diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-02-17 22:13:35 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-02-17 22:13:35 +0100 |
| commit | 03feba8cc1a68da8882bfc90d182365308a00743 (patch) | |
| tree | 7abec9fa0987ffd70ae30dffb7496d34d1d32241 /sys/src/cmd/5l/obj.c | |
| parent | fdeea811b7f309e1bd542a0a23fd382e332b2c2e (diff) | |
[125678kqv][cl]: fix sprint() and strcpy() buffer overflows
Diffstat (limited to 'sys/src/cmd/5l/obj.c')
| -rw-r--r-- | sys/src/cmd/5l/obj.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/sys/src/cmd/5l/obj.c b/sys/src/cmd/5l/obj.c index f7096a1d7..218579230 100644 --- a/sys/src/cmd/5l/obj.c +++ b/sys/src/cmd/5l/obj.c @@ -335,11 +335,9 @@ objfile(char *file) if(file[0] == '-' && file[1] == 'l') { if(debug['9']) - sprint(name, "/%s/lib/lib", thestring); + snprint(name, sizeof name, "/%s/lib/lib%s.a", thestring, file+2); else - sprint(name, "/usr/%clib/lib", thechar); - strcat(name, file+2); - strcat(name, ".a"); + snprint(name, sizeof name, "/usr/%clib/lib%s.a", thechar, file+2); file = name; } if(debug['v']) @@ -399,7 +397,7 @@ objfile(char *file) s = lookup(e+5, 0); if(s->type != SXREF) continue; - sprint(pname, "%s(%s)", file, s->name); + snprint(pname, sizeof pname, "%s(%s)", file, s->name); if(debug['v']) Bprint(&bso, "%5.2f library: %s\n", cputime(), pname); Bflush(&bso); @@ -550,17 +548,17 @@ addlib(char *obj) return; if(histfrog[0]->name[1] == '/') { - sprint(name, ""); + name[0] = 0; i = 1; } else if(histfrog[0]->name[1] == '.') { - sprint(name, "."); + snprint(name, sizeof name, "."); i = 0; } else { if(debug['9']) - sprint(name, "/%s/lib", thestring); + snprint(name, sizeof name, "/%s/lib", thestring); else - sprint(name, "/usr/%clib", thechar); + snprint(name, sizeof name, "/usr/%clib", thechar); i = 0; } @@ -1009,7 +1007,7 @@ loop: if(p->from.type == D_FCONST && chipfloat(p->from.ieee) < 0) { /* size sb 9 max */ - sprint(literal, "$%lux", ieeedtof(p->from.ieee)); + snprint(literal, sizeof literal, "$%lux", ieeedtof(p->from.ieee)); s = lookup(literal, 0); if(s->type == 0) { s->type = SBSS; @@ -1038,7 +1036,7 @@ loop: if(p->from.type == D_FCONST && chipfloat(p->from.ieee) < 0) { /* size sb 18 max */ - sprint(literal, "$%lux.%lux", + snprint(literal, sizeof literal, "$%lux.%lux", p->from.ieee->l, p->from.ieee->h); s = lookup(literal, 0); if(s->type == 0) { |