FreeCalypso > hg > ueda-linux

annotate netdiff/match/rdpass.c @ 143:7c0fd80782c8

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unet2protel utility added
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 19 Sep 2020 23:46:46 +0000
parents d3eb3790386d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
140
d3eb3790386d netdiff: donl-netmatch put together
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1 #include <ctype.h>
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2 #include <string.h>
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3 #include <strings.h>
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4 #include <stdio.h>
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5 #include <stdlib.h>
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6 #include "struct.h"
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7
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8 extern char *infnames[2];
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9 extern struct pin_info *database;
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10
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11 #define MAX_FIELDS 2
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12
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13 static int pass;
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14 static FILE *inf;
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15 static char linebuf[512];
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16 static int lineno;
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17 static char *fields[MAX_FIELDS];
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18 static unsigned nfields;
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19
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20 static void
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21 parse_into_fields()
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22 {
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23 char *cp;
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24
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25 nfields = 0;
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26 for (cp = linebuf; ; ) {
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27 while (isspace(*cp))
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28 cp++;
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29 if (*cp == '\0' || *cp == '#')
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30 break;
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31 if (nfields >= MAX_FIELDS) {
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32 fprintf(stderr, "%s line %d: too many fields\n",
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33 infnames[pass], lineno);
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34 exit(1);
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35 }
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36 fields[nfields++] = cp;
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37 while (*cp && !isspace(*cp))
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38 cp++;
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39 if (*cp)
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40 *cp++ = '\0';
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41 }
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42 }
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43
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44 static void
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45 existing_pin(p, netname)
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46 struct pin_info *p;
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47 char *netname;
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48 {
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49 char *dp;
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50
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51 if (p->netnames[pass]) {
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52 fprintf(stderr, "%s line %d: multiple nets to pin %s\n",
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53 infnames[pass], lineno, p->pin_name);
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54 exit(1);
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55 }
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56 dp = malloc(strlen(netname) + 1);
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57 if (!dp) {
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58 perror("malloc");
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59 exit(1);
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60 }
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61 strcpy(dp, netname);
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62 p->netnames[pass] = dp;
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63 }
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64
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65 static void
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66 process_connect(netname, pinname)
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67 char *netname, *pinname;
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68 {
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69 struct pin_info *p, **pp;
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70 char *dp;
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71
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72 for (pp = &database; p = *pp; pp = &p->next) {
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73 if (!strcmp(p->pin_name, pinname)) {
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74 existing_pin(p, netname);
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75 return;
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76 }
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77 }
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78 p = malloc(sizeof(struct pin_info) + strlen(netname) + strlen(pinname)
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79 + 2);
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80 if (!p) {
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81 perror("malloc");
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82 exit(1);
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83 }
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84 bzero(p, sizeof(struct pin_info));
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85 dp = (char *)(p + 1);
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86 p->pin_name = dp;
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87 strcpy(dp, pinname);
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88 dp += strlen(pinname) + 1;
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89 p->netnames[pass] = dp;
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90 strcpy(dp, netname);
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91 *pp = p;
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92 }
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93
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94 static void
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95 process_line()
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96 {
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97 parse_into_fields();
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98 if (!nfields)
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99 return;
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100 if (nfields != 2) {
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101 fprintf(stderr, "%s line %d: expected 2 fields\n",
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102 infnames[pass], lineno);
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103 exit(1);
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104 }
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105 process_connect(fields[0], fields[1]);
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106 }
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107
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108 read_pass(pass_no)
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109 {
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110 pass = pass_no;
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111 inf = fopen(infnames[pass], "r");
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112 if (!inf) {
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113 perror(infnames[pass]);
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114 exit(1);
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115 }
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116 lineno = 0;
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117 while (fgets(linebuf, sizeof linebuf, inf)) {
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118 lineno++;
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119 process_line();
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120 }
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121 fclose(inf);
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122 return 0;
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123 }