diff options
Diffstat (limited to 'env.c')
| -rw-r--r-- | env.c | 59 |
1 files changed, 24 insertions, 35 deletions
@@ -149,6 +149,7 @@ char *host_fqdn(void) { struct hostent *hp; + /** XXX FIXME: use getaddrinfo instead? */ /* if we got a basename (as we do in Linux) make a FQDN of it */ hp = gethostbyname(tmpbuf); if (hp == (struct hostent *) NULL) @@ -263,43 +264,32 @@ const char *showproto(int proto) char *visbuf(const char *buf) /* visibilize a given string */ { - static char vbuf[BUFSIZ]; - char *tp = vbuf; + static char *vbuf; + static size_t vbufs; + char *tp; + size_t needed; + + needed = strlen(buf) * 5 + 1; /* worst case: HEX, plus NUL byte */ + + if (needed > vbufs) { + vbufs = needed; + vbuf = xrealloc(vbuf, vbufs); + } + + tp = vbuf; while (*buf) { - if (*buf == '"') - { - *tp++ = '\\'; *tp++ = '"'; - buf++; - } - else if (*buf == '\\') - { - *tp++ = '\\'; *tp++ = '\\'; - buf++; - } - else if (isprint((unsigned char)*buf) || *buf == ' ') - *tp++ = *buf++; - else if (*buf == '\n') - { - *tp++ = '\\'; *tp++ = 'n'; - buf++; - } - else if (*buf == '\r') - { - *tp++ = '\\'; *tp++ = 'r'; - buf++; - } - else if (*buf == '\b') - { - *tp++ = '\\'; *tp++ = 'b'; - buf++; - } - else if (*buf < ' ') - { - *tp++ = '\\'; *tp++ = '^'; *tp++ = '@' + *buf; - buf++; - } + if (*buf == '"') { *tp++ = '\\'; *tp++ = '"'; buf++; } + else if (*buf == '\\') { *tp++ = '\\'; *tp++ = '\\'; buf++; } + else if (isprint((unsigned char)*buf) || *buf == ' ') *tp++ = *buf++; + else if (*buf == '\a') { *tp++ = '\\'; *tp++ = 'a'; buf++; } + else if (*buf == '\b') { *tp++ = '\\'; *tp++ = 'b'; buf++; } + else if (*buf == '\f') { *tp++ = '\\'; *tp++ = 'f'; buf++; } + else if (*buf == '\n') { *tp++ = '\\'; *tp++ = 'n'; buf++; } + else if (*buf == '\r') { *tp++ = '\\'; *tp++ = 'r'; buf++; } + else if (*buf == '\t') { *tp++ = '\\'; *tp++ = 't'; buf++; } + else if (*buf == '\v') { *tp++ = '\\'; *tp++ = 'v'; buf++; } else { const char hex[] = "0123456789abcdef"; @@ -312,5 +302,4 @@ char *visbuf(const char *buf) *tp++ = '\0'; return(vbuf); } - /* env.c ends here */ |