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Catch too many awesome command line options 

Also add --help option.

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Hans Ulrich Niedermann 2008-01-21 15:04:49 +01:00 committed by Julien Danjou
parent 70ce4b8856
commit a34c277081
1 changed files with 21 additions and 3 deletions
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24
awesome.c
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@ -190,6 +190,18 @@ xerror(Display * edpy, XErrorEvent * ee)
return xerrorxlib(edpy, ee); /* may call exit */ return xerrorxlib(edpy, ee); /* may call exit */
} }
/** Print help and exit(2) with given exit_code.
*/
static void
exit_help(int exit_code) __attribute__ ((noreturn))
{
FILE *outfile = (exit_code == EXIT_SUCCESS)?stdout:stderr;
fprintf(outfile, "Usage: awesome [-v | -h | -c configfile]\n");
exit(exit_code);
}
/** Hello, this is main /** Hello, this is main
* \param argc who knows * \param argc who knows
* \param argv who knows * \param argv who knows
@ -210,25 +222,31 @@ main(int argc, char *argv[])
int i, cmdlen; int i, cmdlen;
event_handler **handler; event_handler **handler;
struct sockaddr_un *addr; struct sockaddr_un *addr;
int args_ok = 1;
/* check args */ /* check args */
if(argc >= 2) if(argc >= 2)
{ {
args_ok = 0;
if(!a_strcmp("-v", argv[1]) || !a_strcmp("--version", argv[1])) if(!a_strcmp("-v", argv[1]) || !a_strcmp("--version", argv[1]))
{ {
printf("awesome " VERSION " (" RELEASE ")\n"); printf("awesome " VERSION " (" RELEASE ")\n");
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }
else if(!a_strcmp("-h", argv[1]) || !a_strcmp("--help", argv[1]))
exit_help(EXIT_SUCCESS);
else if(!a_strcmp("-c", argv[1])) else if(!a_strcmp("-c", argv[1]))
{ {
if(a_strlen(argv[2])) if(a_strlen(argv[2]))
confpath = argv[2]; confpath = argv[2], args_ok = 1;
else else
eprint("-c require a file\n"); eprint("-c option requires a file name\n");
} }
else else
eprint("options: [-v | -c configfile]\n"); exit_help(EXIT_FAILURE);
} }
if(!args_ok)
exit_help(EXIT_FAILURE);
/* Text won't be printed correctly otherwise */ /* Text won't be printed correctly otherwise */
setlocale(LC_CTYPE, ""); setlocale(LC_CTYPE, "");