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imported mkdosfs, added getopt.c for use with dosfsck

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svn path=/trunk/; revision=16884
This commit is contained in:
Steven Edwards 2005-07-29 22:53:33 +00:00
parent c7cd667539
commit 42f41fa7c2
14 changed files with 1014 additions and 3 deletions
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63
rosapps/sysutils/mkdosfs/getopt.c Normal file
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@ -0,0 +1,63 @@
/*
* $Id$
* This is an unpublished work copyright (c) 1998 HELIOS Software GmbH
* 30827 Garbsen, Germany
*/
#include <stdio.h>
#include <string.h>
#ifdef HAS_UNISTD
# include <unistd.h>
#endif
char *optarg;
int optind = 1;
int opterr = 1;
int optopt;
static int subopt;
static int suboptind = 1;
int getopt(int argc, char *const argv[], const char * optstring)
{
char *curopt;
char *p;
int cursubopt;
if (suboptind == optind-1 && argv[suboptind][subopt] != '\0') {
curopt = (char *)argv[suboptind];
} else {
curopt = (char *)argv[optind];
if (curopt == NULL || curopt[0] != '-' || strcmp(curopt, "-") == 0)
return -1;
suboptind = optind;
subopt = 1;
optind++;
if (strcmp(curopt, "--") == 0)
return -1;
}
cursubopt = subopt++;
if ((p = strchr(optstring, curopt[cursubopt])) == NULL) {
optopt = curopt[cursubopt];
if (opterr)
fprintf(stderr, "%s: illegal option -- %c\n", argv[0], optopt);
return '?';
}
if (p[1] == ':') {
if (curopt[cursubopt+1] != '\0') {
optarg = curopt+cursubopt+1;
suboptind++;
return p[0];
}
if (argv[optind] == NULL) {
optopt = p[0];
if (opterr)
fprintf(stderr, "%s: option requires an argument -- %c\n", argv[0], optopt);
if (*optstring == ':')
return ':';
return '?';
}
optarg = argv[optind++];
}
return p[0];
}