From: Simon Glass sjg@chromium.org
Use this new data structure in the utility function.
Signed-off-by: Simon Glass sjg@chromium.org Signed-off-by: Sughosh Ganu sughosh.ganu@linaro.org --- lib/strto.c | 35 +++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 16 deletions(-)
diff --git a/lib/strto.c b/lib/strto.c index f83ac67c66..f059408755 100644 --- a/lib/strto.c +++ b/lib/strto.c @@ -9,6 +9,7 @@ * Wirzenius wrote this portably, Torvalds fucked it up :-) */
+#include <alist.h> #include <errno.h> #include <malloc.h> #include <vsprintf.h> @@ -226,37 +227,39 @@ void str_to_upper(const char *in, char *out, size_t len)
const char **str_to_list(const char *instr) { - const char **ptr; - char *str, *p; - int count, i; + struct alist alist; + char *str, *p, *start;
/* don't allocate if the string is empty */ str = *instr ? strdup(instr) : (char *)instr; if (!str) return NULL;
- /* count the number of space-separated strings */ - for (count = 0, p = str; *p; p++) { + alist_init_struct(&alist, char *); + + if (*str) + alist_add(&alist, &str, char *); + for (start = str, p = str; *p; p++) { if (*p == ' ') { - count++; *p = '\0'; + start = p + 1; + if (*start) + alist_add(&alist, &start, char *); } } - if (p != str && p[-1]) - count++;
- /* allocate the pointer array, allowing for a NULL terminator */ - ptr = calloc(count + 1, sizeof(char *)); - if (!ptr) { - if (*str) + /* terminate list */ + p = NULL; + alist_add(&alist, &p, char *); + if (alist_err(&alist)) { + alist_uninit(&alist); + + if (*instr) free(str); return NULL; }
- for (i = 0, p = str; i < count; p += strlen(p) + 1, i++) - ptr[i] = p; - - return ptr; + return alist_uninit_move(&alist, NULL, const char *); }
void str_free_list(const char **ptr)