From 07cf92676ae70daab83d5aa248f24c003c07001d Mon Sep 17 00:00:00 2001 From: Glenn L McGrath Date: Fri, 3 Oct 2003 13:15:44 +0000 Subject: [PATCH] Dont mix xarg options with utility option, fixes example of `echo "README" | xargs ls -al` Dont specify a path for the default behaviour of echo args allocated space for an extra ptr Use defines for the different options --- findutils/xargs.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/findutils/xargs.c b/findutils/xargs.c index 2b18f8f28..298c000dc 100644 --- a/findutils/xargs.c +++ b/findutils/xargs.c @@ -20,6 +20,8 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * + * BUGS: -p doesnt accept user input + * */ #include @@ -61,28 +63,29 @@ static void xargs_exec(char * const * args) } } +#define OPT_VERBOSE 0x2 +#define OPT_INTERACTIVE 0x4 +#define OPT_NO_EMPTY 0x8 + int xargs_main(int argc, char **argv) { char *file_to_act_on; char **args; int i, a; - char flg_vi; /* verbose |& interactive */ - char flg_no_empty; + unsigned long flg; bb_opt_complementaly = "pt"; - a = bb_getopt_ulflags(argc, argv, "tpr"); - flg_vi = a & 3; - flg_no_empty = a & 4; + flg = bb_getopt_ulflags(argc, argv, "+tpr"); a = argc - optind; argv += optind; if(a==0) { /* default behavior is to echo all the filenames */ - *argv = "/bin/echo"; + *argv = "echo"; a++; } /* allocating pointers for execvp: a*arg, arg from stdin, NULL */ - args = xcalloc(a + 3, sizeof(char *)); + args = xcalloc(a + 2, sizeof(char *)); /* Store the command to be executed (taken from the command line) */ for (i = 0; i < a; i++) @@ -91,17 +94,18 @@ int xargs_main(int argc, char **argv) /* Now, read in one line at a time from stdin, and store this * line to be used later as an argument to the command */ while ((file_to_act_on = bb_get_chomped_line_from_file(stdin)) != NULL) { - if(file_to_act_on[0] != 0 || flg_no_empty == 0) { + if(file_to_act_on[0] != 0 || (flg & OPT_NO_EMPTY) == 0) { args[a] = file_to_act_on[0] ? file_to_act_on : NULL; - if(flg_vi) { + if(flg & (OPT_VERBOSE | OPT_INTERACTIVE)) { for(i=0; args[i]; i++) { if(i) fputc(' ', stderr); fputs(args[i], stderr); } - fputs(((flg_vi & 2) ? " ?..." : "\n"), stderr); + fputs(((flg & OPT_INTERACTIVE) ? " ?..." : "\n"), stderr); } - if((flg_vi & 2) == 0 || bb_ask_confirmation() != 0 ) { + + if((flg & OPT_INTERACTIVE) == 0 || bb_ask_confirmation() != 0 ) { xargs_exec(args); } }