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1) read from stdin work now

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2) destroy segfault in number_process
3) removes dead code

complex patch my and Tito
This commit is contained in:
"Vladimir N. Oleynik" 2005-09-19 14:23:46 +00:00
parent b71e6024f9
commit bc37480e9c
1 changed files with 21 additions and 34 deletions
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55
miscutils/less.c
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@ -108,11 +108,6 @@ static unsigned long flags;
/* This is needed so that program behaviour changes when input comes from
stdin */
static int inp_stdin;
/* This is required so that when a file is requested to be examined after
input has come from stdin (e.g. dmesg | less), the input stream from
the keyboard still stays the same. If it switched back to stdin, keyboard
input wouldn't work. */
static int ea_inp_stdin;
#ifdef CONFIG_FEATURE_LESS_MARKS
static int mark_lines[15][2];
@ -137,12 +132,12 @@ static FILE *inp;
/* Reset terminal input to normal */
static void set_tty_cooked(void) {
fflush(stdout);
tcsetattr(0, TCSANOW, &term_orig);
tcsetattr(fileno(inp), TCSANOW, &term_orig);
}
/* Set terminal input to raw mode (taken from vi.c) */
static void set_tty_raw(void) {
tcsetattr(0, TCSANOW, &term_vi);
tcsetattr(fileno(inp), TCSANOW, &term_vi);
}
/* Exit the program gracefully */
@ -224,35 +219,26 @@ static void data_readlines(void) {
FILE *fp;
fp = (inp_stdin) ? stdin : bb_xfopen(filename, "rt");
/* First of all, we need to know the number of lines so that flines can be initialised. */
for (i = 0; (!feof(fp)) && (i <= MAXLINES); i++)
fgets(current_line, 256, fp);
rewind(fp);
/* Initialise fp */
flines = malloc(i * sizeof(char *));
for (i = 0; (!feof(fp)) && (i <= MAXLINES); i++) {
flines = NULL;
for (i = 0; (feof(fp)==0) && (i <= MAXLINES); i++) {
strcpy(current_line, "");
fgets(current_line, 256, fp);
bb_xferror(fp, filename);
if(fp != stdin)
bb_xferror(fp, filename);
flines = xrealloc(flines, (i+1) * sizeof(char *));
flines[i] = bb_xstrdup(current_line);
}
num_flines = i - 2;
/* Reset variables for a new file */
/* Reset variables for a new file */
line_pos = 0;
past_eof = 0;
fclose(fp);
inp = (inp_stdin) ? fopen(CURRENT_TTY, "r") : stdin;
if (ea_inp_stdin) {
fclose(inp);
inp = fopen(CURRENT_TTY, "r");
}
if(inp == NULL)
inp = (inp_stdin) ? fopen(CURRENT_TTY, "r") : stdin;
if (flags & FLAG_N)
add_linenumbers();
@ -544,7 +530,6 @@ static void examine_file(void) {
num_files++;
inp_stdin = 0;
ea_inp_stdin = 1;
reinitialise();
}
@ -757,14 +742,16 @@ static void number_process(int first_digit) {
int num;
char num_input[80];
char keypress;
char *endptr;
num_input[0] = first_digit;
/* Clear the current line, print a prompt, and then print the digit */
clear_line();
printf(":%c", first_digit);
/* Receive input until a letter is given */
while((num_input[i] = tless_getch()) && isdigit(num_input[i])) {
/* Receive input until a letter is given (max 80 chars)*/
while((i < 80) && (num_input[i] = tless_getch()) && isdigit(num_input[i])) {
printf("%c", num_input[i]);
i++;
}
@ -772,8 +759,9 @@ static void number_process(int first_digit) {
/* Take the final letter out of the digits string */
keypress = num_input[i];
num_input[i] = '\0';
i--;
num = atoi(num_input);
num = strtol(num_input, &endptr, 10);
if (endptr==num_input || *endptr!='\0' || num < 1 || num > MAXLINES)
goto END;
/* We now know the number and the letter entered, so we process them */
switch (keypress) {
@ -806,7 +794,7 @@ static void number_process(int first_digit) {
default:
break;
}
END:
buffer_print();
}
@ -1165,17 +1153,16 @@ int less_main(int argc, char **argv) {
}
}
strcpy(filename, (inp_stdin) ? "stdin" : files[0]);
strcpy(filename, (inp_stdin) ? bb_msg_standard_input : files[0]);
tty_width_height();
tcgetattr(0, &term_orig);
data_readlines();
tcgetattr(fileno(inp), &term_orig);
term_vi = term_orig;
term_vi.c_lflag &= (~ICANON & ~ECHO);
term_vi.c_iflag &= (~IXON & ~ICRNL);
term_vi.c_oflag &= (~ONLCR);
term_vi.c_cc[VMIN] = 1;
term_vi.c_cc[VTIME] = 0;
data_readlines();
buffer_init();
buffer_print();