diff options
Diffstat (limited to 'flx/utils.c')
| -rw-r--r-- | flx/utils.c | 58 |
1 files changed, 53 insertions, 5 deletions
diff --git a/flx/utils.c b/flx/utils.c index 96a52ae..79af51c 100644 --- a/flx/utils.c +++ b/flx/utils.c @@ -5,9 +5,12 @@ #include <sys/types.h> #include <fcntl.h> #include <stdarg.h> +#include <ctype.h> #include "utils.h" +static char bigbuffer[BUFFLEN]; + POOL_INIT(p2void); // fonction to return write in 'ls -l' format @@ -118,17 +121,62 @@ char *backslashed_strmchr(char *s, char *mc) { /* return the string with characters 'toback' backslashed */ char *backslashed_str(char *s, char *toback) { - static char buff[BUFFLEN]; - char *pbuff = buff; + char *pbuff = bigbuffer; + int len = 0; - while (*s) { + while (*s && len < (BUFFLEN-1)) { if (strchr(toback, *s)) { *pbuff++ = '\\'; } *pbuff++ = *s++; } - *pbuff = 0; - return (buff); + bigbuffer[len] = 0; + return (bigbuffer); +} + +/* escape unprintable char with its hexadecimal value (url encode form) */ +char *escape_str(char *s) { + char *pbuff = bigbuffer; + int len = 0; + + while (*s && len < (BUFFLEN-4)) { + if (flx_is_graph(*s)) { + *pbuff++ = *s++; + len++; + } + else { + *pbuff++ = '%'; + *pbuff++ = DEC2HEX(*s/16); + *pbuff++ = DEC2HEX(*s%16); + s++; + len += 3; + } + } + bigbuffer[len] = 0; + return (bigbuffer); +} + +/* unescape string from %xx string form */ +char *unescape_str(char *s) { + char *pbuff = bigbuffer; + int len = 0; + + while (*s && len < (BUFFLEN-1)) { + if (*s == '\\') { + s++; + *pbuff++ = *s++; + } + else if (*s == '%' && isxdigit(*(s+1)) && isxdigit(*(s+2))) { + *pbuff++ = HEX2DEC(s[1])*16+HEX2DEC(s[2]); + s += 3; + } + else { + *pbuff++ = *s++; + } + len++; + } + bigbuffer[len] = 0; + return (bigbuffer); } void *push_str_sorted(void *ptr, char *str) { |