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-rw-r--r--util/libreboot-utils/Makefile2
-rw-r--r--util/libreboot-utils/include/common.h15
-rw-r--r--util/libreboot-utils/lib/command.c15
-rw-r--r--util/libreboot-utils/lib/file.c14
-rw-r--r--util/libreboot-utils/lib/io.c4
-rw-r--r--util/libreboot-utils/lib/mkhtemp.c37
-rw-r--r--util/libreboot-utils/lib/state.c13
-rw-r--r--util/libreboot-utils/lib/string.c382
-rw-r--r--util/libreboot-utils/lottery.c6
-rw-r--r--util/libreboot-utils/mkhtemp.c19
10 files changed, 347 insertions, 160 deletions
diff --git a/util/libreboot-utils/Makefile b/util/libreboot-utils/Makefile
index 5ebc9b93..07b3a727 100644
--- a/util/libreboot-utils/Makefile
+++ b/util/libreboot-utils/Makefile
@@ -68,8 +68,6 @@ $(PROG): $(OBJS_NVMUTIL)
$(PROGMKH): $(OBJS_MKHTEMP)
$(CC_MODE) $(OBJS_MKHTEMP) -o $(PROGMKH) $(LDFLAGS)
- cp -r mkhtemp mktemp
- chmod 755 mktemp
$(PROGLOT): $(OBJS_LOTTERY)
$(CC_MODE) $(OBJS_LOTTERY) -o $(PROGLOT) $(LDFLAGS)
diff --git a/util/libreboot-utils/include/common.h b/util/libreboot-utils/include/common.h
index 0ccc02aa..8276d6da 100644
--- a/util/libreboot-utils/include/common.h
+++ b/util/libreboot-utils/include/common.h
@@ -372,21 +372,26 @@ void write_mac_part(size_t partnum);
/* string functions
*/
+size_t page_remain(const void *p);
+long pagesize(void);
int xunveilx(const char *path, const char *permissions);
int xpledgex(const char *promises, const char *execpromises);
char *smalloc(char **buf, size_t size);
void *vmalloc(void **buf, size_t size);
-int slen(const char *scmp, size_t maxlen,
+size_t slen(const char *scmp, size_t maxlen,
size_t *rval);
+int vcmp(const void *s1, const void *s2, size_t n);
int scmp(const char *a, const char *b,
size_t maxlen, int *rval);
-int sdup(const char *s,
+int ccmp(const char *a, const char *b, size_t i,
+ int *rval);
+char *sdup(const char *s,
size_t n, char **dest);
-int scatn(ssize_t sc, const char **sv,
+char *scatn(ssize_t sc, const char **sv,
size_t max, char **rval);
-int scat(const char *s1, const char *s2,
+char *scat(const char *s1, const char *s2,
size_t n, char **dest);
-int dcat(const char *s, size_t n,
+void dcat(const char *s, size_t n,
size_t off, char **dest1,
char **dest2);
/* numerical functions
diff --git a/util/libreboot-utils/lib/command.c b/util/libreboot-utils/lib/command.c
index a1e46e5f..3ee75628 100644
--- a/util/libreboot-utils/lib/command.c
+++ b/util/libreboot-utils/lib/command.c
@@ -57,10 +57,7 @@ sanitize_command_index(size_t c)
err_exit(EINVAL, "cmd index %lu: empty str",
(size_t)c);
- if (slen(cmd->str, MAX_CMD_LEN +1, &rval) < 0)
- err_exit(errno, "Could not get command length");
-
- if (rval > MAX_CMD_LEN) {
+ if (slen(cmd->str, MAX_CMD_LEN +1, &rval) > MAX_CMD_LEN) {
err_exit(EINVAL, "cmd index %lu: str too long: %s",
(size_t)c, cmd->str);
}
@@ -109,10 +106,7 @@ set_cmd(int argc, char *argv[])
cmd = x->cmd[c].str;
- if (scmp(argv[2], cmd, MAX_CMD_LEN, &rval) < 0)
- err_exit(EINVAL,
- "could not compare command strings");
- if (rval != 0)
+ if (scmp(argv[2], cmd, MAX_CMD_LEN, &rval))
continue; /* not the right command */
/* valid command found */
@@ -239,10 +233,7 @@ parse_mac_string(void)
size_t rval;
- if (slen(x->mac.str, 18, &rval) < 0)
- err_exit(EINVAL, "Could not determine MAC length");
-
- if (rval != 17)
+ if (slen(x->mac.str, 18, &rval) != 17)
err_exit(EINVAL, "MAC address is the wrong length");
memset(mac->mac_buf, 0, sizeof(mac->mac_buf));
diff --git a/util/libreboot-utils/lib/file.c b/util/libreboot-utils/lib/file.c
index f35d9749..b9d31ad7 100644
--- a/util/libreboot-utils/lib/file.c
+++ b/util/libreboot-utils/lib/file.c
@@ -88,10 +88,7 @@ fsync_dir(const char *path)
maxlen = 4096;
#endif
- if (if_err(path == NULL, EFAULT) ||
- if_err_sys(slen(path, maxlen, &pathlen) < 0) ||
- if_err(pathlen >= maxlen || pathlen < 0, EMSGSIZE) ||
- if_err(pathlen == 0, EINVAL))
+ if (if_err(slen(path, maxlen, &pathlen) == 0, EINVAL))
goto err_fsync_dir;
memcpy(smalloc(&dirbuf, pathlen + 1),
@@ -841,11 +838,12 @@ fs_dirname_basename(const char *path,
size_t maxlen = 4096;
#endif
- if (path == NULL || dir == NULL || base == NULL ||
- if_err_sys(slen(path, maxlen, &len) < 0))
+ if (if_err(path == NULL || dir == NULL || base == NULL, EFAULT))
return -1;
- memcpy(smalloc(&buf, len + 1), path, len + 1);
+ slen(path, maxlen, &len);
+ memcpy(smalloc(&buf, len + 1),
+ path, len + 1);
/* strip trailing slashes */
while (len > 1 && buf[len - 1] == '/')
@@ -865,7 +863,7 @@ fs_dirname_basename(const char *path,
}
} else if (allow_relative) {
- *dir = strdup(".");
+ sdup(".", maxlen, dir);
*base = buf;
} else {
errno = EINVAL;
diff --git a/util/libreboot-utils/lib/io.c b/util/libreboot-utils/lib/io.c
index eac6073e..4938cdc8 100644
--- a/util/libreboot-utils/lib/io.c
+++ b/util/libreboot-utils/lib/io.c
@@ -143,7 +143,7 @@ read_file(void)
if (_r < 0)
err_exit(errno, "%s: read failed (cmp)", f->tname);
- if (memcmp(f->buf, f->bufcmp, f->gbe_file_size) != 0)
+ if (vcmp(f->buf, f->bufcmp, f->gbe_file_size) != 0)
err_exit(errno, "%s: %s: read contents differ (pre-test)",
f->fname, f->tname);
}
@@ -329,7 +329,7 @@ check_written_part(size_t p)
f->rw_check_err_read[p] = f->io_err_gbe = 1;
else if ((size_t)rval != gbe_rw_size)
f->rw_check_partial_read[p] = f->io_err_gbe = 1;
- else if (memcmp(mem_offset, f->pad, gbe_rw_size) != 0)
+ else if (vcmp(mem_offset, f->pad, gbe_rw_size) != 0)
f->rw_check_bad_part[p] = f->io_err_gbe = 1;
if (f->rw_check_err_read[p] ||
diff --git a/util/libreboot-utils/lib/mkhtemp.c b/util/libreboot-utils/lib/mkhtemp.c
index bba8a7ca..0560da47 100644
--- a/util/libreboot-utils/lib/mkhtemp.c
+++ b/util/libreboot-utils/lib/mkhtemp.c
@@ -120,8 +120,6 @@ new_tmp_common(int *fd, char **path, int type,
if (tmpdir == NULL)
goto err;
- if (slen(tmpdir, maxlen, &dirlen) < 0)
- goto err;
if (*tmpdir == '\0')
goto err;
if (*tmpdir != '/')
@@ -132,15 +130,12 @@ new_tmp_common(int *fd, char **path, int type,
else
templatestr = "tmp.XXXXXXXXXX";
- if (slen(templatestr, maxlen, &templatestr_len) < 0)
- goto err;
-
/* may as well calculate in advance */
- destlen = dirlen + 1 + templatestr_len;
+ destlen = slen(tmpdir, maxlen, &dirlen) + 1
+ + slen(templatestr, maxlen, &templatestr_len);
/* full path: */
- if (scatn(3, (const char *[]) { tmpdir, "/", templatestr },
- maxlen, &dest) < 0)
- goto err;
+ dest = scatn(3, (const char *[]) { tmpdir, "/", templatestr },
+ maxlen, &dest);
fname = dest + dirlen + 1;
@@ -312,12 +307,10 @@ same_dir(const char *a, const char *b)
/* optimisation: if both dirs
are the same, we don't need
- to check anything. sehr schnell:
+ to check anything. sehr schnell!
*/
- if (scmp(a, b, maxlen, &rval_scmp) < 0)
- goto err_same_dir;
/* bonus: scmp checks null for us */
- if (rval_scmp == 0)
+ if (!scmp(a, b, maxlen, &rval_scmp))
goto success_same_dir;
fd_a = fs_open(a, O_RDONLY | O_DIRECTORY | O_NOFOLLOW);
@@ -550,24 +543,22 @@ mkhtemp(int *fd,
if (if_err(fd == NULL || template == NULL || fname == NULL ||
st_dir_initial == NULL, EFAULT) ||
if_err(*fd >= 0, EEXIST) ||
- if_err(dirfd < 0, EBADF)
- ||
- if_err_sys(slen(template, max_len, &template_len) < 0) ||
- if_err(template_len >= max_len, EMSGSIZE)
- ||
- if_err_sys(slen(fname, max_len, &fname_len) < 0) ||
- if_err(fname == NULL, EINVAL) ||
- if_err(strrchr(fname, '/') != NULL, EINVAL))
+ if_err(dirfd < 0, EBADF))
return -1;
- for (end = template + template_len; /* count X */
+ /* count X */
+ for (end = template + slen(template, max_len, &template_len);
end > template && *--end == 'X'; xc++);
+ fname_len = slen(fname, max_len, &fname_len);
+ if (if_err(strrchr(fname, '/') != NULL, EINVAL))
+ return -1;
+
if (if_err(xc < 3 || xc > template_len, EINVAL) ||
if_err(fname_len > template_len, EOVERFLOW))
return -1;
- if (if_err(memcmp(fname, template + template_len - fname_len,
+ if (if_err(vcmp(fname, template + template_len - fname_len,
fname_len) != 0, EINVAL))
return -1;
diff --git a/util/libreboot-utils/lib/state.c b/util/libreboot-utils/lib/state.c
index bcf2ccbc..f0be5656 100644
--- a/util/libreboot-utils/lib/state.c
+++ b/util/libreboot-utils/lib/state.c
@@ -22,6 +22,12 @@
struct xstate *
xstart(int argc, char *argv[])
{
+#if defined(PATH_LEN) && \
+ ((PATH_LEN) >= 256)
+ static size_t maxlen = PATH_LEN;
+#else
+ static size_t maxlen = 4096;
+#endif
static int first_run = 1;
static char *dir = NULL;
static char *base = NULL;
@@ -113,8 +119,7 @@ xstart(int argc, char *argv[])
err_exit(errno, "xstart: don't know CWD of %s",
us.f.fname);
- if ((us.f.base = strdup(base)) == NULL)
- err_exit(errno, "strdup base");
+ sdup(base, maxlen, &us.f.base);
us.f.dirfd = fs_open(dir,
O_RDONLY | O_DIRECTORY);
@@ -128,9 +133,7 @@ xstart(int argc, char *argv[])
&tmpdir, &tmpbase_local, 0) < 0)
err_exit(errno, "tmp basename");
- us.f.tmpbase = strdup(tmpbase_local);
- if (us.f.tmpbase == NULL)
- err_exit(errno, "strdup tmpbase");
+ sdup(tmpbase_local, maxlen, &us.f.tmpbase);
free_and_set_null(&tmpdir);
diff --git a/util/libreboot-utils/lib/string.c b/util/libreboot-utils/lib/string.c
index 39b31cb0..c083bd6d 100644
--- a/util/libreboot-utils/lib/string.c
+++ b/util/libreboot-utils/lib/string.c
@@ -19,6 +19,47 @@
#include "../include/common.h"
+/* for null detection inside
+ * word-optimised string functions
+ */
+#define ff ((size_t)-1 / 0xFF)
+#define high ((ff) * 0x80)
+/* NOTE:
+ * do not assume that a match means
+ * both words have null at the same
+ * location. see how this is handled
+ * e.g. in scmp.
+ */
+#define zeroes(x) (((x) - (ff)) & ~(x) & (high))
+
+size_t
+page_remain(const void *p)
+{
+ /* calling sysconf repeatedly
+ * is folly. cache it (static)
+ */
+ static size_t pagesz = 0;
+ if (!pagesz)
+ pagesz = (size_t)pagesize();
+
+ return pagesz - ((uintptr_t)p & (pagesz - 1));
+}
+
+long
+pagesize(void)
+{
+ static long rval = 0;
+ static int set = 0;
+
+ if (!set) {
+ if ((rval = sysconf(_SC_PAGESIZE)) < 0)
+ err_exit(errno, "could not determine page size");
+ set = 1;
+ }
+
+ return rval;
+}
+
void
free_and_set_null(char **buf)
{
@@ -78,103 +119,224 @@ vmalloc(void **buf, size_t size)
return *buf = rval;
}
-/* strict strcmp */
+/* strict word-based strcmp */
int
scmp(const char *a,
const char *b,
size_t maxlen,
int *rval)
{
- size_t ch;
- unsigned char ac;
- unsigned char bc;
+ size_t i = 0;
+ size_t j;
+ size_t wa;
+ size_t wb;
+ int saved_errno = errno;
- if (a == NULL ||
- b == NULL ||
- rval == NULL) {
- errno = EFAULT;
+ if (if_err(a == NULL || b == NULL || rval == NULL, EFAULT))
goto err;
+
+ for ( ; ((uintptr_t)(a + i) % sizeof(size_t)) != 0; i++) {
+
+ if (if_err(i >= maxlen, EOVERFLOW))
+ goto err;
+ else if (!ccmp(a, b, i, rval))
+ goto out;
}
- for (ch = 0; ch < maxlen; ch++) {
+ for ( ; i + sizeof(size_t) <= maxlen;
+ i += sizeof(size_t)) {
- ac = (unsigned char)a[ch];
- bc = (unsigned char)b[ch];
+ /* prevent crossing page boundary on word check */
+ if (page_remain(a + i) < sizeof(size_t) ||
+ page_remain(b + i) < sizeof(size_t))
+ break;
- if (ac != bc) {
- *rval = ac - bc;
- return 0;
- }
+ memcpy(&wa, a + i, sizeof(size_t));
+ memcpy(&wb, b + i, sizeof(size_t));
- if (ac == '\0') {
- *rval = 0;
- return 0;
- }
+ if (wa != wb)
+ for (j = 0; j < sizeof(size_t); j++)
+ if (!ccmp(a, b, i + j, rval))
+ goto out;
+
+ if (!zeroes(wa))
+ continue;
+
+ *rval = 0;
+ goto out;
}
+ for ( ; i < maxlen; i++)
+ if (!ccmp(a, b, i, rval))
+ goto out;
+
err:
- errno = EFAULT;
+ (void) set_errno(saved_errno, EFAULT);
if (rval != NULL)
*rval = -1;
+
+ err_exit(errno, "scmp");
return -1;
+out:
+ errno = saved_errno;
+ return *rval;
}
-/* strict strlen */
-int
+int ccmp(const char *a, const char *b,
+ size_t i, int *rval)
+{
+ unsigned char ac;
+ unsigned char bc;
+
+ if (if_err(a == NULL || b == NULL || rval == NULL, EFAULT))
+ err_exit(errno, "ccmp");
+
+ ac = (unsigned char)a[i];
+ bc = (unsigned char)b[i];
+
+ if (ac != bc) {
+ *rval = ac - bc;
+ return 0;
+ } else if (ac == '\0') {
+ *rval = 0;
+ return 0;
+ }
+
+ return 1;
+}
+
+/* strict word-based strlen */
+size_t
slen(const char *s,
size_t maxlen,
size_t *rval)
{
- size_t ch;
+ int saved_errno = errno;
+ size_t i = 0;
+ size_t w;
+ size_t j;
- if (s == NULL ||
- rval == NULL) {
- errno = EFAULT;
+ if (if_err(s == NULL || rval == NULL, EFAULT))
goto err;
+
+ for ( ; ((uintptr_t)(s + i) % sizeof(size_t)) != 0; i++) {
+
+ if (i >= maxlen)
+ goto err;
+ if (s[i] == '\0') {
+ *rval = i;
+ goto out;
+ }
}
- for (ch = 0;
- ch < maxlen && s[ch] != '\0';
- ch++);
+ for ( ; i + sizeof(size_t) <= maxlen;
+ i += sizeof(size_t)) {
- if (ch == maxlen) {
- /* unterminated */
- errno = EFAULT;
- goto err;
+ memcpy(&w, s + i, sizeof(size_t));
+ if (!zeroes(w))
+ continue;
+
+ for (j = 0; j < sizeof(size_t); j++) {
+ if (s[i + j] == '\0') {
+ *rval = i + j;
+ goto out;
+ }
+ }
+ }
+
+ for ( ; i < maxlen; i++) {
+ if (s[i] == '\0') {
+ *rval = i;
+ goto out;
+ }
}
- *rval = ch;
- return 0;
err:
+ (void) set_errno(saved_errno, EFAULT);
if (rval != NULL)
*rval = 0;
- return -1;
+
+ err_exit(errno, "slen"); /* abort */
+ return 0; /* gcc15 is happy */
+out:
+ errno = saved_errno;
+ return *rval;
}
-/* strict strdup */
-int
+/* strict word-based strdup */
+char *
sdup(const char *s,
- size_t n, char **dest)
+ size_t max, char **dest)
{
- size_t size;
- char *rval = NULL;
+ size_t j;
+ size_t w;
+ size_t i = 0;
+ char *out = NULL;
+ int saved_errno = errno;
+
+ if (if_err(dest == NULL || *dest != NULL || s == NULL, EFAULT))
+ goto err;
- if (dest == NULL ||
- slen(s, n, &size) < 0) {
- if (dest != NULL)
- *dest = NULL;
- return -1;
+ out = smalloc(dest, max);
+
+ for ( ; ((uintptr_t)(s + i) % sizeof(size_t)) != 0; i++) {
+
+ if (if_err(i >= max, EOVERFLOW))
+ goto err;
+
+ out[i] = s[i];
+ if (s[i] == '\0') {
+ *dest = out;
+ goto out;
+ }
}
- memcpy(smalloc(&rval, size + 1), s, size);
- *(rval + size) = '\0';
+ for ( ; i + sizeof(size_t) <= max; i += sizeof(size_t)) {
- *dest = rval;
- return 0;
+ if (page_remain(s + i) < sizeof(size_t))
+ break;
+
+ memcpy(&w, s + i, sizeof(size_t));
+ if (!zeroes(w)) {
+ memcpy(out + i, &w, sizeof(size_t));
+ continue;
+ }
+
+ for (j = 0; j < sizeof(size_t); j++) {
+
+ out[i + j] = s[i + j];
+ if (s[i + j] == '\0') {
+ *dest = out;
+ goto out;
+ }
+ }
+ }
+
+ for ( ; i < max; i++) {
+
+ out[i] = s[i];
+ if (s[i] == '\0') {
+ *dest = out;
+ goto out;
+ }
+ }
+
+err:
+ free_and_set_null(&out);
+ if (dest != NULL)
+ *dest = NULL;
+
+ (void) set_errno(saved_errno, EFAULT);
+ err_exit(errno, "sdup");
+
+ return NULL;
+out:
+ errno = saved_errno;
+ return *dest;
}
/* concatenate N number of strings */
-int
+char *
scatn(ssize_t sc, const char **sv,
size_t max, char **rval)
{
@@ -194,61 +356,73 @@ scatn(ssize_t sc, const char **sv,
if (if_err(sv[i] == NULL, EFAULT))
goto err;
else if (i == 0) {
- if (sdup(sv[0], max, &final) < 0)
- goto err;
+ (void) sdup(sv[0], max, &final);
continue;
}
rtmp = NULL;
- if (scat(final, sv[i], max, &rtmp) < 0)
- goto err;
+ scat(final, sv[i], max, &rtmp);
free_and_set_null(&final);
final = rtmp;
rtmp = NULL;
}
+ errno = saved_errno;
*rval = final;
- return 0;
+ return *rval;
err:
free_and_set_null(&rcur);
free_and_set_null(&rtmp);
free_and_set_null(&final);
- return set_errno(saved_errno, EFAULT);
+ (void) set_errno(saved_errno, EFAULT);
+
+ err_exit(errno, "scatn");
+ return NULL;
}
/* strict strcat */
-int
+char *
scat(const char *s1, const char *s2,
size_t n, char **dest)
{
size_t size1;
size_t size2;
char *rval = NULL;
+ int saved_errno = errno;
- if (if_err(dest == NULL || *dest != NULL, EFAULT) ||
- slen(s1, n, &size1) < 0 ||
- slen(s2, n, &size2) < 0 ||
- if_err(size1 > SIZE_MAX - size2 - 1, EOVERFLOW)) {
+ if (if_err(dest == NULL || *dest != NULL, EFAULT))
+ goto err;
- if (dest != NULL)
- *dest = NULL;
- return -1;
- }
+ slen(s1, n, &size1);
+ slen(s2, n, &size2);
- memcpy(smalloc(&rval, size1 + size2 + 1),
- s1, size1);
+ if (if_err(size1
+ > SIZE_MAX - size2 - 1, EOVERFLOW))
+ goto err;
+
+ smalloc(&rval, size1 + size2 + 1);
+
+ memcpy(rval, s1, size1);
memcpy(rval + size1, s2, size2);
*(rval + size1 + size2) = '\0';
*dest = rval;
- return 0;
+ errno = saved_errno;
+ return *dest;
+err:
+ (void) set_errno(saved_errno, EINVAL);
+ if (dest != NULL)
+ *dest = NULL;
+ err_exit(errno, "scat");
+
+ return NULL;
}
/* strict split/de-cat - off is where
2nd buffer will start from */
-int
+void
dcat(const char *s, size_t n,
size_t off, char **dest1,
char **dest2)
@@ -256,14 +430,14 @@ dcat(const char *s, size_t n,
size_t size;
char *rval1 = NULL;
char *rval2 = NULL;
+ int saved_errno = errno;
- if (dest1 == NULL || dest2 == NULL ||
- slen(s, n, &size) < 0 ||
- if_err(size == SIZE_MAX, EOVERFLOW) ||
- if_err(off >= size, EOVERFLOW)) {
+ if (if_err(dest1 == NULL || dest2 == NULL, EFAULT))
+ goto err;
+ if (if_err(slen(s, n, &size) >= SIZE_MAX - 1, EOVERFLOW) ||
+ if_err(off >= size, EOVERFLOW))
goto err;
- }
memcpy(smalloc(&rval1, off + 1),
s, off);
@@ -276,20 +450,55 @@ dcat(const char *s, size_t n,
*dest1 = rval1;
*dest2 = rval2;
- return 0;
+ errno = saved_errno;
+ return;
err:
- if (rval1 != NULL)
- free(rval1);
- if (rval2 != NULL)
- free(rval2);
+ *dest1 = *dest2 = NULL;
- if (dest1 != NULL)
- *dest1 = NULL;
- if (dest2 != NULL)
- *dest2 = NULL;
+ free_and_set_null(&rval1);
+ free_and_set_null(&rval2);
- return -1;
+ (void) set_errno(saved_errno, EINVAL);
+ err_exit(errno, "dcat");
+}
+
+/* because no libc reimagination is complete
+ * without a reimplementation of memcmp. and
+ * no safe one is complete without null checks.
+ */
+int
+vcmp(const void *s1, const void *s2, size_t n)
+{
+ int saved_errno = errno;
+ size_t i = 0;
+ size_t a;
+ size_t b;
+
+ const unsigned char *x;
+ const unsigned char *y;
+
+ if (if_err(s1 == NULL || s2 == NULL, EFAULT))
+ err_exit(EFAULT, "vcmp: null input");
+
+ x = s1;
+ y = s2;
+
+ for ( ; i + sizeof(size_t) <= n; i += sizeof(size_t)) {
+
+ memcpy(&a, x + i, sizeof(size_t));
+ memcpy(&b, y + i, sizeof(size_t));
+
+ if (a != b)
+ break;
+ }
+
+ for ( ; i < n; i++)
+ if (x[i] != y[i])
+ return (int)x[i] - (int)y[i];
+
+ errno = saved_errno;
+ return 0;
}
/* on functions that return with errno,
@@ -390,8 +599,9 @@ lbsetprogname(char *argv0)
static int set = 0;
if (!set) {
- if (argv0 == NULL || sdup(argv0, 4096, &progname) < 0)
+ if (argv0 == NULL)
return "libreboot-utils";
+ (void) sdup(argv0, 4096, &progname);
set = 1;
}
diff --git a/util/libreboot-utils/lottery.c b/util/libreboot-utils/lottery.c
index fd39c68c..7370de1b 100644
--- a/util/libreboot-utils/lottery.c
+++ b/util/libreboot-utils/lottery.c
@@ -18,7 +18,7 @@ main(int argc, char **argv)
{
int same = 0;
char *buf;
- size_t size = 8589934592;
+ size_t size = BUFSIZ;
(void) argc, (void) argv;
(void) errhook(exit_cleanup);
@@ -28,7 +28,7 @@ main(int argc, char **argv)
xpledgex("stdio", NULL);
buf = rmalloc(size);
- if (!memcmp(buf, buf + (size >> 1), size >> 1))
+ if (!vcmp(buf, buf + (size >> 1), size >> 1))
same = 1;
if (argc < 2) /* no spew */
@@ -36,7 +36,7 @@ main(int argc, char **argv)
free_and_set_null(&buf);
fprintf(stderr, "\n%s\n", same ? "You win!" : "You lose!");
- return same ^ 1;
+ return same ? EXIT_SUCCESS : EXIT_FAILURE;
}
static void
diff --git a/util/libreboot-utils/mkhtemp.c b/util/libreboot-utils/mkhtemp.c
index c9315b0c..f4c2b646 100644
--- a/util/libreboot-utils/mkhtemp.c
+++ b/util/libreboot-utils/mkhtemp.c
@@ -68,7 +68,7 @@ main(int argc, char *argv[])
xpledgex("stdio flock rpath wpath cpath", NULL);
while ((c =
- getopt(argc, argv, "qdp:t")) != -1) {
+ getopt(argc, argv, "qdp:")) != -1) {
switch (c) {
case 'd':
@@ -83,12 +83,6 @@ main(int argc, char *argv[])
/* (exit status unchanged) */
break;
- case 't':
- break; /* not supported yet. TODO */
- /* configured above without optarg,
- * so that it is treated as a normal
- * template string */
-
default:
goto err_usage;
}
@@ -101,11 +95,7 @@ main(int argc, char *argv[])
/* custom template e.g. foo.XXXXXXXXXXXXXXXXXXXXX */
if (template != NULL) {
- if (slen(template, maxlen, &tlen) < 0)
- err_exit(EINVAL,
- "invalid template");
-
- for (p = template + tlen;
+ for (p = template + slen(template, maxlen, &tlen);
p > template && *--p == 'X'; xc++);
if (xc < 3) /* the gnu mktemp errs on less than 3 */
@@ -138,8 +128,9 @@ main(int argc, char *argv[])
err_exit(EFAULT, "bad string initialisation");
if (*s == '\0')
err_exit(EFAULT, "empty string initialisation");
- if (slen(s, maxlen, &len) < 0)
- err_exit(EFAULT, "unterminated string initialisiert");
+
+ slen(s, maxlen, &len); /* Nullterminierung prüfen */
+ /* for good measure */
printf("%s\n", s);
generated by cgit v1.2.1 (git 2.18.0) at 2026-03-30 09:39:07 +0000