diff options
| author | Leah Rowe <leah@libreboot.org> | 2026-03-25 21:23:52 +0000 |
|---|---|---|
| committer | Leah Rowe <leah@libreboot.org> | 2026-03-26 06:59:42 +0000 |
| commit | c66f381e9062f0e75e2731e6b6774c2090933e75 (patch) | |
| tree | c9c5cac20862fa615c9660637355c186129a8e4f /util | |
| parent | 1e79219bea878b092b6a833b30f2f3a86aebbc33 (diff) | |
mkrstr
Signed-off-by: Leah Rowe <leah@libreboot.org>
Diffstat (limited to 'util')
| -rw-r--r-- | util/libreboot-utils/include/common.h | 2 | ||||
| -rw-r--r-- | util/libreboot-utils/lib/rand.c | 25 |
2 files changed, 27 insertions, 0 deletions
diff --git a/util/libreboot-utils/include/common.h b/util/libreboot-utils/include/common.h index c4ee75e0..6d6d8d09 100644 --- a/util/libreboot-utils/include/common.h +++ b/util/libreboot-utils/include/common.h @@ -386,6 +386,8 @@ int dcat(const char *s, size_t n, unsigned short hextonum(char ch_s); void *mkrbuf(size_t n); void rset(void *buf, size_t n); +void *mkrbuf(size_t n); +char *mkrstr(size_t n); /* Helper functions for command: dump */ diff --git a/util/libreboot-utils/lib/rand.c b/util/libreboot-utils/lib/rand.c index e67b7058..d54d4adc 100644 --- a/util/libreboot-utils/lib/rand.c +++ b/util/libreboot-utils/lib/rand.c @@ -29,6 +29,7 @@ #include <unistd.h> #include <stdlib.h> #include <string.h> +#include <stdint.h> #include "../include/common.h" @@ -67,6 +68,30 @@ * or your program dies. */ +char * +mkrstr(size_t n) /* emulates spkmodem-decode */ +{ + char *s; + size_t i; + + if (n == 0) + err_no_cleanup(0, EPERM, "mkrbuf: zero-byte request"); + + if (n == SIZE_MAX) + err_no_cleanup(0, EOVERFLOW, "mkrbuf: overflow"); + + if (if_err((s = mkrbuf(n + 1)) == NULL, EFAULT)) + err_no_cleanup(0, EFAULT, "mkrstr: null"); + + for (i = 0; i < n; i++) + while(*(s + i) == '\0') + rset(s + i, 1); + + *(s + n) = '\0'; + + return s; +} + void * mkrbuf(size_t n) { |