1 | /* Define _XOPEN_SOURCE to get tempnam prototype with glibc et al -- |
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2 | more general than _INCLUDE_XOPEN_SOURCE used elsewhere `for HP-UX'. */ |
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3 | #define _XOPEN_SOURCE 1 |
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4 | #include "config.h" |
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5 | #include "f2c.h" |
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6 | #include "fio.h" |
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7 | #include <string.h> |
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8 | #ifndef NON_POSIX_STDIO |
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9 | #ifdef MSDOS |
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10 | #include "io.h" |
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11 | #else |
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12 | #include "unistd.h" /* for access */ |
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13 | #endif |
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14 | #endif |
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15 | |
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16 | #ifdef KR_headers |
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17 | extern char *malloc(); |
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18 | #ifdef NON_ANSI_STDIO |
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19 | extern char *mktemp(); |
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20 | #endif |
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21 | extern integer f_clos(); |
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22 | #else |
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23 | #undef abs |
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24 | #undef min |
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25 | #undef max |
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26 | #include <stdlib.h> |
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27 | extern int f__canseek(FILE*); |
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28 | extern integer f_clos(cllist*); |
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29 | #endif |
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30 | |
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31 | #ifdef NON_ANSI_RW_MODES |
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32 | char *f__r_mode[2] = {"r", "r"}; |
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33 | char *f__w_mode[4] = {"w", "w", "r+w", "r+w"}; |
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34 | #else |
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35 | char *f__r_mode[2] = {"rb", "r"}; |
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36 | char *f__w_mode[4] = {"wb", "w", "r+b", "r+"}; |
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37 | #endif |
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38 | |
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39 | static char f__buf0[400], *f__buf = f__buf0; |
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40 | int f__buflen = (int)sizeof(f__buf0); |
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41 | |
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42 | static void |
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43 | #ifdef KR_headers |
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44 | f__bufadj(n, c) int n, c; |
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45 | #else |
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46 | f__bufadj(int n, int c) |
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47 | #endif |
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48 | { |
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49 | unsigned int len; |
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50 | char *nbuf, *s, *t, *te; |
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51 | |
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52 | if (f__buf == f__buf0) |
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53 | f__buflen = 1024; |
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54 | while(f__buflen <= n) |
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55 | f__buflen <<= 1; |
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56 | len = (unsigned int)f__buflen; |
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57 | if (len != f__buflen || !(nbuf = (char*)malloc(len))) |
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58 | f__fatal(113, "malloc failure"); |
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59 | s = nbuf; |
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60 | t = f__buf; |
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61 | te = t + c; |
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62 | while(t < te) |
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63 | *s++ = *t++; |
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64 | if (f__buf != f__buf0) |
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65 | free(f__buf); |
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66 | f__buf = nbuf; |
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67 | } |
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68 | |
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69 | int |
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70 | #ifdef KR_headers |
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71 | f__putbuf(c) int c; |
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72 | #else |
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73 | f__putbuf(int c) |
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74 | #endif |
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75 | { |
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76 | char *s, *se; |
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77 | int n; |
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78 | |
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79 | if (f__hiwater > f__recpos) |
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80 | f__recpos = f__hiwater; |
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81 | n = f__recpos + 1; |
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82 | if (n >= f__buflen) |
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83 | f__bufadj(n, f__recpos); |
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84 | s = f__buf; |
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85 | se = s + f__recpos; |
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86 | if (c) |
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87 | *se++ = c; |
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88 | *se = 0; |
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89 | for(;;) { |
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90 | fputs(s, f__cf); |
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91 | s += strlen(s); |
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92 | if (s >= se) |
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93 | break; /* normally happens the first time */ |
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94 | putc(*s++, f__cf); |
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95 | } |
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96 | return 0; |
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97 | } |
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98 | |
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99 | void |
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100 | #ifdef KR_headers |
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101 | x_putc(c) |
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102 | #else |
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103 | x_putc(int c) |
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104 | #endif |
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105 | { |
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106 | if (f__recpos >= f__buflen) |
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107 | f__bufadj(f__recpos, f__buflen); |
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108 | f__buf[f__recpos++] = c; |
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109 | } |
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110 | |
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111 | #define opnerr(f,m,s) \ |
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112 | do {if(f) {f__init &= ~2; errno= m;} else opn_err(m,s,a); return(m);} while(0) |
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113 | |
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114 | static void |
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115 | #ifdef KR_headers |
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116 | opn_err(m, s, a) int m; char *s; olist *a; |
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117 | #else |
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118 | opn_err(int m, char *s, olist *a) |
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119 | #endif |
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120 | { |
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121 | if (a->ofnm) { |
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122 | /* supply file name to error message */ |
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123 | if (a->ofnmlen >= f__buflen) |
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124 | f__bufadj((int)a->ofnmlen, 0); |
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125 | g_char(a->ofnm, a->ofnmlen, f__curunit->ufnm = f__buf); |
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126 | } |
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127 | f__fatal(m, s); |
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128 | } |
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129 | |
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130 | #ifdef KR_headers |
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131 | integer f_open(a) olist *a; |
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132 | #else |
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133 | integer f_open(olist *a) |
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134 | #endif |
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135 | { unit *b; |
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136 | integer rv; |
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137 | char buf[256], *s, *env; |
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138 | cllist x; |
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139 | int ufmt; |
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140 | FILE *tf; |
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141 | int fd, len; |
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142 | #ifndef NON_UNIX_STDIO |
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143 | int n; |
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144 | #endif |
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145 | if(f__init != 1) f_init(); |
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146 | f__external = 1; |
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147 | if(a->ounit>=MXUNIT || a->ounit<0) |
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148 | err(a->oerr,101,"open"); |
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149 | f__curunit = b = &f__units[a->ounit]; |
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150 | if(b->ufd) { |
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151 | if(a->ofnm==0) |
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152 | { |
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153 | same: if (a->oblnk) |
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154 | b->ublnk = *a->oblnk == 'z' || *a->oblnk == 'Z'; |
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155 | return(0); |
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156 | } |
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157 | #ifdef NON_UNIX_STDIO |
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158 | if (b->ufnm |
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159 | && strlen(b->ufnm) == a->ofnmlen |
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160 | && !strncmp(b->ufnm, a->ofnm, (unsigned)a->ofnmlen)) |
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161 | goto same; |
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162 | #else |
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163 | g_char(a->ofnm,a->ofnmlen,buf); |
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164 | if (f__inode(buf,&n) == b->uinode && n == b->udev) |
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165 | goto same; |
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166 | #endif |
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167 | x.cunit=a->ounit; |
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168 | x.csta=0; |
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169 | x.cerr=a->oerr; |
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170 | if ((rv = f_clos(&x)) != 0) |
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171 | return rv; |
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172 | } |
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173 | b->url = (int)a->orl; |
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174 | b->ublnk = a->oblnk && (*a->oblnk == 'z' || *a->oblnk == 'Z'); |
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175 | if(a->ofm==0) |
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176 | { if(b->url>0) b->ufmt=0; |
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177 | else b->ufmt=1; |
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178 | } |
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179 | else if(*a->ofm=='f' || *a->ofm == 'F') b->ufmt=1; |
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180 | else b->ufmt=0; |
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181 | ufmt = b->ufmt; |
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182 | #ifdef url_Adjust |
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183 | if (b->url && !ufmt) |
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184 | url_Adjust(b->url); |
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185 | #endif |
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186 | if (a->ofnm) { |
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187 | g_char(a->ofnm,a->ofnmlen,buf); |
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188 | if (!buf[0]) |
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189 | opnerr(a->oerr,107,"open"); |
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190 | } |
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191 | else |
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192 | sprintf(buf, "fort.%ld", (long)a->ounit); |
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193 | b->uscrtch = 0; |
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194 | b->uend=0; |
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195 | b->uwrt = 0; |
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196 | b->ufd = 0; |
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197 | b->urw = 3; |
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198 | switch(a->osta ? *a->osta : 'u') |
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199 | { |
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200 | case 'o': |
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201 | case 'O': |
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202 | #ifdef NON_POSIX_STDIO |
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203 | if (!(tf = fopen(buf,"r"))) |
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204 | opnerr(a->oerr,errno,"open"); |
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205 | fclose(tf); |
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206 | #else |
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207 | if (access(buf,0)) |
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208 | opnerr(a->oerr,errno,"open"); |
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209 | #endif |
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210 | break; |
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211 | case 's': |
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212 | case 'S': |
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213 | b->uscrtch=1; |
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214 | #ifdef HAVE_MKSTEMP /* Allow use of TMPDIR preferentially. */ |
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215 | env = getenv("TMPDIR"); |
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216 | if (!env) env = getenv("TEMP"); |
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217 | if (!env) env = "/tmp"; |
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218 | len = strlen(env); |
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219 | if (len > 256 - sizeof "/tmp.FXXXXXX") |
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220 | err (a->oerr, 132, "open"); |
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221 | strcpy(buf, env); |
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222 | strcat(buf, "/tmp.FXXXXXX"); |
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223 | fd = mkstemp(buf); |
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224 | if (fd == -1 || close(fd)) |
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225 | err (a->oerr, 132, "open"); |
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226 | #else /* ! defined (HAVE_MKSTEMP) */ |
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227 | #ifdef HAVE_TEMPNAM /* Allow use of TMPDIR preferentially. */ |
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228 | s = tempnam (0, buf); |
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229 | if (strlen (s) >= sizeof (buf)) |
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230 | err (a->oerr, 132, "open"); |
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231 | (void) strcpy (buf, s); |
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232 | free (s); |
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233 | #else /* ! defined (HAVE_TEMPNAM) */ |
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234 | #ifdef _POSIX_SOURCE |
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235 | tmpnam(buf); |
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236 | #else |
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237 | (void) strcpy(buf,"tmp.FXXXXXX"); |
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238 | (void) mktemp(buf); |
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239 | #endif |
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240 | #endif /* ! defined (HAVE_TEMPNAM) */ |
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241 | #endif /* ! defined (HAVE_MKSTEMP) */ |
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242 | goto replace; |
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243 | case 'n': |
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244 | case 'N': |
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245 | #ifdef NON_POSIX_STDIO |
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246 | if ((tf = fopen(buf,"r")) || (tf = fopen(buf,"a"))) { |
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247 | fclose(tf); |
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248 | opnerr(a->oerr,128,"open"); |
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249 | } |
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250 | #else |
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251 | if (!access(buf,0)) |
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252 | opnerr(a->oerr,128,"open"); |
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253 | #endif |
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254 | /* no break */ |
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255 | case 'r': /* Fortran 90 replace option */ |
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256 | case 'R': |
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257 | replace: |
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258 | if (tf = fopen(buf,f__w_mode[0])) |
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259 | fclose(tf); |
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260 | } |
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261 | |
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262 | b->ufnm=(char *) malloc((unsigned int)(strlen(buf)+1)); |
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263 | if(b->ufnm==NULL) opnerr(a->oerr,113,"no space"); |
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264 | (void) strcpy(b->ufnm,buf); |
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265 | if ((s = a->oacc) && b->url) |
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266 | ufmt = 0; |
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267 | if(!(tf = fopen(buf, f__w_mode[ufmt|2]))) { |
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268 | if (tf = fopen(buf, f__r_mode[ufmt])) |
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269 | b->urw = 1; |
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270 | else if (tf = fopen(buf, f__w_mode[ufmt])) { |
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271 | b->uwrt = 1; |
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272 | b->urw = 2; |
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273 | } |
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274 | else |
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275 | err(a->oerr, errno, "open"); |
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276 | } |
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277 | b->useek = f__canseek(b->ufd = tf); |
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278 | #ifndef NON_UNIX_STDIO |
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279 | if((b->uinode = f__inode(buf,&b->udev)) == -1) |
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280 | opnerr(a->oerr,108,"open"); |
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281 | #endif |
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282 | if(b->useek) |
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283 | if (a->orl) |
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284 | rewind(b->ufd); |
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285 | else if ((s = a->oacc) && (*s == 'a' || *s == 'A') |
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286 | && fseek(b->ufd, 0L, SEEK_END)) |
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287 | opnerr(a->oerr,129,"open"); |
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288 | return(0); |
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289 | } |
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290 | #ifdef KR_headers |
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291 | fk_open(seq,fmt,n) ftnint n; |
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292 | #else |
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293 | fk_open(int seq, int fmt, ftnint n) |
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294 | #endif |
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295 | { char nbuf[10]; |
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296 | olist a; |
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297 | int rtn; |
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298 | int save_init; |
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299 | |
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300 | (void) sprintf(nbuf,"fort.%ld",(long)n); |
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301 | a.oerr=1; |
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302 | a.ounit=n; |
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303 | a.ofnm=nbuf; |
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304 | a.ofnmlen=strlen(nbuf); |
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305 | a.osta=NULL; |
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306 | a.oacc= seq==SEQ?"s":"d"; |
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307 | a.ofm = fmt==FMT?"f":"u"; |
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308 | a.orl = seq==DIR?1:0; |
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309 | a.oblnk=NULL; |
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310 | save_init = f__init; |
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311 | f__init &= ~2; |
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312 | rtn = f_open(&a); |
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313 | f__init = save_init | 1; |
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314 | return rtn; |
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315 | } |
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