diff options
Diffstat (limited to 'libexec/rtld-elf/rtld.c')
| -rw-r--r-- | libexec/rtld-elf/rtld.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c index d5e702652058..96042f7b5af3 100644 --- a/libexec/rtld-elf/rtld.c +++ b/libexec/rtld-elf/rtld.c @@ -6155,10 +6155,42 @@ parse_args(char* argv[], int argc, bool *use_pathp, int *fdp, *fdp = fd; seen_f = true; break; + } else if (opt == 'o') { + struct ld_env_var_desc *l; + char *n, *v; + u_int ll; + + if (j != arglen - 1) { + _rtld_error("Invalid options: %s", arg); + rtld_die(); + } + i++; + n = argv[i]; + v = strchr(n, '='); + if (v == NULL) { + _rtld_error("No '=' in -o parameter"); + rtld_die(); + } + for (ll = 0; ll < nitems(ld_env_vars); ll++) { + l = &ld_env_vars[ll]; + if (v - n == (ptrdiff_t)strlen(l->n) && + strncmp(n, l->n, v - n) == 0) { + l->val = v + 1; + break; + } + } + if (ll == nitems(ld_env_vars)) { + _rtld_error("Unknown LD_ option %s", + n); + rtld_die(); + } } else if (opt == 'p') { *use_pathp = true; } else if (opt == 'u') { - trust = false; + u_int ll; + + for (ll = 0; ll < nitems(ld_env_vars); ll++) + ld_env_vars[ll].val = NULL; } else if (opt == 'v') { machine[0] = '\0'; mib[0] = CTL_HW; @@ -6238,6 +6270,7 @@ print_usage(const char *argv0) " -b <exe> Execute <exe> instead of <binary>, arg0 is <binary>\n" " -d Ignore lack of exec permissions for the binary\n" " -f <FD> Execute <FD> instead of searching for <binary>\n" + " -o <OPT>=<VAL> Set LD_<OPT> to <VAL>, without polluting env\n" " -p Search in PATH for named binary\n" " -u Ignore LD_ environment variables\n" " -v Display identification information\n" |