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Code Issues Releases Wiki Activity

util: Introduce get_program_version function.

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Useful in an upcoming commit.
This commit is contained in:
Justin Pettit
2011-08-02 12:16:44 -07:00
parent f180c2e2cc
commit 55d5bb44cb
15 changed files with 46 additions and 25 deletions
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35
lib/util.c
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@@ -33,6 +33,7 @@ VLOG_DEFINE_THIS_MODULE(util);
COVERAGE_DEFINE(util_xalloc);
const char *program_name;
static char *program_version;
void
out_of_memory(void)
@@ -277,21 +278,41 @@ ovs_retval_to_string(int retval)
return unknown;
}
/* Sets program_name based on 'argv0'. Should be called at the beginning of
* main(), as "set_program_name(argv[0]);". */
void set_program_name(const char *argv0)
/* Sets global "program_name" and "program_version" variables. Should
* be called at the beginning of main() with "argv[0]" as the argument
* to 'argv0'.
*
* The 'date' and 'time' arguments should likely be called with
* "__DATE__" and "__TIME__" to use the time the binary was built.
* Alternatively, the "set_program_name" macro may be called to do this
* automatically.
*/
void
set_program_name__(const char *argv0, const char *date, const char *time)
{
const char *slash = strrchr(argv0, '/');
program_name = slash ? slash + 1 : argv0;
free(program_version);
program_version = xasprintf("%s (Open vSwitch) "VERSION BUILDNR"\n"
"Compiled %s %s\n",
program_name, date, time);
}
/* Returns a pointer to a string describing the program version. The
* caller must not modify or free the returned string.
*/
const char *
get_program_version()
{
return program_version;
}
/* Print the version information for the program. */
void
ovs_print_version(char *date, char *time,
uint8_t min_ofp, uint8_t max_ofp)
ovs_print_version(uint8_t min_ofp, uint8_t max_ofp)
{
printf("%s (Open vSwitch) "VERSION BUILDNR"\n", program_name);
printf("Compiled %s %s\n", date, time);
printf("%s", program_version);
if (min_ofp || max_ofp) {
printf("OpenFlow versions %#x:%#x\n", min_ofp, max_ofp);
}