*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
+#include <sys/prctl.h>
#include "libbb.h"
#include "mail.h"
-static void kill_helper(void)
-{
- if (G.helper_pid > 0) {
- kill(G.helper_pid, SIGTERM);
- G.helper_pid = 0;
- }
-}
-
// generic signal handler
static void signal_handler(int signo)
{
#define err signo
if (SIGALRM == signo) {
- kill_helper();
- bb_error_msg_and_die("timed out");
+ bb_simple_error_msg_and_die("timed out");
}
// SIGCHLD. reap zombies
G.helper_pid = xvfork();
i = (!G.helper_pid) * 2; // for parent:0, for child:2
- close(pipes[i + 1]); // 1 or 3 - closing one write end
- close(pipes[2 - i]); // 2 or 0 - closing one read end
- xmove_fd(pipes[i], STDIN_FILENO); // 0 or 2 - using other read end
- xmove_fd(pipes[3 - i], STDOUT_FILENO); // 3 or 1 - other write end
+ close(pipes[i + 1]); // 1 or 3 - closing one write end
+ close(pipes[2 - i]); // 2 or 0 - closing one read end
+ xmove_fd(pipes[i], STDIN_FILENO); // 0 or 2 - using other read end
+ xmove_fd(pipes[3 - i], STDOUT_FILENO); // 3 or 1 - using other write end
+ // End result:
+ // parent stdout [3] -> child stdin [2]
+ // child stdout [1] -> parent stdin [0]
if (!G.helper_pid) {
- // child: try to execute connection helper
+ // child
+ // if parent dies, get SIGTERM
+ prctl(PR_SET_PDEATHSIG, SIGTERM, 0, 0, 0);
+ // try to execute connection helper
// NB: SIGCHLD & SIGALRM revert to SIG_DFL on exec
BB_EXECVP_or_die((char**)argv);
}
- // parent
- // check whether child is alive
- //redundant:signal_handler(SIGCHLD);
- // child seems OK -> parent goes on
- atexit(kill_helper);
+ // parent goes on
}
-const FAST_FUNC char *command(const char *fmt, const char *param)
+char* FAST_FUNC send_mail_command(const char *fmt, const char *param)
{
- const char *msg = fmt;
+ char *msg;
if (timeout)
alarm(timeout);
- if (msg) {
+ msg = (char*)fmt;
+ if (fmt) {
msg = xasprintf(fmt, param);
+ if (verbose)
+ bb_error_msg("send:'%s'", msg);
printf("%s\r\n", msg);
}
fflush_all();
// NB: parse_url can modify url[] (despite const), but only if '@' is there
/*
-static char FAST_FUNC *parse_url(char *url, char **user, char **pass)
+static char* FAST_FUNC parse_url(char *url, char **user, char **pass)
{
// parse [user[:pass]@]host
// return host
}
*/
-void FAST_FUNC encode_base64(char *fname, const char *text, const char *eol)
+static void encode_n_base64(const char *fname, const char *text, size_t len)
{
enum {
- SRC_BUF_SIZE = 45, /* This *MUST* be a multiple of 3 */
+ SRC_BUF_SIZE = 57, /* This *MUST* be a multiple of 3 */
DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3),
};
-
#define src_buf text
+ char src[SRC_BUF_SIZE];
FILE *fp = fp;
- ssize_t len = len;
char dst_buf[DST_BUF_SIZE + 1];
if (fname) {
- fp = (NOT_LONE_DASH(fname)) ? xfopen_for_read(fname) : (FILE *)text;
- src_buf = bb_common_bufsiz1;
- // N.B. strlen(NULL) segfaults!
- } else if (text) {
- // though we do not call uuencode(NULL, NULL) explicitly
- // still we do not want to break things suddenly
- len = strlen(text);
- } else
- return;
+ fp = (NOT_LONE_DASH(fname)) ? xfopen_for_read(fname) : stdin;
+ src_buf = src;
+ }
while (1) {
size_t size;
if (fname) {
size = fread((char *)src_buf, 1, SRC_BUF_SIZE, fp);
if ((ssize_t)size < 0)
- bb_perror_msg_and_die(bb_msg_read_error);
+ bb_simple_perror_msg_and_die(bb_msg_read_error);
} else {
size = len;
if (len > SRC_BUF_SIZE)
// encode the buffer we just read in
bb_uuencode(dst_buf, src_buf, size, bb_uuenc_tbl_base64);
if (fname) {
- printf("%s\n", eol);
+ puts("");
} else {
src_buf += size;
len -= size;
#undef src_buf
}
-void FAST_FUNC decode_base64(FILE *src_stream, FILE *dst_stream)
+void FAST_FUNC printstr_base64(const char *text)
{
- int term_count = 1;
-
- while (1) {
- char translated[4];
- int count = 0;
-
- while (count < 4) {
- char *table_ptr;
- int ch;
-
- /* Get next _valid_ character.
- * global vector bb_uuenc_tbl_base64[] contains this string:
- * "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n"
- */
- do {
- ch = fgetc(src_stream);
- if (ch == EOF) {
- bb_error_msg_and_die(bb_msg_read_error);
- }
- // - means end of MIME section
- if ('-' == ch) {
- // push it back
- ungetc(ch, src_stream);
- return;
- }
- table_ptr = strchr(bb_uuenc_tbl_base64, ch);
- } while (table_ptr == NULL);
-
- /* Convert encoded character to decimal */
- ch = table_ptr - bb_uuenc_tbl_base64;
-
- if (*table_ptr == '=') {
- if (term_count == 0) {
- translated[count] = '\0';
- break;
- }
- term_count++;
- } else if (*table_ptr == '\n') {
- /* Check for terminating line */
- if (term_count == 5) {
- return;
- }
- term_count = 1;
- continue;
- } else {
- translated[count] = ch;
- count++;
- term_count = 0;
- }
- }
+ encode_n_base64(NULL, text, strlen(text));
+}
- /* Merge 6 bit chars to 8 bit */
- if (count > 1) {
- fputc(translated[0] << 2 | translated[1] >> 4, dst_stream);
- }
- if (count > 2) {
- fputc(translated[1] << 4 | translated[2] >> 2, dst_stream);
- }
- if (count > 3) {
- fputc(translated[2] << 6 | translated[3], dst_stream);
- }
- }
+void FAST_FUNC printbuf_base64(const char *text, unsigned len)
+{
+ encode_n_base64(NULL, text, len);
}
+void FAST_FUNC printfile_base64(const char *fname)
+{
+ encode_n_base64(fname, NULL, 0);
+}
/*
* get username and password from a file descriptor
void FAST_FUNC get_cred_or_die(int fd)
{
if (isatty(fd)) {
- G.user = xstrdup(bb_ask(fd, /* timeout: */ 0, "User: "));
- G.pass = xstrdup(bb_ask(fd, /* timeout: */ 0, "Password: "));
+ G.user = bb_ask_noecho(fd, /* timeout: */ 0, "User: ");
+ G.pass = bb_ask_noecho(fd, /* timeout: */ 0, "Password: ");
} else {
- G.user = xmalloc_reads(fd, /* pfx: */ NULL, /* maxsize: */ NULL);
- G.pass = xmalloc_reads(fd, /* pfx: */ NULL, /* maxsize: */ NULL);
+ G.user = xmalloc_reads(fd, /* maxsize: */ NULL);
+ G.pass = xmalloc_reads(fd, /* maxsize: */ NULL);
}
if (!G.user || !*G.user || !G.pass)
- bb_error_msg_and_die("no username or password");
+ bb_simple_error_msg_and_die("no username or password");
}
projects / oweals / busybox.git / blobdiff