FreeCalypso > hg > freecalypso-tools

annotate rvinterf/etmsync/symlink.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents e7502631a0f9
children
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0
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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Mychaela Falconia <falcon@freecalypso.org>
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2 * Commands for experimenting with FFS symlinks
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3 */
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4
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5 #include <sys/types.h>
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Mychaela Falconia <falcon@freecalypso.org>
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6 #include <stdio.h>
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Mychaela Falconia <falcon@freecalypso.org>
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7 #include <stdlib.h>
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8 #include <string.h>
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Mychaela Falconia <falcon@freecalypso.org>
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9 #include <strings.h>
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Mychaela Falconia <falcon@freecalypso.org>
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10 #include "etm.h"
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Mychaela Falconia <falcon@freecalypso.org>
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11 #include "ffs.h"
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Mychaela Falconia <falcon@freecalypso.org>
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12 #include "tmffs2.h"
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Mychaela Falconia <falcon@freecalypso.org>
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13 #include "limits.h"
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Mychaela Falconia <falcon@freecalypso.org>
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14 #include "ffslimits.h"
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Mychaela Falconia <falcon@freecalypso.org>
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15 #include "localtypes.h"
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Mychaela Falconia <falcon@freecalypso.org>
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16 #include "localstruct.h"
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Mychaela Falconia <falcon@freecalypso.org>
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17 #include "exitcodes.h"
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18
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19 extern u_char rvi_msg[];
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Mychaela Falconia <falcon@freecalypso.org>
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20 extern int rvi_msg_len;
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21
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Mychaela Falconia <falcon@freecalypso.org>
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22 do_symlink(target, realobj)
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Mychaela Falconia <falcon@freecalypso.org>
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23 char *target, *realobj;
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24 {
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25 u_char cmdpkt[MAX_PKT_TO_TARGET], *dp;
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Mychaela Falconia <falcon@freecalypso.org>
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26 int rc, targlen, reallen;
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27
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28 reallen = strlen(realobj);
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29 if (reallen >= TMFFS_STRING_SIZE) {
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Mychaela Falconia <falcon@freecalypso.org>
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30 printf("error: pathname arg exceeds string length limit\n");
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31 return(ERROR_USAGE);
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32 }
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33 targlen = strlen(target);
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34 if (3 + (reallen+2) + (targlen+2) + 1 > MAX_PKT_TO_TARGET) {
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Mychaela Falconia <falcon@freecalypso.org>
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35 printf("error: symlink request fails to fit into packet\n");
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Mychaela Falconia <falcon@freecalypso.org>
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36 return(ERROR_USAGE);
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37 }
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Mychaela Falconia <falcon@freecalypso.org>
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38 dp = cmdpkt + 1;
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Mychaela Falconia <falcon@freecalypso.org>
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39 *dp++ = ETM_FFS2;
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Mychaela Falconia <falcon@freecalypso.org>
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40 *dp++ = TMFFS_SYMLINK;
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Mychaela Falconia <falcon@freecalypso.org>
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41 *dp++ = reallen + 1;
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42 strcpy(dp, realobj);
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43 dp += reallen + 1;
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44 *dp++ = targlen + 1;
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45 strcpy(dp, target);
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46 dp += targlen + 1;
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Mychaela Falconia <falcon@freecalypso.org>
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47 rc = etm_pkt_exch(cmdpkt, dp - cmdpkt - 1);
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Mychaela Falconia <falcon@freecalypso.org>
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48 if (rc)
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49 return(rc);
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Mychaela Falconia <falcon@freecalypso.org>
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50 if (rvi_msg_len != 5) {
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Mychaela Falconia <falcon@freecalypso.org>
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51 printf("error: TMFFS_SYMLINK response has wrong length\n");
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52 return(ERROR_TARGET);
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53 }
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54 if (rvi_msg[3]) {
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Mychaela Falconia <falcon@freecalypso.org>
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55 report_ffs_err("symlink", rvi_msg[3]);
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56 return(ERROR_TARGET);
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57 }
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58 return(0);
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59 }
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60
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61 cmd_symlink(argc, argv)
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62 char **argv;
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63 {
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64 return do_symlink(argv[1], argv[2]);
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65 }
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66
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Mychaela Falconia <falcon@freecalypso.org>
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67 do_readlink(pathname, databuf, rdret)
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68 char *pathname;
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69 u_char *databuf;
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70 int *rdret;
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71 {
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72 u_char cmdpkt[MAX_PKT_TO_TARGET], *dp;
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Mychaela Falconia <falcon@freecalypso.org>
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73 int rc, slen, sz;
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74
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75 slen = strlen(pathname);
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Mychaela Falconia <falcon@freecalypso.org>
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76 if (slen >= TMFFS_STRING_SIZE) {
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Mychaela Falconia <falcon@freecalypso.org>
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77 printf("error: pathname arg exceeds string length limit\n");
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78 return(ERROR_USAGE);
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79 }
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80 dp = cmdpkt + 1;
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Mychaela Falconia <falcon@freecalypso.org>
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81 *dp++ = ETM_FFS2;
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Mychaela Falconia <falcon@freecalypso.org>
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82 *dp++ = TMFFS_READLINK;
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Mychaela Falconia <falcon@freecalypso.org>
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83 *dp++ = slen + 1;
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Mychaela Falconia <falcon@freecalypso.org>
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84 strcpy(dp, pathname);
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85 dp += slen + 1;
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86 *dp++ = 0; /* dummy 2nd buffer */
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Mychaela Falconia <falcon@freecalypso.org>
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87 rc = etm_pkt_exch(cmdpkt, dp - cmdpkt - 1);
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Mychaela Falconia <falcon@freecalypso.org>
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88 if (rc)
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89 return(rc);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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90 if (rvi_msg[3]) {
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Mychaela Falconia <falcon@freecalypso.org>
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91 report_ffs_err("readlink", rvi_msg[3]);
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Mychaela Falconia <falcon@freecalypso.org>
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92 return(ERROR_TARGET);
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Mychaela Falconia <falcon@freecalypso.org>
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93 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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94 if (rvi_msg_len < 6) {
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Mychaela Falconia <falcon@freecalypso.org>
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95 *rdret = 0;
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96 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
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97 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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98 sz = rvi_msg[4];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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99 if (rvi_msg_len != sz + 6) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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100 printf("error: readlink response has wrong length\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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101 return(ERROR_TARGET);
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Mychaela Falconia <falcon@freecalypso.org>
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102 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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103 bcopy(rvi_msg + 5, databuf, sz);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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104 *rdret = sz;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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105 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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106 }
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Mychaela Falconia <falcon@freecalypso.org>
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107
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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108 cmd_readlink(argc, argv)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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109 char **argv;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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110 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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111 u_char databuf[256];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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112 int rc, sz, off, l;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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114 rc = do_readlink(argv[1], databuf, &sz);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 if (rc)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 return(rc);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 printf("%d bytes read\n", sz);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 for (off = 0; off < sz; off += 16) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 l = sz - off;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 if (l > 16)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 l = 16;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 hexdump_line(off, databuf + off, l);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 return(0);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 do_readlink_sancheck(pathname, databuf)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 char *pathname;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 u_char *databuf;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 int rc, sz;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 rc = do_readlink(pathname, databuf, &sz);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 if (rc)
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 return(rc);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 if (sz < 2 || databuf[sz-1]) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 printf("error: readlink on %s returned garbage\n", pathname);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 return(ERROR_TARGET);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 return(0);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 }