diff options
Diffstat (limited to 'qprintf.c')
| -rw-r--r-- | qprintf.c | 30 |
1 files changed, 16 insertions, 14 deletions
@@ -1,4 +1,4 @@ -/* $Id: qprintf.c,v 1.3 2004/04/12 11:12:26 reinelt Exp $ +/* $Id: qprintf.c,v 1.4 2004/06/20 10:09:56 reinelt Exp $ * * simple but quick snprintf() replacement * @@ -26,6 +26,10 @@ * * * $Log: qprintf.c,v $ + * Revision 1.4 2004/06/20 10:09:56 reinelt + * + * 'const'ified the whole source + * * Revision 1.3 2004/04/12 11:12:26 reinelt * added plugin_isdn, removed old ISDN client * fixed some real bad bugs in the evaluator @@ -55,11 +59,11 @@ #include <stdarg.h> #include <string.h> -static char *itoa(char* buffer, size_t size, int value) +static char *itoa(char* buffer, const size_t size, int value) { char *p; int sign; - + // sanity checks if (buffer==NULL || size<2) return (NULL); @@ -88,7 +92,7 @@ static char *itoa(char* buffer, size_t size, int value) } -static char *utoa(char* buffer, size_t size, unsigned int value) +static char *utoa(char* buffer, const size_t size, unsigned int value) { char *p; @@ -110,7 +114,7 @@ static char *utoa(char* buffer, size_t size, unsigned int value) } -static char *utox(char* buffer, size_t size, unsigned int value) +static char *utox(char* buffer, const size_t size, unsigned int value) { char *p; int digit; @@ -134,7 +138,7 @@ static char *utox(char* buffer, size_t size, unsigned int value) } -int qprintf(char *str, size_t size, const char *format, ...) { +int qprintf(char *str, const size_t size, const char *format, ...) { va_list ap; const char *src; @@ -145,12 +149,10 @@ int qprintf(char *str, size_t size, const char *format, ...) { dst = str; len = 0; - // leave room for terminating zero - size--; - va_start(ap, format); - while (len < size) { + // use size-1 for terminating zero + while (len < size-1) { if (*src=='%') { char buf[12], *s; @@ -160,7 +162,7 @@ int qprintf(char *str, size_t size, const char *format, ...) { case 's': src++; s = va_arg(ap, char *); - while (len < size && *s != '\0') { + while (len < size-1 && *s != '\0') { len++; *dst++ = *s++; } @@ -178,7 +180,7 @@ int qprintf(char *str, size_t size, const char *format, ...) { src++; u = va_arg(ap, unsigned int); s = utoa (buf, sizeof(buf), u); - while (len < size && *s != '\0') { + while (len < size-1 && *s != '\0') { len++; *dst++ = *s++; } @@ -187,7 +189,7 @@ int qprintf(char *str, size_t size, const char *format, ...) { src++; u = va_arg(ap, unsigned int); s = utox (buf, sizeof(buf), u); - while (len < size && *s != '\0') { + while (len < size-1 && *s != '\0') { len++; *dst++ = *s++; } @@ -206,7 +208,7 @@ int qprintf(char *str, size_t size, const char *format, ...) { va_end(ap); // enforce terminating zero - if (len>=size && *(dst-1)!='\0') { + if (len>=size-1 && *(dst-1)!='\0') { len++; *dst='\0'; } |