diff options
| -rw-r--r-- | util.c | 42 |
1 files changed, 30 insertions, 12 deletions
@@ -192,11 +192,17 @@ void fatal_error(char *format, ...) va_start(args, format); if (!headless) { //take a guess at the final size - size_t size = strlen(format) * 2; + int32_t size = strlen(format) * 2; char *buf = malloc(size); - size_t actual = vsnprintf(buf, size, format, args); - if (actual >= size) { - actual++; + int32_t actual = vsnprintf(buf, size, format, args); + if (actual >= size || actual < 0) { + if (actual < 0) { + //seems on windows, vsnprintf is returning -1 when the buffer is too small + //since we don't know the proper size, a generous multiplier will hopefully suffice + actual = size * 4; + } else { + actual++; + } free(buf); buf = malloc(actual); va_end(args); @@ -222,11 +228,17 @@ void warning(char *format, ...) warning_printf(format, args); } else { #endif - size_t size = strlen(format) * 2; + int32_t size = strlen(format) * 2; char *buf = malloc(size); - size_t actual = vsnprintf(buf, size, format, args); - if (actual >= size) { - actual++; + int32_t actual = vsnprintf(buf, size, format, args); + if (actual >= size || actual < 0) { + if (actual < 0) { + //seems on windows, vsnprintf is returning -1 when the buffer is too small + //since we don't know the proper size, a generous multiplier will hopefully suffice + actual = size * 4; + } else { + actual++; + } free(buf); buf = malloc(actual); va_end(args); @@ -251,11 +263,17 @@ void info_message(char *format, ...) info_printf(format, args); } else { #endif - size_t size = strlen(format) * 2; + int32_t size = strlen(format) * 2; char *buf = malloc(size); - size_t actual = vsnprintf(buf, size, format, args); - if (actual >= size) { - actual++; + int32_t actual = vsnprintf(buf, size, format, args); + if (actual >= size || actual < 0) { + if (actual < 0) { + //seems on windows, vsnprintf is returning -1 when the buffer is too small + //since we don't know the proper size, a generous multiplier will hopefully suffice + actual = size * 4; + } else { + actual++; + } free(buf); buf = malloc(actual); va_end(args); |