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