argc; ++i) + len += strlen (argv[i]) + 1; + cmd = malloc (len); + if (!cmd) { + reply_with_perror ("malloc"); + return NULL; + } + for (i = j = 0; i < argc; ++i) { + len = strlen (argv[i]); + memcpy (&cmd[j], argv[i], len); + j += len; + cmd[j] = ' '; + j++; + } + cmd[j-1] = '\0'; + command (&out, NULL, "/bin/sh", "-c", cmd, NULL); + free (cmd); return out; }