/* man_filename is of the form "/dir/dir/dir/name.s" Z_SUFFIX */
static int show_manpage(const char *pager, char *man_filename, int man, int level)
{
#if ENABLE_FEATURE_SEAMLESS_LZMA
if (run_pipe(pager, man_filename, man, level))
return 1;
#endif
#if ENABLE_FEATURE_SEAMLESS_BZ2
#if ENABLE_FEATURE_SEAMLESS_LZMA
strcpy(strrchr(man_filename, '.') + 1, "bz2");
#endif
if (run_pipe(pager, man_filename, man, level))
return 1;
#endif
#if ENABLE_FEATURE_SEAMLESS_GZ
#if ENABLE_FEATURE_SEAMLESS_LZMA || ENABLE_FEATURE_SEAMLESS_BZ2
strcpy(strrchr(man_filename, '.') + 1, "gz");
#endif
if (run_pipe(pager, man_filename, man, level))
return 1;
#endif
#if ENABLE_FEATURE_SEAMLESS_LZMA || ENABLE_FEATURE_SEAMLESS_BZ2 || ENABLE_FEATURE_SEAMLESS_GZ
*strrchr(man_filename, '.') = '\0';
#endif
if (run_pipe(pager, man_filename, man, level))
return 1;
return 0;
}
/* man_filename is of the form "/dir/dir/dir/name.s" */
static int show_manpage(const char *pager, char *man_filename, int man, int level)
{
#if SEAMLESS_COMPRESSION
/* We leak this allocation... */
char *filename_with_zext = xasprintf("%s.lzma", man_filename);
char *ext = strrchr(filename_with_zext, '.') + 1;
#endif
#if ENABLE_FEATURE_SEAMLESS_LZMA
if (run_pipe(pager, filename_with_zext, man, level))
return 1;
#endif
#if ENABLE_FEATURE_SEAMLESS_XZ
strcpy(ext, "xz");
if (run_pipe(pager, filename_with_zext, man, level))
return 1;
#endif
#if ENABLE_FEATURE_SEAMLESS_BZ2
strcpy(ext, "bz2");
if (run_pipe(pager, filename_with_zext, man, level))
return 1;
#endif
#if ENABLE_FEATURE_SEAMLESS_GZ
strcpy(ext, "gz");
if (run_pipe(pager, filename_with_zext, man, level))
return 1;
#endif
return run_pipe(pager, man_filename, man, level);
}
int run_pipe(command_t **comandos, int num_args, int num_args0) //pipeline
{
int pd[2];
int pid;
if(pipe(pd) < 0){
perror("pipe");
exit(1);
}else{
pid = fork();
if (pid < 0) { //erro
perror("fork");
exit(1);
}else if (pid > 0){ //processo pai - roda o comando
close(1);
dup2(pd[1], 1);
close(pd[1]);
close(pd[0]);
if(num_args != 0) run_pipe(comandos,num_args-1, num_args0);
else return 0;
}else{ //processo filho - continua o pipeline
close(0);
dup2(pd[0], 0);
close(pd[0]);
close(pd[1]);
executa_comando(comandos[num_args0-num_args]);
}
}
}