diff options
Diffstat (limited to 'src/internal')
| -rw-r--r-- | src/internal/slibtool_lconf_impl.c | 167 |
1 files changed, 102 insertions, 65 deletions
diff --git a/src/internal/slibtool_lconf_impl.c b/src/internal/slibtool_lconf_impl.c index 8e76787..7ad817c 100644 --- a/src/internal/slibtool_lconf_impl.c +++ b/src/internal/slibtool_lconf_impl.c @@ -4,6 +4,7 @@ /* Released under the Standard MIT License; see COPYING.SLIBTOOL. */ /*******************************************************************/ +#include <ctype.h> #include <fcntl.h> #include <stdio.h> #include <stdint.h> @@ -616,6 +617,84 @@ static int slbt_lconf_open( return fdlconf; } +static int slbt_get_lconf_var( + void * addr, + const char * cap, + const char * var, + char (*val)[PATH_MAX]) +{ + const char * mark; + const char * match; + ssize_t len; + + /* init */ + len = strlen(var); + mark = addr; + match = 0; + + memset(*val,0,PATH_MAX); + + /* search for ^var= */ + for (; (mark < cap) && !match; ) { + if ((cap - mark) <= len) + return 0; + + if (!strncmp(mark,var,len)) { + match = mark; + + } else { + while ((*mark != '\n') && (mark < cap)) + mark++; + + while (isspace(*mark) && (mark < cap)) + mark++; + } + } + + /* not found? */ + if (mark == cap) + return 0; + + /* for our purposes, only support non-quoted values */ + match = &match[len]; + mark = match; + + for (; !isspace(*mark) && (mark < cap); ) + mark++; + + /* validate */ + if ((len = mark - match) >= PATH_MAX) + return -1; + + /* copy and validate */ + strncpy(*val,match,len); + + for (mark=*val; *mark; mark++) { + if ((*mark >= 'a') && (*mark <= 'z')) + (void)0; + + else if ((*mark >= 'A') && (*mark <= 'Z')) + (void)0; + + else if ((*mark >= '0') && (*mark <= '9')) + (void)0; + + else if ((*mark == '+') || (*mark == '-')) + (void)0; + + else if ((*mark == '/') || (*mark == '@')) + (void)0; + + else if ((*mark == '.') || (*mark == '_')) + (void)0; + + else + return -1; + } + + return 0; +} + int slbt_get_lconf_flags( struct slbt_driver_ctx * dctx, const char * lconf, @@ -628,10 +707,7 @@ int slbt_get_lconf_flags( const char * cap; uint64_t optshared; uint64_t optstatic; - int optsharedlen; - int optstaticlen; - const char * optsharedstr; - const char * optstaticstr; + char val[PATH_MAX]; /* open relative libtool script */ if ((fdlconf = slbt_lconf_open(dctx,lconf)) < 0) @@ -659,68 +735,29 @@ int slbt_get_lconf_flags( optshared = 0; optstatic = 0; - optsharedstr = "build_libtool_libs="; - optstaticstr = "build_old_libs="; - - optsharedlen = strlen(optsharedstr); - optstaticlen = strlen(optstaticstr); - - for (; mark && mark<cap; ) { - if (!optshared && (cap - mark < optsharedlen)) { - mark = 0; - - } else if (!optstatic && (cap - mark < optstaticlen)) { - mark = 0; - - } else if (!optshared && !strncmp(mark,optsharedstr,optsharedlen)) { - mark += optsharedlen; - - if ((cap - mark >= 3) - && (mark[0]=='n') - && (mark[1]=='o') - && (mark[2]=='\n') - && (mark = &mark[3])) - optshared = SLBT_DRIVER_DISABLE_SHARED; - - else if ((cap - mark >= 4) - && (mark[0]=='y') - && (mark[1]=='e') - && (mark[2]=='s') - && (mark[3]=='\n') - && (mark = &mark[4])) - optshared = SLBT_DRIVER_SHARED; - - if (!optshared) - mark--; - - } else if (!optstatic && !strncmp(mark,optstaticstr,optstaticlen)) { - mark += optstaticlen; - - if ((cap - mark >= 3) - && (mark[0]=='n') - && (mark[1]=='o') - && (mark[2]=='\n') - && (mark = &mark[3])) - optstatic = SLBT_DRIVER_DISABLE_STATIC; - - else if ((cap - mark >= 4) - && (mark[0]=='y') - && (mark[1]=='e') - && (mark[2]=='s') - && (mark[3]=='\n') - && (mark = &mark[4])) - optstatic = SLBT_DRIVER_STATIC; - - if (!optstatic) - mark--; - } else { - for (; (mark<cap) && (*mark!='\n'); ) - mark++; - mark++; - } + /* shared libraries option */ + if (slbt_get_lconf_var(addr,cap,"build_libtool_libs=",&val) < 0) + return SLBT_CUSTOM_ERROR( + dctx,SLBT_ERR_LCONF_PARSE); + + if (!strcmp(val,"yes")) { + optshared = SLBT_DRIVER_SHARED; + + } else if (!strcmp(val,"no")) { + optshared = SLBT_DRIVER_DISABLE_SHARED; + } + + + /* static libraries option */ + if (slbt_get_lconf_var(addr,cap,"build_old_libs=",&val) < 0) + return SLBT_CUSTOM_ERROR( + dctx,SLBT_ERR_LCONF_PARSE); + + if (!strcmp(val,"yes")) { + optstatic = SLBT_DRIVER_STATIC; - if (optshared && optstatic) - mark = 0; + } else if (!strcmp(val,"no")) { + optstatic = SLBT_DRIVER_DISABLE_STATIC; } munmap(addr,st.st_size); |