diff options
Diffstat (limited to 'atobm.c')
| -rw-r--r-- | atobm.c | 22 |
1 files changed, 18 insertions, 4 deletions
@@ -47,7 +47,7 @@ static void doit(FILE *fp, const char *filename, const char *chars, int xhot, int yhot, const char *name); static void _X_NORETURN _X_COLD -usage (const char *msg) +usage (const char *msg, int exitval) { if (msg) fprintf(stderr, "%s: %s\n", ProgramName, msg); @@ -55,10 +55,12 @@ usage (const char *msg) ProgramName, "where options include:\n" " -chars cc chars to use for 0 and 1 bits, respectively\n" + " -help print this message\n" " -name variable name to use in bitmap file\n" + " -version print version info\n" " -xhot number x position of hotspot\n" " -yhot number y position of hotspot\n"); - exit (1); + exit(exitval); } static void _X_NORETURN _X_COLD @@ -67,7 +69,7 @@ missing_arg (const char *option) char msg[32]; snprintf(msg, sizeof(msg), "%s requires an argument", option); - usage(msg); + usage(msg, 1); } static char * @@ -123,10 +125,21 @@ main (int argc, char *argv[]) if (++i >= argc) missing_arg("-chars"); chars = argv[i]; continue; + case 'h': + if (strcmp(arg, "-help") == 0) { + usage(NULL, 0); + } + goto unknown; case 'n': if (++i >= argc) missing_arg("-name"); name = argv[i]; continue; + case 'v': + if (strcmp(arg, "-version") == 0) { + puts(PACKAGE_STRING); + exit(0); + } + goto unknown; case 'x': if (++i >= argc) missing_arg("-xhot"); xhot = atoi (argv[i]); @@ -136,9 +149,10 @@ main (int argc, char *argv[]) yhot = atoi (argv[i]); continue; default: + unknown: fprintf(stderr, "%s: unrecognized option '%s'\n", ProgramName, argv[i]); - usage (NULL); + usage(NULL, 1); } } else { filename = arg; |