fish-shell/print_help.c
Grissiom c6372a1b3f remove trailing spaces
This is done by `sed -i -e 's/[ \t]*$//' *.[c,h]`, which should not
introduce any functionality change.
2010-09-18 09:51:16 +08:00

34 lines
578 B
C

/** \file print_help.c
Print help message for the specified command
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "print_help.h"
#define CMD_LEN 1024
#define HELP_ERR "Could not show help message\n"
/* defined in common.h */
ssize_t write_loop(int fd, char *buff, size_t count);
void print_help( char *c, int fd )
{
char cmd[ CMD_LEN];
int printed = snprintf( cmd, CMD_LEN, "fish -c '__fish_print_help %s >&%d'", c, fd );
if( printed < CMD_LEN )
{
if( (system( cmd ) == -1) )
{
write_loop(2, HELP_ERR, strlen(HELP_ERR));
}
}
}