You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
1.2 KiB
62 lines
1.2 KiB
#include "../git-compat-util.h" |
|
|
|
/* |
|
* The size parameter specifies the available space, i.e. includes |
|
* the trailing NUL byte; but Windows's vsnprintf expects the |
|
* number of characters to write, and does not necessarily write the |
|
* trailing NUL. |
|
*/ |
|
#ifndef SNPRINTF_SIZE_CORR |
|
#if defined(__MINGW32__) && defined(__GNUC__) && __GNUC__ < 4 |
|
#define SNPRINTF_SIZE_CORR 1 |
|
#else |
|
#define SNPRINTF_SIZE_CORR 0 |
|
#endif |
|
#endif |
|
|
|
#undef vsnprintf |
|
int git_vsnprintf(char *str, size_t maxsize, const char *format, va_list ap) |
|
{ |
|
char *s; |
|
int ret = -1; |
|
|
|
if (maxsize > 0) { |
|
ret = vsnprintf(str, maxsize-SNPRINTF_SIZE_CORR, format, ap); |
|
if (ret == maxsize-1) |
|
ret = -1; |
|
/* Windows does not NUL-terminate if result fills buffer */ |
|
str[maxsize-1] = 0; |
|
} |
|
if (ret != -1) |
|
return ret; |
|
|
|
s = NULL; |
|
if (maxsize < 128) |
|
maxsize = 128; |
|
|
|
while (ret == -1) { |
|
maxsize *= 4; |
|
str = realloc(s, maxsize); |
|
if (! str) |
|
break; |
|
s = str; |
|
ret = vsnprintf(str, maxsize-SNPRINTF_SIZE_CORR, format, ap); |
|
if (ret == maxsize-1) |
|
ret = -1; |
|
} |
|
free(s); |
|
return ret; |
|
} |
|
|
|
int git_snprintf(char *str, size_t maxsize, const char *format, ...) |
|
{ |
|
va_list ap; |
|
int ret; |
|
|
|
va_start(ap, format); |
|
ret = git_vsnprintf(str, maxsize, format, ap); |
|
va_end(ap); |
|
|
|
return ret; |
|
} |
|
|
|
|