X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=src%2Fguestfs-actions.c;h=f49e79f99f12beb4180d8e777a85261472f2ca34;hb=0faa5dde7b992ba11bb88f77b3424676c7c492e4;hp=3da1b42b3e934f6b4ff917909faf91f5a0e5f444;hpb=f47dafd23186938a22d41739d9bc695c7760b912;p=libguestfs.git diff --git a/src/guestfs-actions.c b/src/guestfs-actions.c index 3da1b42..f49e79f 100644 --- a/src/guestfs-actions.c +++ b/src/guestfs-actions.c @@ -8428,3 +8428,288 @@ int guestfs_equal (guestfs_h *g, return ctx.ret.equality; } +struct strings_ctx { + /* This flag is set by the callbacks, so we know we've done + * the callbacks as expected, and in the right sequence. + * 0 = not called, 1 = reply_cb called. + */ + int cb_sequence; + struct guestfs_message_header hdr; + struct guestfs_message_error err; + struct guestfs_strings_ret ret; +}; + +static void strings_reply_cb (guestfs_h *g, void *data, XDR *xdr) +{ + guestfs_main_loop *ml = guestfs_get_main_loop (g); + struct strings_ctx *ctx = (struct strings_ctx *) data; + + /* This should definitely not happen. */ + if (ctx->cb_sequence != 0) { + ctx->cb_sequence = 9999; + error (g, "%s: internal error: reply callback called twice", "guestfs_strings"); + return; + } + + ml->main_loop_quit (ml, g); + + if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) { + error (g, "%s: failed to parse reply header", "guestfs_strings"); + return; + } + if (ctx->hdr.status == GUESTFS_STATUS_ERROR) { + if (!xdr_guestfs_message_error (xdr, &ctx->err)) { + error (g, "%s: failed to parse reply error", "guestfs_strings"); + return; + } + goto done; + } + if (!xdr_guestfs_strings_ret (xdr, &ctx->ret)) { + error (g, "%s: failed to parse reply", "guestfs_strings"); + return; + } + done: + ctx->cb_sequence = 1; +} + +char **guestfs_strings (guestfs_h *g, + const char *path) +{ + struct guestfs_strings_args args; + struct strings_ctx ctx; + guestfs_main_loop *ml = guestfs_get_main_loop (g); + int serial; + + if (check_state (g, "guestfs_strings") == -1) return NULL; + guestfs_set_busy (g); + + memset (&ctx, 0, sizeof ctx); + + args.path = (char *) path; + serial = guestfs__send_sync (g, GUESTFS_PROC_STRINGS, + (xdrproc_t) xdr_guestfs_strings_args, (char *) &args); + if (serial == -1) { + guestfs_set_ready (g); + return NULL; + } + + guestfs__switch_to_receiving (g); + ctx.cb_sequence = 0; + guestfs_set_reply_callback (g, strings_reply_cb, &ctx); + (void) ml->main_loop_run (ml, g); + guestfs_set_reply_callback (g, NULL, NULL); + if (ctx.cb_sequence != 1) { + error (g, "%s reply failed, see earlier error messages", "guestfs_strings"); + guestfs_set_ready (g); + return NULL; + } + + if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_STRINGS, serial) == -1) { + guestfs_set_ready (g); + return NULL; + } + + if (ctx.hdr.status == GUESTFS_STATUS_ERROR) { + error (g, "%s", ctx.err.error_message); + guestfs_set_ready (g); + return NULL; + } + + guestfs_set_ready (g); + /* caller will free this, but we need to add a NULL entry */ + ctx.ret.stringsout.stringsout_val = + safe_realloc (g, ctx.ret.stringsout.stringsout_val, + sizeof (char *) * (ctx.ret.stringsout.stringsout_len + 1)); + ctx.ret.stringsout.stringsout_val[ctx.ret.stringsout.stringsout_len] = NULL; + return ctx.ret.stringsout.stringsout_val; +} + +struct strings_e_ctx { + /* This flag is set by the callbacks, so we know we've done + * the callbacks as expected, and in the right sequence. + * 0 = not called, 1 = reply_cb called. + */ + int cb_sequence; + struct guestfs_message_header hdr; + struct guestfs_message_error err; + struct guestfs_strings_e_ret ret; +}; + +static void strings_e_reply_cb (guestfs_h *g, void *data, XDR *xdr) +{ + guestfs_main_loop *ml = guestfs_get_main_loop (g); + struct strings_e_ctx *ctx = (struct strings_e_ctx *) data; + + /* This should definitely not happen. */ + if (ctx->cb_sequence != 0) { + ctx->cb_sequence = 9999; + error (g, "%s: internal error: reply callback called twice", "guestfs_strings_e"); + return; + } + + ml->main_loop_quit (ml, g); + + if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) { + error (g, "%s: failed to parse reply header", "guestfs_strings_e"); + return; + } + if (ctx->hdr.status == GUESTFS_STATUS_ERROR) { + if (!xdr_guestfs_message_error (xdr, &ctx->err)) { + error (g, "%s: failed to parse reply error", "guestfs_strings_e"); + return; + } + goto done; + } + if (!xdr_guestfs_strings_e_ret (xdr, &ctx->ret)) { + error (g, "%s: failed to parse reply", "guestfs_strings_e"); + return; + } + done: + ctx->cb_sequence = 1; +} + +char **guestfs_strings_e (guestfs_h *g, + const char *encoding, + const char *path) +{ + struct guestfs_strings_e_args args; + struct strings_e_ctx ctx; + guestfs_main_loop *ml = guestfs_get_main_loop (g); + int serial; + + if (check_state (g, "guestfs_strings_e") == -1) return NULL; + guestfs_set_busy (g); + + memset (&ctx, 0, sizeof ctx); + + args.encoding = (char *) encoding; + args.path = (char *) path; + serial = guestfs__send_sync (g, GUESTFS_PROC_STRINGS_E, + (xdrproc_t) xdr_guestfs_strings_e_args, (char *) &args); + if (serial == -1) { + guestfs_set_ready (g); + return NULL; + } + + guestfs__switch_to_receiving (g); + ctx.cb_sequence = 0; + guestfs_set_reply_callback (g, strings_e_reply_cb, &ctx); + (void) ml->main_loop_run (ml, g); + guestfs_set_reply_callback (g, NULL, NULL); + if (ctx.cb_sequence != 1) { + error (g, "%s reply failed, see earlier error messages", "guestfs_strings_e"); + guestfs_set_ready (g); + return NULL; + } + + if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_STRINGS_E, serial) == -1) { + guestfs_set_ready (g); + return NULL; + } + + if (ctx.hdr.status == GUESTFS_STATUS_ERROR) { + error (g, "%s", ctx.err.error_message); + guestfs_set_ready (g); + return NULL; + } + + guestfs_set_ready (g); + /* caller will free this, but we need to add a NULL entry */ + ctx.ret.stringsout.stringsout_val = + safe_realloc (g, ctx.ret.stringsout.stringsout_val, + sizeof (char *) * (ctx.ret.stringsout.stringsout_len + 1)); + ctx.ret.stringsout.stringsout_val[ctx.ret.stringsout.stringsout_len] = NULL; + return ctx.ret.stringsout.stringsout_val; +} + +struct hexdump_ctx { + /* This flag is set by the callbacks, so we know we've done + * the callbacks as expected, and in the right sequence. + * 0 = not called, 1 = reply_cb called. + */ + int cb_sequence; + struct guestfs_message_header hdr; + struct guestfs_message_error err; + struct guestfs_hexdump_ret ret; +}; + +static void hexdump_reply_cb (guestfs_h *g, void *data, XDR *xdr) +{ + guestfs_main_loop *ml = guestfs_get_main_loop (g); + struct hexdump_ctx *ctx = (struct hexdump_ctx *) data; + + /* This should definitely not happen. */ + if (ctx->cb_sequence != 0) { + ctx->cb_sequence = 9999; + error (g, "%s: internal error: reply callback called twice", "guestfs_hexdump"); + return; + } + + ml->main_loop_quit (ml, g); + + if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) { + error (g, "%s: failed to parse reply header", "guestfs_hexdump"); + return; + } + if (ctx->hdr.status == GUESTFS_STATUS_ERROR) { + if (!xdr_guestfs_message_error (xdr, &ctx->err)) { + error (g, "%s: failed to parse reply error", "guestfs_hexdump"); + return; + } + goto done; + } + if (!xdr_guestfs_hexdump_ret (xdr, &ctx->ret)) { + error (g, "%s: failed to parse reply", "guestfs_hexdump"); + return; + } + done: + ctx->cb_sequence = 1; +} + +char *guestfs_hexdump (guestfs_h *g, + const char *path) +{ + struct guestfs_hexdump_args args; + struct hexdump_ctx ctx; + guestfs_main_loop *ml = guestfs_get_main_loop (g); + int serial; + + if (check_state (g, "guestfs_hexdump") == -1) return NULL; + guestfs_set_busy (g); + + memset (&ctx, 0, sizeof ctx); + + args.path = (char *) path; + serial = guestfs__send_sync (g, GUESTFS_PROC_HEXDUMP, + (xdrproc_t) xdr_guestfs_hexdump_args, (char *) &args); + if (serial == -1) { + guestfs_set_ready (g); + return NULL; + } + + guestfs__switch_to_receiving (g); + ctx.cb_sequence = 0; + guestfs_set_reply_callback (g, hexdump_reply_cb, &ctx); + (void) ml->main_loop_run (ml, g); + guestfs_set_reply_callback (g, NULL, NULL); + if (ctx.cb_sequence != 1) { + error (g, "%s reply failed, see earlier error messages", "guestfs_hexdump"); + guestfs_set_ready (g); + return NULL; + } + + if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_HEXDUMP, serial) == -1) { + guestfs_set_ready (g); + return NULL; + } + + if (ctx.hdr.status == GUESTFS_STATUS_ERROR) { + error (g, "%s", ctx.err.error_message); + guestfs_set_ready (g); + return NULL; + } + + guestfs_set_ready (g); + return ctx.ret.dump; /* caller will free */ +} +