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| author | midipix <writeonce@midipix.org> | 2023-11-12 00:32:21 +0000 |
|---|---|---|
| committer | midipix <writeonce@midipix.org> | 2023-11-12 00:32:21 +0000 |
| commit | 5e729b21c0a1e14bf64f00cdfcdcfb7cdaff5219 (patch) | |
| tree | e3a81592638d446ecb58034cde81cc30e3d4db56 | |
| parent | 8e4ae6eed6cb86138a7726cc450091cec81c5fd4 (diff) | |
| download | slibtool-5e729b21c0a1e14bf64f00cdfcdcfb7cdaff5219.tar.bz2 slibtool-5e729b21c0a1e14bf64f00cdfcdcfb7cdaff5219.tar.xz | |
driver: -version-info suport: strictly verify the version info argument.
| -rw-r--r-- | src/driver/slbt_driver_ctx.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/driver/slbt_driver_ctx.c b/src/driver/slbt_driver_ctx.c index fe5f19e..e4f18eb 100644 --- a/src/driver/slbt_driver_ctx.c +++ b/src/driver/slbt_driver_ctx.c @@ -1216,6 +1216,9 @@ static int slbt_init_version_info( int current; int revision; int age; + int colons; + int fmtcnt; + const char * ch; if (!verinfo->verinfo && !verinfo->vernumber) return 0; @@ -1230,9 +1233,21 @@ static int slbt_init_version_info( current = revision = age = 0; - sscanf(verinfo->verinfo,"%d:%d:%d", + for (colons=0, ch=verinfo->verinfo; *ch; ch++) + if (*ch == ':') + colons++; + + fmtcnt = sscanf(verinfo->verinfo,"%d:%d:%d", ¤t,&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", + argv_program_name(ictx->cctx.targv[0])); + return -1; + } + if (current < age) { if (ictx->cctx.drvflags & SLBT_DRIVER_VERBOSITY_ERRORS) slbt_dprintf(ictx->fdctx.fderr, |