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-rw-r--r--src/driver/slbt_version_info.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/src/driver/slbt_version_info.c b/src/driver/slbt_version_info.c
new file mode 100644
index 0000000..5b28075
--- /dev/null
+++ b/src/driver/slbt_version_info.c
@@ -0,0 +1,73 @@
+/*******************************************************************/
+/* slibtool: a skinny libtool implementation, written in C */
+/* Copyright (C) 2016--2021 SysDeer Technologies, LLC */
+/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <slibtool/slibtool.h>
+#include "slibtool_version.h"
+#include "slibtool_driver_impl.h"
+#include "slibtool_errinfo_impl.h"
+#include "argv/argv.h"
+
+
+int slbt_init_version_info(
+ struct slbt_driver_ctx_impl * ictx,
+ struct slbt_version_info * verinfo)
+{
+ int current;
+ int revision;
+ int age;
+ int colons;
+ int fmtcnt;
+ const char * ch;
+
+ if (!verinfo->verinfo && !verinfo->vernumber)
+ return 0;
+
+ if (verinfo->vernumber) {
+ sscanf(verinfo->vernumber,"%d:%d:%d",
+ &verinfo->major,
+ &verinfo->minor,
+ &verinfo->revision);
+ return 0;
+ }
+
+ current = revision = age = 0;
+
+ for (colons=0, ch=verinfo->verinfo; *ch; ch++)
+ if (*ch == ':')
+ colons++;
+
+ fmtcnt = sscanf(verinfo->verinfo,"%d:%d:%d",
+ &current,&revision,&age);
+
+ if (!fmtcnt || (fmtcnt > 3) || (fmtcnt != colons + 1)) {
+ slbt_dprintf(ictx->fdctx.fderr,
+ "%s: error: invalid version info: "
+ "supported argument format is %%d[:%%d[:%%d]].\n",
+ slbt_program_name(ictx->cctx.targv[0]));
+ return -1;
+ }
+
+ if (current < age) {
+ if (ictx->cctx.drvflags & SLBT_DRIVER_VERBOSITY_ERRORS)
+ slbt_dprintf(ictx->fdctx.fderr,
+ "%s: error: invalid version info: "
+ "<current> may not be smaller than <age>.\n",
+ slbt_program_name(ictx->cctx.targv[0]));
+ return -1;
+ }
+
+ verinfo->major = current - age;
+ verinfo->minor = age;
+ verinfo->revision = revision;
+
+ return 0;
+}