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@ -29,7 +29,7 @@ |
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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.\" SUCH DAMAGE. |
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.\" SUCH DAMAGE. |
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.\" |
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.\" |
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.\" $OpenBSD: getopt.3,v 1.13 2000/04/20 13:50:02 aaron Exp $ |
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.\" $OpenBSD: getopt.3,v 1.14 2000/12/15 14:15:27 aaron Exp $ |
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.\" |
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.\" |
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.Dd April 19, 1994 |
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.Dd April 19, 1994 |
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.Dt GETOPT 3 |
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.Dt GETOPT 3 |
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@ -126,6 +126,33 @@ When all options have been processed (i.e., up to the first non-option |
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argument), |
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argument), |
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.Fn getopt |
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.Fn getopt |
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returns \-1. |
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returns \-1. |
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.Sh EXAMPLES |
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.Bd -literal -compact |
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extern char *optarg; |
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extern int optind; |
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int bflag, ch, fd; |
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bflag = 0; |
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while ((ch = getopt(argc, argv, "bf:")) != -1) { |
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switch (ch) { |
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case 'b': |
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bflag = 1; |
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break; |
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case 'f': |
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if ((fd = open(optarg, O_RDONLY, 0)) < 0) { |
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(void)fprintf(stderr, |
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"myname: %s: %s\en", optarg, strerror(errno)); |
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exit(1); |
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} |
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break; |
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case '?': |
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default: |
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usage(); |
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} |
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} |
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argc -= optind; |
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argv += optind; |
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.Ed |
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.Sh SEE ALSO |
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.Sh SEE ALSO |
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.Xr getopt 1 , |
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.Xr getopt 1 , |
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.Xr getsubopt 3 |
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.Xr getsubopt 3 |
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@ -162,33 +189,6 @@ function multiple times. |
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This is an extension to the |
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This is an extension to the |
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.St -p1003.2 |
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.St -p1003.2 |
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specification. |
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specification. |
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.Sh EXAMPLE |
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.Bd -literal -compact |
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extern char *optarg; |
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extern int optind; |
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int bflag, ch, fd; |
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bflag = 0; |
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while ((ch = getopt(argc, argv, "bf:")) != -1) { |
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switch (ch) { |
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case 'b': |
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bflag = 1; |
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break; |
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case 'f': |
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if ((fd = open(optarg, O_RDONLY, 0)) < 0) { |
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(void)fprintf(stderr, |
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"myname: %s: %s\en", optarg, strerror(errno)); |
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exit(1); |
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} |
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break; |
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case '?': |
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default: |
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usage(); |
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} |
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} |
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argc -= optind; |
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argv += optind; |
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.Ed |
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.Sh HISTORY |
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.Sh HISTORY |
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The |
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The |
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.Fn getopt |
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.Fn getopt |
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