sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-23 21:41:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

Use common symbols to avoid dragging in getopt.o unless a getopt-using

Browse Source 
command is linked in.
This commit is contained in:
Michael Brown
2006-12-19 16:27:15 +00:00
parent c1bac56f85
commit 70d20c4e7a
3 changed files with 26 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/include/getopt.h
View File

@@ -49,9 +49,9 @@ struct option {
extern char *optarg;
extern int optind;
extern int nextchar;
extern int optopt;
extern void reset_getopt();
extern int getopt_long ( int argc, char * const argv[], const char *optstring,
const struct option *longopts, int *longindex );
@@ -73,4 +73,20 @@ static inline int getopt ( int argc, char * const argv[],
return getopt_long ( argc, argv, optstring, no_options, NULL );
}
/**
* Reset getopt() internal state
*
* Due to a limitation of the POSIX getopt() API, it is necessary to
* add a call to reset_getopt() before each set of calls to getopt()
* or getopt_long(). This arises because POSIX assumes that each
* process will parse command line arguments no more than once; this
* assumption is not valid within Etherboot. We work around the
* limitation by arranging for execv() to call reset_getopt() before
* executing the command.
*/
static inline void reset_getopt ( void ) {
optind = 1;
nextchar = 0;
}
#endif /* _GETOPT_H */