diff options
| -rw-r--r-- | cmd/nvedit.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/cmd/nvedit.c b/cmd/nvedit.c index a690d743cd..4cb25b8248 100644 --- a/cmd/nvedit.c +++ b/cmd/nvedit.c @@ -650,12 +650,14 @@ char *env_get(const char *name) */ int env_get_f(const char *name, char *buf, unsigned len) { - int i, nxt; + int i, nxt, c; for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { int val, n; - for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) { + for (nxt = i; (c = env_get_char(nxt)) != '\0'; ++nxt) { + if (c < 0) + return c; if (nxt >= CONFIG_ENV_SIZE) return -1; } @@ -666,7 +668,10 @@ int env_get_f(const char *name, char *buf, unsigned len) /* found; copy out */ for (n = 0; n < len; ++n, ++buf) { - *buf = env_get_char(val++); + c = env_get_char(val++); + if (c < 0) + return c; + *buf = c; if (*buf == '\0') return n; } |