vasilito
b9874d0941
Add redbear-usb-storage-check in-guest binary that validates USB mass storage read and write I/O: discovers /scheme/disk/ devices, writes a test pattern to sector 2048, reads it back, verifies match, restores original content. Updates test-usb-storage-qemu.sh with write-proof verification step. Includes all accumulated Red Bear OS work: kernel patches, relibc patches, driver infrastructure, DRM/GPU, KDE recipes, firmware, validation tooling, build system hardening, and documentation.
43 lines
922 B
C
43 lines
922 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <grp.h>
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void test_getgrgid(gid_t gid) {
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struct group *out = getgrgid(gid);
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if (out == NULL) {
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printf("Did not find a group %d\n", gid);
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return;
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}
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printf("getgrgid\n");
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printf(" %d = %s, GID: %d\n", gid, out->gr_name, out->gr_gid);
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}
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void test_getgrgid_r(gid_t gid) {
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char buf[100];
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struct group grp;
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struct group *tmp;
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int status = getgrgid_r(gid, &grp, buf, sizeof(buf), &tmp);
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if (tmp == NULL) {
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const char *reason = status != 0 ? strerror(status) : "(not found)";
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printf("Did not find a group %d: %s\n", gid, reason);
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return;
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}
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printf("getgrgid_r\n");
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printf(" %d = %s, GID: %d\n", gid, grp.gr_name, grp.gr_gid);
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}
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int main(void) {
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test_getgrgid(1050);
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test_getgrgid_r(1050);
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}
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