X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fpager.c;h=d6474030c444d312d366f8faef04c7100bfa44de;hb=48c6f15efc9def50e7556bb51517687fbaa2fff8;hp=286394072567458582e852e5af9236337d44b968;hpb=56f64d95763a799ba4475daf44d8e9f72a1bd474;p=elogind.git
diff --git a/src/shared/pager.c b/src/shared/pager.c
index 286394072..d6474030c 100644
--- a/src/shared/pager.c
+++ b/src/shared/pager.c
@@ -19,7 +19,6 @@
along with systemd; If not, see .
***/
-#include
#include
#include
#include
@@ -28,19 +27,20 @@
#include "pager.h"
#include "util.h"
+#include "process-util.h"
#include "macro.h"
+#include "terminal-util.h"
+#include "signal-util.h"
+#include "copy.h"
static pid_t pager_pid = 0;
noreturn static void pager_fallback(void) {
- ssize_t n;
-
- do {
- n = splice(STDIN_FILENO, NULL, STDOUT_FILENO, NULL, 64*1024, 0);
- } while (n > 0);
+ int r;
- if (n < 0) {
- log_error_errno(errno, "Internal pager failed: %m");
+ r = copy_bytes(STDIN_FILENO, STDOUT_FILENO, (off_t) -1, false);
+ if (r < 0) {
+ log_error_errno(r, "Internal pager failed: %m");
_exit(EXIT_FAILURE);
}
@@ -67,10 +67,8 @@ int pager_open(bool jump_to_end) {
* pager so that we get the value from the actual tty */
columns();
- if (pipe(fd) < 0) {
- log_error_errno(errno, "Failed to create pager pipe: %m");
- return -errno;
- }
+ if (pipe(fd) < 0)
+ return log_error_errno(errno, "Failed to create pager pipe: %m");
parent_pid = getpid();
@@ -86,6 +84,9 @@ int pager_open(bool jump_to_end) {
if (pager_pid == 0) {
const char* less_opts;
+ (void) reset_all_signal_handlers();
+ (void) reset_signal_mask();
+
dup2(fd[0], STDIN_FILENO);
safe_close_pair(fd);
@@ -93,7 +94,7 @@ int pager_open(bool jump_to_end) {
if (!less_opts)
less_opts = "FRSXMK";
if (jump_to_end)
- less_opts = strappenda(less_opts, " +G");
+ less_opts = strjoina(less_opts, " +G");
setenv("LESS", less_opts, 1);
/* Make sure the pager goes away when the parent dies */
@@ -126,10 +127,8 @@ int pager_open(bool jump_to_end) {
}
/* Return in the parent */
- if (dup2(fd[1], STDOUT_FILENO) < 0) {
- log_error_errno(errno, "Failed to duplicate pager pipe: %m");
- return -errno;
- }
+ if (dup2(fd[1], STDOUT_FILENO) < 0)
+ return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
safe_close_pair(fd);
return 1;
@@ -151,6 +150,8 @@ bool pager_have(void) {
return pager_pid > 0;
}
+/// UNNEEDED by elogind
+#if 0
int show_man_page(const char *desc, bool null_stdio) {
const char *args[4] = { "man", NULL, NULL, NULL };
char *e = NULL;
@@ -176,13 +177,15 @@ int show_man_page(const char *desc, bool null_stdio) {
args[1] = desc;
pid = fork();
- if (pid < 0) {
- log_error_errno(errno, "Failed to fork: %m");
- return -errno;
- }
+ if (pid < 0)
+ return log_error_errno(errno, "Failed to fork: %m");
if (pid == 0) {
/* Child */
+
+ (void) reset_all_signal_handlers();
+ (void) reset_signal_mask();
+
if (null_stdio) {
r = make_null_stdio();
if (r < 0) {
@@ -203,3 +206,4 @@ int show_man_page(const char *desc, bool null_stdio) {
log_debug("Exit code %i status %i", status.si_code, status.si_status);
return status.si_status;
}
+#endif // 0