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authorDenis Vlasenko2006-12-10 01:57:29 +0000
committerDenis Vlasenko2006-12-10 01:57:29 +0000
commitb15b7f7a4a06733fde996737110524d119b69106 (patch)
treece388ce05306c1585e2af28047d6c9caa01b34ad /util-linux/more.c
parent57d83ff5f9e56e881d0c75ee981db3fb3f1d4903 (diff)
downloadbusybox-b15b7f7a4a06733fde996737110524d119b69106.zip
busybox-b15b7f7a4a06733fde996737110524d119b69106.tar.gz
more: fix for case when _FILE_OFFSET_BITS is not #defined.
samll size improvement.
Diffstat (limited to 'util-linux/more.c')
-rw-r--r--util-linux/more.c68
1 files changed, 28 insertions, 40 deletions
diff --git a/util-linux/more.c b/util-linux/more.c
index 85209ce..d048ace 100644
--- a/util-linux/more.c
+++ b/util-linux/more.c
@@ -17,11 +17,11 @@
#include "busybox.h"
-#ifdef CONFIG_FEATURE_USE_TERMIOS
+#if ENABLE_FEATURE_USE_TERMIOS
static int cin_fileno;
#include <termios.h>
-#define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
-#define getTermSettings(fd,argp) tcgetattr(fd, argp);
+#define setTermSettings(fd, argp) tcsetattr(fd, TCSANOW, argp)
+#define getTermSettings(fd, argp) tcgetattr(fd, argp);
static struct termios initial_settings, new_settings;
@@ -35,7 +35,7 @@ static void gotsig(int sig)
putchar('\n');
exit(EXIT_FAILURE);
}
-#endif /* CONFIG_FEATURE_USE_TERMIOS */
+#endif /* FEATURE_USE_TERMIOS */
int more_main(int argc, char **argv)
@@ -52,14 +52,14 @@ int more_main(int argc, char **argv)
argc--;
argv++;
-
- /* not use inputing from terminal if usage: more > outfile */
- if(isatty(STDOUT_FILENO)) {
+ cin = stdin;
+ /* use input from terminal unless we do "more >outfile" */
+ if (isatty(STDOUT_FILENO)) {
cin = fopen(CURRENT_TTY, "r");
if (!cin)
cin = xfopen(CONSOLE_DEV, "r");
please_display_more_prompt = 2;
-#ifdef CONFIG_FEATURE_USE_TERMIOS
+#if ENABLE_FEATURE_USE_TERMIOS
cin_fileno = fileno(cin);
getTermSettings(cin_fileno, &initial_settings);
new_settings = initial_settings;
@@ -69,21 +69,19 @@ int more_main(int argc, char **argv)
new_settings.c_cc[VTIME] = 0;
setTermSettings(cin_fileno, &new_settings);
atexit(set_tty_to_initial_mode);
- (void) signal(SIGINT, gotsig);
- (void) signal(SIGQUIT, gotsig);
- (void) signal(SIGTERM, gotsig);
+ signal(SIGINT, gotsig);
+ signal(SIGQUIT, gotsig);
+ signal(SIGTERM, gotsig);
#endif
- } else {
- cin = stdin;
}
do {
- if (argc == 0) {
- file = stdin;
- } else
+ file = stdin;
+ if (argc != 0) {
file = fopen_or_warn(*argv, "r");
- if(file==0)
- goto loop;
+ if (!file)
+ goto loop;
+ }
st.st_size = 0;
fstat(fileno(file), &st);
@@ -96,7 +94,7 @@ int more_main(int argc, char **argv)
if (terminal_width > 0)
terminal_width -= 1;
- len=0;
+ len = 0;
lines = 0;
page_height = terminal_height;
while ((c = getc(file)) != EOF) {
@@ -104,17 +102,10 @@ int more_main(int argc, char **argv)
if ((please_display_more_prompt & 3) == 3) {
len = printf("--More-- ");
if (file != stdin && st.st_size > 0) {
-#if _FILE_OFFSET_BITS == 64
- len += printf("(%d%% of %lld bytes)",
- (int) (100 * ((double) ftell(file) /
- (double) st.st_size)), (long long)st.st_size);
-#else
- len += printf("(%d%% of %ld bytes)",
- (int) (100 * ((double) ftell(file) /
- (double) st.st_size)), (long)st.st_size);
-#endif
+ len += printf("(%d%% of %"OFF_FMT"d bytes)",
+ (int) (ftello(file)*100 / st.st_size),
+ st.st_size);
}
-
fflush(stdout);
/*
@@ -122,15 +113,12 @@ int more_main(int argc, char **argv)
* to get input from the user.
*/
input = getc(cin);
-#ifndef CONFIG_FEATURE_USE_TERMIOS
+#if !ENABLE_FEATURE_USE_TERMIOS
printf("\033[A"); /* up cursor */
#endif
/* Erase the "More" message */
- putc('\r', stdout);
- while (--len >= 0)
- putc(' ', stdout);
- putc('\r', stdout);
- len=0;
+ printf("\r%*s\r", len, "");
+ len = 0;
lines = 0;
page_height = terminal_height;
please_display_more_prompt &= ~1;
@@ -162,15 +150,15 @@ int more_main(int argc, char **argv)
rem = len - (quot * terminal_width);
if (quot) {
if (rem)
- page_height-=quot;
+ page_height -= quot;
else
- page_height-=(quot-1);
+ page_height -= (quot - 1);
}
}
if (++lines >= page_height) {
please_display_more_prompt |= 1;
}
- len=0;
+ len = 0;
}
/*
* If we just read a newline from the file being 'mored' and any
@@ -181,9 +169,9 @@ int more_main(int argc, char **argv)
}
fclose(file);
fflush(stdout);
-loop:
+ loop:
argv++;
} while (--argc > 0);
- end:
+ end:
return 0;
}