Differential D6468 Diff 16687 head/contrib/top/commands.c

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head/contrib/top/commands.c

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/*		/*
* This file contains the routines that implement some of the interactive		* This file contains the routines that implement some of the interactive
* mode commands. Note that some of the commands are implemented in-line		* mode commands. Note that some of the commands are implemented in-line
* in "main". This is necessary because they change the global state of		* in "main". This is necessary because they change the global state of
* "top" (i.e.: changing the number of processes to display).		* "top" (i.e.: changing the number of processes to display).
*/		*/

#include "os.h"		#include "os.h"
#include <ctype.h>
#include <signal.h>
#include <errno.h>
#include <sys/time.h>		#include <sys/time.h>
#include <sys/resource.h>		#include <sys/resource.h>

		#include <ctype.h>
		#include <errno.h>
		#include <signal.h>
		#include <unistd.h>

		#include "commands.h"
#include "sigdesc.h" /* generated automatically */		#include "sigdesc.h" /* generated automatically */
#include "top.h"		#include "top.h"
#include "boolean.h"		#include "boolean.h"
#include "utils.h"		#include "utils.h"
		#include "machine.h"

extern int errno;		extern int errno;

extern char *copyright;		extern char *copyright;

/* imported from screen.c */		/* imported from screen.c */
extern int overstrike;		extern int overstrike;

int err_compar();		int err_compar();
char *err_string();		char *err_string();
		static int str_adderr(char *str, int len, int err);
		static int str_addarg(char str, int len, char arg, int first);

/*		/*
* show_help() - display the help screen; invoked in response to		* show_help() - display the help screen; invoked in response to
* either 'h' or '?'.		* either 'h' or '?'.
*/		*/

		void
show_help()		show_help()

{		{
printf("Top version %s, %s\n", version_string(), copyright);		printf("Top version %s, %s\n", version_string(), copyright);
fputs("\n\n\		fputs("\n\n\
A top users display for Unix\n\		A top users display for Unix\n\
\n\		\n\
These single-character commands are available:\n\		These single-character commands are available:\n\
▲ Show 20 Lines • Show All 62 Lines • ▼ Show 20 Lines	return(NULL);
*str = '\0';		*str = '\0';
while (++str == ' ') / loop */;		while (++str == ' ') / loop */;

/* if there is nothing left of the string, return NULL */		/* if there is nothing left of the string, return NULL */
/* This fix is dedicated to Greg Earle */		/* This fix is dedicated to Greg Earle */
return(*str == '\0' ? NULL : str);		return(*str == '\0' ? NULL : str);
}		}

		int
scanint(str, intp)		scanint(str, intp)

char *str;		char *str;
int *intp;		int *intp;

{		{
register int val = 0;		register int val = 0;
register char ch;		register char ch;
▲ Show 20 Lines • Show All 123 Lines • ▼ Show 20 Lines	first = No;
return(stringlen == 0 ? err_listem : string);		return(stringlen == 0 ? err_listem : string);
}		}

/*		/*
* str_adderr(str, len, err) - add an explanation of error "err" to		* str_adderr(str, len, err) - add an explanation of error "err" to
* the string "str".		* the string "str".
*/		*/

		static int
str_adderr(str, len, err)		str_adderr(str, len, err)

char *str;		char *str;
int len;		int len;
int err;		int err;

{		{
register char *msg;		register char *msg;
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}		}

/*		/*
* str_addarg(str, len, arg, first) - add the string argument "arg" to		* str_addarg(str, len, arg, first) - add the string argument "arg" to
* the string "str". This is the first in the group when "first"		* the string "str". This is the first in the group when "first"
* is set (indicating that a comma should NOT be added to the front).		* is set (indicating that a comma should NOT be added to the front).
*/		*/

		static int
str_addarg(str, len, arg, first)		str_addarg(str, len, arg, first)

char *str;		char *str;
int len;		int len;
char *arg;		char *arg;
int first;		int first;

{		{
Show All 16 Lines	(void) strcat(str, ", ");
return(len - arglen);		return(len - arglen);
}		}

/*		/*
* err_compar(p1, p2) - comparison routine used by "qsort"		* err_compar(p1, p2) - comparison routine used by "qsort"
* for sorting errors.		* for sorting errors.
*/		*/

		int
err_compar(p1, p2)		err_compar(p1, p2)

register struct errs p1, p2;		register struct errs p1, p2;

{		{
register int result;		register int result;

if ((result = p1->errnum - p2->errnum) == 0)		if ((result = p1->errnum - p2->errnum) == 0)
{		{
return(strcmp(p1->arg, p2->arg));		return(strcmp(p1->arg, p2->arg));
}		}
return(result);		return(result);
}		}

/*		/*
* error_count() - return the number of errors currently logged.		* error_count() - return the number of errors currently logged.
*/		*/

		int
error_count()		error_count()

{		{
return(errcnt);		return(errcnt);
}		}

/*		/*
* show_errors() - display on stdout the current log of errors.		* show_errors() - display on stdout the current log of errors.
*/		*/

		void
show_errors()		show_errors()

{		{
register int cnt = 0;		register int cnt = 0;
register struct errs *errp = errs;		register struct errs *errp = errs;

printf("%d error%s:\n\n", errcnt, errcnt == 1 ? "" : "s");		printf("%d error%s:\n\n", errcnt, errcnt == 1 ? "" : "s");
while (cnt++ < errcnt)		while (cnt++ < errcnt)
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