diff options
Diffstat (limited to 'libexec/telnetd/utility.c')
-rw-r--r-- | libexec/telnetd/utility.c | 374 |
1 files changed, 126 insertions, 248 deletions
diff --git a/libexec/telnetd/utility.c b/libexec/telnetd/utility.c index 97478a7..69a61b3 100644 --- a/libexec/telnetd/utility.c +++ b/libexec/telnetd/utility.c @@ -64,8 +64,7 @@ ttloop() { void netflush(); - DIAG(TD_REPORT, {sprintf(nfrontp, "td: ttloop\r\n"); - nfrontp += strlen(nfrontp);}); + DIAG(TD_REPORT, output_data("td: ttloop\r\n")); if (nfrontp-nbackp) { netflush(); } @@ -77,8 +76,7 @@ ttloop() syslog(LOG_INFO, "ttloop: peer died: %m"); exit(1); } - DIAG(TD_REPORT, {sprintf(nfrontp, "td: ttloop read %d chars\r\n", ncc); - nfrontp += strlen(nfrontp);}); + DIAG(TD_REPORT, output_data("td: ttloop read %d chars\r\n", ncc)); netip = netibuf; telrcv(); /* state machine */ if (ncc > 0) { @@ -121,9 +119,8 @@ ptyflush() int n; if ((n = pfrontp - pbackp) > 0) { - DIAG((TD_REPORT | TD_PTYDATA), - { sprintf(nfrontp, "td: ptyflush %d chars\r\n", n); - nfrontp += strlen(nfrontp); }); + DIAG(TD_REPORT | TD_PTYDATA, + output_data("td: ptyflush %d chars\r\n", n)); DIAG(TD_PTYDATA, printdata("pd", pbackp, n)); n = write(pty, pbackp, n); } @@ -246,11 +243,9 @@ netflush() extern int not42; if ((n = nfrontp - nbackp) > 0) { - DIAG(TD_REPORT, - { sprintf(nfrontp, "td: netflush %d chars\r\n", n); - n += strlen(nfrontp); /* get count first */ - nfrontp += strlen(nfrontp); /* then move pointer */ - }); + DIAG(TD_REPORT, { + n += output_data("td: netflush %d chars\r\n", n); + }); /* * if no urgent data, or if the other side appears to be an * old 4.2 client (and thus unable to survive TCP urgent data), @@ -292,33 +287,6 @@ netflush() /* - * writenet - * - * Just a handy little function to write a bit of raw data to the net. - * It will force a transmit of the buffer if necessary - * - * arguments - * ptr - A pointer to a character string to write - * len - How many bytes to write - */ - void -writenet(ptr, len) - register unsigned char *ptr; - register int len; -{ - /* flush buffer if no room for new data) */ - if ((&netobuf[BUFSIZ] - nfrontp) < len) { - /* if this fails, don't worry, buffer is a little big */ - netflush(); - } - - bcopy(ptr, nfrontp, len); - nfrontp += len; - -} /* end of writenet */ - - -/* * miscellaneous functions doing a variety of little jobs follow ... */ @@ -513,12 +481,11 @@ printoption(fmt, option) register int option; { if (TELOPT_OK(option)) - sprintf(nfrontp, "%s %s\r\n", fmt, TELOPT(option)); + output_data("%s %s\r\n", fmt, TELOPT(option)); else if (TELCMD_OK(option)) - sprintf(nfrontp, "%s %s\r\n", fmt, TELCMD(option)); + output_data("%s %s\r\n", fmt, TELCMD(option)); else - sprintf(nfrontp, "%s %d\r\n", fmt, option); - nfrontp += strlen(nfrontp); + output_data("%s %d\r\n", fmt, option); return; } @@ -534,9 +501,8 @@ printsub(direction, pointer, length) return; if (direction) { - sprintf(nfrontp, "td: %s suboption ", + output_data("td: %s suboption ", direction == '<' ? "recv" : "send"); - nfrontp += strlen(nfrontp); if (length >= 3) { register int j; @@ -544,232 +510,192 @@ printsub(direction, pointer, length) j = pointer[length-1]; if (i != IAC || j != SE) { - sprintf(nfrontp, "(terminated by "); - nfrontp += strlen(nfrontp); + output_data("(terminated by "); if (TELOPT_OK(i)) - sprintf(nfrontp, "%s ", TELOPT(i)); + output_data("%s ", TELOPT(i)); else if (TELCMD_OK(i)) - sprintf(nfrontp, "%s ", TELCMD(i)); + output_data("%s ", TELCMD(i)); else - sprintf(nfrontp, "%d ", i); - nfrontp += strlen(nfrontp); + output_data("%d ", i); if (TELOPT_OK(j)) - sprintf(nfrontp, "%s", TELOPT(j)); + output_data("%s", TELOPT(j)); else if (TELCMD_OK(j)) - sprintf(nfrontp, "%s", TELCMD(j)); + output_data("%s", TELCMD(j)); else - sprintf(nfrontp, "%d", j); - nfrontp += strlen(nfrontp); - sprintf(nfrontp, ", not IAC SE!) "); - nfrontp += strlen(nfrontp); + output_data("%d", j); + output_data(", not IAC SE!) "); } } length -= 2; } if (length < 1) { - sprintf(nfrontp, "(Empty suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data("(Empty suboption??\?)"); return; } switch (pointer[0]) { case TELOPT_TTYPE: - sprintf(nfrontp, "TERMINAL-TYPE "); - nfrontp += strlen(nfrontp); + output_data("TERMINAL-TYPE "); switch (pointer[1]) { case TELQUAL_IS: - sprintf(nfrontp, "IS \"%.*s\"", length-2, (char *)pointer+2); + output_data("IS \"%.*s\"", length-2, (char *)pointer+2); break; case TELQUAL_SEND: - sprintf(nfrontp, "SEND"); + output_data("SEND"); break; default: - sprintf(nfrontp, + output_data( "- unknown qualifier %d (0x%x).", pointer[1], pointer[1]); } - nfrontp += strlen(nfrontp); break; case TELOPT_TSPEED: - sprintf(nfrontp, "TERMINAL-SPEED"); - nfrontp += strlen(nfrontp); + output_data("TERMINAL-SPEED"); if (length < 2) { - sprintf(nfrontp, " (empty suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data(" (empty suboption??\?)"); break; } switch (pointer[1]) { case TELQUAL_IS: - sprintf(nfrontp, " IS %.*s", length-2, (char *)pointer+2); - nfrontp += strlen(nfrontp); + output_data(" IS %.*s", length-2, (char *)pointer+2); break; default: if (pointer[1] == 1) - sprintf(nfrontp, " SEND"); + output_data(" SEND"); else - sprintf(nfrontp, " %d (unknown)", pointer[1]); - nfrontp += strlen(nfrontp); + output_data(" %d (unknown)", pointer[1]); for (i = 2; i < length; i++) { - sprintf(nfrontp, " ?%d?", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[i]); } break; } break; case TELOPT_LFLOW: - sprintf(nfrontp, "TOGGLE-FLOW-CONTROL"); - nfrontp += strlen(nfrontp); + output_data("TOGGLE-FLOW-CONTROL"); if (length < 2) { - sprintf(nfrontp, " (empty suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data(" (empty suboption??\?)"); break; } switch (pointer[1]) { case LFLOW_OFF: - sprintf(nfrontp, " OFF"); break; + output_data(" OFF"); break; case LFLOW_ON: - sprintf(nfrontp, " ON"); break; + output_data(" ON"); break; case LFLOW_RESTART_ANY: - sprintf(nfrontp, " RESTART-ANY"); break; + output_data(" RESTART-ANY"); break; case LFLOW_RESTART_XON: - sprintf(nfrontp, " RESTART-XON"); break; + output_data(" RESTART-XON"); break; default: - sprintf(nfrontp, " %d (unknown)", pointer[1]); + output_data(" %d (unknown)", pointer[1]); } - nfrontp += strlen(nfrontp); for (i = 2; i < length; i++) { - sprintf(nfrontp, " ?%d?", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[i]); } break; case TELOPT_NAWS: - sprintf(nfrontp, "NAWS"); - nfrontp += strlen(nfrontp); + output_data("NAWS"); if (length < 2) { - sprintf(nfrontp, " (empty suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data(" (empty suboption??\?)"); break; } if (length == 2) { - sprintf(nfrontp, " ?%d?", pointer[1]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[1]); break; } - sprintf(nfrontp, " %d %d (%d)", + output_data(" %d %d (%d)", pointer[1], pointer[2], (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2]))); - nfrontp += strlen(nfrontp); if (length == 4) { - sprintf(nfrontp, " ?%d?", pointer[3]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[3]); break; } - sprintf(nfrontp, " %d %d (%d)", + output_data(" %d %d (%d)", pointer[3], pointer[4], (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4]))); - nfrontp += strlen(nfrontp); for (i = 5; i < length; i++) { - sprintf(nfrontp, " ?%d?", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[i]); } break; case TELOPT_LINEMODE: - sprintf(nfrontp, "LINEMODE "); - nfrontp += strlen(nfrontp); + output_data("LINEMODE "); if (length < 2) { - sprintf(nfrontp, " (empty suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data(" (empty suboption??\?)"); break; } switch (pointer[1]) { case WILL: - sprintf(nfrontp, "WILL "); + output_data("WILL "); goto common; case WONT: - sprintf(nfrontp, "WONT "); + output_data("WONT "); goto common; case DO: - sprintf(nfrontp, "DO "); + output_data("DO "); goto common; case DONT: - sprintf(nfrontp, "DONT "); + output_data("DONT "); common: - nfrontp += strlen(nfrontp); if (length < 3) { - sprintf(nfrontp, "(no option??\?)"); - nfrontp += strlen(nfrontp); + output_data("(no option??\?)"); break; } switch (pointer[2]) { case LM_FORWARDMASK: - sprintf(nfrontp, "Forward Mask"); - nfrontp += strlen(nfrontp); + output_data("Forward Mask"); for (i = 3; i < length; i++) { - sprintf(nfrontp, " %x", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" %x", pointer[i]); } break; default: - sprintf(nfrontp, "%d (unknown)", pointer[2]); - nfrontp += strlen(nfrontp); + output_data("%d (unknown)", pointer[2]); for (i = 3; i < length; i++) { - sprintf(nfrontp, " %d", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" %d", pointer[i]); } break; } break; case LM_SLC: - sprintf(nfrontp, "SLC"); - nfrontp += strlen(nfrontp); + output_data("SLC"); for (i = 2; i < length - 2; i += 3) { if (SLC_NAME_OK(pointer[i+SLC_FUNC])) - sprintf(nfrontp, " %s", SLC_NAME(pointer[i+SLC_FUNC])); + output_data(" %s", SLC_NAME(pointer[i+SLC_FUNC])); else - sprintf(nfrontp, " %d", pointer[i+SLC_FUNC]); - nfrontp += strlen(nfrontp); + output_data(" %d", pointer[i+SLC_FUNC]); switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { case SLC_NOSUPPORT: - sprintf(nfrontp, " NOSUPPORT"); break; + output_data(" NOSUPPORT"); break; case SLC_CANTCHANGE: - sprintf(nfrontp, " CANTCHANGE"); break; + output_data(" CANTCHANGE"); break; case SLC_VARIABLE: - sprintf(nfrontp, " VARIABLE"); break; + output_data(" VARIABLE"); break; case SLC_DEFAULT: - sprintf(nfrontp, " DEFAULT"); break; + output_data(" DEFAULT"); break; } - nfrontp += strlen(nfrontp); - sprintf(nfrontp, "%s%s%s", + output_data("%s%s%s", pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); - nfrontp += strlen(nfrontp); if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| SLC_FLUSHOUT| SLC_LEVELBITS)) { - sprintf(nfrontp, "(0x%x)", pointer[i+SLC_FLAGS]); - nfrontp += strlen(nfrontp); + output_data("(0x%x)", pointer[i+SLC_FLAGS]); } - sprintf(nfrontp, " %d;", pointer[i+SLC_VALUE]); - nfrontp += strlen(nfrontp); + output_data(" %d;", pointer[i+SLC_VALUE]); if ((pointer[i+SLC_VALUE] == IAC) && (pointer[i+SLC_VALUE+1] == IAC)) i++; } for (; i < length; i++) { - sprintf(nfrontp, " ?%d?", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[i]); } break; case LM_MODE: - sprintf(nfrontp, "MODE "); - nfrontp += strlen(nfrontp); + output_data("MODE "); if (length < 3) { - sprintf(nfrontp, "(no mode??\?)"); - nfrontp += strlen(nfrontp); + output_data("(no mode??\?)"); break; } { @@ -780,24 +706,19 @@ printsub(direction, pointer, length) pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", pointer[2]&MODE_ACK ? "|ACK" : ""); - sprintf(nfrontp, "%s", tbuf[1] ? &tbuf[1] : "0"); - nfrontp += strlen(nfrontp); + output_data("%s", tbuf[1] ? &tbuf[1] : "0"); } if (pointer[2]&~(MODE_EDIT|MODE_TRAPSIG|MODE_ACK)) { - sprintf(nfrontp, " (0x%x)", pointer[2]); - nfrontp += strlen(nfrontp); + output_data(" (0x%x)", pointer[2]); } for (i = 3; i < length; i++) { - sprintf(nfrontp, " ?0x%x?", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" ?0x%x?", pointer[i]); } break; default: - sprintf(nfrontp, "%d (unknown)", pointer[1]); - nfrontp += strlen(nfrontp); + output_data("%d (unknown)", pointer[1]); for (i = 2; i < length; i++) { - sprintf(nfrontp, " %d", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" %d", pointer[i]); } } break; @@ -806,24 +727,20 @@ printsub(direction, pointer, length) register char *cp; register int j, k; - sprintf(nfrontp, "STATUS"); - nfrontp += strlen(nfrontp); + output_data("STATUS"); switch (pointer[1]) { default: if (pointer[1] == TELQUAL_SEND) - sprintf(nfrontp, " SEND"); + output_data(" SEND"); else - sprintf(nfrontp, " %d (unknown)", pointer[1]); - nfrontp += strlen(nfrontp); + output_data(" %d (unknown)", pointer[1]); for (i = 2; i < length; i++) { - sprintf(nfrontp, " ?%d?", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[i]); } break; case TELQUAL_IS: - sprintf(nfrontp, " IS\r\n"); - nfrontp += strlen(nfrontp); + output_data(" IS\r\n"); for (i = 2; i < length; i++) { switch(pointer[i]) { @@ -834,18 +751,15 @@ printsub(direction, pointer, length) common2: i++; if (TELOPT_OK(pointer[i])) - sprintf(nfrontp, " %s %s", cp, TELOPT(pointer[i])); + output_data(" %s %s", cp, TELOPT(pointer[i])); else - sprintf(nfrontp, " %s %d", cp, pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" %s %d", cp, pointer[i]); - sprintf(nfrontp, "\r\n"); - nfrontp += strlen(nfrontp); + output_data("\r\n"); break; case SB: - sprintf(nfrontp, " SB "); - nfrontp += strlen(nfrontp); + output_data(" SB "); i++; j = k = i; while (j < length) { @@ -861,20 +775,17 @@ printsub(direction, pointer, length) } printsub(0, &pointer[i], k - i); if (i < length) { - sprintf(nfrontp, " SE"); - nfrontp += strlen(nfrontp); + output_data(" SE"); i = j; } else i = j - 1; - sprintf(nfrontp, "\r\n"); - nfrontp += strlen(nfrontp); + output_data("\r\n"); break; default: - sprintf(nfrontp, " %d", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" %d", pointer[i]); break; } } @@ -884,86 +795,77 @@ printsub(direction, pointer, length) } case TELOPT_XDISPLOC: - sprintf(nfrontp, "X-DISPLAY-LOCATION "); - nfrontp += strlen(nfrontp); + output_data("X-DISPLAY-LOCATION "); switch (pointer[1]) { case TELQUAL_IS: - sprintf(nfrontp, "IS \"%.*s\"", length-2, (char *)pointer+2); + output_data("IS \"%.*s\"", length-2, (char *)pointer+2); break; case TELQUAL_SEND: - sprintf(nfrontp, "SEND"); + output_data("SEND"); break; default: - sprintf(nfrontp, "- unknown qualifier %d (0x%x).", + output_data("- unknown qualifier %d (0x%x).", pointer[1], pointer[1]); } - nfrontp += strlen(nfrontp); break; case TELOPT_NEW_ENVIRON: - sprintf(nfrontp, "NEW-ENVIRON "); + output_data("NEW-ENVIRON "); goto env_common1; case TELOPT_OLD_ENVIRON: - sprintf(nfrontp, "OLD-ENVIRON"); + output_data("OLD-ENVIRON"); env_common1: - nfrontp += strlen(nfrontp); switch (pointer[1]) { case TELQUAL_IS: - sprintf(nfrontp, "IS "); + output_data("IS "); goto env_common; case TELQUAL_SEND: - sprintf(nfrontp, "SEND "); + output_data("SEND "); goto env_common; case TELQUAL_INFO: - sprintf(nfrontp, "INFO "); + output_data("INFO "); env_common: - nfrontp += strlen(nfrontp); { register int noquote = 2; for (i = 2; i < length; i++ ) { switch (pointer[i]) { case NEW_ENV_VAR: - sprintf(nfrontp, "\" VAR " + noquote); - nfrontp += strlen(nfrontp); + output_data("\" VAR " + noquote); noquote = 2; break; case NEW_ENV_VALUE: - sprintf(nfrontp, "\" VALUE " + noquote); - nfrontp += strlen(nfrontp); + output_data("\" VALUE " + noquote); noquote = 2; break; case ENV_ESC: - sprintf(nfrontp, "\" ESC " + noquote); - nfrontp += strlen(nfrontp); + output_data("\" ESC " + noquote); noquote = 2; break; case ENV_USERVAR: - sprintf(nfrontp, "\" USERVAR " + noquote); - nfrontp += strlen(nfrontp); + output_data("\" USERVAR " + noquote); noquote = 2; break; default: if (isprint(pointer[i]) && pointer[i] != '"') { if (noquote) { - *nfrontp++ = '"'; + output_data("\""); noquote = 0; } - *nfrontp++ = pointer[i]; + output_data("%c", pointer[i]); } else { - sprintf(nfrontp, "\" %03o " + noquote, + output_data("\" %03o " + noquote, pointer[i]); - nfrontp += strlen(nfrontp); noquote = 2; } break; } } if (!noquote) - *nfrontp++ = '"'; + output_data("\""); break; } } @@ -971,83 +873,66 @@ printsub(direction, pointer, length) #if defined(AUTHENTICATION) case TELOPT_AUTHENTICATION: - sprintf(nfrontp, "AUTHENTICATION"); - nfrontp += strlen(nfrontp); + output_data("AUTHENTICATION"); if (length < 2) { - sprintf(nfrontp, " (empty suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data(" (empty suboption??\?)"); break; } switch (pointer[1]) { case TELQUAL_REPLY: case TELQUAL_IS: - sprintf(nfrontp, " %s ", (pointer[1] == TELQUAL_IS) ? + output_data(" %s ", (pointer[1] == TELQUAL_IS) ? "IS" : "REPLY"); - nfrontp += strlen(nfrontp); if (AUTHTYPE_NAME_OK(pointer[2])) - sprintf(nfrontp, "%s ", AUTHTYPE_NAME(pointer[2])); + output_data("%s ", AUTHTYPE_NAME(pointer[2])); else - sprintf(nfrontp, "%d ", pointer[2]); - nfrontp += strlen(nfrontp); + output_data("%d ", pointer[2]); if (length < 3) { - sprintf(nfrontp, "(partial suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data("(partial suboption??\?)"); break; } - sprintf(nfrontp, "%s|%s", + output_data("%s|%s", ((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? "CLIENT" : "SERVER", ((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? "MUTUAL" : "ONE-WAY"); - nfrontp += strlen(nfrontp); { char buf[512]; auth_printsub(&pointer[1], length - 1, buf, sizeof(buf)); - sprintf(nfrontp, "%s", buf); + output_data("%s", buf); } - nfrontp += strlen(nfrontp); break; case TELQUAL_SEND: i = 2; - sprintf(nfrontp, " SEND "); - nfrontp += strlen(nfrontp); + output_data(" SEND "); while (i < length) { if (AUTHTYPE_NAME_OK(pointer[i])) - sprintf(nfrontp, "%s ", AUTHTYPE_NAME(pointer[i])); + output_data("%s ", AUTHTYPE_NAME(pointer[i])); else - sprintf(nfrontp, "%d ", pointer[i]); - nfrontp += strlen(nfrontp); + output_data("%d ", pointer[i]); if (++i >= length) { - sprintf(nfrontp, "(partial suboption??\?)"); - nfrontp += strlen(nfrontp); + output_data("(partial suboption??\?)"); break; } - sprintf(nfrontp, "%s|%s ", + output_data("%s|%s ", ((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? "CLIENT" : "SERVER", ((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? "MUTUAL" : "ONE-WAY"); - nfrontp += strlen(nfrontp); ++i; } break; case TELQUAL_NAME: - i = 2; - sprintf(nfrontp, " NAME \""); - nfrontp += strlen(nfrontp); - while (i < length) - *nfrontp += pointer[i++]; - *nfrontp += '"'; + output_data(" NAME \"%.*s\"", length - 2, pointer + 2); break; default: for (i = 2; i < length; i++) { - sprintf(nfrontp, " ?%d?", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" ?%d?", pointer[i]); } break; } @@ -1057,18 +942,15 @@ printsub(direction, pointer, length) default: if (TELOPT_OK(pointer[0])) - sprintf(nfrontp, "%s (unknown)", TELOPT(pointer[0])); + output_data("%s (unknown)", TELOPT(pointer[0])); else - sprintf(nfrontp, "%d (unknown)", pointer[i]); - nfrontp += strlen(nfrontp); + output_data("%d (unknown)", pointer[i]); for (i = 1; i < length; i++) { - sprintf(nfrontp, " %d", pointer[i]); - nfrontp += strlen(nfrontp); + output_data(" %d", pointer[i]); } break; } - sprintf(nfrontp, "\r\n"); - nfrontp += strlen(nfrontp); + output_data("\r\n"); } /* @@ -1090,26 +972,22 @@ printdata(tag, ptr, cnt) } /* add a line of output */ - sprintf(nfrontp, "%s: ", tag); - nfrontp += strlen(nfrontp); + output_data("%s: ", tag); for (i = 0; i < 20 && cnt; i++) { - sprintf(nfrontp, "%02x", *ptr); - nfrontp += strlen(nfrontp); + output_data("%02x", *ptr); if (isprint(*ptr)) { xbuf[i] = *ptr; } else { xbuf[i] = '.'; } if (i % 2) { - *nfrontp = ' '; - nfrontp++; + output_data(" "); } cnt--; ptr++; } xbuf[i] = '\0'; - sprintf(nfrontp, " %s\r\n", xbuf ); - nfrontp += strlen(nfrontp); + output_data(" %s\r\n", xbuf ); } } #endif /* DIAGNOSTICS */ |