.TH "tools.h" 3 "23 Sep 2009" "Version 5.5" "net-snmp" \" -*- nroff -*-
.ad l
.nh
.SH NAME
tools.h \- 
.SH SYNOPSIS
.br
.PP
.SS "Defines"

.in +1c
.ti -1c
.RI "#define \fBSNMP_MAXPATH\fP   PATH_MAX"
.br
.ti -1c
.RI "#define \fBSNMP_MAXBUF\fP   (1024 * 4)"
.br
.ti -1c
.RI "#define \fBSNMP_MAXBUF_MEDIUM\fP   1024"
.br
.ti -1c
.RI "#define \fBSNMP_MAXBUF_SMALL\fP   512"
.br
.ti -1c
.RI "#define \fBSNMP_MAXBUF_MESSAGE\fP   1500"
.br
.ti -1c
.RI "#define \fBSNMP_MAXOID\fP   64"
.br
.ti -1c
.RI "#define \fBSNMP_MAX_CMDLINE_OIDS\fP   128"
.br
.ti -1c
.RI "#define \fBSNMP_FILEMODE_CLOSED\fP   0600"
.br
.ti -1c
.RI "#define \fBSNMP_FILEMODE_OPEN\fP   0644"
.br
.ti -1c
.RI "#define \fBBYTESIZE\fP(bitsize)   ((bitsize + 7) >> 3)"
.br
.ti -1c
.RI "#define \fBROUNDUP8\fP(x)   ( ( (x+7) >> 3 ) * 8 )"
.br
.ti -1c
.RI "#define \fBSNMP_STRORNULL\fP(x)   ( x ? x : '(null)')"
.br
.ti -1c
.RI "#define \fBSNMP_FREE\fP(s)   do { if (s) { free((void *)s); s=NULL; } } while(0)"
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.RI "\fIFrees a pointer only if it is !NULL and sets its value to NULL. \fP"
.ti -1c
.RI "#define \fBSNMP_SWIPE_MEM\fP(n, s)   do { if (n) free((void *)n); n = s; s=NULL; } while(0)"
.br
.RI "\fIFrees pointer n only if it is !NULL, sets n to s and sets s to NULL. \fP"
.ti -1c
.RI "#define \fBSNMP_MALLOC_STRUCT\fP(s)   (struct s *) calloc(1, sizeof(struct s))"
.br
.RI "\fIMallocs memory of sizeof(struct s), zeros it and returns a pointer to it. \fP"
.ti -1c
.RI "#define \fBSNMP_MALLOC_TYPEDEF\fP(td)   (td *) calloc(1, sizeof(td))"
.br
.RI "\fIMallocs memory of sizeof(t), zeros it and returns a pointer to it. \fP"
.ti -1c
.RI "#define \fBSNMP_ZERO\fP(s, l)   do { if (s) memset(s, 0, l); } while(0)"
.br
.RI "\fIZeros l bytes of memory starting at s. \fP"
.ti -1c
.RI "#define \fBTOUPPER\fP(c)   (c >= 'a' && c <= 'z' ? c - ('a' - 'A') : c)"
.br
.ti -1c
.RI "#define \fBTOLOWER\fP(c)   (c >= 'A' && c <= 'Z' ? c + ('a' - 'A') : c)"
.br
.ti -1c
.RI "#define \fBHEX2VAL\fP(s)   ((isalpha(s) ? (TOLOWER(s)-'a'+10) : (TOLOWER(s)-'0')) & 0xf)"
.br
.ti -1c
.RI "#define \fBVAL2HEX\fP(s)   ( (s) + (((s) >= 10) ? ('a'-10) : '0') )"
.br
.ti -1c
.RI "#define \fBSNMP_MAX\fP(a, b)   ((a) > (b) ? (a) : (b))"
.br
.RI "\fIComputers the maximum of a and b. \fP"
.ti -1c
.RI "#define \fBSNMP_MIN\fP(a, b)   ((a) > (b) ? (b) : (a))"
.br
.RI "\fIComputers the minimum of a and b. \fP"
.ti -1c
.RI "#define \fBSNMP_MACRO_VAL_TO_STR\fP(s)   SNMP_MACRO_VAL_TO_STR_PRIV(s)"
.br
.RI "\fIExpands to string with value of the s. \fP"
.ti -1c
.RI "#define \fBSNMP_MACRO_VAL_TO_STR_PRIV\fP(s)   #s"
.br
.ti -1c
.RI "#define \fBQUITFUN\fP(e, l)"
.br
.ti -1c
.RI "#define \fBDIFFTIMEVAL\fP(now, then, diff)"
.br
.ti -1c
.RI "#define \fBUSM_LENGTH_OID_TRANSFORM\fP   10"
.br
.ti -1c
.RI "#define \fBISTRANSFORM\fP(ttype, toid)"
.br
.ti -1c
.RI "#define \fBENGINETIME_MAX\fP   2147483647"
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.ti -1c
.RI "#define \fBENGINEBOOT_MAX\fP   2147483647"
.br
.ti -1c
.RI "#define \fBsnmp_cstrcat\fP(b, l, o, a, s)   snmp_strcat(b,l,o,a,(const u_char *)s)"
.br
.in -1c
.SS "Typedefs"

.in +1c
.ti -1c
.RI "typedef void * \fBmarker_t\fP"
.br
.in -1c
.SS "Functions"

.in +1c
.ti -1c
.RI "int \fBsnmp_realloc\fP (u_char **buf, size_t *buf_len)"
.br
.RI "\fIThis function increase the size of the buffer pointed at by *buf, which is initially of size *buf_len. \fP"
.ti -1c
.RI "void \fBfree_zero\fP (void *buf, size_t size)"
.br
.RI "\fIzeros memory before freeing it. \fP"
.ti -1c
.RI "u_char * \fBmalloc_random\fP (size_t *size)"
.br
.RI "\fIReturns pointer to allocaed & set buffer on success, size contains number of random bytes filled. \fP"
.ti -1c
.RI "u_char * \fBmalloc_zero\fP (size_t size)"
.br
.ti -1c
.RI "int \fBmemdup\fP (u_char **to, const void *from, size_t size)"
.br
.RI "\fIDuplicates a memory block. \fP"
.ti -1c
.RI "u_int \fBbinary_to_hex\fP (const u_char *input, size_t len, char **output)"
.br
.RI "\fIconverts binary to hexidecimal \fP"
.ti -1c
.RI "int \fBnetsnmp_hex_to_binary\fP (u_char **buf, size_t *buf_len, size_t *offset, int allow_realloc, const char *hex, const char *delim)"
.br
.RI "\fIconvert an ASCII hex string (with specified delimiters) to binary \fP"
.ti -1c
.RI "int \fBsnmp_hex_to_binary\fP (u_char **buf, size_t *buf_len, size_t *offset, int allow_realloc, const char *hex)"
.br
.RI "\fIconvert an ASCII hex string to binary \fP"
.ti -1c
.RI "int \fBhex_to_binary2\fP (const u_char *input, size_t len, char **output)"
.br
.RI "\fIhex_to_binary2 \fP"
.ti -1c
.RI "int \fBsnmp_decimal_to_binary\fP (u_char **buf, size_t *buf_len, size_t *out_len, int allow_realloc, const char *decimal)"
.br
.ti -1c
.RI "int \fBsnmp_strcat\fP (u_char **buf, size_t *buf_len, size_t *out_len, int allow_realloc, const u_char *s)"
.br
.ti -1c
.RI "char * \fBnetsnmp_strdup_and_null\fP (const u_char *from, size_t from_len)"
.br
.RI "\fIcopies a (possible) unterminated string of a given length into a new buffer and null terminates it as well (new buffer MAY be one byte longer to account for this \fP"
.ti -1c
.RI "void \fBdump_chunk\fP (const char *debugtoken, const char *title, const u_char *buf, int size)"
.br
.ti -1c
.RI "char * \fBdump_snmpEngineID\fP (const u_char *buf, size_t *buflen)"
.br
.ti -1c
.RI "marker_t \fBatime_newMarker\fP (void)"
.br
.RI "\fIcreate a new time marker. \fP"
.ti -1c
.RI "void \fBatime_setMarker\fP (marker_t pm)"
.br
.RI "\fIset a time marker. \fP"
.ti -1c
.RI "long \fBatime_diff\fP (marker_t first, marker_t second)"
.br
.RI "\fIReturns the difference (in msec) between the two markers. \fP"
.ti -1c
.RI "u_long \fBuatime_diff\fP (marker_t first, marker_t second)"
.br
.RI "\fIReturns the difference (in u_long msec) between the two markers. \fP"
.ti -1c
.RI "u_long \fBuatime_hdiff\fP (marker_t first, marker_t second)"
.br
.RI "\fIReturns the difference (in u_long 1/100th secs) between the two markers (functionally this is what sysUpTime needs). \fP"
.ti -1c
.RI "int \fBatime_ready\fP (marker_t pm, int deltaT)"
.br
.RI "\fITest: Has (marked time plus delta) exceeded current time (in msec) ? Returns 0 if test fails or cannot be tested (no marker). \fP"
.ti -1c
.RI "int \fBuatime_ready\fP (marker_t pm, unsigned int deltaT)"
.br
.RI "\fITest: Has (marked time plus delta) exceeded current time (in msec) ? Returns 0 if test fails or cannot be tested (no marker). \fP"
.ti -1c
.RI "int \fBmarker_tticks\fP (marker_t pm)"
.br
.RI "\fIReturn the number of timeTicks since the given marker. \fP"
.ti -1c
.RI "int \fBtimeval_tticks\fP (struct timeval *tv)"
.br
.ti -1c
.RI "char * \fBnetsnmp_getenv\fP (const char *name)"
.br
.RI "\fINon Windows: Returns a pointer to the desired environment \fBvariable\fP or NULL if the environment \fBvariable\fP does not exist. \fP"
.ti -1c
.RI "int \fBnetsnmp_addrstr_hton\fP (char *ptr, size_t len)"
.br
.in -1c
.SH "Detailed Description"
.PP 

.PP
Definition in file \fBtools.h\fP.
.SH "Author"
.PP 
Generated automatically by Doxygen for net-snmp from the source code.